To our customers,
Old Company Name in Catalogs and Other Documents
On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology
Corporation, and Renesas Electronics Corporation took over all the business of both
companies. Therefore, although the old company name remains in this document, it is a valid
Renesas Electronics document. We appreciate your understanding.
Renesas Electronics website: http://www.renesas.com
April 1st, 2010
Renesas Electronics Corporation
Issued by: Renesas Electronics Corporation (http://www.renesas.com)
Send any inquiries to http://www.renesas.com/inquiry.
Notice
1.
2.
3.
4.
5.
6.
7.
All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to
additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website.
Renesas Electronics does not assume any liability for infringement of patents, copyrights, or other intellectual property rights
of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.
No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights
of Renesas Electronics or others.
You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part.
Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of
semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software,
and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by
you or third parties arising from the use of these circuits, software, or information.
When exporting the products or technology described in this document, you should comply with the applicable export control
laws and regulations and follow the procedures required by such laws and regulations. You should not use Renesas
Electronics products or the technology described in this document for any purpose relating to military applications or use by
the military, including but not limited to the development of weapons of mass destruction. Renesas Electronics products and
technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited
under any applicable domestic or foreign laws or regulations.
Renesas Electronics has used reasonable care in preparing the information included in this document, but Renesas Electronics
does not warrant that such information is error free. Renesas Electronics assumes no liability whatsoever for any damages
incurred by you resulting from errors in or omissions from the information included herein.
Renesas Electronics products are classified according to the following three quality grades: “Standard”, “High Quality”, and
“Specific”. The recommended applications for each Renesas Electronics product depends on the product’s quality grade, as
indicated below. You must check the quality grade of each Renesas Electronics product before using it in a particular
application. You may not use any Renesas Electronics product for any application categorized as “Specific” without the prior
written consent of Renesas Electronics. Further, you may not use any Renesas Electronics product for any application for
which it is not intended without the prior written consent of Renesas Electronics. Renesas Electronics shall not be in any way
liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for an
application categorized as “Specific” or for which the product is not intended where you have failed to obtain the prior written
consent of Renesas Electronics. The quality grade of each Renesas Electronics product is “Standard” unless otherwise
expressly specified in a Renesas Electronics data sheets or data books, etc.
“Standard”:
8.
9.
10.
11.
12.
Computers; office equipment; communications equipment; test and measurement equipment; audio and visual
equipment; home electronic appliances; machine tools; personal electronic equipment; and industrial robots.
“High Quality”: Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anticrime systems; safety equipment; and medical equipment not specifically designed for life support.
“Specific”:
Aircraft; aerospace equipment; submersible repeaters; nuclear reactor control systems; medical equipment or
systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare
intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life.
You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics,
especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or
damages arising out of the use of Renesas Electronics products beyond such specified ranges.
Although Renesas Electronics endeavors to improve the quality and reliability of its products, semiconductor products have
specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Further,
Renesas Electronics products are not subject to radiation resistance design. Please be sure to implement safety measures to
guard them against the possibility of physical injury, and injury or damage caused by fire in the event of the failure of a
Renesas Electronics product, such as safety design for hardware and software including but not limited to redundancy, fire
control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because
the evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or system
manufactured by you.
Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental
compatibility of each Renesas Electronics product. Please use Renesas Electronics products in compliance with all applicable
laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS
Directive. Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with
applicable laws and regulations.
This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of Renesas
Electronics.
Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this
document or Renesas Electronics products, or if you have any other inquiries.
(Note 1) “Renesas Electronics” as used in this document means Renesas Electronics Corporation and also includes its majorityowned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
User’s Manual
16
The revision list can be viewed directly by
clicking the title page.
The revision list summarizes the locations of
revisions and additions. Details should always
be checked by referring to the relevant text.
H8/3039 Group,
H8/3039F-ZTAT™
Hardware Manual
Renesas 16-Bit Single-Chip Microcomputer
H8 Family / H8/300H Series
H8/3039
H8/3038
HD64F3039F
HD64F3039TE
HD64F3039VF
HD64F3039VTE
HD6433039F
HD6433039TE
HD6433039VF
HD6433039VTE
HD6433038F
HD6433038TE
HD6433038VF
HD6433038VTE
H8/3037
H8/3036
HD6433037F
HD6433037TE
HD6433037VF
HD6433037VTE
HD6433036F
HD6433036TE
HD6433036VF
HD6433036VTE
Rev.3.00 2007.03
Notes regarding these materials
1. This document is provided for reference purposes only so that Renesas customers may select the appropriate
Renesas products for their use. Renesas neither makes warranties or representations with respect to the
accuracy or completeness of the information contained in this document nor grants any license to any
intellectual property rights or any other rights of Renesas or any third party with respect to the information in
this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising
out of the use of any information in this document, including, but not limited to, product data, diagrams, charts,
programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military
applications such as the development of weapons of mass destruction or for the purpose of any other military
use. When exporting the products or technology described herein, you should follow the applicable export
control laws and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and
application circuit examples, is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas products listed in this
document, please confirm the latest product information with a Renesas sales office. Also, please pay regular
and careful attention to additional and different information to be disclosed by Renesas such as that disclosed
through our website. (http://www.renesas.com )
5. Renesas has used reasonable care in compiling the information included in this document, but Renesas
assumes no liability whatsoever for any damages incurred as a result of errors or omissions in the information
included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in
light of the total system before deciding about the applicability of such information to the intended application.
Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any
particular application and specifically disclaims any liability arising out of the application and use of the
information in this document or Renesas products.
7. With the exception of products specified by Renesas as suitable for automobile applications, Renesas
products are not designed, manufactured or tested for applications or otherwise in systems the failure or
malfunction of which may cause a direct threat to human life or create a risk of human injury or which require
especially high quality and reliability such as safety systems, or equipment or systems for transportation and
traffic, healthcare, combustion control, aerospace and aeronautics, nuclear power, or undersea communication
transmission. If you are considering the use of our products for such purposes, please contact a Renesas
sales office beforehand. Renesas shall have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who
elect to use Renesas products in any of the foregoing applications shall indemnify and hold harmless Renesas
Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect
to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or
damages arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific
characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use
conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and
injury or damage caused by fire in the event of the failure of a Renesas product, such as safety design for
hardware and software including but not limited to redundancy, fire control and malfunction prevention,
appropriate treatment for aging degradation or any other applicable measures. Among others, since the
evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or
system manufactured by you.
11. In case Renesas products listed in this document are detached from the products to which the Renesas
products are attached or affixed, the risk of accident such as swallowing by infants and small children is very
high. You should implement safety measures so that Renesas products may not be easily detached from your
products. Renesas shall have no liability for damages arising out of such detachment.
12. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written
approval from Renesas.
13. Please contact a Renesas sales office if you have any questions regarding the information contained in this
document, Renesas semiconductor products, or if you have any other inquiries.
Rev.3.00 Mar. 26, 2007 Page ii of xxii
REJ09B0353-0300
General Precautions in the Handling of MPU/MCU Products
The following usage notes are applicable to all MPU/MCU products from Renesas. For detailed usage notes
on the products covered by this manual, refer to the relevant sections of the manual. If the descriptions under
General Precautions in the Handling of MPU/MCU Products and in the body of the manual differ from each
other, the description in the body of the manual takes precedence.
1. Handling of Unused Pins
Handle unused pins in accord with the directions given under Handling of Unused Pins in
the manual.
The input pins of CMOS products are generally in the high-impedance state. In
operation with an unused pin in the open-circuit state, extra electromagnetic noise is
induced in the vicinity of LSI, an associated shoot-through current flows internally, and
malfunctions may occur due to the false recognition of the pin state as an input signal.
Unused pins should be handled as described under Handling of Unused Pins in the
manual.
2. Processing at Power-on
The state of the product is undefined at the moment when power is supplied.
The states of internal circuits in the LSI are indeterminate and the states of register
settings and pins are undefined at the moment when power is supplied.
In a finished product where the reset signal is applied to the external reset pin, the
states of pins are not guaranteed from the moment when power is supplied until the
reset process is completed.
In a similar way, the states of pins in a product that is reset by an on-chip power-on
reset function are not guaranteed from the moment when power is supplied until the
power reaches the level at which resetting has been specified.
3. Prohibition of Access to Reserved Addresses
Access to reserved addresses is prohibited.
The reserved addresses are provided for the possible future expansion of functions. Do
not access these addresses; the correct operation of LSI is not guaranteed if they are
accessed.
4. Clock Signals
After applying a reset, only release the reset line after the operating clock signal has
become stable. When switching the clock signal during program execution, wait until the
target clock signal has stabilized.
When the clock signal is generated with an external resonator (or from an external
oscillator) during a reset, ensure that the reset line is only released after full stabilization
of the clock signal. Moreover, when switching to a clock signal produced with an
external resonator (or by an external oscillator) while program execution is in progress,
wait until the target clock signal is stable.
5. Differences between Products
Before changing from one product to another, i.e. to one with a different type number,
confirm that the change will not lead to problems.
The characteristics of MPU/MCU in the same group but having different type numbers
may differ because of the differences in internal memory capacity and layout pattern.
When changing to products of different type numbers, implement a system-evaluation
test for each of the products.
Rev.3.00 Mar. 26, 2007 Page iii of xxii
REJ09B0353-0300
Rev.3.00 Mar. 26, 2007 Page iv of xxii
REJ09B0353-0300
Preface
The H8/3039 Group comprises high-performance single-chip microcomputers (MCUs) that
integrate system supporting functions together with an H8/300H CPU core.
The H8/300H CPU has a 32-bit internal architecture with sixteen 16-bit general registers, and a
concise, optimized instruction set designed for speed. It can address a 16-Mbyte linear address
space.
The on-chip system supporting functions include ROM, RAM, a 16-bit integrated timer unit
(ITU), a programmable timing pattern controller (TPC), a watchdog timer (WDT), a serial
communication interface (SCI), an A/D converter, I/O ports, and other facilities. Of the two SCI
channels, one has been expanded to support the ISO/IEC 7816-3 smart card interface. Functions
have also been added to reduce power consumption in battery-powered applications: individual
modules can be placed in standby, and the frequency of the system clock supplied to the chip can
be divided down under software control.
The five MCU operating modes offer a choice of expanded mode, single-chip mode, and address
space size, enabling the H8/3039 Group to adapt quickly and flexibly to a variety of conditions.
In addition to its mask-ROM versions, the H8/3039 Group has an F-ZTAT™ version with user
programmable on-chip flash memory that can be programmed on-board. These versions enable
users to respond quickly and flexibly to changing application specifications.
This manual describes the H8/3039 Group hardware. For details of the instruction set, refer to the
H8/300H Series Software Manual.
Note: F-ZTAT is a trademark of Renesas Technology Corp.
Rev.3.00 Mar. 26, 2007 Page v of xxii
REJ09B0353-0300
Rev.3.00 Mar. 26, 2007 Page vi of xxii
REJ09B0353-0300
Main Revisions for This Edition
Item
Page
Revision (See Manual for Details)
All
—
•
Notification of change in company name amended
(Before) Hitachi, Ltd. → (After) Renesas Technology Corp.
•
Product naming convention amended
(Before) H8/3039 Series → (After) H8/3039 Group
2.3 Address Space
20
Figure amended
H'0000
Figure 2.2 Memory
Map
H'FFFF
1. Normal mode (64-Kbyte mode)
5.2.2 Interrupt Priority 91
Registers A and B
(IPRA, IPRB)
Interrupt Priority
Register B (IPRB)
5.2.3 IRQ Status
Register (ISR)
93
5.2.4 IRQ Enable
Register (IER)
94
Description amended
Bit
7
6
5
4
3
2
1
0
IPRB7
IPRB6
—
—
IPRB3
IPRB2
IPRB1
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description amended
Bits 5, 4, 1 and 0—IRQ5, IRQ4, IRQ1 and IRQ0 Flags (IRQ5F,
IRQ4F, IRQ1F, and IRQ0F): These bits indicate the status of
IRQ5, IRQ4, IRQ1, and IRQ0 interrupt requests.
Description amended
Bit
7
6
—
—
Initial value
0
0
Read/Write
R/W
R/W
Reserved bits
Bits 5, 4, 1, and 0—IRQ5, IRQ4, IRQ1, and IRQ0 Enable (IRQ5E,
IRQ4E, IRQ1E, IRQ0E): These bits enable or disable IRQ5 ,
IRQ4 , IRQ1 , IRQ0 interrupts.
Rev.3.00 Mar. 26, 2007 Page vii of xxii
REJ09B0353-0300
Item
Page
Revision (See Manual for Details)
5.3.3 Interrupt Vector
Table
98
Table amended
WOVI (interval timer)
Table 5.3 Interrupt
Sources, Vector
Addresses, and Priority
5.5.4 Usage Notes
109
Figure amended
Figure 5.9 IRQnF Flag
when Interrupt
Exception Handling is
not Executed
1 read 0 written
1 read
0
written
(Inadvertent clearing)
Generation condition (2)
6.4.2 Precautions on
Setting ASTCR and
ABWCR*
131
11.2.8 Bit Rate
Register (BRR)
349
Table 11.3 Examples
of Bit Rates and BRR
Settings in
Asynchronous Mode
351
11.3.4 Synchronous
Operation
Clock
Description amended
Modes 5 and 7
ASTCR0 = 0
ABWCR = H'FC
Description added
The baud rate generator is controlled separately for the
individual channels, so different values may be set for each.
Table amended
φ (MHz)
12
376
Bit Rate
(bits/s)
n
N
Error
(%)
300
2
77
0.16
Description amended
An internal clock generated by the on-chip baud rate generator
or an external clock input from the SCK pin can be selected by
clearing or setting the CKE1 and CKE0 bits in SCR and the C/A
bit in SMR. See table 11.9.
Rev.3.00 Mar. 26, 2007 Page viii of xxii
REJ09B0353-0300
Item
Page
Revision (See Manual for Details)
16.2.1 Connecting a
Crystal Resonator
500
Preliminary deleted
532
Table amended
Table 16.2 Crystal
Resonator Parameters
18.1.3 AC
Characteristics
Table 18.5 Control
Signal Timing
10 MHz
Condition C
18 MHz
Symbol
Min
Max
Min
Max
Min
Max
Unit
Test Conditions
RES setup time
tRESS
200
—
200
—
200
—
ns
Figure 18.10
RES pulse width
tRESW
10
—
10
—
10
—
tcyc
200
—
200
—
200
—
ns
18.1.4 A/D Conversion 535
Characteristics
Newly added
18.2.2 DC
Characteristics
Table amended
Item
Table 18.10
Permissible Output
Currents
A.1 Instruction List
Condition B
8 MHz
Item
Mode programming
tMDS
setup time (MD0, MD1,
MD2)
541
Condition A
Total of 27 pins
including ports 1, 2, 5
and B
Permissible output
low current (total)
576
Table amended
Mnemonic
EEPMOV. W
A.3 Number of States 584
Required for Execution
Table A.4 Number of
Cycles per Instruction
Operand Size
8. Block transfer
instructions
Operation
— if R4 ≠ 0 then
repeat @R5 → @R6
R5+1 → R5
R6+1 → R6
R4−1 → R4
until
R4=0
else next
Table amended
Instruction
Mnemonic
BSR
BSR d:16
Word Data
Access
M
Internal
Operation
N
Normal
2
Advanced
2
Rev.3.00 Mar. 26, 2007 Page ix of xxii
REJ09B0353-0300
All trademarks and registered trademarks are the property of their respective owners.
Rev.3.00 Mar. 26, 2007 Page x of xxii
REJ09B0353-0300
Contents
Section 1 Overview .............................................................................................................
1.1
1.2
1.3
1.4
1
Overview........................................................................................................................... 1
Block Diagram .................................................................................................................. 6
Pin Description.................................................................................................................. 7
1.3.1 Pin Arrangement .................................................................................................. 7
1.3.2 Pin Functions ....................................................................................................... 8
Pin Functions .................................................................................................................... 12
Section 2 CPU ...................................................................................................................... 17
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
Overview...........................................................................................................................
2.1.1 Features................................................................................................................
2.1.2 Differences from H8/300 CPU.............................................................................
CPU Operating Modes ......................................................................................................
Address Space ...................................................................................................................
Register Configuration ......................................................................................................
2.4.1 Overview..............................................................................................................
2.4.2 General Registers .................................................................................................
2.4.3 Control Registers .................................................................................................
2.4.4 Initial CPU Register Values .................................................................................
Data Formats .....................................................................................................................
2.5.1 General Register Data Formats ............................................................................
2.5.2 Memory Data Formats .........................................................................................
Instruction Set ...................................................................................................................
2.6.1 Instruction Set Overview .....................................................................................
2.6.2 Instructions and Addressing Modes .....................................................................
2.6.3 Tables of Instructions Classified by Function......................................................
2.6.4 Basic Instruction Formats ....................................................................................
2.6.5 Notes on Use of Bit Manipulation Instructions....................................................
Addressing Modes and Effective Address Calculation .....................................................
2.7.1 Addressing Modes ...............................................................................................
2.7.2 Effective Address Calculation .............................................................................
Processing States...............................................................................................................
2.8.1 Overview..............................................................................................................
2.8.2 Program Execution State......................................................................................
2.8.3 Exception-Handling State ....................................................................................
2.8.4 Exception-Handling Sequences ...........................................................................
2.8.5 Reset State............................................................................................................
17
17
18
19
20
21
21
22
23
24
25
25
27
28
28
29
31
40
41
41
41
45
49
49
49
50
51
53
Rev.3.00 Mar. 26, 2007 Page xi of xxii
REJ09B0353-0300
2.9
2.8.6 Power-Down State ...............................................................................................
Basic Operational Timing .................................................................................................
2.9.1 Overview..............................................................................................................
2.9.2 On-Chip Memory Access Timing........................................................................
2.9.3 On-Chip Supporting Module Access Timing ......................................................
2.9.4 Access to External Address Space .......................................................................
53
54
54
54
55
56
Section 3 MCU Operating Modes .................................................................................. 57
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Overview...........................................................................................................................
3.1.1 Operating Mode Selection ...................................................................................
3.1.2 Register Configuration.........................................................................................
Mode Control Register (MDCR) ......................................................................................
System Control Register (SYSCR) ...................................................................................
Operating Mode Descriptions ...........................................................................................
3.4.1 Mode 1 .................................................................................................................
3.4.2 Mode 3 .................................................................................................................
3.4.3 Mode 5 .................................................................................................................
3.4.4 Mode 6 .................................................................................................................
3.4.5 Mode 7 .................................................................................................................
Pin Functions in Each Operating Mode ............................................................................
Memory Map in Each Operating Mode ............................................................................
Restrictions on Use of Mode 6..........................................................................................
57
57
58
59
60
62
62
62
62
62
62
63
63
72
Section 4 Exception Handling ......................................................................................... 75
4.1
4.2
4.3
4.4
4.5
4.6
Overview...........................................................................................................................
4.1.1 Exception Handling Types and Priority...............................................................
4.1.2 Exception Handling Operation ............................................................................
4.1.3 Exception Vector Table .......................................................................................
Reset..................................................................................................................................
4.2.1 Overview..............................................................................................................
4.2.2 Reset Sequence ....................................................................................................
4.2.3 Interrupts after Reset............................................................................................
Interrupts...........................................................................................................................
Trap Instruction.................................................................................................................
Stack Status after Exception Handling..............................................................................
Notes on Stack Usage .......................................................................................................
75
75
75
76
78
78
78
80
80
81
81
82
Section 5 Interrupt Controller .......................................................................................... 83
5.1
Overview........................................................................................................................... 83
5.1.1 Features................................................................................................................ 83
5.1.2 Block Diagram..................................................................................................... 84
Rev.3.00 Mar. 26, 2007 Page xii of xxii
REJ09B0353-0300
5.2
5.3
5.4
5.5
5.1.3 Pin Configuration.................................................................................................
5.1.4 Register Configuration.........................................................................................
Register Descriptions ........................................................................................................
5.2.1 System Control Register (SYSCR) ......................................................................
5.2.2 Interrupt Priority Registers A and B (IPRA, IPRB) .............................................
5.2.3 IRQ Status Register (ISR)....................................................................................
5.2.4 IRQ Enable Register (IER) ..................................................................................
5.2.5 IRQ Sense Control Register (ISCR) ....................................................................
Interrupt Sources ...............................................................................................................
5.3.1 External Interrupts ...............................................................................................
5.3.2 Internal Interrupts.................................................................................................
5.3.3 Interrupt Vector Table..........................................................................................
Interrupt Operation............................................................................................................
5.4.1 Interrupt Handling Process...................................................................................
5.4.2 Interrupt Sequence ...............................................................................................
5.4.3 Interrupt Response Time......................................................................................
Usage Notes ......................................................................................................................
5.5.1 Contention between Interrupt and Interrupt-Disabling Instruction ......................
5.5.2 Instructions that Inhibit Interrupts........................................................................
5.5.3 Interrupts during EEPMOV Instruction Execution ..............................................
5.5.4 Usage Notes .........................................................................................................
85
85
86
86
88
93
94
95
96
96
97
97
100
100
105
106
107
107
108
108
108
Section 6 Bus Controller.................................................................................................... 111
6.1
6.2
6.3
6.4
Overview...........................................................................................................................
6.1.1 Features................................................................................................................
6.1.2 Block Diagram .....................................................................................................
6.1.3 Input/Output Pins .................................................................................................
6.1.4 Register Configuration.........................................................................................
Register Descriptions ........................................................................................................
6.2.1 Access State Control Register (ASTCR) .............................................................
6.2.2 Wait Control Register (WCR)..............................................................................
6.2.3 Wait State Controller Enable Register (WCER) ..................................................
6.2.4 Address Control Register (ADRCR)....................................................................
Operation...........................................................................................................................
6.3.1 Area Division .......................................................................................................
6.3.2 Bus Control Signal Timing ..................................................................................
6.3.3 Wait Modes..........................................................................................................
6.3.4 Interconnections with Memory (Example) ..........................................................
Usage Notes ......................................................................................................................
6.4.1 Register Write Timing .........................................................................................
6.4.2 Precautions on Setting ASTCR and ABWCR......................................................
111
111
112
113
113
114
114
115
116
117
119
119
121
123
129
131
131
131
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REJ09B0353-0300
Section 7 I/O Ports .............................................................................................................. 133
7.1
7.2
Overview...........................................................................................................................
Port 1.................................................................................................................................
7.2.1 Overview..............................................................................................................
7.2.2 Register Descriptions ...........................................................................................
7.2.3 Pin Functions in Each Mode ................................................................................
7.3 Port 2.................................................................................................................................
7.3.1 Overview..............................................................................................................
7.3.2 Register Descriptions ...........................................................................................
7.3.3 Pin Functions in Each Mode ................................................................................
7.3.4 Input Pull-Up Transistors.....................................................................................
7.4 Port 3.................................................................................................................................
7.4.1 Overview..............................................................................................................
7.4.2 Register Descriptions ...........................................................................................
7.4.3 Pin Functions in Each Mode ................................................................................
7.5 Port 5.................................................................................................................................
7.5.1 Overview..............................................................................................................
7.5.2 Register Descriptions ...........................................................................................
7.5.3 Pin Functions in Each Mode ................................................................................
7.5.4 Input Pull-Up Transistors.....................................................................................
7.6 Port 6.................................................................................................................................
7.6.1 Overview..............................................................................................................
7.6.2 Register Descriptions ...........................................................................................
7.6.3 Pin Functions in Each Mode ................................................................................
7.7 Port 7.................................................................................................................................
7.7.1 Overview..............................................................................................................
7.7.2 Register Description.............................................................................................
7.8 Port 8.................................................................................................................................
7.8.1 Overview..............................................................................................................
7.8.2 Register Descriptions ...........................................................................................
7.8.3 Pin Functions .......................................................................................................
7.9 Port 9.................................................................................................................................
7.9.1 Overview..............................................................................................................
7.9.2 Register Descriptions ...........................................................................................
7.9.3 Pin Functions .......................................................................................................
7.10 Port A................................................................................................................................
7.10.1 Overview..............................................................................................................
7.10.2 Register Descriptions ...........................................................................................
7.10.3 Pin Functions .......................................................................................................
7.11 Port B ................................................................................................................................
7.11.1 Overview..............................................................................................................
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REJ09B0353-0300
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137
137
138
140
142
142
143
145
147
148
148
148
150
152
152
153
155
156
157
157
158
160
163
163
163
164
164
165
167
168
168
168
170
172
172
173
175
182
182
7.11.2 Register Descriptions ........................................................................................... 182
7.11.3 Pin Functions ....................................................................................................... 184
Section 8 16-Bit Integrated Timer Unit (ITU) ............................................................ 191
8.1
8.2
8.3
8.4
8.5
8.6
Overview...........................................................................................................................
8.1.1 Features................................................................................................................
8.1.2 Block Diagrams ...................................................................................................
8.1.3 Input/Output Pins .................................................................................................
8.1.4 Register Configuration.........................................................................................
Register Descriptions ........................................................................................................
8.2.1 Timer Start Register (TSTR)................................................................................
8.2.2 Timer Synchro Register (TSNC) .........................................................................
8.2.3 Timer Mode Register (TMDR) ............................................................................
8.2.4 Timer Function Control Register (TFCR)............................................................
8.2.5 Timer Output Master Enable Register (TOER) ...................................................
8.2.6 Timer Output Control Register (TOCR) ..............................................................
8.2.7 Timer Counters (TCNT) ......................................................................................
8.2.8 General Registers (GRA, GRB) ...........................................................................
8.2.9 Buffer Registers (BRA, BRB)..............................................................................
8.2.10 Timer Control Registers (TCR) ...........................................................................
8.2.11 Timer I/O Control Register (TIOR) .....................................................................
8.2.12 Timer Status Register (TSR)................................................................................
8.2.13 Timer Interrupt Enable Register (TIER) ..............................................................
CPU Interface....................................................................................................................
8.3.1 16-Bit Accessible Registers .................................................................................
8.3.2 8-Bit Accessible Registers ...................................................................................
Operation...........................................................................................................................
8.4.1 Overview..............................................................................................................
8.4.2 Basic Functions....................................................................................................
8.4.3 Synchronization ...................................................................................................
8.4.4 PWM Mode..........................................................................................................
8.4.5 Reset-Synchronized PWM Mode.........................................................................
8.4.6 Complementary PWM Mode ...............................................................................
8.4.7 Phase Counting Mode ..........................................................................................
8.4.8 Buffering..............................................................................................................
8.4.9 ITU Output Timing ..............................................................................................
Interrupts ...........................................................................................................................
8.5.1 Setting of Status Flags..........................................................................................
8.5.2 Clearing of Status Flags .......................................................................................
8.5.3 Interrupt Sources..................................................................................................
Usage Notes ......................................................................................................................
191
191
194
199
201
204
204
206
208
211
214
216
218
219
220
221
223
225
227
228
228
231
232
232
234
243
245
249
252
261
263
269
272
272
274
275
276
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REJ09B0353-0300
Section 9 Programmable Timing Pattern Controller ................................................. 291
9.1
9.2
9.3
9.4
Overview...........................................................................................................................
9.1.1 Features................................................................................................................
9.1.2 Block Diagram.....................................................................................................
9.1.3 TPC Pins ..............................................................................................................
9.1.4 Registers...............................................................................................................
Register Descriptions ........................................................................................................
9.2.1 Port A Data Direction Register (PADDR) ...........................................................
9.2.2 Port A Data Register (PADR)..............................................................................
9.2.3 Port B Data Direction Register (PBDDR) ...........................................................
9.2.4 Port B Data Register (PBDR) ..............................................................................
9.2.5 Next Data Register A (NDRA) ............................................................................
9.2.6 Next Data Register B (NDRB).............................................................................
9.2.7 Next Data Enable Register A (NDERA)..............................................................
9.2.8 Next Data Enable Register B (NDERB) ..............................................................
9.2.9 TPC Output Control Register (TPCR) .................................................................
9.2.10 TPC Output Mode Register (TPMR) ...................................................................
Operation ..........................................................................................................................
9.3.1 Overview..............................................................................................................
9.3.2 Output Timing .....................................................................................................
9.3.3 Normal TPC Output.............................................................................................
9.3.4 Non-Overlapping TPC Output.............................................................................
9.3.5 TPC Output Triggering by Input Capture ............................................................
Usage Notes ......................................................................................................................
9.4.1 Operation of TPC Output Pins .............................................................................
9.4.2 Note on Non-Overlapping Output........................................................................
291
291
292
293
294
295
295
295
296
296
297
299
301
302
303
306
308
308
309
310
312
314
315
315
315
Section 10 Watchdog Timer ............................................................................................. 317
10.1 Overview...........................................................................................................................
10.1.1 Features................................................................................................................
10.1.2 Block Diagram.....................................................................................................
10.1.3 Pin Configuration.................................................................................................
10.1.4 Register Configuration.........................................................................................
10.2 Register Descriptions ........................................................................................................
10.2.1 Timer Counter (TCNT)........................................................................................
10.2.2 Timer Control/Status Register (TCSR)................................................................
10.2.3 Reset Control/Status Register (RSTCSR) ............................................................
10.2.4 Notes on Register Access.....................................................................................
10.3 Operation ..........................................................................................................................
10.3.1 Watchdog Timer Operation .................................................................................
10.3.2 Interval Timer Operation .....................................................................................
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REJ09B0353-0300
317
317
318
318
319
319
319
320
322
324
326
326
327
10.3.3 Timing of Setting of Overflow Flag (OVF) .........................................................
10.3.4 Timing of Setting of Watchdog Timer Reset Bit (WRST)...................................
10.4 Interrupts ...........................................................................................................................
10.5 Usage Notes ......................................................................................................................
328
329
329
330
Section 11 Serial Communication Interface ................................................................ 331
11.1 Overview...........................................................................................................................
11.1.1 Features................................................................................................................
11.1.2 Block Diagram .....................................................................................................
11.1.3 Input/Output Pins .................................................................................................
11.1.4 Register Configuration.........................................................................................
11.2 Register Descriptions ........................................................................................................
11.2.1 Receive Shift Register (RSR)...............................................................................
11.2.2 Receive Data Register (RDR) ..............................................................................
11.2.3 Transmit Shift Register (TSR) .............................................................................
11.2.4 Transmit Data Register (TDR).............................................................................
11.2.5 Serial Mode Register (SMR)................................................................................
11.2.6 Serial Control Register (SCR)..............................................................................
11.2.7 Serial Status Register (SSR).................................................................................
11.2.8 Bit Rate Register (BRR) ......................................................................................
11.3 Operation...........................................................................................................................
11.3.1 Overview..............................................................................................................
11.3.2 Operation in Asynchronous Mode .......................................................................
11.3.3 Multiprocessor Communication...........................................................................
11.3.4 Synchronous Operation........................................................................................
11.4 SCI Interrupts....................................................................................................................
11.5 Usage Notes ......................................................................................................................
331
331
333
334
335
336
336
336
337
337
338
341
345
349
358
358
360
369
376
384
385
Section 12 Smart Card Interface .....................................................................................
12.1 Overview...........................................................................................................................
12.1.1 Features................................................................................................................
12.1.2 Block Diagram .....................................................................................................
12.1.3 Pin Configuration.................................................................................................
12.1.4 Register Configuration.........................................................................................
12.2 Register Descriptions ........................................................................................................
12.2.1 Smart Card Mode Register (SCMR) ....................................................................
12.2.2 Serial Status Register (SSR).................................................................................
12.3 Operation...........................................................................................................................
12.3.1 Overview..............................................................................................................
12.3.2 Pin Connections ...................................................................................................
12.3.3 Data Format .........................................................................................................
391
391
391
392
393
393
394
394
396
397
397
398
399
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REJ09B0353-0300
12.3.4 Register Settings ..................................................................................................
12.3.5 Clock....................................................................................................................
12.3.6 Data Transfer Operations.....................................................................................
12.4 Usage Note........................................................................................................................
401
403
405
411
Section 13 A/D Converter ................................................................................................. 415
13.1 Overview...........................................................................................................................
13.1.1 Features................................................................................................................
13.1.2 Block Diagram.....................................................................................................
13.1.3 Input Pins .............................................................................................................
13.1.4 Register Configuration.........................................................................................
13.2 Register Descriptions ........................................................................................................
13.2.1 A/D Data Registers A to D (ADDRA to ADDRD) .............................................
13.2.2 A/D Control/Status Register (ADCSR) ...............................................................
13.2.3 A/D Control Register (ADCR) ............................................................................
13.3 CPU Interface....................................................................................................................
13.4 Operation ..........................................................................................................................
13.4.1 Single Mode (SCAN = 0) ....................................................................................
13.4.2 Scan Mode (SCAN = 1).......................................................................................
13.4.3 Input Sampling and A/D Conversion Time .........................................................
13.4.4 External Trigger Input Timing.............................................................................
13.5 Interrupts...........................................................................................................................
13.6 Usage Notes ......................................................................................................................
415
415
416
417
418
419
419
420
422
423
424
424
426
428
429
430
430
Section 14 RAM ..................................................................................................................
14.1 Overview...........................................................................................................................
14.1.1 Block Diagram.....................................................................................................
14.1.2 Register Configuration.........................................................................................
14.2 System Control Register (SYSCR) ...................................................................................
14.3 Operation ..........................................................................................................................
435
435
436
436
437
438
Section 15 ROM .................................................................................................................. 439
15.1 Overview........................................................................................................................... 439
15.2 Overview of Flash Memory .............................................................................................. 440
15.2.1 Features................................................................................................................ 440
15.2.2 Block Diagram..................................................................................................... 441
15.2.3 Pin Configuration................................................................................................. 442
15.2.4 Register Configuration......................................................................................... 442
15.3 Register Descriptions ........................................................................................................ 443
15.3.1 Flash Memory Control Register (FLMCR).......................................................... 443
15.3.2 Erase Block Register (EBR) ................................................................................ 447
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REJ09B0353-0300
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
15.3.3 RAM Control Register (RAMCR) .......................................................................
15.3.4 Flash Memory Status Register (FLMSR).............................................................
On-Board Programming Modes........................................................................................
15.4.1 Boot Mode ...........................................................................................................
15.4.2 User Program Mode.............................................................................................
Programming/Erasing Flash Memory ...............................................................................
15.5.1 Program Mode .....................................................................................................
15.5.2 Program-Verify Mode..........................................................................................
15.5.3 Erase Mode ..........................................................................................................
15.5.4 Erase-Verify Mode...............................................................................................
Flash Memory Protection..................................................................................................
15.6.1 Hardware Protection ............................................................................................
15.6.2 Software Protection..............................................................................................
15.6.3 Error Protection....................................................................................................
15.6.4 NMI Input Disable Conditions.............................................................................
Flash Memory Emulation by RAM...................................................................................
Flash Memory PROM Mode.............................................................................................
15.8.1 PROM Mode Setting............................................................................................
15.8.2 Memory Map .......................................................................................................
15.8.3 PROM Mode Operation .......................................................................................
15.8.4 Memory Read Mode ............................................................................................
15.8.5 Auto-Program Mode ............................................................................................
15.8.6 Auto-Erase Mode .................................................................................................
15.8.7 Status Read Mode ................................................................................................
15.8.8 PROM Mode Transition Time .............................................................................
15.8.9 Notes on Memory Programming..........................................................................
Notes on Flash Memory Programming/Erasing................................................................
Mask ROM Overview .......................................................................................................
15.10.1 Block Diagram .....................................................................................................
Notes on Ordering Mask ROM Version Chip...................................................................
449
451
452
455
460
462
463
464
466
466
468
468
470
471
473
474
475
475
476
476
479
482
484
485
487
488
488
494
494
495
Section 16 Clock Pulse Generator .................................................................................. 497
16.1 Overview...........................................................................................................................
16.1.1 Block Diagram .....................................................................................................
16.2 Oscillator Circuit...............................................................................................................
16.2.1 Connecting a Crystal Resonator...........................................................................
16.2.2 External Clock Input ............................................................................................
16.3 Duty Adjustment Circuit ...................................................................................................
16.4 Prescalers ..........................................................................................................................
16.5 Frequency Divider.............................................................................................................
16.5.1 Register Configuration.........................................................................................
497
498
498
499
501
504
504
504
504
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REJ09B0353-0300
16.5.2 Division Control Register (DIVCR) .................................................................... 505
16.5.3 Usage Notes ......................................................................................................... 506
Section 17 Power-Down State ......................................................................................... 507
17.1 Overview........................................................................................................................... 507
17.2 Register Configuration...................................................................................................... 509
17.2.1 System Control Register (SYSCR) ...................................................................... 509
17.2.2 Module Standby Control Register (MSTCR) ...................................................... 511
17.3 Sleep Mode ....................................................................................................................... 513
17.3.1 Transition to Sleep Mode..................................................................................... 513
17.3.2 Exit from Sleep Mode.......................................................................................... 513
17.4 Software Standby Mode.................................................................................................... 514
17.4.1 Transition to Software Standby Mode ................................................................. 514
17.4.2 Exit from Software Standby Mode ...................................................................... 514
17.4.3 Selection of Oscillator Waiting Time after Exit from Software Standby Mode .. 515
17.4.4 Sample Application of Software Standby Mode.................................................. 516
17.4.5 Usage Note........................................................................................................... 516
17.5 Hardware Standby Mode .................................................................................................. 517
17.5.1 Transition to Hardware Standby Mode................................................................ 517
17.5.2 Exit from Hardware Standby Mode ..................................................................... 517
17.5.3 Timing for Hardware Standby Mode ................................................................... 518
17.6 Module Standby Function................................................................................................. 519
17.6.1 Module Standby Timing ...................................................................................... 519
17.6.2 Read/Write in Module Standby ........................................................................... 519
17.6.3 Usage Notes ......................................................................................................... 519
17.7 System Clock Output Disabling Function......................................................................... 520
Section 18 Electrical Characteristics..............................................................................
18.1 Electrical Characteristics of Mask ROM Version.............................................................
18.1.1 Absolute Maximum Ratings ................................................................................
18.1.2 DC Characteristics ...............................................................................................
18.1.3 AC Characteristics ...............................................................................................
18.1.4 A/D Conversion Characteristics...........................................................................
18.2 Electrical Characteristics of Flash Memory Version ........................................................
18.2.1 Absolute Maximum Ratings ................................................................................
18.2.2 DC Characteristics ...............................................................................................
18.2.3 AC Characteristics ...............................................................................................
18.2.4 A/D Conversion Characteristics...........................................................................
18.2.5 Flash Memory Characteristics .............................................................................
18.3 Operational Timing...........................................................................................................
18.3.1 Bus Timing ..........................................................................................................
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REJ09B0353-0300
521
521
521
522
530
535
536
536
537
543
548
549
552
552
18.3.2
18.3.3
18.3.4
18.3.5
18.3.6
Control Signal Timing .........................................................................................
Clock Timing .......................................................................................................
TPC and I/O Port Timing.....................................................................................
ITU Timing ..........................................................................................................
SCI Input/Output Timing .....................................................................................
556
558
558
559
560
Appendix A Instruction Set .............................................................................................. 561
A.1
A.2
A.3
Instruction List .................................................................................................................. 561
Operation Code Maps ....................................................................................................... 577
Number of States Required for Execution ........................................................................ 580
Appendix B Internal I/O Register Field ........................................................................ 590
B.1
B.2
Addresses .......................................................................................................................... 590
Function ............................................................................................................................ 597
Appendix C I/O Block Diagrams .................................................................................... 655
C.1
C.2
C.3
C.4
C.5
C.6
C.7
C.8
C.9
C.10
Port 1 Block Diagram .......................................................................................................
Port 2 Block Diagram .......................................................................................................
Port 3 Block Diagram .......................................................................................................
Port 5 Block Diagram .......................................................................................................
Port 6 Block Diagram .......................................................................................................
Port 7 Block Diagram .......................................................................................................
Port 8 Block Diagram .......................................................................................................
Port 9 Block Diagram .......................................................................................................
Port A Block Diagram.......................................................................................................
Port B Block Diagram.......................................................................................................
655
656
657
658
659
661
662
664
668
671
Appendix D Pin States ....................................................................................................... 674
D.1
D.2
Port States in Each Mode .................................................................................................. 674
Pin States at Reset ............................................................................................................. 676
Appendix E Timing of Transition to and Recovery
from Hardware Standby Mode................................................................. 679
Appendix F Product Lineup ............................................................................................. 680
Appendix G Package Dimensions ................................................................................... 681
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REJ09B0353-0300
Rev.3.00 Mar. 26, 2007 Page xxii of xxii
REJ09B0353-0300
Section 1 Overview
Section 1 Overview
1.1
Overview
The H8/3039 Group comprises microcomputers (MCUs) that integrate system supporting
functions together with an H8/300H CPU core featuring an original Renesas Technology
architecture.
The H8/300H CPU has a 32-bit internal architecture with sixteen 16-bit general registers, and a
concise, optimized instruction set designed for speed. It can address a 16-Mbyte linear address
space. Its instruction set is upward-compatible at the object-code level with the H8/300 CPU,
enabling easy porting of software from the H8/300 Series.
The on-chip system supporting functions include ROM, RAM, a 16-bit integrated timer unit
(ITU), a programmable timing pattern controller (TPC), a watchdog timer (WDT), a serial
communication interface (SCI), an A/D converter, I/O ports, and other facilities.
The H8/3039 Group consists of four models: the H8/3039 with 128 kbytes of ROM and 4 kbytes
of RAM, the H8/3038 with 64 kbytes of ROM and 2 kbytes of RAM, the H8/3037 with 32 kbytes
of ROM and 1 kbytes of RAM, and the H8/3036 with 16 kbytes of ROM and 512 bytes of RAM.
The five MCU operating modes offer a choice of expanded mode, single-chip mode and address
space size.
In addition to the mask-ROM version of the H8/3039 Group, an F-ZTAT™ version with an onchip flash memory that can be freely programmed and reprogrammed by the user after the board is
installed is also available. This version enables users to respond quickly and flexibly to changing
application specifications, growing production volumes, and other conditions.
Table 1.1 summarizes the features of the H8/3039 Group.
Note: F-ZTAT is a trademark of Renesas Technology Corp.
Rev.3.00 Mar. 26, 2007 Page 1 of 682
REJ09B0353-0300
Section 1 Overview
Table 1.1
Features
Feature
Description
CPU
Upward-compatible with the H8/300 CPU at the object-code level
General-register machine
•
Sixteen 16-bit general registers
(also useable as sixteen 8-bit registers or eight 32-bit registers)
High-speed operation
•
Maximum clock rate: 18 MHz
•
Add/subtract: 111 ns
•
Multiply/divide: 778 ns
Two CPU operating modes
•
Normal mode (64-kbyte address space)
•
Advanced mode (16-Mbyte address space)
Instruction features
•
8/16/32-bit data transfer, arithmetic, and logic instructions
•
Signed and unsigned multiply instructions (8 bits × 8 bits, 16 bits × 16 bits)
•
Signed and unsigned divide instructions (16 bits ÷ 8 bits, 32 bits ÷ 16 bits)
•
Bit accumulator function
•
Bit manipulation instructions with register-indirect specification of bit
positions
Rev.3.00 Mar. 26, 2007 Page 2 of 682
REJ09B0353-0300
Section 1 Overview
Feature
Description
Memory
H8/3039
•
ROM: 128 kbytes
•
RAM: 4 kbytes
H8/3038
•
ROM: 64 kbytes
•
RAM: 2 kbytes
H8/3037
•
ROM: 32 kbytes
•
RAM: 1 kbyte
H8/3036
Interrupt controller
Bus controller
16-bit integrated
timer unit (ITU)
•
ROM: 16 kbytes
•
RAM: 512 bytes
•
Five external interrupt pins: NMI, IRQ0, IRQ1, IRQ4, IRQ5
•
25 internal interrupts
•
Three selectable interrupt priority levels
•
Address space can be partitioned into eight areas, with independent bus
specifications in each area
•
Two-state or three-state access selectable for each area
•
Selection of four wait modes
•
Five 16-bit timer channels, capable of processing up to 12 pulse outputs
or 10 pulse inputs
•
16-bit timer counter (channels 0 to 4)
•
Two multiplexed output compare/input capture pins (channels 0 to 4)
•
Operation can be synchronized (channels 0 to 4)
•
PWM mode available (channels 0 to 4)
•
Phase counting mode available (channel 2)
•
Buffering available (channels 3 and 4)
•
Reset-synchronized PWM mode available (channels 3 and 4)
•
Complementary PWM mode available (channels 3 and 4)
Rev.3.00 Mar. 26, 2007 Page 3 of 682
REJ09B0353-0300
Section 1 Overview
Feature
Description
Programmable
timing pattern
controller (TPC)
•
Maximum 15-bit pulse output, using ITU as time base
•
Up to three 4-bit pulse output groups and one 3-bit pulse output group (or
one 15-bit group, one 8-bit group, or one 7-bit group)
•
Non-overlap mode available
Watchdog timer
(WDT), 1 channel
•
Reset signal can be generated by overflow
•
Reset signal can be output externally (However, not available with the
F-ZTAT version.)
•
Usable as an interval timer
Serial
communication
interface (SCI),
2 channels
•
Selection of asynchronous or synchronous mode
•
Full duplex: can transmit and receive simultaneously
•
On-chip baud-rate generator
•
Smart card interface functions added (SCI0 only)
•
Resolution: 10 bits
•
Eight channels, with selection of single or scan mode
•
Variable analog conversion voltage range
•
Sample-and-hold function
A/D converter
I/O ports
Operating modes
Power-down state
•
Can be externally triggered
•
55 input/output pins
•
8 input-only pins
Five MCU operating modes
Mode
Address Space
Address Pins
Bus Width
Mode 1
1 Mbyte
A0 to A19
8 bits
Mode 3
16 Mbytes
A23 to A0
8 bits
Mode 5
1 Mbyte
A0 to A19
8 bits
Mode 6
64 kbytes
—
—
Mode 7
1 Mbyte
—
—
•
On-chip ROM is disabled in modes 1 and 3
•
Sleep mode
•
Software standby mode
•
Hardware standby mode
•
Module standby function
•
Programmable System clock frequency division
Rev.3.00 Mar. 26, 2007 Page 4 of 682
REJ09B0353-0300
Section 1 Overview
Feature
Description
Other features
•
Product lineup
Model (5 V)
Model (3 V)*
Package
ROM
HD64F3039F
HD64F3039VF
80-pin QFP (FP-80A)
Flash memory
HD64F3039TE
HD64F3039VTE
80-pin TQFP (TFP-80C)
HD6433039F
HD6433039VF
80-pin QFP (FP-80A)
HD6433039TE
HD6433039VTE
80-pin TQFP (TFP-80C)
HD6433038F
HD6433038VF
80-pin QFP (FP-80A)
HD6433038TE
HD6433038VTE
80-pin TQFP (TFP-80C)
HD6433037F
HD6433037VF
80-pin QFP (FP-80A)
HD6433037TE
HD6433037VTE
80-pin TQFP (TFP-80C)
HD6433036F
HD6433036VF
80-pin QFP (FP-80A)
HD6433036TE
HD6433036VTE
80-pin TQFP (TFP-80C)
On-chip clock oscillator
Mask ROM
Mask ROM
Mask ROM
Mask ROM
Note: * There are two 3 V versions: one with VCC = 2.7 V to 5.5 V and φ = 2 to 8 MHz,
and one with VCC = 3.0 V to 5.5 V and φ = 2 to 10 MHz. However, there is only
one flash memory version, with VCC = 3.0 to 5.5 V and φ = 2 to 10 MHz.
Rev.3.00 Mar. 26, 2007 Page 5 of 682
REJ09B0353-0300
Section 1 Overview
1.2
Block Diagram
VCC
VCC
VSS
VSS
VSS
P37/D7
P36/D6
P35/D5
P34/D4
P33/D3
P32/D2
P31/D1
P30/D0
Figure 1.1 shows an internal block diagram of the H8/3039 Group.
Port 3
Address bus
Data bus (upper)
MD2
MD1
MD0
EXTAL
XTAL
φ
STBY
RES
RESO/FWE*
NMI
Port 7
P77/AN7
P76/AN6
P75/AN5
P74/AN4
P73/AN3
P72/AN2
P71/AN1
P70/AN0
PA7/TP7/TIOCB2/A20
PA6/TP6/TIOCA2/A21
PA5/TP5/TIOCB1/A22
PA4/TP4/TIOCA1/A23
PA3/TP3/TIOCB0/TCLKD
PA2/TP2/TIOCA0/TCLKC
PA1/TP1/TCLKB
PA0/TP0/TCLKA
PB7/TP15/ADTRG
PB5/TP13/TOCXB4
PB4/TP12/TOCXA4
PB3/TP11/TIOCB4
PB2/TP10/TIOCA4
PB1/TP9/TIOCB3
PB0/TP8/TIOCA3
Port A
Figure 1.1 Block Diagram
Rev.3.00 Mar. 26, 2007 Page 6 of 682
REJ09B0353-0300
Port 5
Port 2
Port 1
P17/A7
P16/A6
P15/A5
P14/A4
P13/A3
P12/A2
P11/A1
P10/A0
P95/SCK1/IRQ5
P94/SCK0/IRQ4
P93/RxD1
P92/RxD0
P91/TxD1
P90/TxD0
A/D converter
AVCC
AVSS
Port 8
Programmable
timing pattern
controller (TPC)
Note: * Mask ROM: RESO
Flash memory: FWE
P27/A15
P26/A14
P25/A13
P24/A12
P23/A11
P22/A10
P21/A9
P20/A8
Port 9
Serial
communication
interface
(SCI) × 2 channel
16-bit
integrated
timer unit
(ITU)
Port B
Interrupt
controller
P53/A19
P52/A18
P51/A17
P50/A16
Watchdog
timer
(WDT)
RAM
P81/IRQ1
P80/IRQ0
Bus
controller
Clock osc.
H8/300H CPU
ROM
(Flash memory,
mask ROM)
Port 6
P65/WR
P64/RD
P63/AS
P60/WAIT
Data bus (lower)
Section 1 Overview
1.3
Pin Description
1.3.1
Pin Arrangement
PA3/TP3/TIOCB0/TCLKD
PA1/TP1/TCLKB
PA0/TP0/TCLKA
P95/SCK1/IRQ5
P93/RxD1
P91/TxD1
P81/IRQ1
P80/IRQ0
AVcc
P77/AN7
P76/AN6
P75/AN5
P74/AN4
P73/AN3
P72/AN2
74
73
72
71
70
69
68
67
66
65
64
63
62
61
PA4/TP4/TIOCA1/A23
77
PA2/TP2/TIOCA0/TCLKC
PA5/TP5/TIOCB1/A22
78
75
PA6/TP6/TIOCA2/A21
79
76
PA7/TP7/TIOCB2/A20
80
Figure 1.2 shows the pin arrangement of the H8/3039 Group.
TIOCA3/TP8/PB0
1
60
P71/AN1
TIOCB3/TP9/PB1
2
59
P70/AN0
TIOCA4/TP10/PB2
3
58
AVSS
TIOCB4/TP11/PB3
4
57
RESO/FWE*
TOCXA4/TP12/PB4
5
56
P65/WR
TOCXB4/TP13/PB5
6
55
P64/RD
MD2
7
54
P63/AS
ADTRG/TP15/PB7
8
53
VCC
TxD0/P90
9
52
XTAL
RxD0/P92
10
51
EXTAL
Top view
(FP-80A, TFP-80C)
34
35
36
37
38
39
40
A12/P24
A13/P25
A14/P26
A15/P27
A16/P50
A17/P51
P52/A18
A11/P23
41
A10/P22
20
33
P53/A19
D7/P37
32
42
A9/P21
19
31
P60/WAIT
D6/P36
A8/P20
43
30
18
VSS
MD0
D5/P35
29
MD1
44
A7/P17
45
17
A6/P16
16
D4/P34
28
D3/P33
27
φ
A5/P15
46
26
15
A4/P14
STBY
D2/P32
25
47
A3/P13
14
24
RES
D1/P31
A2/P12
48
A1/P11
13
23
NMI
D0/P30
22
VSS
49
21
50
12
VCC
11
VSS
A0/P10
IRQ4/SCK0/P94
Note: * Mask ROM: RESO
Flash memory: FWE
Figure 1.2 Pin Arrangement (FP-80A, TFP-80C Top View)
Rev.3.00 Mar. 26, 2007 Page 7 of 682
REJ09B0353-0300
Section 1 Overview
1.3.2
Pin Functions
Pin Assignments in Each Mode
Table 1.2 lists the FP-80A and TFP-80C pin assignments in each mode.
Table 1.2
FP-80A and TFP-80C Pin Assignments in Each Mode
Pin Name
Pin
No.
PROM Mode
Flash memory
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
1
PB0/TP8/
TIOCA3
PB0/TP8/
TIOCA3
PB0/TP8/
TIOCA3
PB0/TP8/
TIOCA3
PB0/TP8/
TIOCA3
NC
2
PB1/TP9/
TIOCB3
PB1/TP9/
TIOCB3
PB1/TP9/
TIOCB3
PB1/TP9/
TIOCB3
PB1/TP9/
TIOCB3
NC
3
PB2/TP10/
TIOCA4
PB2/TP10/
TIOCA4
PB2/TP10/
TIOCA4
PB2/TP10/
TIOCA4
PB2/TP10/
TIOCA4
NC
4
PB3/TP11/
TIOCB4
PB3/TP11/
TIOCB4
PB3/TP11/
TIOCB4
PB3/TP11/
TIOCB4
PB3/TP11/
TIOCB4
NC
5
PB4/TP12/
TOCXA4
PB4/TP12/
TOCXA4
PB4/TP12/
TOCXA4
PB4/TP12/
TOCXA4
PB4/TP12/
TOCXA4
NC
6
PB5/TP13/
TOCXB4
PB5/TP13/
TOCXB4
PB5/TP13/
TOCXB4
PB5/TP13/
TOCXB4
PB5/TP13/
TOCXB4
NC
7
MD2
MD2
MD2
MD2
MD2
VSS
8
PB7/TP15/
ADTRG
PB7/TP15/
ADTRG
PB7/TP15/
ADTRG
PB7/TP15/
ADTRG
PB7/TP15/
ADTRG
NC
9
P90/TxD0
P90/TxD0
P90/TxD0
P90/TxD0
P90/TxD0
NC
10
P92/RxD0
P92/RxD0
P92/RxD0
P92/RxD0
P92/RxD0
VSS
11
P94/SCK0/
IRQ4
P94/SCK0/
IRQ4
P94/SCK0/
IRQ4
P94/SCK0/
IRQ4
P94/SCK0/
IRQ4
NC
12
VSS
VSS
VSS
VSS
VSS
VSS
13
D0
D0
D0
P30
P30
I/O0
14
D1
D1
D1
P31
P31
I/O1
15
D2
D2
D2
P32
P32
I/O2
16
D3
D3
D3
P33
P33
I/O3
17
D4
D4
D4
P34
P34
I/O4
Rev.3.00 Mar. 26, 2007 Page 8 of 682
REJ09B0353-0300
Section 1 Overview
Pin Name
Pin
No.
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
PROM Mode
Flash memory
18
D5
D5
D5
P35
P35
I/O5
19
D6
D6
D6
P36
P36
I/O6
20
D7
D7
D7
P37
P37
I/O7
21
VCC
VCC
VCC
VCC
VCC
VCC
22
A0
A0
P10/A0
P10
P10
A0
23
A1
A1
P11/A1
P11
P11
A1
24
A2
A2
P12/A2
P12
P12
A2
25
A3
A3
P13/A3
P13
P13
A3
26
A4
A4
P14/A4
P14
P14
A4
27
A5
A5
P15/A5
P15
P15
A5
28
A6
A6
P16/A6
P16
P16
A6
29
A7
A7
P17/A7
P17
P17
A7
30
VSS
VSS
VSS
VSS
VSS
VSS
31
A8
A8
P20/A8
P20
P20
A8
32
A9
A9
P21/A9
P21
P21
A9
33
A10
A10
P22/A10
P22
P22
A10
34
A11
A11
P23/A11
P23
P23
A11
35
A12
A12
P24/A12
P24
P24
A12
36
A13
A13
P25/A13
P25
P25
A13
37
A14
A14
P26/A14
P26
P26
A14
38
A15
A15
P27/A15
P27
P27
A15
39
A16
A16
P50/A16
P50
P50
A16
40
A17
A17
P51/A17
P51
P51
VSS
41
A18
A18
P52/A18
P52
P52
VSS
42
A19
A19
P53/A19
P53
P53
VSS
43
P60/WAIT
P60/WAIT
P60/WAIT
P60
P60
NC
44
MD0
MD0
MD0
MD0
MD0
VSS
45
MD1
MD1
MD1
MD1
MD1
VSS
46
φ
φ
φ
φ
φ
NC
Rev.3.00 Mar. 26, 2007 Page 9 of 682
REJ09B0353-0300
Section 1 Overview
Pin Name
Pin
No.
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
PROM Mode
Flash memory
47
STBY
STBY
STBY
STBY
STBY
VCC
48
RES
RES
RES
RES
RES
RES
49
NMI
NMI
NMI
NMI
NMI
VCC
50
VSS
VSS
VSS
VSS
VSS
VSS
51
EXTAL
EXTAL
EXTAL
EXTAL
EXTAL
EXTAL
52
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
53
VCC
VCC
VCC
VCC
VCC
VCC
54
AS
AS
AS
P63
P63
NC
55
RD
RD
RD
P64
P64
NC
56
WR
WR
WR
P65
P65
VCC
57
RESO/
FWE*
RESO/
FWE*
RESO/
FWE*
RESO/
FWE*
RESO/
FWE*
FWE
58
AVSS
AVSS
AVSS
AVSS
AVSS
VSS
59
P70/AN0
P70/AN0
P70/AN0
P70/AN0
P70/AN0
NC
60
P71/AN1
P71/AN1
P71/AN1
P71/AN1
P71/AN1
NC
61
P72/AN2
P72/AN2
P72/AN2
P72/AN2
P72/AN2
NC
62
P73/AN3
P73/AN3
P73/AN3
P73/AN3
P73/AN3
NC
63
P74/AN4
P74/AN4
P74/AN4
P74/AN4
P74/AN4
NC
64
P75/AN5
P75/AN5
P75/AN5
P75/AN5
P75/AN5
NC
65
P76/AN6
P76/AN6
P76/AN6
P76/AN6
P76/AN6
NC
66
P77/AN7
P77/AN7
P77/AN7
P77/AN7
P77/AN7
NC
67
AVCC
AVCC
AVCC
AVCC
AVCC
VCC
68
P80/IRQ0
P80/IRQ0
P80/IRQ0
P80/IRQ0
P80/IRQ0
VSS
69
P81/IRQ1
P81/IRQ1
P81/IRQ1
P81/IRQ1
P81/IRQ1
VSS
70
P91/TxD1
P91/TxD1
P91/TxD1
P91/TxD1
P91/TxD1
NC
71
P93/RxD1
P93/RxD1
P93/RxD1
P93/RxD1
P93/RxD1
NC
72
P95/SCK1/
IRQ5
P95/SCK1/
IRQ5
P95/SCK1/
IRQ5
P95/SCK1/
IRQ5
P95/SCK1/
IRQ5
VCC
73
PA0/TP0/
TCLKA
PA0/TP0/
TCLKA
PA0/TP0/
TCLKA
PA0/TP0/
TCLKA
PA0/TP0/
TCLKA
CE
Rev.3.00 Mar. 26, 2007 Page 10 of 682
REJ09B0353-0300
Section 1 Overview
Pin Name
Pin
No.
PROM Mode
Flash memory
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
74
PA1/TP1/
TCLKB
PA1/TP1/
TCLKB
PA1/TP1/
TCLKB
PA1/TP1/
TCLKB
PA1/TP1/
TCLKB
OE
75
PA2/TP2/
TIOCA0/
TCLKC
PA2/TP2/
TIOCA0/
TCLKC
PA2/TP2/
TIOCA0/
TCLKC
PA2/TP2/
TIOCA0/
TCLKC
PA2/TP2/
TIOCA0/
TCLKC
WE
76
PA3/TP3/
TIOCB0/
TCLKD
PA3/TP3/
TIOCB0/
TCLKD
PA3/TP3/
TIOCB0/
TCLKD
PA3/TP3/
TIOCB0/
TCLKD
PA3/TP3/
TIOCB0/
TCLKD
NC
77
PA4/TP4/
TIOCA1
PA4/TP4/
TIOCA1/A23
PA4/TP4/
TIOCA1
PA4/TP4/
TIOCA1
PA4/TP4/
TIOCA1
NC
78
PA5/TP5/
TIOCB1
PA5/TP5/
TIOCB1/A22
PA5/TP5/
TIOCB1
PA5/TP5/
TIOCB1
PA5/TP5/
TIOCB1
NC
79
PA6/TP6/
TIOCA2
PA6/TP6/
TIOCA2/A21
PA6/TP6/
TIOCA2
PA6/TP6/
TIOCA2
PA6/TP6/
TIOCA2
NC
80
PA7/TP7/
TIOCB2
A20
PA7/TP7/
TIOCB2
PA7/TP7/
TIOCB2
PA7/TP7/
TIOCB2
NC
Notes: Pins marked NC should be left unconnected.
For details about PROM mode see section 15, ROM.
* Mask ROM: RESO
Flash Memory: FWE
Rev.3.00 Mar. 26, 2007 Page 11 of 682
REJ09B0353-0300
Section 1 Overview
1.4
Pin Functions
Table 1.3 summarizes the pin functions.
Table 1.3
Pin Functions
Type
Symbol
Pin No.
I/O
Name and Function
Power
VCC
21,
53
Input
Power: For connection to the power supply.
Connect all VCC pins to the system power
supply.
VSS
12,
30,
50
Input
Ground: For connection to ground (0 V).
Connect all VSS pins to the 0-V system power
supply.
XTAL
52
Input
For connection to a crystal resonator
For examples of crystal resonator and
external clock input, see section 16, Clock
Pulse Generator.
EXTAL
51
Input
For connection to a crystal resonator or input
of an external clock signal. For examples of
crystal resonator and external clock input, see
section 16, Clock Pulse Generator.
φ
46
Output
System clock: Supplies the system clock to
external devices
MD2,
MD1,
MD0
7,
45,
44
Input
Mode 2 to mode 0: For setting the operating
mode, as follows. These pins should not be
changed during operation.
Clock
Operating
mode control
Rev.3.00 Mar. 26, 2007 Page 12 of 682
REJ09B0353-0300
MD2
MD1
MD0
Operating Mode
0
0
0
—
0
0
1
Mode 1
0
1
0
—
0
1
1
Mode 3
1
0
0
—
1
0
1
Mode 5
1
1
0
Mode 6
1
1
1
Mode 7
Section 1 Overview
Type
Symbol
Pin No.
I/O
Name and Function
System
control
RES
48
Input
Reset input: When driven low, this pin resets
the chip
RESO/
FWE
57
Output/
Input
Reset output (Mask ROM version): Outputs
WDT-generated reset signal to an external
device.
Write enable signal (F-ZTAT version): Flash
memory write control signal.
STBY
47
Input
Standby: When driven low, this pin forces a
transition to hardware standby mode
NMI
49
Input
Nonmaskable interrupt: Requests a
nonmaskable interrupt
IRQ5, IRQ4 72, 11,
IRQ1, IRQ0 69, 68
Input
Interrupt request 5, 4, 1, 0: Maskable
interrupt request pins
Address bus
A23 to A20,
A19 to A8,
A7 to A0
77 to 80,
42 to 31,
29 to 22
Output
Address bus: Outputs address signals
Data bus
D7 to D0
20 to 13
Input/
output
Data bus: Bidirectional data bus
Bus control
AS
54
Output
Address strobe: Goes low to indicate valid
address output on the address bus
RD
55
Output
Read: Goes low to indicate reading from the
external address space.
WR
56
Output
Write: Goes low to indicate writing to the
external address space indicates valid data on
the data bus.
WAIT
43
Input
Wait: Requests insertion of wait states in bus
cycles during access to the external address
space.
TCLKD to
TCLKA
76 to 73
Input
Clock input A to D: External clock inputs
TIOCA4 to
TIOCA0
3, 1, 79,
77, 75
Input/
Output
Input capture/output compare A4 to A0:
GRA4 to GRA0 output compare or input
capture, or PWM output
TIOCB4 to
TIOCB0
4, 2, 80,
78, 76
Input/
output
Input capture/output compare B4 to B0
GRB4 to GRB0 output compare or input
capture, or PWM output
TOCXA4
5
Output
Output compare XA4: PWM output
TOCXB4
6
Output
Output compare XB4: PWM output
Interrupts
16-bit
integrated
timer unit
(ITU)
Rev.3.00 Mar. 26, 2007 Page 13 of 682
REJ09B0353-0300
Section 1 Overview
Type
I/O
Name and Function
Programmable TP15,
8, 6 to 1
timing pattern TP13 to TP0 80 to 73
controller
(TPC)
Output
TPC output 15, 13 to 0 : Pulse output
Serial communication
interface
(SCI)
A/D
converter
I/O ports
Symbol
Pin No.
TxD1,
TxD0
70, 9
Output
Transmit data:(channels 0 and 1): SCI data
output
RxD1,
RxD0
71, 10
Input
Receive data:(channels 0 and 1): SCI data
input
SCK1,
SCK0
72, 11
Input/
output
Serial clock:(channels 0 and 1): SCI clock
input/output
AN7 to AN0 66 to 59
Input
Analog 7 to 0: Analog input pins
ADTRG
8
Input
A/D trigger: External trigger input for starting
A/D conversion
AVCC
67
Input
Power supply pin and reference voltage input
pin for the A/D converter. Connect to the
system power supply when not using the A/D
converter.
AVSS
58
Input
Ground pin for the A/D converter. Connect to
system power-supply (0 V).
P17 to P10
29 to 22
Input/
output
Port 1: Eight input/output pins. The direction
of each pin can be selected in the port 1 data
direction register (P1DDR).
P27 to P20
38 to 31
Input/
output
Port 2: Eight input/output pins. The direction
of each pin can be selected in the port 2 data
direction register (P2DDR).
P37 to P30
20 to 13
Input/
output
Port 3: Eight input/output pins. The direction
of each pin can be selected in the port 3 data
direction register (P3DDR).
P53 to P50
42 to 39
Input/
output
Port 5: Four input/output pins. The direction of
each pin can be selected in the port 5 data
direction register (P5DDR).
P65 to P63, 56 to 54,
P60
43
Input/
output
Port 6: Four input/output pins. The direction of
each pin can be selected in the port 6 data
direction register (P6DDR).
P77 to P70
66 to 59
Input
Port 7: Eight input pins
P81, P80
69, 68
Input/
output
Port 8: Two input/output pins. The direction of
each pin can be selected in the port 8 data
direction register (P8DDR).
Rev.3.00 Mar. 26, 2007 Page 14 of 682
REJ09B0353-0300
Section 1 Overview
Type
Symbol
Pin No.
I/O
Name and Function
I/O ports
P95 to
P90
72, 11
71, 10
70, 9
Input/
output
Port 9: Six input/output pins. The direction of
each pin can be selected in the port 9 data
direction register (P9DDR).
PA7 to
PA0
80 to 73
Input/
output
Port A: Eight input/output pins. The direction
of each pin can be selected in the port A data
direction register (PADDR).
PB7, PB5
to PB0
8, 6to1
Input/
output
Port B: Seven input/output pins. The direction
of each pin can be selected in the port B data
direction register (PBDDR).
Rev.3.00 Mar. 26, 2007 Page 15 of 682
REJ09B0353-0300
Section 1 Overview
Rev.3.00 Mar. 26, 2007 Page 16 of 682
REJ09B0353-0300
Section 2 CPU
Section 2 CPU
2.1
Overview
The H8/300H CPU is a high-speed central processing unit with an internal 32-bit architecture that
is upward-compatible with the H8/300 CPU. The H8/300H CPU has sixteen 16-bit general
registers, can address a 16-Mbyte linear address space, and is ideal for realtime control.
2.1.1
Features
The H8/300H CPU has the following features.
• Upward compatibility with H8/300 CPU
Can execute H8/300 series object programs without alteration
• General-register architecture
Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers)
• Sixty-two basic instructions
8/16/32-bit arithmetic and logic instructions
Multiply and divide instructions
Powerful bit-manipulation instructions
• Eight addressing modes
Register direct [Rn]
Register indirect [@ERn]
Register indirect with displacement [@(d:16, ERn) or @(d:24, ERn)]
Register indirect with post-increment or pre-decrement [@ERn+ or @–ERn]
Absolute address [@aa:8, @aa:16, or @aa:24]
Immediate [#xx:8, #xx:16, or #xx:32]
Program-counter relative [@(d:8, PC) or @(d:16, PC)]
Memory indirect [@@aa:8]
• 16-Mbyte linear address space
• High-speed operation
All frequently-used instructions execute in two to four states
Maximum clock frequency:
18 MHz
8/16/32-bit register-register add/subtract: 111 ns
8 × 8-bit register-register multiply:
778 ns
16 ÷ 8-bit register-register divide:
778 ns
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Section 2 CPU
16 × 16-bit register-register multiply:
1222 ns
32 ÷ 16-bit register-register divide:
1222 ns
• Two CPU operating modes
Normal mode
Advanced mode
• Low-power mode
Transition to power-down state by SLEEP instruction
2.1.2
Differences from H8/300 CPU
In comparison to the H8/300 CPU, the H8/300H has the following enhancements.
• More general registers
Eight 16-bit registers have been added.
• Expanded address space
Advanced mode supports a maximum 16-Mbyte address space.
Normal mode supports the same 64-kbyte address space as the H8/300 CPU.
• Enhanced addressing
The addressing modes have been enhanced to make effective use of the 16-Mbyte address
space.
• Enhanced instructions
Data transfer, arithmetic, and logic instructions can operate on 32-bit data.
Signed multiply/divide instructions and other instructions have been added.
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Section 2 CPU
2.2
CPU Operating Modes
The H8/300H CPU has two operating modes: normal and advanced. Normal mode supports a
maximum 64-kbyte address space. Advanced mode supports up to 16 Mbytes. See figure 2.1.
Unless specified otherwise, all descriptions in this manual refer to advanced mode.
Normal mode
Maximum 64 kbytes, program
and data areas combined
Advanced mode
Maximum 16 Mbytes, program
and data areas combined
CPU operating modes
Figure 2.1 CPU Operating Modes
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Section 2 CPU
2.3
Address Space
The maximum address space of the H8/300H CPU is 16 Mbytes. This LSI allows selection of a
normal mode and advanced mode 1-Mbyte mode or 16-Mbyte mode for the address space
depending on the MCU operation mode. Figure 2.2 shows the address ranges of the H8/3039
Group. For further details see section 3.6, Memory Map in Each Operating Mode.
The 1-Mbyte operating mode uses 20-bit addressing. The upper 4 bits of effective addresses are
ignored.
H'0000
H'00000
H'000000
H'FFFF
H'FFFFF
H'FFFFFF
(a) 1-Mbyte mode
1. Normal mode (64-Kbyte mode)
(b) 16-Mbyte mode
2. Advanced mode
Figure 2.2 Memory Map
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Section 2 CPU
2.4
Register Configuration
2.4.1
Overview
The H8/300H CPU has the internal registers shown in figure 2.3. There are two types of registers:
general registers and control registers.
General Registers (ERn)
15
0 7
0 7
0
ER0
E0
R0H
R0L
ER1
E1
R1H
R1L
ER2
E2
R2H
R2L
ER3
E3
R3H
R3L
ER4
E4
R4H
R4L
ER5
E5
R5H
R5L
ER6
E6
R6H
R6L
ER7
E7
R7H
R7L
(SP)
Control Registers (CR)
23
0
PC
7 6 5 4 3 2 1 0
CCR I UI H U N Z V C
Legend:
SP: Stack pointer
PC: Program counter
CCR: Condition code register
Interrupt mask bit
I:
User bit or interrupt mask bit
UI:
Half-carry flag
H:
User bit
U:
Negative flag
N:
Zero flag
Z:
Overflow flag
V:
Carry flag
C:
Figure 2.3 CPU Registers
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Section 2 CPU
2.4.2
General Registers
The H8/300H CPU has eight 32-bit general registers. These general registers are all functionally
alike and can be used without distinction between data registers and address registers. When a
general register is used as a data register, it can be accessed as a 32-bit, 16-bit, or 8-bit register.
When the general registers are used as 32-bit registers or as address registers, they are designated
by the letters ER (ER0 to ER7).
The ER registers divide into 16-bit general registers designated by the letters E (E0 to E7) and R
(R0 to R7). These registers are functionally equivalent, providing a maximum sixteen 16-bit
registers. The E registers (E0 to E7) are also referred to as extended registers.
The R registers divide into 8-bit general registers designated by the letters RH (R0H to R7H) and
RL (R0L to R7L). These registers are functionally equivalent, providing a maximum sixteen 8-bit
registers.
Figure 2.4 illustrates the usage of the general registers. The usage of each register can be selected
independently.
• Address registers
• 32-bit registers
• 16-bit registers
• 8-bit registers
E registers
(extended registers)
E0 to E7
RH registers
R0H to R7H
ER registers
ER0 to ER7
R registers
R0 to R7
RL registers
R0L to R7L
Figure 2.4 Usage of General Registers
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Section 2 CPU
General register ER7 has the function of stack pointer (SP) in addition to its general-register
function, and is used implicitly in exception handling and subroutine calls. Figure 2.5 shows the
stack.
Free area
SP (ER7)
Stack area
Figure 2.5 Stack
2.4.3
Control Registers
The control registers are the 24-bit program counter (PC) and the 8-bit condition code register
(CCR).
Program Counter (PC)
This 24-bit counter indicates the address of the next instruction the CPU will execute. The length
of all CPU instructions is 2 bytes (one word) or a multiple of 2 bytes, so the least significant PC
bit is ignored. When an instruction is fetched, the least significant PC bit is regarded as 0.
Condition Code Register (CCR)
This 8-bit register contains internal CPU status information, including the interrupt mask bit (I)
and half-carry (H), negative (N), zero (Z), overflow (V), and carry (C) flags.
Bit 7—Interrupt Mask Bit (I): Masks interrupts other than NMI when set to 1. NMI is accepted
regardless of the I bit setting. The I bit is set to 1 at the start of an exception-handling sequence.
Bit 6—User Bit or Interrupt Mask Bit (UI): Can be written and read by software using the
LDC, STC, ANDC, ORC, and XORC instructions. This bit can also be used as an interrupt mask
bit. For details see section 5, Interrupt Controller.
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Section 2 CPU
Bit 5—Half-Carry Flag (H): When the ADD.B, ADDX.B, SUB.B, SUBX.B, CMP.B, or NEG.B
instruction is executed, this flag is set to 1 if there is a carry or borrow at bit 3, and cleared to 0
otherwise. When the ADD.W, SUB.W, CMP.W, or NEG.W instruction is executed, the H flag is
set to 1 if there is a carry or borrow at bit 11, and cleared to 0 otherwise. When the ADD.L,
SUB.L, CMP.L, or NEG.L instruction is executed, the H flag is set to 1 if there is a carry or
borrow at bit 27, and cleared to 0 otherwise.
Bit 4—User Bit (U): Can be written and read by software using the LDC, STC, ANDC, ORC, and
XORC instructions.
Bit 3—Negative Flag (N): Indicates the most significant bit (sign bit) of data.
Bit 2—Zero Flag (Z): Set to 1 to indicate zero data, and cleared to 0 to indicate non-zero data.
Bit 1—Overflow Flag (V): Set to 1 when an arithmetic overflow occurs, and cleared to 0 at other
times.
Bit 0—Carry Flag (C): Set to 1 when a carry occurs, and cleared to 0 otherwise. Used by:
• Add instructions, to indicate a carry
• Subtract instructions, to indicate a borrow
• Shift and rotate instructions, to store the value shifted out of the end bit
The carry flag is also used as a bit accumulator by bit manipulation instructions.
Some instructions leave flag bits unchanged. Operations can be performed on CCR by the LDC,
STC, ANDC, ORC, and XORC instructions. The N, Z, V, and C flags are used by conditional
branch (Bcc) instructions.
For the action of each instruction on the flag bits, see appendix A.1, Instruction List. For the I and
UI bits, see section 5, Interrupt Controller.
2.4.4
Initial CPU Register Values
In reset exception handling, PC is initialized to a value loaded from the vector table, and the I bit
in CCR is set to 1. The other CCR bits and the general registers are not initialized. In particular,
the stack pointer (ER7) is not initialized. The stack pointer must therefore be initialized by an
MOV.L instruction executed immediately after a reset.
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Section 2 CPU
2.5
Data Formats
The H8/300H CPU can process 1-bit, 4-bit (BCD), 8-bit (byte), 16-bit (word), and 32-bit
(longword) data. Bit-manipulation instructions operate on 1-bit data by accessing bit n (n = 0, 1, 2,
…, 7) of byte operand data. The DAA and DAS decimal-adjust instructions treat byte data as two
digits of 4-bit BCD data.
2.5.1
General Register Data Formats
Figures 2.6 and 2.7 show the data formats in general registers.
General
Register
Data Type
Data Format
7
1-bit data
0
RnH
7 6 5 4 3 2 1 0
RnL
Don't care
Don't care
7
1-bit data
7
4-bit BCD data
4 3
0
RnH
Upper digit Lower digit
RnL
Don't care
Don't care
7
4-bit BCD data
7
Byte data
0
0
Don't care
MSB
RnL
4 3
Upper digit Lower digit
RnH
Byte data
0
7 6 5 4 3 2 1 0
LSB
7
0
MSB
LSB
Don't care
Legend:
RnH: General register RH
RnL: General register RL
Figure 2.6 General Register Data Formats
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Section 2 CPU
Data Type
General
Register
Word data
Rn
Word data
Data Format
15
0
MSB
LSB
15
0
MSB
LSB
En
31
16 15
0
Longword data ERn
MSB
Legend:
ERn: General register
En:
General register E
Rn:
General register R
MSB: Most significant bit
LSB: Least significant bit
Figure 2.7 General Register Data Formats
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LSB
Section 2 CPU
2.5.2
Memory Data Formats
Figure 2.8 shows the data formats on memory. The H8/300H CPU can access word data and
longword data on memory, but word or longword data must begin at an even address. If an attempt
is made to access word or longword data at an odd address, no address error occurs but the least
significant bit of the address is regarded as 0, so the access starts at the preceding address. This
also applies to instruction fetches.
Data Type
Address
Data Format
7
1-bit data
Address L
7
Byte data
Address L
MSB
Word data
Address 2m
MSB
0
6
5
4
Address 2n
2
1
0
LSB
Address 2m + 1
Longword data
3
LSB
MSB
Address 2n + 1
Address 2n + 2
Address 2n + 3
LSB
Figure 2.8 Memory Data Formats
When ER7 (SP) is used as an address register to access the stack, the operand size should be word
size or longword size.
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Section 2 CPU
2.6
Instruction Set
2.6.1
Instruction Set Overview
The H8/300H CPU has 62 types of instructions, which are classified as shown in table 2.1.
Table 2.1
Instruction Classification
Function
Instruction
Types
1
1
2
2
Data transfer
MOV, PUSH* , POP* , MOVTPE* , MOVFPE*
Arithmetic operations
ADD, SUB, ADDX, SUBX, INC, DEC, ADDS, SUBS, DAA, DAS,
MULXU, MULXS, DIVXU, DIVXS, CMP, NEG, EXTS, EXTU
18
Logic operations
AND, OR, XOR, NOT
4
Shift operations
SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL, ROTXR
8
Bit manipulation
BSET, BCLR, BNOT, BTST, BAND, BIAND, BOR, BIOR, BXOR,
BIXOR, BLD, BILD, BST, BIST
14
Branch
Bcc* , JMP, BSR, JSR, RTS
5
System control
TRAPA, RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP
9
Block data transfer
EEPMOV
1
3
3
Total 62 types
Notes: 1. POP.W Rn is identical to MOV.W @SP+, Rn.
PUSH.W Rn is identical to MOV.W Rn, @–SP.
POP.L ERn is identical to MOV.L @SP+, Rn.
PUSH.L ERn is identical to MOV.L Rn, @–SP.
2. These instructions are not available on the H8/3039 Group.
3. Bcc is a generic branching instruction.
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Section 2 CPU
2.6.2
Instructions and Addressing Modes
Table 2.2 indicates the instructions available in the H8/300H CPU.
Table 2.2
Instructions and Addressing Modes
Implied
@aa:24
BWL BWL
@@aa:8
B
@aa:16
@aa:8
@ERn+/@–ERn
@(d:24, ERn)
@ERn
BWL BWL BWL BWL BWL BWL
@(d:16,PC)
MOV
@(d:8, PC)
Data
transfer
Rn
Instruction
#xx
Function
@(d:16,ERn)
Addressing Modes
—
—
—
—
POP, PUSH
—
—
—
—
—
—
—
—
—
—
—
—
WL
MOVFPE,
MOVTPE
—
—
—
—
—
—
—
B
—
—
—
—
—
BWL BWL
—
—
—
—
—
—
—
—
—
—
—
WL BWL
—
—
—
—
—
—
—
—
—
—
—
Arithmetic ADD, CMP
operations
SUB
ADDX, SUBX
B
B
—
—
—
—
—
—
—
—
—
—
—
ADDS, SUBS
—
L
—
—
—
—
—
—
—
—
—
—
—
INC, DEC
—
BWL
—
—
—
—
—
—
—
—
—
—
—
DAA, DAS
—
B
—
—
—
—
—
—
—
—
—
—
—
MULXU,
MULXS,
DIVXU, DIVXS
—
BW
—
—
—
—
—
—
—
—
—
—
—
NEG
—
BWL
—
—
—
—
—
—
—
—
—
—
—
—
WL
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
EXTU, EXTS
Logic
AND, OR,
operations XOR
NOT
BWL BWL
—
BWL
—
—
—
—
—
—
—
—
—
—
—
Shift instructions
—
BWL
—
—
—
—
—
—
—
—
—
—
—
Bit manipulation
—
B
B
—
—
—
B
—
—
—
—
—
—
Branch
Bcc, BSR
—
—
—
—
—
—
—
—
—
—
—
JMP, JSR
—
—
—
—
—
—
—
RTS
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Section 2 CPU
@(d:16,ERn)
@(d:24, ERn)
@ERn+/@–ERn
@aa:8
@aa:16
@aa:24
@(d:8, PC)
@(d:16,PC)
@@aa:8
TRAPA
—
—
—
—
—
—
—
—
—
—
—
—
RTE
—
—
—
—
—
—
—
—
—
—
—
—
SLEEP
—
—
—
—
—
—
—
—
—
—
—
—
LDC
B
B
W
W
W
W
—
W
W
—
—
—
—
STC
—
B
W
W
W
W
—
W
W
—
—
—
—
ANDC, ORC,
XORC
B
—
—
—
—
—
—
—
—
—
—
—
—
NOP
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Instruction
Block data transfer
Legend:
B: Byte
W: Word
L: Longword
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Implied
@ERn
System
control
Rn
Function
#xx
Addressing Modes
BW
Section 2 CPU
2.6.3
Tables of Instructions Classified by Function
Tables 2.3 to 2.10 summarize the instructions in each functional category. The operation notation
used in these tables is defined as follows.
Operation Notation
Rd
General register (destination)*
Rs
General register (source)*
Rn
General register*
ERn
General register (32-bit register or address register)
(EAd)
Destination operand
(EAs)
Source operand
CCR
Condition code register
N
N (negative) flag of CCR
Z
Z (zero) flag of CCR
V
V (overflow) flag of CCR
C
C (carry) flag of CCR
PC
Program counter
SP
Stack pointer
#IMM
Immediate data
disp
Displacement
+
Addition
–
Subtraction
×
Multiplication
÷
Division
∧
Logical AND
∨
Logical OR
⊕
Exclusive logical OR
→
Move
¬
NOT (logical complement)
:3/:8/:16/:24
3-, 8-, 16-, or 24-bit length
Note:
*
General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0
to R7, E0 to E7), and 32-bit data or address registers (ER0 to ER7).
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Section 2 CPU
Table 2.3
Data Transfer Instructions
Instruction
Size*
Function
MOV
B/W/L
(EAs) → Rd, Rs → (EAd)
Moves data between two general registers or between a general
register and memory, or moves immediate data to a general register.
MOVFPE
B
(EAs) → Rd
Cannot be used in the H8/3039 Group.
MOVTPE
B
Rs → (EAs)
Cannot be used in the H8/3039 Group.
POP
W/L
@SP+ → Rn
Pops a general register from the stack. POP.W Rn is identical to
MOV.W @SP+, Rn. Similarly, POP.L ERn is identical to MOV.L
@SP+, ERn.
PUSH
W/L
Rn → @–SP
Pushes a general register onto the stack. PUSH.W Rn is identical to
MOV.W Rn, @–SP. Similarly, PUSH.L ERn is identical to MOV.L ERn,
@–SP.
Note:
*
Size refers to the operand size.
B: Byte
W: Word
L: Longword
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Section 2 CPU
Table 2.4
Arithmetic Operation Instructions
Instruction
Size*
Function
ADD,
SUB
B/W/L
Rd ± Rs → Rd, Rd ± #IMM → Rd
ADDX,
SUBX
B
INC,
DEC
B/W/L
ADDS,
SUBS
L
DAA,
DAS
B
MULXU
B/W
Performs addition or subtraction on data in two general registers, or on
immediate data and data in a general register. (Immediate byte data
cannot be subtracted from data in a general register. Use the SUBX or
ADD instruction.)
Rd ± Rs ± C → Rd, Rd ± #IMM ± C → Rd
Performs addition or subtraction with carry on data in two general
registers, or on immediate data and data in a general register.
Rd ± 1 → Rd, Rd ± 2 → Rd
Increments or decrements a general register by 1 or 2. (Byte operands
can be incremented or decremented by 1 only.)
Rd ± 1 → Rd, Rd ± 2 → Rd, Rd ± 4 → Rd
Adds or subtracts the value 1, 2, or 4 to or from data in a 32-bit register.
Rd decimal adjust → Rd
Decimal-adjusts an addition or subtraction result in a general register by
referring to CCR to produce 4-bit BCD data.
Rd × Rs → Rd
Performs unsigned multiplication on data in two general registers: either
8 bits × 8 bits → 16 bits or 16 bits × 16 bits → 32 bits.
MULXS
B/W
Rd × Rs → Rd
Performs signed multiplication on data in two general registers: either 8
bits × 8 bits → 16 bits or 16 bits × 16 bits → 32 bits.
Note:
*
Size refers to the operand size.
B: Byte
W: Word
L: Longword
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Section 2 CPU
Instruction
Size*
Function
DIVXU
B/W
Rd ÷ Rs → Rd
Performs unsigned division on data in two general registers: either 16
bits ÷ 8 bits → 8-bit quotient and 8-bit remainder or 32 bits ÷ 16 bits →
16-bit quotient and 16-bit remainder.
DIVXS
B/W
Rd ÷ Rs → Rd
Performs signed division on data in two general registers: either 16 bits
÷ 8 bits → 8-bit quotient and 8-bit remainder, or 32 bits ÷ 16 bits →
16-bit quotient and 16-bit remainder.
CMP
B/W/L
Rd – Rs, Rd – #IMM
Compares data in a general register with data in another general
register or with immediate data, and sets CCR according to the result.
NEG
B/W/L
0 – Rd → Rd
Takes the two's complement (arithmetic complement) of data in a
general register.
EXTS
W/L
Rd (sign extension) → Rd
Extends byte data in the lower 8 bits of a 16-bit register to word data,
or extends word data in the lower 16 bits of a 32-bit register to
longword data, by extending the sign bit.
EXTU
W/L
Rd (zero extension) → Rd
Extends byte data in the lower 8 bits of a 16-bit register to word data,
or extends word data in the lower 16 bits of a 32-bit register to
longword data, by padding with zeros.
Note:
*
Size refers to the operand size.
B: Byte
W: Word
L: Longword
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Section 2 CPU
Table 2.5
Logic Operation Instructions
Instruction
Size*
Function
AND
B/W/L
Rd ∧ Rs → Rd, Rd ∧ #IMM → Rd
Performs a logical AND operation on a general register and another
general register or immediate data.
OR
B/W/L
Rd ∨ Rs → Rd, Rd ∨ #IMM → Rd
Performs a logical OR operation on a general register and another
general register or immediate data.
XOR
B/W/L
Rd ⊕ Rs → Rd, Rd ⊕ #IMM → Rd
Performs a logical exclusive OR operation on a general register and
another general register or immediate data.
NOT
B/W/L
¬ Rd → Rd
Takes the one's complement of general register contents.
Note:
*
Size refers to the operand size.
B: Byte
W: Word
L: Longword
Table 2.6
Shift Instructions
Instruction
Size*
Function
SHAL,
SHAR
B/W/L
Rd (shift) → Rd
SHLL,
SHLR
B/W/L
ROTL,
ROTR
B/W/L
ROTXL,
ROTXR
B/W/L
Note:
Performs an arithmetic shift on general register contents.
Rd (shift) → Rd
Performs a logical shift on general register contents.
Rd (rotate) → Rd
Rotates general register contents.
*
Rd (rotate) → Rd
Rotates general register contents through the carry bit.
Size refers to the operand size.
B: Byte
W: Word
L: Longword
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Section 2 CPU
Table 2.7
Bit Manipulation Instructions
Instruction
Size*
Function
BSET
B
1 → (<bit-No.> of <EAd>)
Sets a specified bit in a general register or memory operand to 1. The
bit number is specified by 3-bit immediate data or the lower 3 bits of a
general register.
BCLR
B
0 → (<bit-No.> of <EAd>)
Clears a specified bit in a general register or memory operand to 0. The
bit number is specified by 3-bit immediate data or the lower 3 bits of a
general register.
BNOT
B
¬ (<bit-No.> of <EAd>) → (<bit-No.> of <EAd>)
Inverts a specified bit in a general register or memory operand. The bit
number is specified by 3-bit immediate data or the lower 3 bits of a
general register.
BTST
B
¬ (<bit-No.> of <EAd>) → Z
Tests a specified bit in a general register or memory operand and sets
or clears the Z flag accordingly. The bit number is specified by 3-bit
immediate data or the lower 3 bits of a general register.
BAND
B
C ∧ (<bit-No.> of <EAd>) → C
ANDs the carry flag with a specified bit in a general register or memory
operand and stores the result in the carry flag.
BIAND
B
C ∧ [¬ (<bit-No.> of <EAd>)] → C
ANDs the carry flag with the inverse of a specified bit in a general
register or memory operand and stores the result in the carry flag.
The bit number is specified by 3-bit immediate data.
BOR
B
C ∨ (<bit-No.> of <EAd>) → C
ORs the carry flag with a specified bit in a general register or memory
operand and stores the result in the carry flag.
BIOR
B
C ∨ [¬ (<bit-No.> of <EAd>)] → C
ORs the carry flag with the inverse of a specified bit in a general
register or memory operand and stores the result in the carry flag.
The bit number is specified by 3-bit immediate data.
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Instruction
Size*
Function
BXOR
B
C ⊕ (<bit-No.> of <EAd>) → C
Exclusive-ORs the carry flag with a specified bit in a general register or
memory operand and stores the result in the carry flag.
BIXOR
B
C ⊕ [¬ (<bit-No.> of <EAd>)] → C
Exclusive-ORs the carry flag with the inverse of a specified bit in a
general register or memory operand and stores the result in the carry
flag.
The bit number is specified by 3-bit immediate data.
BLD
B
(<bit-No.> of <EAd>) → C
Transfers a specified bit in a general register or memory operand to
the carry flag.
BILD
B
¬ (<bit-No.> of <EAd>) → C
Transfers the inverse of a specified bit in a general register or memory
operand to the carry flag.
The bit number is specified by 3-bit immediate data.
BST
B
C → (<bit-No.> of <EAd>)
Transfers the carry flag value to a specified bit in a general register or
memory operand.
BIST
B
C → ¬ (<bit-No.> of <EAd>)
Transfers the inverse of the carry flag value to a specified bit in a
general register or memory operand.
The bit number is specified by 3-bit immediate data.
Note:
*
Size refers to the operand size.
B: Byte
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Table 2.8
Branching Instructions
Instruction
Size
Function
Bcc
—
Branches to a specified address if a specified condition is true. The
branching conditions are listed below.
Mnemonic
Description
Condition
BRA (BT)
Always (true)
Always
BRN (BF)
Never (false)
Never
BHI
High
C∨Z=0
BLS
Low or same
C∨Z=1
Bcc (BHS)
Carry clear (high or same)
C=0
BCS (BLO)
Carry set (low)
C=1
BNE
Not equal
Z=0
BEQ
Equal
Z=1
BVC
Overflow clear
V=0
BVS
Overflow set
V=1
BPL
Plus
N=0
BMI
Minus
N=1
BGE
Greater or equal
N⊕V=0
BLT
Less than
N⊕V=1
BGT
Greater than
Z ∨ (N ⊕ V) = 0
BLE
Less or equal
Z ∨ (N ⊕ V) = 1
JMP
—
Branches unconditionally to a specified address
BSR
—
Branches to a subroutine at a specified address
JSR
—
Branches to a subroutine at a specified address
RTS
—
Returns from a subroutine
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Table 2.9
System Control Instructions
Instruction
Size*
Function
TRAPA
—
Starts trap-instruction exception handling
RTE
—
Returns from an exception-handling routine
SLEEP
—
Causes a transition to the power-down state
LDC
B/W
(EAs) → CCR
Moves the source operand contents to the condition code register. The
condition code register size is one byte, but in transfer from memory, data
is read by word access.
STC
B/W
CCR → (EAd)
Transfers the CCR contents to a destination location. The condition code
register size is one byte, but in transfer to memory, data is written by word
access.
ANDC
B
CCR ∧ #IMM → CCR
Logically ANDs the condition code register with immediate data.
ORC
B
XORC
B
CCR ∨ #IMM → CCR
Logically ORs the condition code register with immediate data.
CCR ⊕ #IMM → CCR
Logically exclusive-ORs the condition code register with immediate data.
NOP
—
PC + 2 → PC
Only increments the program counter.
Note:
*
Size refers to the operand size.
B: Byte
W: Word
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Table 2.10 Block Transfer Instruction
Instruction
Size
Function
EEPMOV.B
—
if R4L ≠ 0 then
repeat
@ER5+ → @ER6+, R4L – 1 → R4L
until
R4L = 0
else next;
EEPMOV.W
if R4 ≠ 0 then
repeat
@ER5+ → @ER6+, R4 – 1 → R4
until
R4 = 0
else next;
Transfers a data block according to parameters set in general registers
R4L or R4, ER5, and ER6.
R4L or R4: Size of block (bytes)
ER5:
Starting source address
ER6:
Starting destination address
Execution of the next instruction begins as soon as the transfer is
completed.
2.6.4
Basic Instruction Formats
The H8/300H instructions consist of 2-byte (1-word) units. An instruction consists of an operation
field (OP field), a register field (r field), an effective address extension (EA field), and a condition
field (cc).
Operation Field: Indicates the function of the instruction, the addressing mode, and the operation
to be carried out on the operand. The operation field always includes the first 4 bits of the
instruction. Some instructions have two operation fields.
Register Field: Specifies a general register. Address registers are specified by 3 bits, data registers
by 3 bits or 4 bits. Some instructions have two register fields. Some have no register field.
Effective Address Extension: Eight, 16, or 32 bits specifying immediate data, an absolute
address, or a displacement. A 24-bit address or displacement is treated as 32-bit data in which the
first 8 bits are 0 (H'00).
Condition Field: Specifies the branching condition of Bcc instructions.
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Figure 2.9 shows examples of instruction formats.
Operation field only
op
NOP, RTS, etc.
Operation field and register fields
op
rn
rm
ADD.B Rn, Rm, etc.
Operation field, register fields, and effective address extension
op
rn
rm
MOV.B @(d:16, Rn), Rm
EA (disp)
Operation field, effective address extension, and condition field
op
cc
EA (disp)
BRA d:8
Figure 2.9 Instruction Formats
2.6.5
Notes on Use of Bit Manipulation Instructions
The BSET, BCLR, BNOT, BST, and BIST instructions read a byte of data, modify a bit in the
byte, then write the byte back. Care is required when these instructions are used to access registers
with write-only bits, or to access ports.
The BCLR instruction can be used to clear flags in the on-chip registers. In an interrupt-handling
routine, for example, if it is known that the flag is set to 1, it is not necessary to read the flag ahead
of time.
2.7
Addressing Modes and Effective Address Calculation
2.7.1
Addressing Modes
The H8/300H CPU supports the eight addressing modes listed in table 2.11. Each instruction uses
a subset of these addressing modes. Arithmetic and logic instructions can use the register direct
and immediate modes. Data transfer instructions can use all addressing modes except programcounter relative and memory indirect. Bit manipulation instructions use register direct, register
indirect, or absolute (@aa:8) addressing mode to specify an operand, and register direct (BSET,
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BCLR, BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit
number in the operand.
Table 2.11 Addressing Modes
No.
Addressing Mode
Symbol
1
Register direct
Rn
2
Register indirect
@ERn
3
Register indirect with displacement
@(d:16, ERn)/@d:24, ERn)
4
Register indirect with post-increment
@Ern+
Register indirect with pre-decrement
@–ERn
5
Absolute address
@aa:8/@aa:16/@aa:24
6
Immediate
#xx:8/#xx:16/#xx:32
7
Program-counter relative
@(d:8, PC)/@(d:16, PC)
8
Memory indirect
@@aa:8
1. Register Direct—Rn
The register field of the instruction code specifies an 8-, 16-, or 32-bit register containing the
operand. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7
can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers.
2. Register Indirect—@ERn
The register field of the instruction code specifies an address register (ERn), the lower 24 bits of
which contain the address of the operand.
3. Register Indirect with Displacement—@(d:16, ERn) or @(d:24, ERn)
A 16-bit or 24-bit displacement contained in the instruction code is added to the contents of an
address register (ERn) specified by the register field of the instruction, and the lower 24 bits of the
sum specify the address of a memory operand. A 16-bit displacement is sign-extended when
added.
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4. Register Indirect with Post-Increment or Pre-Decrement—@ERn+ or @–ERn
• Register indirect with post-increment—@ERn+
The register field of the instruction code specifies an address register (ERn) the lower 24 bits
of which contain the address of a memory operand. After the operand is accessed, 1, 2, or 4 is
added to the address register contents (32 bits) and the sum is stored in the address register.
The value added is 1 for byte access, 2 for word access, or 4 for longword access. For word or
longword access, the register value should be even.
• Register indirect with pre-decrement—@–ERn
The value 1, 2, or 4 is subtracted from an address register (ERn) specified by the register field
in the instruction code, and the lower 24 bits of the result become the address of a memory
operand. The result is also stored in the address register. The value subtracted is 1 for byte
access, 2 for word access, or 4 for longword access. For word or longword access, the resulting
register value should be even.
5. Absolute Address—@aa:8, @aa:16, or @aa:24
The instruction code contains the absolute address of a memory operand. The absolute address
may be 8 bits long (@aa:8), 16 bits long (@aa:16), or 24 bits long (@aa:24). For an 8-bit absolute
address, the upper 16 bits are all assumed to be 1 (H'FFFF). For a 16-bit absolute address the
upper 8 bits are a sign extension. A 24-bit absolute address can access the entire address space.
Table 2.12 indicates the accessible address ranges.
Table 2.12 Absolute Address Access Ranges
Absolute
Address
8 bits (@aa:8)
1-Mbyte Modes
16-Mbyte Modes
H'FFF00 to H'FFFFF
(1,048,320 to 1,048,575)
H'FFFF00 to H'FFFFFF
(16,776,960 to 16,777,215)
16 bits (@aa:16) H'00000 to H'07FFF,
H'F8000 to H'FFFFF
(0 to 32,767, 1,015,808 to 1,048,575)
H'000000 to H'007FFF,
H'FF8000 to H'FFFFFF
(0 to 32,767, 16,744,448 to 16,777,215)
24 bits (@aa:24) H'00000 to H'FFFFF
(0 to 1,048,575)
H'000000 to H'FFFFFF
(0 to 16,777,215)
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6. Immediate—#xx:8, #xx:16, or #xx:32
The instruction code contains 8-bit (#xx:8), 16-bit (#xx:16), or 32-bit (#xx:32) immediate data as
an operand.
The instruction codes of the ADDS, SUBS, INC, and DEC instructions contain immediate data
implicitly. The instruction codes of some bit manipulation instructions contain 3-bit immediate
data specifying a bit number. The TRAPA instruction code contains 2-bit immediate data
specifying a vector address.
7. Program-Counter Relative—@(d:8, PC) or @(d:16, PC)
This mode is used in the Bcc and BSR instructions. An 8-bit or 16-bit displacement contained in
the instruction code is sign-extended to 24 bits and added to the 24-bit PC contents to generate a
24-bit branch address. The PC value to which the displacement is added is the address of the first
byte of the next instruction, so the possible branching range is –126 to +128 bytes (–63 to +64
words) or –32766 to +32768 bytes (–16383 to +16384 words) from the branch instruction. The
resulting value should be an even number.
8. Memory Indirect—@@aa:8
This mode can be used by the JMP and JSR instructions. The instruction code contains an 8-bit
absolute address specifying a memory operand. This memory operand contains a branch address.
The memory operand is accessed by longword access. The first byte of the memory operand is
ignored, generating a 24-bit branch address. See figure 2.10. The upper bits of the 8-bit absolute
address are assumed to be 0 (H'0000), so the address range is 0 to 255 (H'000000 to H'0000FF).
Note that the first part of this range is also the exception vector area. For further details see section
5, Interrupt Controller.
Specified by @aa:8
Reserved
Branch address
Figure 2.10 Memory-Indirect Branch Address Specification
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When a word-size or longword-size memory operand is specified, or when a branch address is
specified, if the specified memory address is odd, the least significant bit is regarded as 0. The
accessed data or instruction code therefore begins at the preceding address. See section 2.5.2,
Memory Data Formats.
2.7.2
Effective Address Calculation
Table 2.13 explains how an effective address is calculated in each addressing mode. In the
1-Mbyte operating modes the upper 4 bits of the calculated address are ignored in order to
generate a 20-bit effective address.
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4
3
2
r
r
disp
r
op
r
Register indirect with pre-decrement
@ÐERn
op
Register indirect with post-increment
@ERn+
Register indirect with post-increment
or pre-decrement
op
Register indirect with displacement
@(d:16, ERn)/@(d:24, ERn)
op
Register indirect (@ERn)
rm rn
Register direct (Rn)
1
op
Addressing Mode and
Instruction Format
No.
1, 2, or 4
General register contents
1, 2, or 4
General register contents
1 for a byte operand, 2 for a word
operand, 4 for a longword operand
31
31
disp
General register contents
General register contents
Sign extension
31
31
Effective Address Calculation
0
0
0
0
23
23
23
23
Operand is general
register contents
Effective Address
0
0
0
0
Section 2 CPU
Table 2.13 Effective Address Calculation
7
6
5
No.
abs
abs
abs
IMM
op
disp
Program-counter relative
@(d:8, PC) or @(d:16, PC)
op
Immediate
#xx:8, #xx:16, or #xx:32
op
@aa:24
op
@aa:16
op
Absolute address
@aa:8
Addressing Mode and
Instruction Format
disp
PC contents
Sign
extension
23
Effective Address Calculation
0
16 15
H'FFFF
8 7
23
Operand is immediate data
23
Sign
extension
23
23
Effective Address
0
0
0
0
Section 2 CPU
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abs
abs
Register field
Operation field
Displacement
Immediate data
Absolute address
op
Advanced mode
op
Normal mode
Memory indirect
@@aa:8
Addressing Mode and
Instruction Format
Legend:
r, rm, rn:
op:
disp:
IMM:
abs:
8
No.
31
8 7
abs
0
H'0000
8 7
abs
0
0
15
0
Memory contents
H'0000
Memory contents
23
23
Effective Address Calculation
23
23 16 15
H'00
Effective Address
0
0
Section 2 CPU
Section 2 CPU
2.8
Processing States
2.8.1
Overview
The H8/300H CPU has four processing states: the program execution state, exception-handling
state, power-down state, and reset state. The power-down state includes sleep mode, software
standby mode, and hardware standby mode. Figure 2.11 classifies the processing states. Figure
2.13 indicates the state transitions.
Processing states
Program execution state
The CPU executes program instructions in sequence
Exception-handling state
A transient state in which the CPU executes a hardware sequence
(saving PC and CCR, fetching a vector, etc.) in response to a reset,
interrupt, or other exception
Reset state
The CPU and all on-chip supporting modules are initialized and halted
Power-down state
Sleep mode
The CPU is halted to conserve power
Software standby mode
Hardware standby mode
Figure 2.11 Processing States
2.8.2
Program Execution State
In this state the CPU executes program instructions in normal sequence.
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2.8.3
Exception-Handling State
The exception-handling state is a transient state that occurs when the CPU alters the normal
program flow due to a reset, interrupt, or trap instruction. The CPU fetches a starting address from
the exception vector table and branches to that address. In interrupt and trap exception handling
the CPU references the stack pointer (ER7) and saves the program counter and condition code
register.
Types of Exception Handling and Their Priority: Exception handling is performed for resets,
interrupts, and trap instructions. Table 2.14 indicates the types of exception handling and their
priority. Trap instruction exceptions are accepted at all times in the program execution state.
Table 2.14 Exception Handling Types and Priority
Priority
Type of Exception
Detection Timing
Start of Exception Handling
High
Reset
Synchronized with
clock
Exception handling starts
immediately when RES changes
from low to high
Interrupt
End of instruction
execution or end of
exception handling*
When an interrupt is requested,
exception handling starts at the
end of the current instruction or
current exception-handling
sequence
Trap instruction
When TRAPA instruction Exception handling starts when
is executed
a trap (TRAPA) instruction is
executed
Low
Note:
*
Interrupts are not detected at the end of the ANDC, ORC, XORC, and LDC instructions,
or immediately after reset exception handling.
Figure 2.12 classifies the exception sources. For further details about exception sources, vector
numbers, and vector addresses, see section 4, Exception Handling, and section 5, Interrupt
Controller.
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Section 2 CPU
Reset
External interrupts
Exception
sources
Interrupt
Internal interrupts (from on-chip supporting modules)
Trap instruction
Figure 2.12 Classification of Exception Sources
Program execution state
SLEEP
instruction
with SSBY = 0
End of
exception
handling
Exception
Sleep mode
Interrupt
Exception-handling state
NMI, IRQ 0 , IRQ 1,
or IRQ 2 interrupt
SLEEP instruction
with SSBY = 1
Software standby mode
RES = high
Reset state*1
STBY = high, RES = low
Hardware standby mode*2
Power-down state
Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs
whenever RES goes low.
2. From any state, a transition to hardware standby mode occurs when STBY goes low.
Figure 2.13 State Transitions
2.8.4
Exception-Handling Sequences
Reset Exception Handling: Reset exception handling has the highest priority. The reset state is
entered when the RES signal goes low. Reset exception handling starts after that, when RES
changes from low to high. When reset exception handling starts the CPU fetches a start address
from the exception vector table and starts program execution from that address. All interrupts,
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Section 2 CPU
including NMI, are disabled during the reset exception-handling sequence and immediately after it
ends.
Interrupt Exception Handling and Trap Instruction Exception Handling: When these
exception-handling sequences begin, the CPU references the stack pointer (ER7) and pushes the
program counter and condition code register on the stack. Next, if the UE bit in the system control
register (SYSCR) is set to 1, the CPU sets this set to 1, the CPU sets the I bit in the condition code
register to 1. If the UE bit is cleared to 0, the CPU sets both the I bit and the UI bit in the condition
code register to 1. Then the CPU fetches a start address from the exception vector table and
execution branches to that address.
Figure 2.14 shows the stack after the exception-handling sequence.
SPÐ4
SP (ER7)
SPÐ3
SP+1
SPÐ2
SP+2
SPÐ1
SP+3
SP (ER7)
Stack area
Before exception
handling starts
CCR
PC
SP+4
Pushed on stack
Even
address
After exception
handling ends
Legend:
CCR: Condition code register
SP:
Stack pointer
Notes: 1. PC is the address of the first instruction executed after the return from the
exception-handling routine.
2. Registers must be saved and restored by word access or longword access,
starting at an even address.
Figure 2.14 Stack Structure after Exception Handling
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2.8.5
Reset State
When the RES input goes low all current processing stops and the CPU enters the reset state. The I
bit in the condition code register is set to 1 by a reset. All interrupts are masked in the reset state.
Reset exception handling starts when the RES signal changes from low to high.
The reset state can also be entered by a watchdog timer overflow. For details see section 10,
Watchdog Timer.
2.8.6
Power-Down State
In the power-down state the CPU stops operating to conserve power. There are three modes: sleep
mode, software standby mode, and hardware standby mode.
Sleep Mode: A transition to sleep mode is made if the SLEEP instruction is executed while the
SSBY bit is cleared to 0 in the system control register (SYSCR). CPU operations stop
immediately after execution of the SLEEP instruction, but the contents of CPU registers are
retained.
Software Standby Mode: A transition to software standby mode is made if the SLEEP
instruction is executed while the SSBY bit is set to 1 in SYSCR. The CPU and clock halt and all
on-chip supporting modules stop operating. The on-chip supporting modules are reset, but as long
as a specified voltage is supplied the contents of CPU registers and on-chip RAM are retained.
The I/O ports also remain in their existing states.
Hardware Standby Mode: A transition to hardware standby mode is made when the STBY input
goes low. As in software standby mode, the CPU and clock halt and the on-chip supporting
modules are reset, but as long as a specified voltage is supplied, on-chip RAM contents are
retained.
For further information see section 17, Power-Down State.
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2.9
Basic Operational Timing
2.9.1
Overview
The H8/300H CPU operates according to the system clock (φ). The interval from one rise of the
system clock to the next rise is referred to as a "state." A memory cycle or bus cycle consists of
two or three states. The CPU uses different methods to access on-chip memory, the on-chip
supporting modules, and the external address space. Access to the external address space can be
controlled by the bus controller.
2.9.2
On-Chip Memory Access Timing
On-chip memory is accessed in two states. The data bus is 16 bits wide, permitting both byte and
word access. Figure 2.15 shows the on-chip memory access cycle. Figure 2.16 indicates the pin
states.
Bus cycle
T1 state
T2 state
φ
Internal address bus
Address
Internal read signal
Internal data bus
(read access)
Read data
Internal write signal
Internal data bus
(write access)
Write data
Figure 2.15 On-Chip Memory Access Cycle
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T1
T2
φ
Address bus
AS , RD, WR
Address
High
High impedance
D7 to D0
Figure 2.16 Pin States during On-Chip Memory Access
2.9.3
On-Chip Supporting Module Access Timing
The on-chip supporting modules are accessed in three states. The data bus is 8 or 16 bits wide,
depending on the register being accessed. Figure 2.17 shows the on-chip supporting module access
timing. Figure 2.18 indicates the pin states.
Bus cycle
T1 state
T2 state
T3 state
φ
Internal address bus
Read
access
Address
Internal read signal
Internal data bus
Read data
Internal write signal
Write
access
Internal data bus
Write data
Figure 2.17 Access Cycle for On-Chip Supporting Modules
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T1
T2
T3
φ
Address bus
AS , RD, WR
Address
High
High impedance
D7 to D0
Figure 2.18 Pin States during Access to On-Chip Supporting Modules
2.9.4
Access to External Address Space
The external address space is divided into eight areas (areas 0 to 7). Bus-controller settings
determine whether each area accessed in two or three states. For details see section 6, Bus
Controller.
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Section 3 MCU Operating Modes
Section 3 MCU Operating Modes
3.1
Overview
3.1.1
Operating Mode Selection
The H8/3039 Group has five operating modes (modes 1, 3, 5 to7) that are selected by the mode
pins (MD2 to MD0) as indicated in table 3.1. The input at these pins determines expanded mode or
single-chip mode.
Table 3.1
Operating Mode Selection
Mode Pins
Description
Operating
Mode
MD2
MD1
MD0
Address Space
Initial Bus On-Chip On-Chip
1
Mode*
ROM
RAM
—
0
0
0
—
—
—
—
Mode 1
0
0
1
Expanded mode
8 bits
Disabled
Enabled*
Mode 2
0
1
0
—
—
—
—
Mode 3
0
1
1
Expanded mode
8 bits
Disabled
Enabled*
Mode 4
1
0
0
—
—
—
—
Mode 5
1
0
1
Expanded mode
8 bits
Enabled
Enabled*
1
Mode 6
1
1
0
Single-chip normal mode
—
Enabled
Enabled*
2
Mode 7
1
1
1
Single-chip advanced mode —
Enabled
Enabled*
2
1
1
Notes: 1. If the RAM enable bit (RAME) in the system control register (SYSCR) is cleared to 0,
these addresses become external addresses.
2. In mode 6 and 7, clearing bit RAME in SYSCR to 0 and reading the on-chip RAM
always return H'FF, and write access is ignored. For details, see section 14.3,
Operation.
For the address space size there are three choices: 64 kbytes, 1 Mbyte, or 16 Mbytes.
Modes 1 and 3 are on-chip ROM disable expanded modes capable of accessing external memory
and peripheral devices.
Mode 1 supports a maximum address space of 1 Mbyte.
Mode 3 supports a maximum address space of 16 Mbytes.
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Section 3 MCU Operating Modes
Mode 5 is externally expanded mode that enables access to external memory and peripheral
devices and also enables access to the on-chip ROM. Mode 5 supports a maximum address space
of 1 Mbyte.
Modes 6 and 7 are single-chip modes that operate using the on-chip ROM, RAM, and registers.
All I/O ports are available. Mode 6 is a normal mode with 64-kbyte address space. Mode 7 is an
advanced mode with a maximum address space of 1 Mbyte.
The H8/3039 Group can be used only in modes 1, 3, or 5 to 7. The inputs at the mode pins must
select one of these seven modes. The inputs at the mode pins must not be changed during
operation.
3.1.2
Register Configuration
The H8/3039 Group has a mode control register (MDCR) that indicates the inputs at the mode
pins (MD2 to MD0), and a system control register (SYSCR). Table 3.2 summarizes these registers.
Table 3.2
Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFF1
Mode control register
MDCR
R
Undetermined
System control register
SYSCR
R/W
H'0B
H'FFF2
Note:
*
The lower 16 bits of the address are indicated.
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Section 3 MCU Operating Modes
3.2
Mode Control Register (MDCR)
MDCR is an 8-bit read-only register that indicates the current operating mode of the H8/3039
Group.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
MDS2
MDS1
MDS0
Initial value
1
1
0
0
0
—*
—*
—*
Read/Write
—
—
—
—
—
R
R
R
Reserved bits
Mode select 2 to 0
Bits indicating the current
operating mode
Note: Determined by pins MD2 to MD 0 .
Bits 7 and 6—Reserved: These bits cannot be modified and are always read as 1.
Bits 5 to 3—Reserved: These bits cannot be modified and are always read as 0.
Bits 2 to 0—Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the logic levels at pins
MD2 to MD0 (the current operating mode). MDS2 to MDS0 correspond to MD2 to MD0. MDS1 and
MDS0 are read-only bits. The mode pin (MD2 to MD0) levels are latched when MDCR is read.
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Section 3 MCU Operating Modes
3.3
System Control Register (SYSCR)
SYSCR is an 8-bit register that controls the operation of the H8/3039 Group.
Bit
7
6
5
4
3
2
1
0
STS1
STS0
UE
NMIEG
—
RAME
SSBY
STS2
Initial value
0
0
0
0
1
0
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
RAM enable
Enables or
disables
on-chip RAM
Reserved bit
NMI edge select
Selects the valid edge
of the NMI input
User bit enable
Selects whether to use UI bit in CCR
as a user bit or an interrupt mask bit
Standby timer select 2 to 0
These bits select the waiting time at
recovery from software standby mode
Software standby
Enables transition to software standby mode
Bit 7—Software Standby (SSBY): Enables transition to software standby mode. (For further
information about software standby mode see section 17, Power-Down State.)
When software standby mode is exited by an external interrupt, this bit remains set to 1. To clear
this bit, write 0.
Bit 7
SSBY
Description
0
SLEEP instruction causes transition to sleep mode
1
SLEEP instruction causes transition to software standby mode
(Initial value)
Bits 6 to 4—Standby Timer Select (STS2 to STS0): These bits select the length of time the CPU
and on-chip supporting modules wait for the internal clock oscillator to settle when software
standby mode is exited by an external interrupt. Set these bits so that the waiting time will be at
Rev.3.00 Mar. 26, 2007 Page 60 of 682
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Section 3 MCU Operating Modes
least 7 ms at the system clock rate. For further information about waiting time selection, see
section 17.4.3, Selection of Oscillator Waiting Time after Exit from Software Standby Mode.
Bit 6
STS2
Bit 5
STS1
Bit 4
STS0
Description
0
0
0
Waiting time = 8,192 states
0
0
1
Waiting time = 16,384 states
0
1
0
Waiting time = 32,768 states
0
1
1
Waiting time = 65,536 states
1
0
0
Waiting time = 131,072 states
1
0
1
Waiting time = 1,024 states
1
1
—
Illegal setting
(Initial value)
Bit 3—User Bit Enable (UE): Selects whether to use the UI bit in the condition code register as a
user bit or an interrupt mask bit.
Bit 3
UE
Description
0
UI bit in CCR is used as an interrupt mask bit
1
UI bit in CCR is used as a user bit
(Initial value)
Bit 2—NMI Edge Select (NMIEG): Selects the valid edge of the NMI input.
Bit 2
NMIEG
Description
0
An interrupt is requested at the falling edge of NMI
1
An interrupt is requested at the rising edge of NMI
(Initial value)
Bit 1—Reserved: This bit cannot be modified and is always read as 1.
Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is
initialized by the rising edge of the RES signal. It is not initialized in software standby mode.
Bit 0
RAME
Description
0
On-chip RAM is disabled
1
On-chip RAM is enabled
(Initial value)
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Section 3 MCU Operating Modes
3.4
Operating Mode Descriptions
3.4.1
Mode 1
Ports 1, 2, and 5 function as address pins A19 to A0, permitting access to a maximum 1-Mbyte
address space. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas.
3.4.2
Mode 3
Ports 1, 2, and 5 and part of port A function as address pins A23 to A0, permitting access to a
maximum 16-Mbyte address space. The initial bus mode after a reset is 8 bits, with 8-bit access to
all areas. A23 to A21 are valid when 0 is written in bits 7 to 5 of the bus release control register
(BRCR). (In this mode A20 is always used for address output.)
3.4.3
Mode 5
Ports 1, 2, and 5 can function as address pins A19 to A0, permitting access to a maximum 1-Mbyte
address space, but following a reset they are input ports. To use ports 1, 2, and 5 as an address bus,
the corresponding bits in their data direction registers (P1DDR, P2DDR, and P5DDR) must be set
to 1. The address bus width can be selected freely by setting DDR of ports 1, 2, and 5. The initial
bus mode after a reset is 8 bits, with 8-bit access to all areas.
3.4.4
Mode 6
This mode operates using the on-chip ROM, RAM, and registers. All I/O ports are available.
Mode 6 is a normal mode with 64-kbyte address space.
3.4.5
Mode 7
This mode is an advanced mode with a 1-Mbyte address space which operates using the on-chip
ROM, RAM, and registers. All I/O ports are available.
Note: The H8/3039 Group cannot be used in mode 2 and 4.
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Section 3 MCU Operating Modes
3.5
Pin Functions in Each Operating Mode
The pin functions of ports 1 to 3, port 5 and port A vary depending on the operating mode. Table
3.3 indicates their functions in each operating mode.
Table 3.3
Port
Pin Functions in Each Mode
Mode 1
Mode 2*
1
Mode 3
Mode 4*
1
Mode 5
Mode 6
Mode 7
2
P17 to P10
P17 to P10
2
P27 to P20
P27 to P20
P37 to P30
P37 to P30
P53 to P50
P53 to P50
Port 1
A7 to A0
—
A7 to A0
—
P17 to P10*
Port 2
A15 to A8
—
A15 to A8
—
P27 to P20*
Port 3
D7 to D0
—
D7 to D0
—
D7 to D0
Port 5
Port A
A19 to A16
—
PA7 to PA4 —
A19 to A16
—
P53 to P50*
PA6 to PA4* , A20 —
PA7 to PA4
3
2
PA7 to PA4 PA7 to PA4
Notes: 1. H8/3039 Group cannot be used in these modes.
2. Initial state. These pins become address output pins when the corresponding bits in the
data direction registers (P1DDR, P2DDR, P5DDR) are set to 1.
3. Initial state A20 is always an address output pin. PA6 to PA4 are switched over to A23 to
A21 output by writing 0 in bits 7 to 5 of ADRCR.
3.6
Memory Map in Each Operating Mode
Figure 3.1 shows a memory map of the H8/3039. Figure 3.2 shows a memory map of the H8/3038.
Figure 3.3 shows a memory map of the H8/3037. Figure 3.4 shows a memory map of the H8/3036.
The address space is divided into eight areas.
Modes 1, 3 and 5 are the 8-bit bus mode.
The address locations of the on-chip RAM and on-chip registers differ between the 1-Mbyte
modes (modes 1, 5, and 7) and 16-Mbyte mode (mode 3), and 64-kbyte mode (mode 6). The
address range specifiable by the CPU in the 8- and 16-bit absolute addressing modes (@aa:8 and
@aa:16) also differs.
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Section 3 MCU Operating Modes
H'07FFF
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
Vector area
H'0000FF
H'007FFF
16-bit absolute
addresses (first half)
H'000FF
H'000000
8-bit memory-indirect
branch addresses
Vector area
Mode 3
(16-Mbyte expanded modes with
on-chip ROM disabled)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 1
(1-Mbyte expanded modes with
on-chip ROM disabled)
Area 0
Area 0
H'1FFFFF
H'200000
Area 1
Area 1
Area 2
H'3FFFFF
H'400000
Area 3
Area 2
Area 4
H'5FFFFF
H'600000
Area 5
Area 6
H'7FFFFF
H'800000
Area 7
External
address
space
Area 3
Area 4
H'9FFFFF
H'A00000
H'FFFFF
On-chip I/O
registers
Area 6
H'DFFFFF
H'E00000
Area 7
H'FF8000
H'FFEF0F
H'FFEF10
H'FFFF00
H'FFFF0F
H'FFFF10
H'FFFF1B
H'FFFF1C
On-chip RAM*
External
address
space
On-chip I/O
registers
H'FFFFFF
16-bit absolute addresses
(second half)
H'FFF1B
H'FFF1C
External
address
space
Area 5
H'BFFFFF
H'C00000
8-bit absolute addresses
H'FFF00
H'FFF0F
H'FFF10
On-chip RAM*
16-bit absolute addresses
(second half)
H'FEF0F
H'FEF10
8-bit absolute addresses
H'F8000
Note: * External addresses can be accessed by disabling on-chip RAM.
Figure 3.1 H8/3039 Memory Map in Each Operating Mode (1)
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Section 3 MCU Operating Modes
H'07FFF
H'00FF
On-chip ROM
H'F70F
H'F710
On-chip RAM
F'FF00
F'FF0F
Area 3
H'FF1C
Area 4
H'FFFF
Area 5
On-chip I/O
registers
External
address
space
On-chip I/O
registers
H'FEF10
On-chip RAM
H'FFF00
H'FFF0F
H'FFF1C
On-chip I/O
registers
H'FFFFF
8-bit absolute addresses
H'FFFFF
On-chip RAM*
16-bit absolute addresses
(second half)
H'F8000
16-bit absolute addresses
(second half)
H'FFF1B
H'FFF1C
H'07FFF
Area 7
8-bit absolute addresses
H'FFF00
H'FFF0F
H'FFF10
On-chip ROM
Area 6
H'F8000
H'FEF0F
H'FEF10
H'000FF
H'1FFFF
Area 1
Area 2
Vector area
8-bit absolute addresses
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
Area 0
H'00000
16-bit absolute
addresses (first half)
On-chip ROM
Vector area
Mode 7
(single-chip advanced mode)
8-bit memory-indirect
branch addresses
H'000FF
H'0000
8-bit memory-indirect
branch addresses
Vector area
Mode 6
(single-chip normal mode)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 5
(1-Mbyte expanded mode with
on-chip ROM enabled)
Note: * External addresses can be accessed by disabling on-chip RAM.
Figure 3.1 H8/3039 Memory Map in Each Operating Mode (2)
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Section 3 MCU Operating Modes
H'07FFF
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
H'000000
Vector area
H'0000FF
H'007FFF
16-bit absolute
addresses (first half)
H'000FF
16-bit absolute
addresses (first half)
Vector area
8-bit memory-indirect
branch addresses
H'00000
8-bit memory-indirect
branch addresses
Mode 3
(16-Mbyte expanded modes with
on-chip ROM disabled)
Mode 1
(1-Mbyte expanded modes with
on-chip ROM disabled)
Area 0
Area 0
H'1FFFFF
H'200000
Area 1
Area 1
Area 2
H'3FFFFF
H'400000
Area 3
Area 2
Area 4
H'5FFFFF
H'600000
Area 5
Area 6
H'7FFFFF
H'800000
Area 7
External
address
space
Area 3
Area 4
On-chip I/O
registers
Area 6
H'DFFFFF
H'E00000
Area 7
H'FF8000
H'FFEF10
H'FFF70F
H'FFF710
H'FFFF00
H'FFFF0F
H'FFFF10
H'FFFF1B
H'FFFF1C
Reserved*1
On-chip RAM*2
External
address
space
On-chip I/O
registers
H'FFFFFF
16-bit absolute addresses
(second half)
H'FFFFF
External
address
space
Area 5
H'BFFFFF
H'C00000
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FF70F
H'FF710
H'9FFFFF
H'A00000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.2 H8/3038 Memory Map in Each Operating Mode (1)
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Section 3 MCU Operating Modes
H'07FFF
H'08000
H'0FFFF
On-chip ROM
H'F70F
H'F710
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
H'FF00
H'FF0F
Area 0
Area 1
H'FF1C
Area 2
H'FFFF
Area 3
H'000FF
On-chip ROM
H'07FFF
H'0FFFF
On-chip RAM
Reserved*1
Vector area
16-bit absolute
addresses (first half)
H'00FF
H'00000
8-bit memory-indirect
branch addresses
On-chip ROM
Vector area
8-bit memory-indirect
branch addresses
H'000FF
H'0000
Mode 7
(single-chip advanced mode)
On-chip
I/O registers
8-bit absolute addresses
Vector area
Mode 6
(single-chip normal mode)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 5
(1-Mbyte expanded mode with
on-chip ROM enabled)
Area 4
Area 5
Area 6
Area 7
H'FFFFF
External
address
space
On-chip I/O
registers
H'FFF00
H'FFF0F
H'FFF1C
On-chip I/O
registers
H'FFFFF
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
On-chip RAM
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
H'FF710
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FF70F
H'FF710
16-bit absolute addresses
(second half)
H'F8000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.2 H8/3038 Memory Map in Each Operating Mode (2)
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Section 3 MCU Operating Modes
H'07FFF
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
H'000000
Vector area
H'0000FF
H'007FFF
16-bit absolute
addresses (first half)
H'000FF
16-bit absolute
addresses (first half)
Vector area
8-bit memory-indirect
branch addresses
H'00000
8-bit memory-indirect
branch addresses
Mode 3
(16-Mbyte expanded modes with
on-chip ROM disabled)
Mode 1
(1-Mbyte expanded modes with
on-chip ROM disabled)
Area 0
Area 0
H'1FFFFF
H'200000
Area 1
Area 1
Area 2
H'3FFFFF
H'400000
Area 3
Area 2
Area 4
H'5FFFFF
H'600000
Area 5
Area 6
H'7FFFFF
H'800000
Area 7
External
address
space
Area 3
Area 4
On-chip I/O
registers
Area 6
H'DFFFFF
H'E00000
Area 7
H'FF8000
H'FFEF10
H'FFFB0F
H'FFFB10
H'FFFF00
H'FFFF0F
H'FFFF10
H'FFFF1B
H'FFFF1C
H'FFFFFF
Reserved*1
On-chip RAM*2
External
address
space
On-chip I/O
registers
16-bit absolute addresses
(second half)
H'FFFFF
External
address
space
Area 5
H'BFFFFF
H'C00000
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FFB0F
H'FFB10
H'9FFFFF
H'A00000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.3 H8/3037 Memory Map in Each Operating Mode (1)
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Section 3 MCU Operating Modes
H'07FFF
H'08000
Vector area
H'000FF
On-chip ROM
H'07FFF
16-bit absolute
addresses (first half)
On-chip ROM
H'7FFF
H'FB10
Reserved*1
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
H'00FF
H'00000
8-bit memory-indirect
branch addresses
On-chip ROM
Vector area
8-bit memory-indirect
branch addresses
H'000FF
H'0000
Mode 7
(single-chip advanced mode)
On-chip
RAM
Area 0
Area 1
Area 2
H'FF00
H'FF0F
Area 3
H'FF1C
Area 4
H'FFFF
Area 5
On-chip I/O
registers
8-bit absolute addresses
Vector area
Mode 6
(single-chip normal mode)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 5
(1-Mbyte expanded mode with
on-chip ROM enabled)
Area 6
Area 7
H'FFFFF
External
address
space
On-chip I/O
registers
H'FFF00
H'FFF0F
H'FFF1C
On-chip I/O
registers
H'FFFFF
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
On-chip RAM
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
H'FFB10
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FFB0F
H'FFB10
16-bit absolute addresses
(second half)
H'F8000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.3 H8/3037 Memory Map in Each Operating Mode (2)
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Section 3 MCU Operating Modes
H'07FFF
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
Vector area
H'0000FF
H'007FFF
16-bit absolute
addresses (first half)
H'000FF
H'000000
8-bit memory-indirect
branch addresses
Vector area
Mode 3
(16-Mbyte expanded modes with
on-chip ROM disabled)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 1
(1-Mbyte expanded modes with
on-chip ROM disabled)
Area 0
Area 0
H'1FFFFF
H'200000
Area 1
Area 1
Area 2
H'3FFFFF
H'400000
Area 3
Area 2
Area 4
H'5FFFFF
H'600000
Area 5
Area 6
H'7FFFFF
H'800000
Area 7
External
address
space
Area 3
Area 4
On-chip I/O
registers
Area 6
H'DFFFFF
H'E00000
Area 7
H'FF8000
H'FFEF10
H'FFFD0F
H'FFFD10
H'FFFF00
H'FFFF0F
H'FFFF10
H'FFFF1B
H'FFFF1C
Reserved*1
On-chip RAM*2
External
address
space
On-chip I/O
registers
H'FFFFFF
16-bit absolute addresses
(second half)
H'FFFFF
External
address
space
Area 5
H'BFFFFF
H'C00000
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FFD0F
H'FFD10
H'9FFFFF
H'A00000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.4 H8/3036 Memory Map in Each Operating Mode (1)
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Section 3 MCU Operating Modes
H'03FFF
H'07FFF
H'00FF
On-chip ROM
H'3FFF
Reserved*1
Vector area
H'000FF
On-chip ROM
H'03FFF
H'FD10
On-chip RAM
Area 0
Area 1
F'FF00
F'FF0F
Area 2
Area 3
H'FF1C
Area 4
H'FFFF
On-chip I/O
registers
8-bit absolute addresses
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000 External address
space
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
H'00000
16-bit absolute
addresses (first half)
On-chip ROM
Vector area
Mode 7
(single-chip advanced mode)
8-bit memory-indirect
branch addresses
H'000FF
H'0000
8-bit memory-indirect
branch addresses
Vector area
Mode 6
(single-chip normal mode)
16-bit absolute
addresses (first half)
H'00000
8-bit memory-indirect
branch addresses
Mode 5
(1-Mbyte expanded mode with
on-chip ROM enabled)
Area 5
Area 6
Area 7
H'FFFFF
External
address
space
On-chip I/O
registers
H'FFF00
H'FFF0F
H'FFF1C
On-chip I/O
registers
H'FFFFF
8-bit absolute addresses
H'FFF1B
H'FFF1C
On-chip RAM*2
On-chip RAM
16-bit absolute addresses
(second half)
H'FFF00
H'FFF0F
H'FFF10
H'FFD10
Reserved*1
8-bit absolute addresses
H'F8000
H'FEF10
H'FFD0F
H'FFD10
16-bit absolute addresses
(second half)
H'F8000
Notes: 1. Do not access the reserved area.
2. External addresses can be accessed by disabling on-chip RAM.
Figure 3.4 H8/3036 Memory Map in Each Operating Mode (2)
Rev.3.00 Mar. 26, 2007 Page 71 of 682
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Section 3 MCU Operating Modes
3.7
Restrictions on Use of Mode 6
In mode 6 (single-chip normal mode), on-chip ROM area data is undefined if address H'10000 or
above (64 kbytes or above) is accessed, and therefore instruction code fetch and data read
operations may not always be performed normally.
However, there is no problem with address H'10000 and above if the lower 16-bit address is an
on-chip RAM (H'F710 to H'FF0F) or internal I/O register (H'FF1C to H'FFFF) address.
Table 3.4 shows the restrictions concerning each addressing mode.
Table 3.4
Access Restrictions in Mode 6 (Single-Chip Normal Mode)
Conditions
Addressing Mode
Restricted Item
Address Range
Operation
Restriction
Register direct (Rn)
No problem
Register indirect
(@ERn)
Contents of ERn
H'00010000 or
above, with lower
16 bits in range
H'0000 to H'F710
Read data is
undefined.
Writes are
invalid.
Set upper 16 bits of ERn
to H'0000; or, write
same data as in
H'00000–H'0FFFF to
H'10000–H'1FFFF in
on-chip ROM.
Register indirect with
displacement
(@(d:16,ERn),
@(d:16,ERn))
Value of ERn
contents plus
displacement
Register indirect with
post-increment
(@ERn+)
Value of ERn
contents
incremented (or
decremented) by
1, 2, or 4
Register indirect with
pre-decrement
(@ERn-)
Absolute address
(@aa:8)
No problem
Absolute address
(@aa:16)
Value of @aa
sign-extended to
24 bits
H'010000 or
above, with lower
16 bits in range
H'0000 to H'F710
Read data is
undefined.
Writes are
invalid.
Do not specify H'8000
or above as absolute
address; or, write same
data as in H'00000–
H'0FFFF to H'10000–
H'1FFFF in on-chip
ROM.
Rev.3.00 Mar. 26, 2007 Page 72 of 682
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Section 3 MCU Operating Modes
Conditions
Addressing Mode
Restricted Item
Address Range
Operation
Restriction
Absolute address
(@aa:24)
Value of @aa
H'010000 or
above, with lower
16 bits in range
H'0000 to H'F710
Read data is
undefined.
Writes are
invalid.
Do not access
addresses in range
shown under conditions;
or, write same data as in
H'00000–H'0FFFF to
H'10000–H'1FFFF in
on-chip ROM.
Immediate
No problem
Program-counter
relative
(@(d:8,PC),
@(d:16,PC))
Value of PC plus
displacement
H'010000 or
above, with lower
16 bits in range
H'0000 to H'F710
Does not
operate
normally
since
instruction
code is
undefined.
Do not access
addresses in range
shown under conditions;
or, write same data as in
H'00000–H'0FFFF to
H'10000–H'1FFFF in
on-chip ROM.
Memory indirect
(@@aa:8)
No problem
Rev.3.00 Mar. 26, 2007 Page 73 of 682
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Section 3 MCU Operating Modes
Rev.3.00 Mar. 26, 2007 Page 74 of 682
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Section 4 Exception Handling
Section 4 Exception Handling
4.1
Overview
4.1.1
Exception Handling Types and Priority
As table 4.1 indicates, exception handling may be caused by a reset, trap instruction, or interrupt.
Exception handling is prioritized as shown in table 4.1. If two or more exceptions occur
simultaneously, they are accepted and processed in priority order. Trap instruction exceptions are
accepted at all times in the program execution state.
Table 4.1
Exception Types and Priority
Priority
Exception Type
Start of Exception Handling
High
Reset
Starts immediately after a low-to-high transition at the
RES pin
Interrupt
Interrupt requests are handled when execution of the
current instruction or handling of the current exception
is completed
Low
Trap instruction (TRAPA)
Started by execution of a trap instruction (TRAPA)
4.1.2
Exception Handling Operation
Exceptions originate from various sources. Trap instructions and interrupts are handled as follows.
1. The program counter (PC) and condition code register (CCR) are pushed onto the stack.
2. The CCR interrupt mask bit is set to 1.
3. A vector address corresponding to the exception source is generated, and program execution
starts from the address indicated in the vector address.
For a reset exception, steps 2 and 3 above are carried out.
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Section 4 Exception Handling
4.1.3
Exception Vector Table
The exception sources are classified as shown in figure 4.1. Different vectors are assigned to
different exception sources. Table 4.2 lists the exception sources and their vector addresses.
• Reset
External interrupts: NMI, IRQ0, IRQ1, IRQ4, IRQ5
Exception
sources
• Interrupts
• Trap instruction
Internal interrupts: 25 interrupts from on-chip
supporting modules
Figure 4.1 Exception Sources
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Section 4 Exception Handling
Table 4.2
Exception Vector Table
Vector Address*
1
Exception Source
Vector Number
Normal Mode
Advanced Mode
Reset
0
H'0000 to H'0001
H'0000 to H'0003
Reserved for system use
1
H'0002 to H'0003
H'0004 to H'0007
2
H'0004 to H'0005
H'0008 to H'000B
3
H'0006 to H'0007
H'000C to H'000F
4
H'0008 to H'0009
H'0010 to H'0013
5
H'000A to H'000B
H'0014 to H'0017
6
H'000C to H'000D
H'0018 to H'001B
External interrupt (NMI)
7
H'000E to H'000F
H'001C to H'001F
Trap instruction (4 sources)
8
H'0010 to H'0011
H'0020 to H'0023
9
H'0012 to H'0013
H'0024 to H'0027
10
H'0014 to H'0015
H'0028 to H'002B
11
H'0016 to H'0017
H'002C to H'002F
IRQ0
12
H'0018 to H'0019
H'0030 to H'0033
IRQ1
13
H'001A to H'001B
H'0034 to H'0037
14
H'001C to H'001D
H'0038 to H'003B
15
H'001E to H'001F
H'003C to H'003F
IRQ4
16
H'0020 to H'0021
H'0040 to H'0043
IRQ5
17
H'0022 to H'0023
H'0044 to H'0047
18
H'0024 to H'0025
H'0048 to H'004B
19
H'0026 to H'0027
H'004C to H'004F
20
to
60
H'0028 to H'0029
to
H'0078 to H'0079
H'0050 to H'0053
to
H'00F0 to H'00F3
External interrupt
Reserved for system use
External interrupt
Reserved for system use
Internal interrupts*
2
Notes: 1. Lower 16 bits of the address.
2. For the internal interrupt vectors, see section 5.3.3, Interrupt Vector Table.
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Section 4 Exception Handling
4.2
Reset
4.2.1
Overview
A reset is the highest-priority exception. When the RES pin goes low, all processing halts and the
H8/3039 Group enters the reset state. A reset initializes the internal state of the CPU and the
registers of the on-chip supporting modules. Reset exception handling begins when the RES pin
changes from low to high.
The chip can also be reset by overflow of the watchdog timer. For details see section 10,
Watchdog Timer.
4.2.2
Reset Sequence
The H8/3039 Group enters the reset state when the RES pin goes low.
To ensure that the chip is reset, hold the RES pin low for at least 20 ms at power-up. To reset the
chip during operation, hold the RES pin low for at least 10 system clock (φ) cycles. When using
the flash memory version, hold at "Low" level for a least 1usec. See appendix D.2, Pin States at
Reset, for the states of the pins in the reset state.
When the RES pin goes high after being held low for the necessary time, the H8/3039 Group chip
starts reset exception handling as follows.
• The internal state of the CPU and the registers of the on-chip supporting modules are
initialized, and the I bit is set to 1 in CCR.
• The contents of the reset vector address (H'0000 to H'0003 in advanced mode) are read, and
program execution starts from the address indicated in the vector address.
Figure 4.2 shows the reset sequence in modes 5 and 7.
Rev.3.00 Mar. 26, 2007 Page 78 of 682
REJ09B0353-0300
(1), (3)
(2), (4)
(5)
(6)
(2)
(1)
(4)
Address of reset vector: (1) = H'000000, (3) = H'000002
Start address (contents of reset vector)
Start address
First instruction of program
Internal data bus
(16-bit width)
Internal write
signal
Internal read
signal
Internal
address bus
RES
φ
Vector fetch
(3)
Internal
processing
(6)
(5)
Prefetch of
first program
instruction
Section 4 Exception Handling
Figure 4.2 Reset Sequence (Modes 5 and 7)
Rev.3.00 Mar. 26, 2007 Page 79 of 682
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Section 4 Exception Handling
4.2.3
Interrupts after Reset
If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, PC and CCR
will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests,
including NMI, are disabled immediately after a reset. The first instruction of the program is
always executed immediately after the reset state ends. This instruction should initialize the stack
pointer (example: MOV.L #xx:32, SP).
4.3
Interrupts
Interrupt exception handling can be requested by five external sources (NMI, IRQ0, IRQ1, IRQ4,
IRQ5) and 25 internal sources in the on-chip supporting modules. Figure 4.3 classifies the interrupt
sources and indicates the number of interrupts of each type.
The on-chip supporting modules that can request interrupts are the watchdog timer (WDT), 16-bit
integrated timer unit (ITU), serial communication interface (SCI), and A/D converter. Each
interrupt source has a separate vector address.
NMI is the highest-priority interrupt and is always accepted. Interrupts are controlled by the
interrupt controller. The interrupt controller can assign interrupts other than NMI to two priority
levels, and arbitrate between simultaneous interrupts. Interrupt priorities are assigned in interrupt
priority registers A and B (IPRA and IPRB) in the interrupt controller.
For details on interrupts see section 5, Interrupt Controller.
External interrupts
Interrupts
Internal interrupts
NMI (1)
IRQ0, IRQ1, IRQ4, IRQ5 (4)
WDT* (1)
ITU (15)
SCI (8)
A/D converter (1)
Notes: Numbers in parentheses are the number of interrupt sources.
* When the watchdog timer is used as an interval timer, it generates
an interrupt request at every counter overflow.
Figure 4.3 Interrupt Sources and Number of Interrupts
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Section 4 Exception Handling
4.4
Trap Instruction
Trap instruction exception handling starts when a TRAPA instruction is executed. If the UE bit is
set to 1 in the system control register (SYSCR), the exception handling sequence sets the I bit to 1
in CCR. If the UE bit is 0, the I and UI bits are both set to 1. The TRAPA instruction fetches a
start address from a vector table entry corresponding to a vector number from 0 to 3, which is
specified in the instruction code.
4.5
Stack Status after Exception Handling
Figure 4.4 shows the stack after completion of trap instruction exception handling and interrupt
exception handling.
SP-4
SP-3
SP-2
SP-1
SP (ER7) →
Stack area
SP (ER7) →
SP+1
SP+2
SP+3
SP+4
Before exception handling
CCR
PC E
PC H
PC L
Even address
After exception handling
Save on stack
Legend:
PCE: Bits 23 to 16 of program counter (PC)
PCH: Bits 15 to 8 of program counter (PC)
PCL: Bits 7 to 0 of program counter (PC)
CCR: Condition code register
SP: Stack pointer
Notes: 1. PC indicates the address of the first instruction that will be executed after return.
2. Saving and restoring of registers must be conducted at even addresses in word-size
or longword-size units.
Figure 4.4 Stack after Completion of Exception Handling (Advanced Mode)
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Section 4 Exception Handling
4.6
Notes on Stack Usage
When accessing word data or longword data, the H8/3039 Group regards the lowest address bit as
0. The stack should always be accessed by word access or longword access, and the value of the
stack pointer (SP, ER7) should always be kept even. Use the following instructions to save
registers:
PUSH.W Rn
(or MOV.W Rn, @–SP)
PUSH.L ERn (or MOV.L ERn, @–SP)
Use the following instructions to restore registers:
POP.W Rn
(or MOV.W @SP+, Rn)
POP.L ERn
(or MOV.L @SP+, ERn)
Setting SP to an odd value may lead to a malfunction. Figure 4.5 shows an example of what
happens when the SP value is odd.
SP
CCR
R1L
SP
H'FFEFA
H'FFEFB
PC
PC
H'FFEFC
H'FFEFD
H'FFEFF
SP
TRAPA instruction executed
SP set to H'FFEFF
Legend: CCR:
PC:
R1L:
SP:
MOV. B R1L, @-ER7
Data saved above SP
CCR contents lost
Condition code register
Program counter
General register R1L
Stack pointer
Note: The diagram illustrates modes 1, 3, and 5.
Figure 4.5 Operation when SP Value is Odd
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Section 5 Interrupt Controller
Section 5 Interrupt Controller
5.1
Overview
5.1.1
Features
The interrupt controller has the following features:
• Interrupt priority registers (IPRs) for setting interrupt priorities
Interrupts other than NMI can be assigned to two priority levels on a module-by-module basis
in interrupt priority registers A and B (IPRA and IPRB).
• Three-level masking by the I and UI bits in the CPU condition code register (CCR)
• Independent vector addresses
All interrupts are independently vectored; the interrupt service routine does not have to
identify the interrupt source.
• Five external interrupt pins
NMI has the highest priority and is always accepted; either the rising or falling edge can be
selected. For each of IRQ0, IRQ1, IRQ4, and IRQ5, sensing of the falling edge or level sensing
can be selected independently.
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Section 5 Interrupt Controller
5.1.2
Block Diagram
Figure 5.1 shows a block diagram of the interrupt controller.
CPU
ISCR
IER
IPRA, IPRB
NMI
input
IRQ input
section ISR
IRQ input
OVF
TME
.
.
.
.
.
.
.
ADI
ADIE
Priority
decision logic
Interrupt
request
Vector
number
.
.
.
I
UI
Interrupt controller
UE
SYSCR
Legend:
I:
IER:
IPRA:
IPRB:
ISCR:
ISR:
SYSCR:
UE:
UI:
Interrupt mask bit
IRQ enable register
Interrupt priority register A
Interrupt priority register B
IRQ sense control register
IRQ status register
System control register
User bit enable
User bit/interrupt mask bit
Figure 5.1 Interrupt Controller Block Diagram
Rev.3.00 Mar. 26, 2007 Page 84 of 682
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CCR
Section 5 Interrupt Controller
5.1.3
Pin Configuration
Table 5.1 lists the interrupt pins.
Table 5.1
Interrupt Pins
Name
Abbreviation
I/O
Function
Nonmaskable interrupt
NMI
Input
Nonmaskable interrupt, rising edge or
falling edge selectable
External interrupt
request 5, 4, 1, and 0
IRQ5, IRQ4, and
IRQ1, IRQ0
Input
Maskable interrupts, falling edge or level
sensing selectable
5.1.4
Register Configuration
Table 5.2 lists the registers of the interrupt controller.
Table 5.2
Interrupt Controller Registers
1
Address*
Name
Abbreviation
R/W
Initial Value
H'FFF2
System control register
SYSCR
R/W
H'0B
H'FFF4
IRQ sense control register
ISCR
R/W
H'00
H'FFF5
IRQ enable register
IER
R/W
H'00
2
H'FFF6
IRQ status register
ISR
R/(W)*
H'00
H'FFF8
Interrupt priority register A
IPRA
R/W
H'00
H'FFF9
Interrupt priority register B
IPRB
R/W
H'00
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written, to clear flags.
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Section 5 Interrupt Controller
5.2
Register Descriptions
5.2.1
System Control Register (SYSCR)
SYSCR is an 8-bit readable/writable register that controls software standby mode, selects the
action of the UI bit in CCR, selects the NMI edge, and enables or disables the on-chip RAM.
Only bits 3 and 2 are described here. For the other bits, see section 3.3, System Control Register
(SYSCR).
SYSCR is initialized to H'0B by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit
7
6
5
4
3
2
1
0
SSBY
STS2
STS1
STS0
UE
NMIEG
—
RAME
Initial value
0
0
0
0
1
0
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
RAM enable
Reserved bit
Standby timer
select 2 to 0
Software standby
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NMI edge select
Selects the NMI input edge
User bit enable
Selects whether to use the UI bit in CCR
as a user bit or interrupt mask bit
Section 5 Interrupt Controller
Bit 3—User Bit Enable (UE): Selects whether to use the UI bit in CCR as a user bit or an
interrupt mask bit.
Bit 3
UE
Description
0
UI bit in CCR is used as interrupt mask bit
1
UI bit in CCR is used as user bit
(Initial value)
Bit 2—NMI Edge Select (NMIEG): Selects the NMI input edge.
Bit 2
NMIEG
Description
0
Interrupt is requested at falling edge of NMI input
1
Interrupt is requested at rising edge of NMI input
(Initial value)
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Section 5 Interrupt Controller
5.2.2
Interrupt Priority Registers A and B (IPRA, IPRB)
IPRA and IPRB are 8-bit readable/writable registers that control interrupt priority.
Interrupt Priority Register A (IPRA)
IPRA is an 8-bit readable/writable register in which interrupt priority levels can be set.
Bit
7
6
5
4
3
2
1
0
IPRA7
IPRA6
—
IPRA4
IPRA3
IPRA2
IPRA1
IPRA0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Priority
level A0
Selects the
priority level
of ITU
channel 2
interrupt
requests
Priority level A1
Selects the priority level
of ITU channel 1
interrupt requests
Priority level A2
Selects the priority level of
ITU channel 0 interrupt requests
Priority level A3
Selects the priority level of
WDT interrupt requests
Priority level A4
Selects the priority level of IRQ4 and IRQ5
interrupt requests
Reserved bit
Priority level A6
Selects the priority level of IRQ1 interrupt requests
Priority level A7
Selects the priority level of IRQ 0 interrupt requests
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Section 5 Interrupt Controller
IPRA is initialized to H'00 by a reset and in hardware standby mode.
Bit 7—Priority Level A7 (IPRA7): Selects the priority level of IRQ0 interrupt requests.
Bit7
IPRA7
Description
0
IRQ0 interrupt requests have priority level 0 (low priority)
1
IRQ0 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 6—Priority Level A6 (IPRA6): Selects the priority level of IRQ1 interrupt requests.
Bit6
IPRA6
Description
0
IRQ1 interrupt requests have priority level 0 (low priority)
1
IRQ1 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 5—Reserved bit: This bit can be written and read, but it does not affect interrupt priority.
Bit 4—Priority Level A4 (IPRA4): Selects the priority level of IRQ4 and IRQ5 interrupt requests.
Bit4
IPRA4
Description
0
IRQ4, IRQ5 interrupt requests have priority level 0 (low priority)
1
IRQ4, IRQ5 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 3—Priority Level A3 (IPRA3): Selects the priority level of WTD interrupt requests.
Bit3
IPRA3
Description
0
WDT interrupt requests have priority level 0 (low priority)
1
WDT interrupt requests have priority level 1 (high priority)
(Initial value)
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Section 5 Interrupt Controller
Bit 2—Priority Level A2 (IPRA2): Selects the priority level of ITU channel 0 interrupt requests.
Bit2
IPRA2
Description
0
ITU channel 0 interrupt requests have priority level 0 (low priority)
1
ITU channel 0 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 1—Priority Level A1 (IPRA1): Selects the priority level of ITU channel 1 interrupt requests.
Bit1
IPRA1
Description
0
ITU channel 1 interrupt requests have priority level 0 (low priority)
1
ITU channel 1 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 0—Priority Level A0 (IPRA0): Selects the priority level of ITU channel 2 interrupt requests.
Bit0
IPRA0
Description
0
ITU channel 2 interrupt requests have priority level 0 (low priority)
1
ITU channel 2 interrupt requests have priority level 1 (high priority)
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(Initial value)
Section 5 Interrupt Controller
Interrupt Priority Register B (IPRB)
IPRB is an 8-bit readable/writable register in which interrupt priority levels can be set.
Bit
7
6
5
4
3
2
1
0
IPRB7
IPRB6
—
—
IPRB3
IPRB2
IPRB1
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bit
Priority level B1
Selects the priority level
of A/D converter
interrupt request
Priority level B2
Selects the priority level of SCI
channel 1 interrupt requests
Priority level B3
Selects the priority level of SCI
channel 0 interrupt requests
Reserved bits
Priority level B6
Selects the priority level of ITU channel 4 interrupt requests
Priority level B7
Selects the priority level of ITU channel 3 interrupt requests
IPRB is initialized to H'00 by a reset and in hardware standby mode.
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Section 5 Interrupt Controller
Bit 7—Priority Level B7 (IPRB7): Selects the priority level of ITU channel 3 interrupt requests.
Bit7
IPRB7
Description
0
ITU channel 3 interrupt requests have priority level 0 (low priority)
1
ITU channel 3 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 6—Priority Level B6 (IPRB6): Selects the priority level of ITU channel 4 interrupt requests.
Bit6
IPRB6
Description
0
ITU channel 4 interrupt requests have priority level 0 (low priority)
1
ITU channel 4 interrupt requests have priority level 1 (high priority)
(Initial value)
Bits 5 and 4—Reserved: These bits cannot be modified and are always read as 0.
Bit 3—Priority Level B3 (IPRB3): Selects the priority level of SCI channel 0 interrupt requests.
Bit3
IPRB3
Description
0
SCI channel 0 interrupt requests have priority level 0 (low priority)
1
SCI channel 0 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 2—Priority Level B2 (IPRB2): Selects the priority level of SCI channel 1 interrupt requests.
Bit2
IPRB2
Description
0
SCI channel 1 interrupt requests have priority level 0 (low priority)
1
SCI channel 1 interrupt requests have priority level 1 (high priority)
(Initial value)
Bit 1—Priority Level B1 (IPRB1): Selects the priority level of A/D converter interrupt requests.
Bit1
IPRB1
Description
0
A/D converter interrupt requests have priority level 0 (low priority)
1
A/D converter interrupt requests have priority level 1 (high priority)
Bit 0—Reserved: This bit cannot be modified and is always read as 0.
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(Initial value)
Section 5 Interrupt Controller
5.2.3
IRQ Status Register (ISR)
ISR is an 8-bit readable/writable register that indicates the status of IRQ0, IRQ1, IRQ4, and IRQ5
interrupt requests.
Bit
7
6
5
4
3
2
1
0
—
—
IRQ5F
IRQ4F
—
—
IRQ1F
IRQ0F
Initial value
0
0
0
0
0
0
0
0
Read/Write
—
—
R/(W)*
R/(W)*
—
—
R/(W)*
R/(W)*
Reserved bits
Reserved bits
IRQ5 to IRQ4 flags
These bits indicate IRQ5 and IRQ4
interrupt request status
IRQ1, IRQ0 flags
These bits indicates IRQ1 and IRQ0
interrupt request status
Note: * Only 0 can be written, to clear flags.
ISR is initialized to H'00 by a reset and in hardware standby mode.
Bits 7, 6, 3 and 2—Reserved: These bits cannot be modified and are always read as 0.
Bits 5, 4, 1 and 0—IRQ5, IRQ4, IRQ1 and IRQ0 Flags (IRQ5F, IRQ4F, IRQ1F, and IRQ0F):
These bits indicate the status of IRQ5, IRQ4, IRQ1, and IRQ0 interrupt requests.
Bits 5, 4, 1, and 0
IRQ5F, IRQ4F,
IRQ1F, and IRQ0F
Description
0
[Clearing conditions]
1
(Initial value)
•
0 is written in IRQnF after reading the IRQnF flag when IRQnF = 1.
•
IRQnSC = 0, IRQn input is high, and interrupt exception handling is
carried out.
•
IRQnSC = 1 and IRQn interrupt exception handling is carried out.
[Setting conditions]
•
IRQnSC = 0 and IRQn input is low.
•
IRQnSC = 1 and IRQn input changes from high to low.
Note: n = 5, 4, 1 and 0
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Section 5 Interrupt Controller
5.2.4
IRQ Enable Register (IER)
IER is an 8-bit readable/writable register that enables or disables IRQ0, IRQ1, IRQ4, and IRQ5
interrupt requests.
Bit
7
6
5
4
3
2
1
0
—
—
IRQ5E
IRQ4E
—
—
IRQ1E
IRQ0E
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Reserved bits
IRQ5 to IRQ4 enable
These bits enable or disable
IRQ5 and IRQ4 interrupts
IRQ1 to IRQ0 enable
These bits enable or disable
IRQ1 and IRQ0 interrupts
IER is initialized to H'00 by a reset and in hardware standby mode.
Bits 7, 6, 3, and 2—Reserved: These bits cannot be modified and are always read as 0.
Bits 5, 4, 1, and 0—IRQ5, IRQ4, IRQ1, and IRQ0 Enable (IRQ5E, IRQ4E, IRQ1E, IRQ0E):
These bits enable or disable IRQ5, IRQ4, IRQ1, IRQ0 interrupts.
Bits 5, 4, 1, and 0
IRQ5E, IRQ4E,
IRQ1E, and IRQ0E
Description
0
IRQ5, IRQ4, IRQ1, IRQ0 interrupts are disabled
1
IRQ5, IRQ4, IRQ1, IRQ0 interrupts are enabled
Rev.3.00 Mar. 26, 2007 Page 94 of 682
REJ09B0353-0300
(Initial value)
Section 5 Interrupt Controller
5.2.5
IRQ Sense Control Register (ISCR)
ISCR is an 8-bit readable/writable register that selects level sensing or falling-edge sensing of the
inputs at pins IRQ5, IRQ4, IRQ1, and IRQ0
Bit
7
6
—
—
5
4
IRQ5SC IRQ4SC
3
2
—
—
1
0
IRQ1SC IRQ0SC
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Reserved bits
IRQ5 and IRQ4 sense control
These bits select level sensing or falling-edge
sensing for IRQ5 and IRQ4 interrupts
IRQ1 and IRQ0 sense control
These bits select level sensing or falling-edge
sensing for IRQ1 and IRQ0 interrupts
ISCR is initialized to H'00 by a reset and in hardware standby mode.
Bits 7, 6, 3, and 2—Reserved: These bits are readable/writable and do not affect selection of
level sensing or falling-edge sensing.
Bits 5, 4, 1, and 0—IRQ5, IRQ4, IRQ1,,and IRQ0 Sense Control (IRQ5SC, IRQ4SC, IRQ1SC,
IRQ0SC): These bits selects whether interrupts IRQ5, IRQ4, IRQ1, IRQ0 are requested by level
sensing of pins IRQ5, IRQ4, IRQ1, IRQ0 or by falling-edge sensing.
Bits 5, 4, 1, and 0
IRQ5SC, IRQ4SC,
IRQ1SC, IRQ0SC
Description
0
Interrupts are requested when IRQ5, IRQ4, IRQ1, IRQ0 inputs are low
(Initial value)
1
Interrupts are requested by falling-edge input at IRQ5, IRQ4, IRQ1, IRQ0
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Section 5 Interrupt Controller
5.3
Interrupt Sources
The interrupt sources include external interrupts (NMI, IRQ5, IRQ4, IRQ1 and IRQ0) and 25
internal interrupts.
5.3.1
External Interrupts
There are five external interrupts: NMI, and IRQ5, IRQ4, IRQ1, and IRQ0. Of these, NMI, IRQ0,
IRQ1, can be used to exit software standby mode.
NMI: NMI is the highest-priority interrupt and is always accepted, regardless of the states of the
I and UI bits in CCR. The NMIEG bit in SYSCR selects whether an interrupt is requested by the
rising or falling edge of the input at the NMI pin. NMI interrupt exception handling has vector
number 7.
IRQ5, IRQ4, IRQ1, IRQ0 Interrupts: These interrupts are requested by input signals at pins IRQ5,
IRQ4, IRQ1, IRQ0. The IRQ5, IRQ4, IRQ1, IRQ0 interrupts have the following features.
• ISCR settings can select whether an interrupt is requested by the low level of the input at pins
IRQ5, IRQ4, IRQ1, IRQ0, or by the falling edge.
• IER settings can enable or disable the IRQ5, IRQ4, IRQ1, IRQ0 interrupts.
Interrupt priority levels can be assigned by four bits in IPRA (IPRA7, IPRA6, and IPRA4).
• The status of IRQ5, IRQ4, IRQ1, IRQ0 interrupt requests is indicated in ISR. The ISR flags can
be cleared to 0 by software.
Figure 5.2 shows a block diagram of interrupts IRQ5, IRQ4, IRQ1, IRQ0.
IRQnSC
IRQnE
IRQnF
Edge/level
sense circuit
IRQn input
S
Q
IRQn interrupt
request
R
Clear signal
Note: n = 5, 4, 1 and 0
Figure 5.2 Block Diagram of Interrupts IRQ5, IRQ4, IRQ1, and IRQ0
Rev.3.00 Mar. 26, 2007 Page 96 of 682
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Section 5 Interrupt Controller
Figure 5.3 shows the timing of the setting of the interrupt flags (IRQnF).
φ
IRQn
input pin
IRQnF
Note: n = 5, 4, 1 and 0
Figure 5.3 Timing of Setting of IRQnF
Interrupts IRQ5, IRQ4, IRQ1, IRQ0 have vector numbers 17, 16, 13, 12. These interrupts are
detected regardless of whether the corresponding pin is set for input or output. When using a pin
for external interrupt input, clear its DDR bit to 0 and do not use the pin for SCI input or output.
5.3.2
Internal Interrupts
Twenty-five internal interrupts are requested from the on-chip supporting modules.
• Each on-chip supporting module has status flags for indicating interrupt status, and enable bits
for enabling or disabling interrupts.
• Interrupt priority levels can be assigned in IPRA and IPRB.
5.3.3
Interrupt Vector Table
Table 5.3 lists the interrupt sources, their vector addresses, and their default priority order. In the
default priority order, smaller vector numbers have higher priority. The priority of interrupts other
than NMI can be changed in IPRA and IPRB. The priority order after a reset is the default order
shown in table 5.3.
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Section 5 Interrupt Controller
Table 5.3
Interrupt Sources, Vector Addresses, and Priority
Vector Address*
Interrupt Source
Origin
Vector
Number
NMI
External pins
7
H'000E to H'000F H'001C to H'001F —
IRQ0
12
H'0018 to H'0019
H'0030 to H'0033
IPRA7
IRQ1
13
H'001A to H'001B H'0034 to H0037
IPRA6
14
H'001C to H'001D H'0038 to H'003B —
15
H'001E to H'001F H'003C to H'003F
16
H'0020 to H'0021
H'0040 to H'0043
17
H'0022 to H'0023
H'0044 to H'0047
18
H'0024 to H'0025
H'0048 to H'004B
19
H'0026 to H'0027
H'004C to H'004F
WOVI (interval timer)
Watchdog timer 20
H'0028 to H'0029
H'0050 to H'0053
Reserved
—
21
H'002A to H'002B H'0054 to H'0057
22
H'002C to H'002D H'0058 to H'005B
23
H'002E to H'002F H'005C to H'005F
24
H'0030 to H'0031
H'0060 to H'0063
IMIB0 (compare match/
input capture B0)
25
H'0032 to H'0033
H'0064 to H'0067
OVI0 (overflow 0)
26
H'0034 to H'0035
H'0068 to H'006B
Reserved
IRQ4
—
External pins
IRQ5
Reserved
IMIA0 (compare match/
input capture A0)
—
ITU channel 0
Normal Mode
Advanced Mode
Reserved
—
27
H'0036 to H'0037
H'006C to H'006F
IMIA1 (compare match/
input capture A1)
ITU channel 1
28
H'0038 to H'0039
H'0070 to H'0073
IMIB1 (compare match/
input capture B1)
29
H'003A to H'003B H'0074 to H'0077
OVI1 (overflow 1)
30
H'003C to H'003D H'0078 to H'007B
Reserved
—
31
H'003E to H'003F H'007C to H'007F
IMIA2 (compare match/
input capture A2)
ITU channel 2
32
H'0040 to H'0041
H'0080 to H'0083
IMIB2 (compare match/
input capture B2)
33
H'0042 to H'0043
H'0084 to H'0087
OVI2 (overflow 2)
34
H'0044 to H'0045
H'0088 to H'008B
35
H'0046 to H'0047
H'008C to H'008F
Reserved
—
Rev.3.00 Mar. 26, 2007 Page 98 of 682
REJ09B0353-0300
IPR
IPRA4
IPRA3
IPRA2
IPRA1
IPRA0
Priority
High
Section 5 Interrupt Controller
Vector Address*
Interrupt Source
Origin
Vector
Number
IMIA3 (compare match/
input capture A3)
ITU channel 3
36
H'0048 to H'0049
IMIB3 (compare match/
input capture B3)
37
H'004A to H'004B H'0094 to H'0097
OVI3 (overflow 3)
38
H'004C to H'004D H'0098 to H'009B
Normal Mode
Advanced Mode
IPR
H'0090 to H'0093
IPRB7
Reserved
—
39
H'004E to H'004F H'009C to H'009F
IMIA4 (compare match/
input capture A4)
ITU channel 4
40
H'0050 to H'0051
H'00A0 to H'00A3 IPRB6
IMIB4 (compare match/
input capture B4)
41
H'0052 to H'0053
H'00A4 to H'00A7
OVI4 (overflow 4)
42
H'0054 to H'0055
H'00A8 to H'00AB
43
H'0056 to H'0057
H'00AC to H'00AF —
44
H'0058 to H'0059
H'00B0 to H'00B3
45
H'005A to H'005B H'00B4 to H'00B7
46
H'005C to H'005D H'00B8 to H'00BB
47
H'005E to H'005F H'00BC to H'00BF
48
H'0060 to H'0061
H'00C0 to H'00C3
49
H'0062 to H'0063
H'00C4 to H'00C7
50
H'0064 to H'0065
H'00C8 to H'00CB
51
H'0066 to H'0067
H'00CC to H'00CF
H'00D0 to H'00D3 IPRB3
Reserved
—
ERI0 (receive error 0)
52
H'0068 to H'0069
RXI0 (receive data full 0)
SCI channel 0
53
H'006A to H'006B H'00D4 to H'00D7
TXI0 (transmit data
empty 0)
54
H'006C to H'006D H'00D8 to H'00DB
TEI0 (transmit end 0)
Priority
55
H'006E to H'006F H'00DC to H'00DF
56
H'0070 to H'0071
H'00E0 to H'00E3 IPRB2
RXI1 (receive data full 1)
57
H'0072 to H'0073
H'00E4 to H'00E7
TXI1 (transmit data
empty 1)
58
H'0074 to H'0075
H'00E8 to H'00EB
TEI1 (transmit end 1)
59
H'0076 to H'0077
H'00EC to H'00EF
60
H'0078 to H'0079
H'00F0 to H'00F3 IPRB1 Low
ERI1 (receive error 1)
ADI (A/D end)
Note:
*
SCI channel 1
A/D
Lower 16 bits of the address.
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Section 5 Interrupt Controller
5.4
Interrupt Operation
5.4.1
Interrupt Handling Process
The H8/3039 Group handles interrupts differently depending on the setting of the UE bit. When
UE = 1, interrupts are controlled by the I bit. When UE = 0, interrupts are controlled by the I and
UI bits. Table 5.4 indicates how interrupts are handled for all setting combinations of the UE, I,
and UI bits.
NMI interrupts are always accepted except in the reset and hardware standby states. IRQ interrupts
and interrupts from the on-chip supporting modules have their own enable bits. Interrupt requests
are ignored when the enable bits are cleared to 0.
Table 5.4
UE, I, and UI Bit Settings and Interrupt Handling
SYSCR
CCR
UE
I
UI
Description
1
0
—
All interrupts are accepted. Interrupts with priority level 1 have
higher priority.
1
—
No interrupts are accepted except NMI.
0
—
All interrupts are accepted. Interrupts with priority level 1 have
higher priority.
1
0
NMI and interrupts with priority level 1 are accepted.
1
No interrupts are accepted except NMI.
0
UE = 1
Interrupts IRQ0, IRQ1, IRQ4, and IRQ5 and interrupts from the on-chip supporting modules can all
be masked by the I bit in the CPU's CCR. Interrupts are masked when the I bit is set to 1, and
unmasked when the I bit is cleared to 0. Interrupts with priority level 1 have higher priority. Figure
5.4 is a flowchart showing how interrupts are accepted when UE = 1.
Rev.3.00 Mar. 26, 2007 Page 100 of 682
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Section 5 Interrupt Controller
Program execution state
No
Interrupt requested?
Yes
Yes
NMI?
No
No
Pending
Priority level 1?
Yes
IRQ0?
No
Yes
IRQ1?
IRQ0?
No
Yes
No
IRQ1?
Yes
No
Yes
ADI?
ADI?
Yes
Yes
No
I = 0?
Yes
Save PC and CCR
I ←1
Read vector address
Branch to interrupt
service routine
Figure 5.4 Process Up to Interrupt Acceptance when UE = 1
Rev.3.00 Mar. 26, 2007 Page 101 of 682
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Section 5 Interrupt Controller
• If an interrupt condition occurs and the corresponding interrupt enable bit is set to 1, an
interrupt request is sent to the interrupt controller.
• When the interrupt controller receives one or more interrupt requests, it selects the highestpriority request, following the IPR interrupt priority settings, and holds other requests pending.
If two or more interrupts with the same IPR setting are requested simultaneously, the interrupt
controller follows the priority order shown in table 5.3.
• The interrupt controller checks the I bit. If the I bit is cleared to 0, the selected interrupt request
is accepted. If the I bit is set to 1, only NMI is accepted; other interrupt requests are held
pending.
• When an interrupt request is accepted, interrupt exception handling starts after execution of the
current instruction has been completed.
• In interrupt exception handling, PC and CCR are saved to the stack area. The PC value that is
saved indicates the address of the first instruction that will be executed after the return from the
interrupt service routine.
• Next the I bit is set to 1 in CCR, masking all interrupts except NMI.
• The vector address of the accepted interrupt is generated, and the interrupt service routine
starts executing from the address indicated by the contents of the vector address.
UE = 0
The I and UI bits in the CPU's CCR and the IPR bits enable three-level masking of IRQ0, IRQ1,
IRQ4, and IRQ5 interrupts and interrupts from the on-chip supporting modules.
• Interrupt requests with priority level 0 are masked when the I bit is set to 1, and are unmasked
when the I bit is cleared to 0.
• Interrupt requests with priority level 1 are masked when the I and UI bits are both set to 1, and
are unmasked when either the I bit or the UI bit is cleared to 0.
For example, if the interrupt enable bits of all interrupt requests are set to 1, IPRA is set to
H'10, and IPRB is set to H'00 (giving IRQ4 and IRQ5 interrupt requests priority over other
interrupts), interrupts are masked as follows:
a. If I = 0, all interrupts are unmasked (priority order: NMI > IRQ4 > IRQ5 > IRQ0 …).
b. If I = 1 and UI = 0, only NMI, IRQ4, and IRQ5 are unmasked.
c. If I = 1 and UI = 1, all interrupts are masked except NMI.
Figure 5.5 shows the transitions among the above states.
Rev.3.00 Mar. 26, 2007 Page 102 of 682
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Section 5 Interrupt Controller
I←0
a. All interrupts are
unmasked
I←0
b. Only NMI, IRQ 4 , and
IRQ 5 are unmasked
I ← 1, UI ← 0
Exception handling,
or I ← 1, UI ← 1
UI ← 0
Exception handling,
or UI ← 1
c. All interrupts are
masked except NMI
Figure 5.5 Interrupt Masking State Transitions (Example)
Figure 5.6 is a flowchart showing how interrupts are accepted when UE = 0.
• If an interrupt condition occurs and the corresponding interrupt enable bit is set to 1, an
interrupt request is sent to the interrupt controller.
• When the interrupt controller receives one or more interrupt requests, it selects the highestpriority request, following the IPR interrupt priority settings, and holds other requests pending.
If two or more interrupts with the same IPR setting are requested simultaneously, the interrupt
controller follows the priority order shown in table 5.3.
• The interrupt controller checks the I bit. If the I bit is cleared to 0, the selected interrupt request
is accepted regardless of its IPR setting, and regardless of the UI bit. If the I bit is set to 1 and
the UI bit is cleared to 0, only NMI and interrupts with priority level 1 are accepted; interrupt
requests with priority level 0 are held pending. If the I bit and UI bit are both set to 1, only
NMI is accepted; all other interrupt requests are held pending.
• When an interrupt request is accepted, interrupt exception handling starts after execution of the
current instruction has been completed.
• In interrupt exception handling, PC and CCR are saved to the stack area. The PC value that is
saved indicates the address of the first instruction that will be executed after the return from the
interrupt service routine.
• The I and UI bits are set to 1 in CCR, masking all interrupts except NMI.
• The vector address of the accepted interrupt is generated, and the interrupt service routine
starts executing from the address indicated by the contents of the vector address.
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Section 5 Interrupt Controller
Program execution state
No
Interrupt requested?
Yes
Yes
NMI?
No
No
Pending
Priority level 1?
Yes
IRQ0?
No
IRQ0?
Yes
IRQ1?
No
Yes
No
IRQ1?
Yes
No
Yes
ADI?
ADI?
Yes
Yes
No
I = 0?
No
I = 0?
Yes
Yes
No
UI = 0?
Yes
Save PC and CCR
I ← 1, UI ← 1
Read vector address
Branch to interrupt
service routine
Figure 5.6 Process Up to Interrupt Acceptance when UE = 0
Rev.3.00 Mar. 26, 2007 Page 104 of 682
REJ09B0353-0300
(2)
(1)
(4)
High
(3)
Instruction Internal
prefetch
processing
(8)
(7)
(10)
(9)
(12)
(11)
Vector fetch
(14)
(13)
Prefetch of
interrupt
Internal
service routine
processing instruction
(6), (8)
PC and CCR saved to stack
(9), (11) Vector address
(10), (12) Starting address of interrupt service routine (contents of
vector address)
(13)
Starting address of interrupt service routine; (13) = (10), (12)
(14)
First instruction of interrupt service routine
(6)
(5)
Stack
Note: Mode 5, with program code and stack in on-chip memory area.
Instruction prefetch address (not executed;
return address, same as PC contents)
(2), (4) Instruction code (not executed)
(3)
Instruction prefetch address (not executed)
(5)
SP – 2
(7)
SP – 4
(1)
Internal
data bus
Internal
write signal
Internal
read signal
Address
bus
Interrupt
request
signal
φ
Interrupt level
decision and wait
for end of instruction
5.4.2
Interrupt accepted
Section 5 Interrupt Controller
Interrupt Sequence
Figure 5.7 shows the interrupt sequence in mode 5 when the program code and stack are in an onchip memory area.
Figure 5.7 Interrupt Sequence (Mode 5, Stack in On-Chip Memory)
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Section 5 Interrupt Controller
5.4.3
Interrupt Response Time
Table 5.5 indicates the interrupt response time from the occurrence of an interrupt request until the
first instruction of the interrupt service routine is executed.
Table 5.5
Interrupt Response Time
External Memory
No.
On-Chip
Memory
Item
1
8-Bit Bus
2 States
2*
1
3 States
2*
1
1
Interrupt priority decision
2*
2
Maximum number of states
1 to 23
1 to 27
1 to 31*
4
until end of current instruction
3
Saving PC and CCR to stack
4
8
12*
4
4
Vector fetch
4
8
12*
4
5
Instruction prefetch*
2
4
8
12*
4
6
Internal processing*
3
4
4
4
19 to 41
31 to 57
43 to 73
Total
Notes: 1. 1 state for internal interrupts.
2. Prefetch after the interrupt is accepted and prefetch of the first instruction in the interrupt
service routine.
3. Internal processing after the interrupt is accepted and internal processing after prefetch.
4. The number of states increases if wait states are inserted in external memory access.
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Section 5 Interrupt Controller
5.5
Usage Notes
5.5.1
Contention between Interrupt and Interrupt-Disabling Instruction
When an instruction clears an interrupt enable bit to 0 to disable the interrupt, the interrupt is not
disabled until after execution of the instruction is completed. If an interrupt occurs while a BCLR,
MOV, or other instruction is being executed to clear its interrupt enable bit to 0, at the instant
when execution of the instruction ends the interrupt is still enabled, so its interrupt exception
handling is carried out. If a higher-priority interrupt is also requested, however, interrupt exception
handling for the higher-priority interrupt is carried out, and the lower-priority interrupt is ignored.
This also applies to the clearing of an interrupt flag.
Figure 5.8 shows an example in which an IMIEA bit is cleared to 0 in the ITU's TIER.
TIER write cycle by CPU
IMIA exception handling
φ
Internal
address bus
TIER address
Internal
write signal
IMIEA
IMIA
IMFA interrupt
signal
Figure 5.8 Contention between Interrupt and Interrupt-Disabling Instruction
This type of contention will not occur if the interrupt is masked when the interrupt enable bit or
flag is cleared to 0.
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Section 5 Interrupt Controller
5.5.2
Instructions that Inhibit Interrupts
The LDC, ANDC, ORC, and XORC instructions inhibit interrupts. When an interrupt occurs, after
determining the interrupt priority, the interrupt controller requests a CPU interrupt. If the CPU is
currently executing one of these interrupt-inhibiting instructions, however, when the instruction is
completed the CPU always continues by executing the next instruction.
5.5.3
Interrupts during EEPMOV Instruction Execution
The EEPMOV.B and EEPMOV.W instructions differ in their reaction to interrupt requests.
When the EEPMOV.B instruction is executing a transfer, no interrupts are accepted until the
transfer is completed, not even NMI.
When the EEPMOV.W instruction is executing a transfer, interrupt requests other than NMI are
not accepted until the transfer is completed. If NMI is requested, NMI exception handling starts at
a transfer cycle boundary. The PC value saved on the stack is the address of the next instruction.
Programs should be coded as follows to allow for NMI interrupts during EEPMOV.W execution:
L1: EEPMO V.W
MOV.W R4, R4
BNE L1
5.5.4
Usage Notes
The IRQnF flag specification calls for the flag to be cleared by writing 0 to it after it has been read
while set to 1. However, it is possible for the IRQnF flag to be cleared by mistake simply by
writing 0 to it, irrespective of whether it has been read while set to 1, with the result that interrupt
exception handling is not executed. This will occur when the following conditions are met.
1. Setting Conditions
(1) Multiple external interrupts (IRQa, IRQb) are being used.
(2) Different clearing methods are being used: clearing by writing 0 for the IRQaF flag, and
clearing by hardware for the IRQbF flag.
(3) A bit-manipulation instruction is used on the IRQ status register for clearing the IRQaF flag, or
else ISR is read as a byte unit, the IRQaF flag bit is cleared, and the values read in the other
bits are written as a byte unit.
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Section 5 Interrupt Controller
2. Generation Conditions
(1) A read of the ISR register is executed to clear the IRQaF flag while it is set to 1, then the
IRQbF flag is cleared by the execution of interrupt exception handling.
(2) When the IRQaF flag is cleared, there is contention with IRQb generation (IRQaF flag setting).
(IRQbF was 0 when ISR was read to clear the IRQaF flag, but IRQbF is set to 1 before ISR is
written to.)
If the above setting conditions (1) to (3) and generation conditions (1) and (2) are all fulfilled,
when the ISR write in generation condition (2) is performed the IRQbF flag will be cleared
inadvertently, and interrupt exception handling will not be executed.
However, this inadvertent clearing of the IRQbF flag will not occur if 0 is written to this flag even
once between generation conditions (1) and (2).
IRQaF
1 read 0 written
1 read 0 written
1 read
1 read
IRQbF
1
IRQb
written executed
0
written
(Inadvertent clearing)
Generation condition (1)
Generation condition (2)
Figure 5.9 IRQnF Flag when Interrupt Exception Handling is not Executed
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Section 5 Interrupt Controller
Either of the methods shown below should be used to prevent this problem.
Method 1: When clearing the IRQaF flag, read ISR as a byte unit instead of using a bitmanipulation instruction, and write a byte value that clears the IRQaF flag to 0 and sets the other
bits to 1.
Example: When a = 0
MOV.B @ISR, R0L
MOV.B #HFE, R0L
MOV.B R0L, @ISR
Method 2: Perform dummy processing within the IRQb interrupt exception handling routine to
clear the IRQbF flag.
Example: When b = 1
IRQB
MOV.B #HFD, R0L
MOV.B R0L, @ISR
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Section 6 Bus Controller
Section 6 Bus Controller
6.1
Overview
The H8/3039 Group has an on-chip bus controller that divides the external address space into eight
areas and can assign different bus specifications to each. This enables different types of memory to
be connected easily.
6.1.1
Features
Features of the bus controller are listed below.
• Independent settings for address areas 0 to 7
128-kbyte areas in 1-Mbyte mode.
2-Mbyte areas in 16-Mbyte mode.
Areas can be designated for two-state or three-state access.
• Four wait modes
Programmable wait mode, pin auto-wait mode, and pin wait modes 0 and 1 can be selected.
Zero to three wait states can be inserted automatically.
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Section 6 Bus Controller
6.1.2
Block Diagram
Figure 6.1 shows a block diagram of the bus controller.
ASTCR
WCER
Area
decoder
Bus control
circuit
Internal data bus
Internal
address bus
Internal signals
Access state control signal
Wait request signal
Wait-state
controller
WAIT
WCR
Legend:
ASTCR: Access state control register
WCER: Wait state controller enable register
WCR:
Wait control register
Figure 6.1 Block Diagram of Bus Controller
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Section 6 Bus Controller
6.1.3
Input/Output Pins
Table 6.1 summarizes the bus controller's input/output pins.
Table 6.1
Bus Controller Pins
Name
Abbreviation
I/O
Function
Address strobe
AS
Output
Strobe signal indicating valid address output on
the address bus
Read
RD
Output
Strobe signal indicating reading from the external
address space
Write
WR
Output
Strobe signal indicating writing to the external
address space, with valid data on the data
bus(D7 to D0)
Wait
WAIT
Input
Wait request signal for access to external threestate-access areas
6.1.4
Register Configuration
Table 6.2 summarizes the bus controller's registers.
Table 6.2
Bus Controller Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFED
Access state control register
ASTCR
R/W
H'FF
H'FFEE
Wait control register
WCR
R/W
H'F3
H'FFEF
Wait state controller enable register
WCER
R/W
H'FF
H'FFF3
Address control register
ADRCR
R/W
H'FE
Note:
*
Lower 16 bits of the address.
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Section 6 Bus Controller
6.2
Register Descriptions
6.2.1
Access State Control Register (ASTCR)
ASTCR is an 8-bit readable/writable register that selects whether each area is accessed in two
states or three states.
Bit
7
6
5
4
3
2
1
0
AST7
AST6
AST5
AST4
AST3
AST2
AST1
AST0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits selecting number of states for access to each area
ASTCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Area 7 to 0 Access State Control (AST7 to AST0): These bits select whether the
corresponding area is accessed in two or three states.
Bits 7 to 0
AST7 to AST0
Description
0
Areas 7 to 0 are accessed in two states
1
Areas 7 to 0 are accessed in three states
(Initial value)
ASTCR specifies the number of states in which external areas are accessed. On-chip memory and
registers are accessed in a fixed number of states that does not depend on ASTCR settings.
Therefore, in the single-chip modes (modes 6 and 7), the set value is meaningless.
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Section 6 Bus Controller
6.2.2
Wait Control Register (WCR)
WCR is an 8-bit readable/writable register that selects the wait mode for the wait-state controller
(WSC) and specifies the number of wait states.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
WMS1
WMS0
WC1
WC0
Initial value
1
1
1
1
0
0
1
1
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
Wait count 1/0
These bits select the
number of wait states
inserted
Wait mode select 1/0
These bits select the wait mode
WCR is initialized to H'F3 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 4—Reserved: These bits cannot be modified and are always read as 1.
Bits 3 and 2—Wait Mode Select 1 and 0 (WMS1/0): These bits select the wait mode.
Bit3
WMS1
Bit2
WMS0
Description
0
0
Programmable wait mode
1
No wait states inserted by wait-state controller
0
Pin wait mode 1
1
Pin auto-wait mode
1
(Initial value)
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Section 6 Bus Controller
Bits 1 and 0—Wait Count 1 and 0 (WC1/0): These bits select the number of wait states inserted
in access to external three-state-access areas.
Bit1
WC1
Bit0
WC0
Description
0
0
No wait states inserted by wait-state controller
1
1 state inserted
0
2 states inserted
1
3 states inserted
1
6.2.3
(Initial value)
Wait State Controller Enable Register (WCER)
WCER is an 8-bit readable/writable register that enables or disables wait-state control of external
three-state-access areas by the wait-state controller.
Bit
7
6
5
4
3
2
1
0
WCE7
WCE6
WCE5
WCE4
WCE3
WCE2
WCE1
WCE0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Wait state controller enable 7 to 0
These bits enable or disable wait-state control
WCER is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Wait-State Controller Enable 7 to 0 (WCE7 to WCE0): These bits enable or
disable wait-state control of external three-state-access areas.
Bits 7 to 0
WCE7 to WCE0
Description
0
Wait-state control disabled (pin wait mode 0)
1
Wait-state control enabled
(Initial value)
WCER enables or disables wait-state control of external three-state-access areas. Therefore, in the
single-chip modes (modes 6 and 7), the set value is meaningless.
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Section 6 Bus Controller
6.2.4
Address Control Register (ADRCR)
ADRCR is an 8-bit readable/writable register that enables address output on bus lines A23 to A21.
Bit
Initial value
Modes 1
and 5 to 7 Read/Write
Mode 3
7
6
5
4
3
2
1
0
A23E
A22E
A21E
—
—
—
—
—
1
1
1
1
1
1
1
0
—
—
—
—
—
—
—
R/W
Initial value
1
1
1
1
1
1
1
0
Read/Write
R/W
R/W
R/W
—
—
—
—
R/W
Address 23 to 21 enable
These bits enable PA6 to
PA4 to be used for A23 to
A21 address output
Reserved bits
ADRCR is initialized to H'FE by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7—Address 23 Enable (A23E): Enables PA4 to be used as the A23 address output pin. Writing
0 in this bit enables A23 address output from PA4. In modes other than 3 this bit cannot be
modified and PA4 has its ordinary input/output functions
Bit 7
A23E
Description
0
PA4 is the A23 address output pin
1
PA4 is the PA4/TP4/TIOCA1 input/output pin
(Initial value)
Bit 6—Address 22 Enable (A22E): Enables PA5 to be used as the A22 address output pin. Writing 0
in this bit enables A22 address output from PA5. In modes other than 3 this bit cannot be modified
and PA5 has its ordinary input/output functions.
Bit 6
A22E
Description
0
PA5 is the A22 address output pin
1
PA5 is the PA5/TP5/TIOCB1 input/output pin
(Initial value)
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Section 6 Bus Controller
Bit 5—Address 21 Enable (A21E): Enables PA6 to be used as the A21 address output pin. Writing
0 in this bit enables A21 address output from PA6. In modes other than 3 this bit cannot be modified
and PA6 has its ordinary input/output functions.
Bit 5
A21E
Description
0
PA6 is the A21 address output pin
1
PA6 is the PA6/TP6/TIOCA2 input/output pin
Bits 4 to 0—Reserved
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(Initial value)
Section 6 Bus Controller
6.3
Operation
6.3.1
Area Division
The external address space is divided into areas 0 to 7. Each area has a size of 128 kbytes in the
1-Mbyte mode and 2 Mbytes in the 16-Mbyte mode. Figure 6.2 shows a general view of the
memory map.
H'000000
H'00000
H'1FFFF
H'20000
H'1FFFFF
H'200000
Area 2 (2 Mbytes)
H'5FFFF
H'60000
Area 3 (2 Mbytes)
Area 3 (128 kbytes)
H'7FFFF
H'80000
Area 4 (2 Mbytes)
Area 4 (128 kbytes)
H'9FFFFF
H'A00000
H'9FFFF
H'A0000
Area 5 (2 Mbytes)
Area 5 (128 kbytes)
H'BFFFF
H'C0000
Area 5 (128 kbytes)
H'BFFFFF
H'C00000
H'BFFFF
H'C0000
Area 6 (2 Mbytes)
Area 6 (128 kbytes)
Area 7 (128 kbytes)
H'DFFFFF
H'E00000
Area 6 (128 kbytes)
H'DFFFF
H'E0000
Area 7 (2 Mbytes)
On-chip RAM*1 *2
On-chip RAM*1 *2
External address space*3
H'FFFFF
Area 3 (128 kbytes)
H'7FFFFF
H'800000
Area 4 (128 kbytes)
H'DFFFF
H'E0000
Area 2 (128 kbytes)
H'5FFFFF
H'600000
H'9FFFF
H'A0000
Area 0 (128 kbytes)
H'3FFFF
H'40000
Area 2 (128 kbytes)
H'7FFFF
H'80000
H'1FFFF
H'20000
Area 1 (128 kbytes)
H'3FFFFF
H'400000
H'5FFFF
H'60000
On-chip ROM*1
Area 1 (2 Mbytes)
Area 1 (128 kbytes)
H'3FFFF
H'40000
H'00000
Area 0 (2 Mbytes)
Area 0 (128 kbytes)
*1
On-chip I/O registers
a. 1-Mbyte modes with
on-chip ROM disabled
(mode 1)
Area 7 (128 kbytes)
On-chip RAM*1 *2
External address space*3
External address space*3
*1
H'FFFFFF On-chip I/O registers
H'FFFFF
b. 16-Mbyte modes with
on-chip ROM disabled
(mode 3)
On-chip I/O registers*1
c. 1-Mbyte mode with
on-chip ROM enabled
(mode 5)
Notes: There is no area division in modes 6 and 7.
1. The number of access states to on-chip ROM, on-chip RAM, and on-chip I/O registers is fixed.
2. This area follows area 7 specifications when the RAME bit in SYSCR is 0.
3. This area follows area 7 specifications.
Figure 6.2 Access Area Map (Mode 1, 3, and 5)
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Section 6 Bus Controller
The bus specifications for each area can be selected in ASTCR, WCER, and WCR as shown in
table 6.3.
Table 6.3
ASTCR
Bus Specifications
WCER
WCR
Bus Specifications
ASTn
WCEn
WMS1
WMS0
Bus
Width
Access
States
Wait Mode
0
—
—
—
8
2
Disabled
1
0
—
—
8
3
Pin wait mode 0
1
0
0
8
3
Programmable wait mode
1
8
3
Disabled
0
8
3
Pin wait mode 1
1
8
3
Pin auto-wait mode
1
Note: n = 0 to 7
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Section 6 Bus Controller
6.3.2
Bus Control Signal Timing
8-Bit, Three-State-Access Areas
Figure 6.3 shows the timing of bus control signals for an 8-bit, three-state-access area. Wait states
can be inserted.
Bus cycle
T1
T2
T3
φ
Address bus
External address
AS
RD
Read
access
Valid
D7 to D0
WR
Write
access
D7 to D0
Valid
Figure 6.3 Bus Control Signal Timing for 8-Bit, Three-State-Access Area
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Section 6 Bus Controller
8-Bit, Two-State-Access Areas
Figure 6.4 shows the timing of bus control signals for an 8-bit, two-state-access area. Wait states
cannot be inserted.
Bus cycle
T1
T2
φ
Address bus
External address
AS
RD
Read
access
D7 to D0
Valid
WR
Write
access
D7 to D0
Valid
Figure 6.4 Bus Control Signal Timing for 8-Bit, Two-State-Access Area
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Section 6 Bus Controller
6.3.3
Wait Modes
Four wait modes can be selected for each area as shown in table 6.4.
Table 6.4
Wait Mode Selection
ASTCR
WCER
ASTn Bit
WCEn Bit
WMS1 Bit
WMS0 Bit
WSC Control
Wait Mode
0
—
—
—
Disabled
No wait states
1
0
—
—
Disabled
Pin wait mode 0
1
0
0
Enabled
Programmable wait mode
1
Enabled
No wait states
0
Enabled
Pin wait mode 1
1
Enabled
Pin auto-wait mode
WCR
1
Note: n = 0 to 7
The ASTn and WCEn bits can be set independently for each area. Bits WMS1 and WMS0 apply
to all areas. All areas for which WSC control is enabled operate in the same wait mode.
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Section 6 Bus Controller
Pin Wait Mode 0
The wait state controller is disabled. Wait states can only be inserted by WAIT pin control. During
access to an external three-state-access area, if the WAIT pin is low at the fall of the system clock
(φ) in the T2 state, a wait state (TW) is inserted. If the WAIT pin remains low, wait states continue
to be inserted until the WAIT signal goes high. Figure 6.5 shows the timing.
Inserted by WAIT signal
T2
T1
φ
*
TW
TW
*
*
T3
WAIT pin
Address bus
External address
AS
RD
Read
access
Read data
Data bus
WR
Write
access
Data bus
Write data
Note: * Arrows indicate time of sampling of the WAIT pin.
Figure 6.5 Pin Wait Mode 0
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Section 6 Bus Controller
Pin Wait Mode 1
In all accesses to external three-state-access areas, the number of wait states (TW) selected by bits
WC1 and WC0 are inserted. If the WAIT pin is low at the fall of the system clock (φ) in the last of
these wait states, an additional wait state is inserted. If the WAIT pin remains low, wait states
continue to be inserted until the WAIT signal goes high.
Pin wait mode 1 is useful for inserting four or more wait states, or for inserting different numbers
of wait states for different external devices.
If the wait count is 0, this mode operates in the same way as pin wait mode 0.
Figure 6.6 shows the timing when the wait count is 1 (WC1 = 0, WC0 = 1) and one additional wait
state is inserted by WAIT input.
T1
Inserted by
wait count
Inserted by
WAIT signal
TW
TW
T2
φ
*
T3
*
WAIT pin
Address bus
External address
AS
Read
access
RD
Read data
Data bus
WR
Write
access
Data bus
Write data
Note: * Arrows indicate time of sampling of the WAIT pin.
Figure 6.6 Pin Wait Mode 1
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Section 6 Bus Controller
Pin Auto-Wait Mode
If the WAIT pin is low, the number of wait states (TW) selected by bits WC1 and WC0 are
inserted.
In pin auto-wait mode, if the WAIT pin is low at the fall of the system clock (φ) in the T2 state, the
number of wait states (TW) selected by bits WC1 and WC0 are inserted. No additional wait states
are inserted even if the WAIT pin remains low.
Figure 6.7 shows the timing when the wait count is 1.
T1
φ
T2
T3
T1
T2
*
TW
T3
*
WAIT
Address bus
External address
External address
AS
RD
Read
access
Read data
Read data
Data bus
WR
Write
access
Data bus
Write data
Note: * Arrows indicate time of sampling of the WAIT pin.
Figure 6.7 Pin Auto-Wait Mode
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Write data
Section 6 Bus Controller
Programmable Wait Mode
The number of wait states (TW) selected by bits WC1 and WC0 are inserted in all accesses to
external three-state-access areas. Figure 6.8 shows the timing when the wait count is 1 (WC1 = 0,
WC0 = 1).
T1
T2
TW
T3
φ
Address bus
External address
AS
RD
Read
access
Read data
Data bus
WR
Write
access
Data bus
Write data
Figure 6.8 Programmable Wait Mode
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Section 6 Bus Controller
Example of Wait State Control Settings
A reset initializes ASTCR and WCER to H'FF and WCR to H'F3, selecting programmable wait
mode and three wait states for all areas. Software can select other wait modes for individual areas
by modifying the ASTCR, WCER, and WCR settings. Figure 6.9 shows an example of wait mode
settings.
Area 0
3-state-access area,
programmable wait mode
Area 1
3-state-access area,
programmable wait mode
Area 2
3-state-access area,
pin wait mode 0
Area 3
3-state-access area,
pin wait mode 0
Area 4
2-state-access area,
no wait states inserted
Area 5
2-state-access area,
no wait states inserted
Area 6
2-state-access area,
no wait states inserted
Area 7
2-state-access area,
no wait states inserted
Bit:
ASTCR H'0F:
7
0
6
0
5
0
4
0
3
1
2
1
1
1
0
1
WCER H'33:
0
0
1
1
0
0
1
1
WCR H'F3:
—
—
—
—
0
0
1
1
Note: Wait states cannot be inserted in areas designated for two-state access by ASTCR.
Figure 6.9 Wait Mode Settings (Example)
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Section 6 Bus Controller
6.3.4
Interconnections with Memory (Example)
For each area, the bus controller can select two- or three-state access. In three-state-access areas,
wait states can be inserted in a variety of modes, simplifying the connection of both high-speed
and low-speed devices.
Figure 6.10 shows a memory map for this example.
A 32-kword × 8-bit EPROM is connected to area 2. This device is accessed in three states via an
8-bit bus.
Two 32-kword × 8-bit SRAM devices (SRAM1 and SRAM2) are connected to area 3. These
devices are accessed in two states via an 8-bit bus.
One 32-kword × 8-bit SRAM (SRAM3) is connected to area 7. This device is accessed via an 8-bit
bus, using three-state access with an additional wait state inserted in pin auto-wait mode.
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Section 6 Bus Controller
H'00000
H'1FFFF
H'20000
H'3FFFF
H'40000
H'47FFF
H'48000
On-chip ROM
Area 0
Area 1
EPROM
Not used
Area 2
8-bit, three-state-access area
H'5FFFF
H'60000
SRAM1, 2
Area 3
8-bit, two-state-access area
H'6FFFF
H'70000
Not used
H'7FFFF
Areas 4, 5, 6
H'E0000
SRAM3
H'E7FFF
Not used
On-chip RAM
H'FFFFF
Area 7
8-bit, three-state-access area
(one auto-wait state)
On-chip I/O registers
Note: The bus width and the number of access states of the on-chip memories and I/O registers
are fixed; they cannot be changed by register setting.
Figure 6.10 Memory Map (H8/3039 Mode 5)
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Section 6 Bus Controller
6.4
Usage Notes
6.4.1
Register Write Timing
ASTCR and WCER Write Timing
Data written to ASTCR or WCER takes effect starting from the next bus cycle. Figure 6.11 shows
the timing when an instruction fetched from area 2 changes area 2 from three-state access to twostate access.
T1
T2
T3
T1
T2
T3
T1
T2
φ
ASTCR address
Address
3-state access to area 2
2-state access
to area 2
Figure 6.11 ASTCR Write Timing
6.4.2
Precautions on Setting ASTCR and ABWCR*
Use the H8/3039 Group on-chip program to set ASTCR and ABWCR as shown below, so that the
on-chip ROM access cycle for H8/3039 Group can be emulated using the evaluation chip for
support tools.
Modes 5 and 7
ASTCR0 = 0
ABWCR = H'FC
Note: * The ABWCR (bus width control register; lower 16-bit address: H'FFEC) is not built
onto this LSI. For detailed features of the ABWCR, see the H8/3048 Group,
TM
H8/3048F-ZTAT Hardware Manual.
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Section 6 Bus Controller
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Section 7 I/O Ports
Section 7 I/O Ports
7.1
Overview
The H8/3039 Group has nine input/output ports (ports 1, 2, 3, 5, 6, 8, 9, A, and B) and one input
port (port 7). Table 7.1 summarizes the port functions. The pins in each port are multiplexed as
shown in table 7.1.
Each port has a data direction register (DDR) for selecting input or output, and a data register
(DR) for storing output data. In addition to these registers, ports 2, and 5 have an input pull-up
control register (PCR) for switching input pull-up transistors on and off.
Ports 1 to 3 and ports 5, 6, and 8 can drive one TTL load and a 90-pF capacitive load. Ports 9, A,
and B can drive one TTL load and a 30-pF capacitive load. Ports 1 to 3 and ports 5, 6, 8, 9, A, and
B can drive a Darlington pair. Ports 1, 2, 5, and B can drive LEDs (with 10-mA current sink). Pins
P81, P80, PA7 to PA0, and PB3 to PB0 have Schmitt-trigger input circuits.
For block diagrams of the ports see appendix C, I/O Block Diagrams.
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Section 7 I/O Ports
Table 7.1
Port
Port Functions
Description
Pins
Port 1 • 8-bit I/O port P17 to P10/
A7 to A0
• Can drive
Mode 1
Mode 3
Address output
pins (A7 to A0)
LEDs
Mode 5
Address output
(A7 to A0) and
generic input
Mode 6
Mode 7
Generic input/ output
DDR = 0:
generic input
DDR = 1:
address output
Port 2 • 8-bit I/O port P27 to P20/
• Input pull-up A15 to A8
Address output pins (A15 to
A8)
• Can drive
LEDs
Address output
(A15 to A8) and
generic input
Generic input/ output
DDR = 0:
generic input
DDR = 1:
address output
Port 3 • 8-bit I/O port P37 to P30/
D7 to D0
Data input/output (D7 to D0)
Port 5 • 4-bit I/O port P53 to P50/
• Input pull-up A19 to A16
Address output (A19 to A16)
• Can drive
LEDs
Generic input/ output
Address output
(A19 to A16) and
4-bit generic
input
Generic input/ output
DDR = 0:
generic input
DDR = 1:
address output
Port 6 • 4-bit I/O port P65/WR,
P64/RD,
P63/AS
Port 7 • 8-bit Input
port
Bus control signal output (WR, RD, AS)
Generic input/ output
P60/WAIT
Bus control signal input/output (WAIT) and 1-bit
generic input/output
P77 to P70/
AN7 to AN0
Analog input (AN7 to AN0) to A/D converter, and generic input
Port 8 • 2-bit I/O port P81/ IRQ1
IRQ1 input and 1-bit generic input/output
• P81 and P80
have Schmitt P80/IRQ0
inputs
IRQ0 input and 1-bit generic input/output
Rev.3.00 Mar. 26, 2007 Page 134 of 682
REJ09B0353-0300
IRQ1 and IRQ0 input
and generic input/
output
Section 7 I/O Ports
Port
Description
Port 9 • 6-bit I/O
port
Pins
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
P95/SCK1/IRQ5, Input and output (SCK1, SCK0, RxD1, RxD0, TxD1, TxD0) for serial
P94/SCK0/IRQ4, communication interfaces 1 and 0 (SCI0, 1), IRQ5 and IRQ4 input, and
6-bit generic input/output
P93/RxD1,
P92/RxD0,
P91/TxD1,
P90/TxD0
Port A • 8-bit I/O port PA7/TP7/
TIOCB2/A20
• Schmitt
inputs
Output (TP7) Address
output (A20)
from programmable
timing pattern
controller
(TPC), input
or output
(TIOCB2) for
16-bit
integrated
timer unit
(ITU), and
generic
input/output
TPC output
(TP6 to TP4),
ITU input
and output
(TIOCA2,
TIOCB1,
TIOCA1),
address
output
(A23 to A21),
and generic
input/output
TPC output (TP7), ITU input or output
(TIOCB2), and generic input/output
PA6/TP6/
TIOCA2/A21,
PA5/TP5/
TIOCB1/A22,
PA4/TP4/
TIOCA1/A23
TPC output
(TP6 to TP4),
ITU input
and output
(TIOCA2,
TIOCB1,
TIOCA1), and
generic input/
output
TPC output (TP6 to TP4), ITU input and
output (TIOCA2, TIOCB1, TIOCA1), and
generic input/output
PA3/TP3/
TIOCB0/
TCLKD,
PA2/TP2/
TIOCA0/
TCLKC,
PA1/TP1/
TCLKB,
PA0/TP0/
TCLKA
TPC output (TP3 to TP0), ITU input and output (TCLKD, TCLKC,
TCLKB, TCLKA, TIOCB0, TIOCA0), and generic input/output
Rev.3.00 Mar. 26, 2007 Page 135 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port
Description
Port B • 7-bit I/Oport
• Can drive
LEDs
Pins
PB7/TP15/
ADTRG
PB5/TP13/
TOCXB4,
• PB3 to PB0
have Schmitt PB4/TP12/
TOCXA4
inputs
PB3/TP11/
TIOCB4,
PB2/TP10/
TIOCA4,
PB1/TP9/
TIOCB3,
PB0/TP8/
TIOCA3
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
TPC output (TP15), trigger input (ADTRG) to A/D converter, and generic
input/output.
TPC output (TP13 to TP8), ITU input and output (TOCXB4, TOCXA4,
TIOCB4, TIOCA4, TIOCB3, TIOCA3), and generic input/output
Rev.3.00 Mar. 26, 2007 Page 136 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.2
Port 1
7.2.1
Overview
Port 1 is an 8-bit input/output port with the pin configuration shown in figure 7.1. The pin
functions differ between the expanded modes with on-chip ROM disabled, expanded modes with
on-chip ROM enabled, and single-chip mode. In modes 1, 3 (expanded modes with on-chip ROM
disabled), they are address bus output pins (A7 to A0).
In mode 5 (expanded modes with on-chip ROM enabled), settings in the port 1 data direction
register (P1DDR) can designate pins for address bus output (A7 to A0) or generic input. In modes 6
and 7 (single-chip mode), port 1 is a generic input/output port.
Pins in port 1 can drive one TTL load and a 90-pF capacitive load. They can also drive a
Darlington transistor pair.
Port 1 pins
Port 1
Modes 1 and 3 Mode 5
Modes 6 and 7
P17 /A 7
A 7 (output)
P17 (input)/A 7 (output)
P17 (input/output)
P16 /A 6
A 6 (output)
P16 (input)/A 6 (output)
P16 (input/output)
P15 /A 5
A 5 (output)
P15 (input)/A 5 (output)
P15 (input/output)
P14 /A 4
A 4 (output)
P14 (input)/A 4 (output)
P14 (input/output)
P13 /A 3
A 3 (output)
P13 (input)/A 3 (output)
P13 (input/output)
P12 /A 2
A 2 (output)
P12 (input)/A 2 (output)
P12 (input/output)
P11 /A 1
A 1 (output)
P11 (input)/A 1 (output)
P11 (input/output)
P10 /A 0
A 0 (output)
P10 (input)/A 0 (output)
P10 (input/output)
Figure 7.1 Port 1 Pin Configuration
Rev.3.00 Mar. 26, 2007 Page 137 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.2.2
Register Descriptions
Table 7.2 summarizes the registers of port 1.
Table 7.2
Port 1 Registers
Initial Value
Address*
Name
Abbreviation
R/W
Modes 1, 3
Modes 5 to 7
H'FFC0
Port 1 data direction
register
P1DDR
W
H'FF
H'00
H'FFC2
Port 1 data register
P1DR
R/W
H'00
H'00
Note:
*
Lower 16 bits of the address.
Port 1 Data Direction Register (P1DDR)
P1DDR is an 8-bit write-only register that can select input or output for each pin in port 1.
Bit
7
6
5
4
3
2
1
0
P1 7 DDR P1 6 DDR P1 5 DDR P1 4 DDR P1 3 DDR P1 2 DDR P1 1 DDR P1 0 DDR
Modes Initial value
1, 3
Read/Write
Modes Initial value
5 to 7 Read/Write
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
0
0
0
0
0
0
0
0
W
W
W
W
W
W
W
W
Port 1 data direction 7 to 0
These bits select input or
output for port 1 pins
P1DDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P1DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Rev.3.00 Mar. 26, 2007 Page 138 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port 1 Data Register (P1DR)
P1DR is an 8-bit readable/writable register that stores data for pins P17 to P10.
Bit
7
6
5
4
3
2
1
0
P17
P16
P15
P14
P13
P12
P11
P10
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 1 data 7 to 0
These bits store data for port 1 pins
When a bit in P1DDR is set to 1, if port 1 is read the value of the corresponding P1DR bit is
returned directly, regardless of the actual state of the pin. When a bit in P1DDR is cleared to 0, if
port 1 is read the corresponding pin level is read.
P1DR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Rev.3.00 Mar. 26, 2007 Page 139 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.2.3
Pin Functions in Each Mode
The pin functions of port 1 differ between mode 1, 3 (expanded mode with on-chip ROM
disabled), mode 5 (expanded mode with on-chip ROM enabled), mode 6, and 7 (single-chip
mode). The pin functions in each mode are described as follows.
Modes 1 and 3
Address output can be selected for each pin in port 1. Figure 7.2 shows the pin functions in modes
1 and 3.
A 7 (output)
A 6 (output)
A 5 (output)
Port 1
A 4 (output)
A 3 (output)
A 2 (output)
A 1 (output)
A 0 (output)
Figure 7.2 Pin Functions in Modes 1 and 3 (Port 1)
Mode 5
Address output or generic input can be selected for each pin in port 1. A pin becomes an address
output pin if the corresponding P1DDR bit is set to 1, and a generic input pin if this bit is cleared
to 0. Following a reset, all pins are input pins. To use a pin for address output, its P1DDR bit must
be set to 1. Figure 7.3 shows the pin functions in mode 5.
Rev.3.00 Mar. 26, 2007 Page 140 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port 1
When P1DDR = 1
When P1DDR = 0
A 7 (output)
P17 (input)
A 6 (output)
P16 (input)
A 5 (output)
P15 (input)
A 4 (output)
P14 (input)
A 3 (output)
P13 (input)
A 2 (output)
P12 (input)
A 1 (output)
P11 (input)
A 0 (output)
P10 (input)
Figure 7.3 Pin Functions in Mode 5 (Port 1)
Modes 6 and 7 (Single-Chip Mode)
Input or output can be selected separately for each pin in port 1. A pin becomes an output pin if
the corresponding P1DDR bit is set to 1, and an input pin if this bit is cleared to 0. Figure 7.4
shows the pin functions in modes 6 and 7.
P17 (input/output)
P16 (input/output)
P15 (input/output)
Port 1
P14 (input/output)
P13 (input/output)
P12 (input/output)
P11 (input/output)
P10 (input/output)
Figure 7.4 Pin Functions in Modes 6 and 7 (Port 1)
Rev.3.00 Mar. 26, 2007 Page 141 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.3
Port 2
7.3.1
Overview
Port 2 is an 8-bit input/output port with the pin configuration shown in figure 7.5. Pin functions
differ according to operation mode.
In modes 1 and 3 (expanded mode with on-chip ROM disabled), port 2 consists of address bus
output pins (A15 to A8). In mode 5 (expanded mode with on-chip ROM enabled), settings in the
port 2 data direction register (P2DDR) can designate pins for address bus output (A15 to A8) or
generic input. In modes 6 and 7 (single-chip mode), port 2 is a generic input/output port.
Port 2 has software-programmable built-in pull-up transistors. Pins in port 2 can drive one TTL
load and a 90-pF capacitive load. They can also drive a Darlington transistor pair.
Port 2 pins
Port 2
Modes 1 and 3
Modes 5
Mode 6 and 7
P27 /A 15
A15 (output)
P27 (input)/A15 (output)
P27 (input/output)
P26 /A 14
A14 (output)
P26 (input)/A14 (output)
P26 (input/output)
P25 /A 13
A13 (output)
P25 (input)/A13 (output)
P25 (input/output)
P24 /A 12
A12 (output)
P24 (input)/A12 (output)
P24 (input/output)
P23 /A 11
A11 (output)
P23 (input)/A11 (output)
P23 (input/output)
P22 /A 10
A10 (output)
P22 (input)/A10 (output)
P22 (input/output)
P21 /A 9
A9 (output)
P21 (input)/A9 (output)
P21 (input/output)
P20 /A 8
A8 (output)
P20 (input)/A8 (output)
P20 (input/output)
Figure 7.5 Port 2 Pin Configuration
Rev.3.00 Mar. 26, 2007 Page 142 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.3.2
Register Descriptions
Table 7.3 summarizes the registers of port 2.
Table 7.3
Port 2 Registers
Initial Value
Address*
Name
Abbreviation
R/W
Modes 1 and 3
Modes 5 to 7
H'FFC1
Port 2 data direction
register
P2DDR
W
H'FF
H'00
H'FFC3
Port 2 data register
P2DR
R/W
H'00
H'00
H'FFD8
Port 2 input pull-up
control register
P2PCR
R/W
H'00
H'00
Note:
*
Lower 16 bits of the address.
Port 2 Data Direction Register (P2DDR)
P2DDR is an 8-bit write-only register that can select input or output for each pin in port 2.
Bit
7
6
5
4
3
2
1
0
P2 7 DDR P2 6 DDR P2 5 DDR P2 4 DDR P2 3 DDR P2 2 DDR P2 1 DDR P2 0 DDR
Modes Initial value
1 and 3 Read/Write
Modes Initial value
5 to 7 Read/Write
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
0
0
0
0
0
0
0
0
W
W
W
W
W
W
W
W
Port 2 data direction 7 to 0
These bits select input or
output for port 2 pins
P2DDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P2DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Rev.3.00 Mar. 26, 2007 Page 143 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port 2 Data Register (P2DR)
P2DR is an 8-bit readable/writable register that stores data for pins P27 to P20.
Bit
7
6
5
4
3
2
1
0
P2 7
P2 6
P2 5
P2 4
P2 3
P2 2
P2 1
P2 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 2 data 7 to 0
These bits store data for port 2 pins
When a bit in P2DDR is set to 1, if port 2 is read the value of the corresponding P2DR bit is
returned directly, regardless of the actual state of the pin. When a bit in P2DDR is cleared to 0, if
port 2 is read the corresponding pin level is read.
P2DR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Port 2 Input Pull-Up Control Register (P2PCR)
P2PCR is an 8-bit readable/writable register that controls the MOS input pull-up transistors in port
2.
Bit
7
6
5
4
3
2
1
0
P2 7 PCR P2 6 PCR P2 5 PCR P2 4 PCR P2 3 PCR P2 2 PCR P2 1 PCR P2 0 PCR
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 2 input pull-up control 7 to 0
These bits control input pull-up
transistors built into port 2
When a P2DDR bit is cleared to 0 (selecting generic input) in modes 7 to 5, if the corresponding
bit from P27PCR to P20PCR is set to 1, the input pull-up transistor is turned on.
P2PCR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Rev.3.00 Mar. 26, 2007 Page 144 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.3.3
Pin Functions in Each Mode
The pin functions of port 2 differ between mode 1, 3 (expanded mode with on-chip ROM
disabled), mode 5 (expanded mode with on-chip ROM enabled), mode 6, and 7 (single-chip
mode). The pin functions in each mode are described followings.
Modes 1 and 3
Address output can be selected for each pin in port 2. Figure 7.6 shows the pin functions in modes
1 and 3.
A 15 (output)
A 14 (output)
A 13 (output)
Port 2
A 12 (output)
A 11 (output)
A 10 (output)
A 9 (output)
A 8 (output)
Figure 7.6 Pin Functions in Modes 1 and 3 (Port 2)
Mode 5
Address output or generic input can be selected for each pin in port 2. A pin becomes an address
output pin if the corresponding P2DDR bit is set to 1, and a generic input pin if this bit is cleared
to 0. Following a reset, all pins are input pins. To use a pin for address output, its P2DDR bit must
be set to 1. Figure 7.7 shows the pin functions in modes 5.
Rev.3.00 Mar. 26, 2007 Page 145 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port 2
When P2DDR = 1
When P2DDR = 0
A 15 (output)
P27 (input)
A 14 (output)
P26 (input)
A 13 (output)
P25 (input)
A 12 (output)
P24 (input)
A 11 (output)
P23 (input)
A 10 (output)
P22 (input)
A 9 (output)
P21 (input)
A 8 (output)
P20 (input)
Figure 7.7 Pin Functions in Modes 1 and 3 (Port 2)
Modes 6 and 7
Input or output can be selected separately for each pin in port 2. A pin becomes an output pin if
the corresponding P2DDR bit is set to 1, and an input pin if this bit is cleared to 0. Figure 7.8
shows the pin functions in modes 6 and 7.
P27 (input/output)
P26 (input/output)
P25 (input/output)
P24 (input/output)
Port 2
P23 (input/output)
P22 (input/output)
P21 (input/output)
P20 (input/output)
Figure 7.8 Pin Functions in Modes 6 and 7 (Port 2)
Rev.3.00 Mar. 26, 2007 Page 146 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.3.4
Input Pull-Up Transistors
Port 2 has built-in MOS input pull-up transistors that can be controlled by software. These input
pull-up transistors can be turned on and off individually.
When a P2PCR bit is set to 1 and the corresponding P2DDR bit is cleared to 0, the input pull-up
transistor is turned on.
The input pull-up transistors are turned off by a reset and in hardware standby mode. In software
standby mode they retain their previous state.
Table 7.4 summarizes the states of the input pull-up transistors in each mode.
Table 7.4
Input Pull-Up Transistor States (Port 2)
Mode
Reset
Hardware Standby
Mode
Software Standby
Mode
Other Modes
1
3
Off
Off
Off
Off
5
6
7
Off
Off
On/Off
On/Off
Legend:
Off:
The input pull-up transistor is always off.
On/Off: The input pull-up transistor is on if P2PCR = 1 and P2DDR = 0. Otherwise, it is off.
Rev.3.00 Mar. 26, 2007 Page 147 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.4
Port 3
7.4.1
Overview
Port 3 is an 8-bit input/output port with the pin configuration shown in figure 7.9. Port 3 is a data
bus in modes 1, 3 and 5 (expanded modes) and a generic input/output port in mode 6 and 7
(single-chip mode).
Pins in port 3 can drive one TTL load and a 90-pF capacitive load. They can also drive a
Darlington transistor pair.
Port 3
Port 3 pins
Modes 1, 3 and 5
Modes 6 and 7
P37 /D7
D7 (input/output)
P37 (input/output)
P36 /D6
D6 (input/output)
P36 (input/output)
P35 /D5
D5 (input/output)
P35 (input/output)
P34 /D4
D4 (input/output)
P34 (input/output)
P33 /D3
D3 (input/output)
P33 (input/output)
P32 /D2
D2 (input/output)
P32 (input/output)
P31 /D1
D1 (input/output)
P31 (input/output)
P30 /D0
D0 (input/output)
P30 (input/output)
Figure 7.9 Port 3 Pin Configuration
7.4.2
Register Descriptions
Table 7.5 summarizes the registers of port 3.
Table 7.5
Port 3 Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFC4
Port 3 data direction register
P3DDR
W
H'00
Port 3 data register
P3DR
R/W
H'00
H'FFC6
Note:
*
Lower 16 bits of the address.
Rev.3.00 Mar. 26, 2007 Page 148 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port 3 Data Direction Register (P3DDR)
P3DDR is an 8-bit write-only register that can select input or output for each pin in port 3.
Bit
7
6
5
4
3
2
1
0
P3 7 DDR P3 6 DDR P3 5 DDR P3 4 DDR P3 3 DDR P3 2 DDR P3 1 DDR P3 0 DDR
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port 3 data direction 7 to 0
These bits select input or output for port 3 pins
Modes 1, 3, and 5: Port 3 functions as a data bus. P3DDR is ignored.
Modes 6 and 7: Port 3 functions as an input/output port. A pin in port 3 becomes an output pin if
the corresponding P3DDR bit is set to 1, and an input pin if this bit is cleared to 0.
P3DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P3DDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P3DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Port 3 Data Register (P3DR)
P3DR is an 8-bit readable/writable register that stores data for pins P37 to P30.
Bit
7
6
5
4
3
2
1
0
P3 7
P3 6
P3 5
P3 4
P3 3
P3 2
P3 1
P3 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 3 data 7 to 0
These bits store data for port 3 pins
When a bit in P3DDR is set to 1, if port 3 is read the value of the corresponding P3DR bit is
returned directly, regardless of the actual state of the pin. When a bit in P3DDR is cleared to 0, if
port 3 is read the corresponding pin level is read.
P3DR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Rev.3.00 Mar. 26, 2007 Page 149 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.4.3
Pin Functions in Each Mode
The pin functions of port 3 differ between modes 1, 3 and 5 and modes 6 and 7. The pin functions
in each mode are described below.
Modes 1, 3 and 5
All pins of port 3 automatically become data input/output pins. Figure 7.10 shows the pin
functions in modes 1, 3 and 5.
D7 (input/output)
D6 (input/output)
D5 (input/output)
Port 3
D4 (input/output)
D3 (input/output)
D2 (input/output)
D1 (input/output)
D0 (input/output)
Figure 7.10 Pin Functions in Modes 1, 3 and 5 (Port 3)
Rev.3.00 Mar. 26, 2007 Page 150 of 682
REJ09B0353-0300
Section 7 I/O Ports
Modes 6 and 7
Input or output can be selected separately for each pin in port 3. A pin becomes an output pin if
the corresponding P3DDR bit is set to 1, and an input pin if this bit is cleared to 0. Figure 7.11
shows the pin functions in modes 6 and 7.
P3 7 (input/output)
P3 6 (input/output)
P3 5 (input/output)
Port 3
P3 4 (input/output)
P3 3 (input/output)
P3 2 (input/output)
P3 1 (input/output)
P3 0 (input/output)
Figure 7.11 Pin Functions in Modes 6 and 7 (Port 3)
Rev.3.00 Mar. 26, 2007 Page 151 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.5
Port 5
7.5.1
Overview
Port 5 is a 4-bit input/output port with the pin configuration shown in figure 7.12. The pin
functions differ depending on the operating mode.
In modes 1, 3 (expanded modes with on-chip ROM disabled), port 5 consists of address output
pins (A19 to A16). In modes 5 (expanded modes with on-chip ROM enabled), settings in the port
5 data direction register (P5DDR) designate pins for address bus output (A19 to A16) or generic
input. In mode 6 and 7 (single-chip mode), port 5 is a generic input/output port.
Port 5 has software-programmable built-in pull-up transistors. Port 5 can drive one TTL load and a
90-pF capacitive load. They can also drive an LED or a Darlington transistor pair.
Port 5
Port 5
pins
Modes 1, 3
Mode 5
P53 /A 19
A19 (output)
P5 3 (input)/A19 (output)
P5 3 (input/output)
P52 /A 18
A18 (output)
P5 2 (input)/A18 (output)
P5 2 (input/output)
P51 /A 17
A17 (output)
P5 1 (input)/A17 (output)
P5 1 (input/output)
P50 /A 16
A16 (output)
P5 0 (input)/A16 (output)
P5 0 (input/output)
Figure 7.12 Port 5 Pin Configuration
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Modes 6 and 7
Section 7 I/O Ports
7.5.2
Register Descriptions
Table 7.6 summarizes the registers of port 5.
Table 7.6
Port 5 Registers
Initial Value
Address*
Name
Abbreviation
R/W
Modes 1 and 3
Modes 5 to 7
H'FFC8
Port 5 data direction
register
P5DDR
W
H'FF
H'F0
H'FFCA
Port 5 data register
P5DR
R/W
H'F0
H'F0
H'FFDB
Port 5 input pull-up
control register
P5PCR
R/W
H'F0
H'F0
Note:
*
Lower 16 bits of the address.
Port 5 Data Direction Register (P5DDR)
P5DDR is an 8-bit write-only register that can select input or output for each pin in port 5.
Bit
Modes Initial value
1 and 3 Read/Write
Modes Initial value
5 to 7 Read/Write
7
6
5
4
—
—
—
—
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
1
1
1
1
0
0
0
0
—
—
—
—
W
W
W
W
Reserved bits
3
2
1
0
P5 3 DDR P5 2 DDR P5 1 DDR P5 0 DDR
Port 5 data direction 3 to 0
These bits select input or
output for port 5 pins
P5DDR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P5DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
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Section 7 I/O Ports
Port 5 Data Register (P5DR)
P5DR is an 8-bit readable/writable register that stores data for pins P53 to P50.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
P5 3
P5 2
P5 1
P5 0
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
Port 5 data 3 to 0
These bits store data
for port 5 pins
When a bit in P5DDR is set to 1, if port 5 is read the value of the corresponding P5DR bit is
returned directly, regardless of the actual state of the pin. When a bit in P5DDR is cleared to 0, if
port 5 is read the corresponding pin level is read.
Bits P57 to P54 are reserved. They cannot be modified and are always read as 1.
P5DR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Port 5 Input Pull-Up Control Register (P5PCR)
P5PCR is an 8-bit readable/writable register that controls the MOS input pull-up transistors in port
5.
Bit
7
6
5
4
—
—
—
—
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
3
2
1
0
P5 3 PCR P5 2 PCR P5 1 PCR P5 0 PCR
Port 5 input pull-up control 3 to 0
These bits control input pull-up
transistors built into port 5
When a P5DDR bit is cleared to 0 (selecting generic input) in modes 5 to 7, if the corresponding
bit from P53PCR to P50PCR is set to 1, the input pull-up transistor is turned on.
P5PCR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting.
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Section 7 I/O Ports
7.5.3
Pin Functions in Each Mode
The pin functions differ between mode 1, 3 (expanded modes with on-chip ROM disabled), mode
5 (expanded modes with on-chip ROM enabled), mode 6, and 7 (single-chip mode). The pin
functions in each mode are described below.
Modes 1 and 3
Address output can be selected for each pin in port 5. Figure 7.13 shows the pin functions in
modes 1 and 3.
A 19 (output)
Port 5
A 18 (output)
A 17 (output)
A 16 (output)
Figure 7.13 Pin Functions in Modes 1 and 3 (Port 5)
Mode 5
Address output or generic input can be selected for each pin in port 5. A pin becomes an address
output pin if the corresponding P5DDR bit is set to 1, and a generic input pin if this bit is cleared
to 0. Following a reset, all pins are input pins. To use a pin for address output, its P5DDR must be
set to 1. Figure 7.14 shows the pin functions in mode 5.
Port 5
When P5DDR = 1
When P5DDR = 0
A 19 (output)
P5 3 (input)
A 18 (output)
P5 2 (input)
A 17 (output)
P5 1 (input)
A 16 (output)
P5 0 (input)
Figure 7.14 Pin Functions in Mode 5 (Port 5)
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Section 7 I/O Ports
Modes 6 and 7
Input or output can be selected separately for each pin in port 5. A pin becomes an output pin if
the corresponding P5DDR bit is set to 1, and an input pin if this bit is cleared to 0. Figure 7.15
shows the pin functions in modes 6 and 7.
P5 3 (input/output)
Port 5
P5 2 (input/output)
P5 1 (input/output)
P5 0 (input/output)
Figure 7.15 Pin Functions in Mode 6 and 7 (Port 5)
7.5.4
Input Pull-Up Transistors
Port 5 has built-in MOS input pull-up transistors that can be controlled by software. These input
pull-up transistors can be turned on and off individually.
When a P5PCR bit is set to 1 and the corresponding P5DDR bit is cleared to 0, the input pull-up
transistor is turned on.
The input pull-up transistors are turned off by a reset and in hardware standby mode. In software
standby mode they retain their previous state.
Table 7.7 summarizes the states of the input pull-up transistors in each mode.
Table 7.7
Input Pull-Up Transistor States (Port 5)
Mode
Reset
Hardware Standby Mode
Software Standby Mode
Other Modes
1
3
Off
Off
Off
Off
5
6
7
Off
Off
On/Off
On/Off
Legend:
Off:
The input pull-up transistor is always off.
On/Off: The input pull-up transistor is on if P5PCR = 1 and P5DDR = 0. Otherwise, it is off.
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Section 7 I/O Ports
7.6
Port 6
7.6.1
Overview
Port 6 is a 4-bit input/output port that is also used for input and output of bus control signals (WR,
RD, AS, and WAIT).
Figure 7.16 shows the pin configuration of port 6. In modes 1, 3 and 5, the pin functions are WR,
RD, AS, and P60/WAIT. In modes 6 and 7, port 6 is a generic input/output port.
Pins in port 6 can drive one TTL load and a 90-pF capacitive load. They can also drive a
Darlington transistor pair.
Port 6
Port 6 pins
Modes 1, 3 and 5
Modes 6 and 7
P6 5 / WR
WR (output)
P6 5 (input/output)
P6 4 / RD
RD (output)
P6 4 (input/output)
P6 3 / AS
AS (output)
P6 3 (input/output)
P6 0 / WAIT
P60 (input/output)/WAIT (input)
P6 0 (input/output)
Figure 7.16 Port 6 Pin Configuration
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Section 7 I/O Ports
7.6.2
Register Descriptions
Table 7.8 summarizes the registers of port 6.
Table 7.8
Port 6 Registers
Initial Value
Address*
Name
Abbreviation
R/W
Modes 1, 3, and 5
Modes 6 and 7
H'FFC9
Port 6 data direction
register
P6DDR
W
H'F8
H'80
H'FFCB
Port 6 data register
P6DR
R/W
H'80
H'80
Note:
*
Lower 16 bits of the address.
Port 6 Data Direction Register (P6DDR)
P6DDR is an 8-bit write-only register that can select input or output for each pin in port 6.
Bit
7
6
2
1
0
P6 5 DDR P6 4 DDR P6 3 DDR
5
4
3
—
—
—
—
P6 0 DDR
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
W
W
W
W
W
W
W
Reserved bits
Port 6 data direction 5 to 3, 0
These bits select input or output for port 6 pins
Bits 7, 6, 2, and 1 are reserved.
P6DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P6DDR is initialized to H'80 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P6DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
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Section 7 I/O Ports
Port 6 Data Register (P6DR)
P6DR is an 8-bit readable/writable register that stores data for pins P65 to P63 and P60.
Bit
7
6
5
4
3
2
1
0
—
—
P6 5
P6 4
P6 3
—
—
P6 0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Port 6 data 5 to 3, 0
These bits store data for port 6 pins
When a bit in P6DDR is set to 1, if port 6 is read the value of the corresponding P6DR bit is
returned directly. When a bit in P6DDR is cleared to 0, if port 6 is read the corresponding pin level
is read. Bits 7, 6, 2, and 1 are reserved. Bit 7 cannot be modified and always reads 1. Bits 6, 2, and
1 can be written and read, but cannot be used as ports. If bit 6, 2, or 1 in P6DDR is read while its
value is 1, the value of the corresponding bit in P6DR will be read. If bit 6, 2, or 1 in P6DDR is
read while its value is 0, it will always read 1.
P6DR is initialized to H'80 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
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Section 7 I/O Ports
7.6.3
Pin Functions in Each Mode
Modes 1, 3, and 5
P65 to P63 function as bus control output pins. P60 is either a bus control input pin or generic
input/output pin, functioning as an output pin when bit P60DDR is set to 1 and an input pin when
this bit is cleared to 0. Figure 7.17 and table 7.9 indicate the pin functions in modes 1, 3, and 5.
WR (output)
Port 6
RD (output)
AS (output)
P60 (input/output)/WAIT (input)
Figure 7.17 Pin Functions in Modes 1, 3, and 5 (Port 6)
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Section 7 I/O Ports
Table 7.9
Port 6 Pin Functions in Modes 1, 3, and 5
Pin
Pin Functions and Selection Method
P65/WR
Functions as follows regardless of P65DDR
P65DDR
0
1
WR output
Pin function
P64/RD
Functions as follows regardless of P64DDR
P64DDR
0
1
RD output
Pin function
P63/AS
Functions as follows regardless of P63DDR
P63DDR
0
1
AS output
Pin function
P60/WAIT
Bits WCE7 to WCE0 in WCER, bit WMS1 in WCR, and bit P60DDR select the pin
function as follows
WCER
All 1s
WMS1
0
P60DDR
Pin function
Note:
Not all 1s
*
0
1
P60 input
P60 output
1
—
0*
0*
WAIT input
Do not set bit P60DDR to 1.
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Section 7 I/O Ports
Modes 6 and 7
Input or output can be selected separately for each pin in port 6. A pin becomes an output pin if
the corresponding P6DDR bit is set to 1, and an input pin if this bit is cleared to 0. Figure 7.18
shows the pin functions in modes 6 and 7.
P6 5 (input/output)
Port 6
P6 4 (input/output)
P6 3 (input/output)
P6 0 (input/output)
Figure 7.18 Pin Functions in Modes 6 and 7 (Port 6)
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Section 7 I/O Ports
7.7
Port 7
7.7.1
Overview
Port 7 is an 8-bit input port that is also used for analog input to the A/D converter. The pin
functions are the same in all operating modes. Figure 7.19 shows the pin configuration of port 7.
Port 7 pins
P77 (input)/AN 7 (input)
P76 (input)/AN 6 (input)
P75 (input)/AN 5 (input)
Port 7
P74 (input)/AN 4 (input)
P73 (input)/AN 3 (input)
P72 (input)/AN 2 (input)
P71 (input)/AN 1 (input)
P70 (input)/AN 0 (input)
Figure 7.19 Port 7 Pin Configuration
7.7.2
Register Description
Table 7.10 summarizes the port 7 register. Port 7 is an input-only port, so it has no data direction
register.
Table 7.10 Port 7 Data Register
Address*
Name
Abbreviation
R/W
Initial Value
H'FFCE
Port 7 data register
P7DR
R
Undetermined
Note:
*
Lower 16 bits of the address.
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Section 7 I/O Ports
Port 7 Data Register (P7DR)
Bit
7
6
5
4
3
2
1
0
P77
P76
P75
P74
P73
P72
P71
P70
Initial value
—*
—*
—*
—*
—*
—*
—*
—*
Read/Write
R
R
R
R
R
R
R
R
Note: * Determined by pins P7 to P0.
When P7DR is read, the pin levels are always read.
7.8
Port 8
7.8.1
Overview
Port 8 is a 2-bit input/output port that is also used for IRQ1 and IRQ0 input. Figure 7.20 shows the
pin configuration of port 8.
Pin P80 functions as input/output pin or as an IRQ0 input pin. Pins P81 function as either input pins
or IRQ1 input pins in modes 1, 3, and 5, and as input/output pins or IRQ1 input pins in modes 6 and
7.
Pins in port 8 can drive one TTL load and a 90-pF capacitive load. They can also drive a
Darlington transistor pair. Pins P81 and P80 have Schmitt-trigger inputs.
Port 8
Port 8 pins
Modes 1, 3, and 5
Modes 6 and 7
P81/IRQ1
P81 (input)/IRQ1 (input)
P81 (input/output)/IRQ1 (input)
P80/IRQ0
P80 (input/output)/IRQ0 (input) P80 (input/output)/IRQ0 (input)
Figure 7.20 Port 8 Pin Configuration
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Section 7 I/O Ports
7.8.2
Register Descriptions
Table 7.11 summarizes the registers of port 8.
Table 7.11 Port 8 Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFCD
Port 8 data direction register
P8DDR
W
H'E0
H'FFCF
Port 8 data register
P8DR
R/W
H'E0
Note:
*
Lower 16 bits of the address.
Port 8 Data Direction Register (P8DDR)
P8DDR is an 8-bit write-only register that can select input or output for each pin in port 8.
Bit
7
6
5
4
3
2
—
—
—
—
—
—
1
0
P8 1 DDR P8 0 DDR
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
W
W
W
W
W
Reserved bits
Port 8 data direction 1 and 0
These bits select input or
output for port 8 pins
P8DDR is initialized to H'E0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P8DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
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Section 7 I/O Ports
Port 8 Data Register (P8DR)
P8DR is an 8-bit readable/writable register that stores data for pins P81 to P80.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
P8 1
P8 0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Reserved bits
Port 8 data 1 and 0
These bits store data
for port 8 pins
When a bit in P8DDR is set to 1, if port 8 is read the value of the corresponding P8DR bit is
returned directly. When a bit in P8DDR is cleared to 0, if port 8 is read the corresponding pin level
is read.
Bits 7 to 2 are reserved. Bits 7 to 5 cannot be modified and always read 1. Bit 4, 3, and 2 can be
written and read, but it cannot be used for port input or output. If bit 4, 3, and 2 of P8DDR is read
while its value is 1, bit 4, 3 and 2 of P8DR is read directly. If bit 4, 3, and 2 of P8DDR is read
while its value is 0, it always reads 1.
P8DR is initialized to H'E0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
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Section 7 I/O Ports
7.8.3
Pin Functions
The port 8 pins are also used for IRQ1 and IRQ0. Table 7.12 describes the selection of pin
functions.
Table 7.12 Port 8 Pin Functions
Pin
Pin Functions and Selection Method
P81/IRQ1
Bit P81DDR selects the pin function as follows
P81DDR
Pin function
0
1
P81 input
Modes 1, 3, and 5
Modes 6 and 7
Illegal setting
P81 output
IRQ1 input
P80/IRQ0
Bit P80DDR selects the pin function as follows
P80DDR
Pin function
0
1
P80 input
P80 output
IRQ0 input
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Section 7 I/O Ports
7.9
Port 9
7.9.1
Overview
Port 9 is a 6-bit input/output port that is also used for input and output (TxD0, TxD1, RxD0, RxD1,
SCK0, SCK1) by serial communication interface channels 0 and 1 (SCI0 and SCI1), and for IRQ5
and IRQ4 input.
Port 9 has the same set of pin functions in all operating modes. Figure 7.21 shows the pin
configuration of port 9.
Pins in port 9 can drive one TTL load and a 30-pF capacitive load. They can also drive a
Darlington transistor pair.
Port 9 pins
P95 (input/output)/SCK 1 (input/output)/IRQ 5 (input)
P94 (input/output)/SCK 0 (input/output)/IRQ 4 (input)
P93 (input/output)/RxD1 (input)
Port 9
P92 (input/output)/RxD0 (input)
P91 (input/output)/TxD1 (output)
P90 (input/output)/TxD0 (output)
Figure 7.21 Port 9 Pin Configuration
7.9.2
Register Descriptions
Table 7.13 summarizes the registers of port 9.
Table 7.13 Port 9 Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFD0
Port 9 data direction register
P9DDR
W
H'C0
H'FFD2
Port 9 data register
P9DR
R/W
H'C0
Note:
*
Lower 16 bits of the address.
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Section 7 I/O Ports
Port 9 Data Direction Register (P9DDR)
P9DDR is an 8-bit write-only register that can select input or output for each pin in port 9.
Bit
7
6
—
—
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
W
W
W
W
W
W
5
4
3
2
1
0
P9 5 DDR P9 4 DDR P9 3 DDR P9 2 DDR P9 1 DDR P9 0 DDR
Reserved bits
Port 9 data direction 5 to 0
These bits select input or
output for port 9 pins
A pin in port 9 becomes an output pin if the corresponding P9DDR bit is set to 1, and an input pin
if this bit is cleared to 0.
P9DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P9DDR is initialized to H'C0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P9DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Port 9 Data Register (P9DR)
P9DR is an 8-bit readable/writable register that stores output data for pins P95 to P90.
Bit
7
6
5
4
3
2
1
0
—
—
P9 5
P9 4
P9 3
P9 2
P9 1
P9 0
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Port 9 data 5 to 0
These bits store data
for port 9 pins
When a bit in P9DDR is set to 1, if port 9 is read the value of the corresponding P9DR bit is
returned. When a bit in P9DDR is cleared to 0, if port 9 is read the corresponding pin level is read.
Bits 7 and 6 are reserved. They cannot be modified and are always read as 1.
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Section 7 I/O Ports
P9DR is initialized to H'C0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
7.9.3
Pin Functions
The port 9 pins are also used for SCI input and output (TxD, RxD, SCK), and for IRQ5 and IRQ4
input. Table 7.14 describes the selection of pin functions.
Table 7.14 Port 9 Pin Functions
Pin
Pin Functions and Selection Method
P95/SCK1/
IRQ5
Bit C/A in SMR of SCI1, bits CKE0 and CKE1 in SCR of SCI1, and bit P95DDR select
the pin function as follows
CKE1
0
C/A
0
CKE0
P95DDR
Pin function
1
0
1
—
1
—
—
0
1
—
—
—
P95
input
P95
output
SCK1 output
SCK1 output
SCK1 input
IRQ5 input
P94/SCK0/
IRQ4
Bit C/A in SMR of SCI0, bits CKE0 and CKE1 in SCR of SCI, and bit P94DDR select
the pin function as follows
CKE1
0
C/A
0
CKE0
P94DDR
Pin function
1
0
1
—
1
—
—
0
1
—
—
—
P94
input
P94
output
SCK0 output
SCK0 output
SCK0 input
IRQ4 input
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Section 7 I/O Ports
Pin
Pin Functions and Selection Method
P93/RxD1
Bit RE in SCR of SCI1 and bit P93DDR select the pin function as follows
RE
0
P93DDR
Pin function
P92/RxD0
1
0
1
—
P93 input
P93 output
RxD1 input
Bit RE in SCR of SCI0, bit SMIF in SCMR, and bit P92DDR select the pin function as
follows
SMIF
0
RE
0
P92DDR
Pin function
P91/TxD1
1
—
0
1
—
—
P92 input
P92 output
RxD0 input
RxD0 input
Bit TE in SCR of SCI1 and bit P91DDR select the pin function as follows
TE
0
P91DDR
Pin function
P90/TxD0
1
1
0
1
—
P91 input
P91 output
TxD1 output
Bit TE in SCR of SCI0, bit SMIF in SCMR, and bit P90DDR select the pin function as
follows
SMIF
0
TE
0
P90DDR
Pin function
Note:
*
1
1
—
0
1
—
—
P90 input
P90 output
TxD0 output
TxD0 output*
Functions as the TxD0 output pin, but there are two states: one in which
the pin is driven, and another in which the pin is at high impedance.
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Section 7 I/O Ports
7.10
Port A
7.10.1
Overview
Port A is an 8-bit input/output port that is also used for output (TP7 to TP0) from the programmable
timing pattern controller (TPC), input and output (TIOCB2, TIOCA2, TIOCB1, TIOCA1, TIOCB0,
TIOCA0, TCLKD, TCLKC, TCLKB, TCLKA) by the 16-bit integrated timer unit (ITU), and
address output (A23 to A20). Figure 7.22 shows the pin configuration of port A.
Pins in port A can drive one TTL load and a 30-pF capacitive load. They can also drive a
Darlington transistor pair. Port A has Schmitt-trigger inputs.
Port A
Port A pins
Modes 1, 5 and 7
PA7 /TP7/TIOCB 2 /A 20
PA 7 (input/output)/TP7 (output)/TIOCB 2 (input/output)
PA6 /TP6/TIOCA 2 /A 21
PA 6 (input/output)/TP6 (output)/TIOCA 2 (input/output)
PA5 /TP5/TIOCB 1 /A 22
PA 5 (input/output)/TP5 (output)/TIOCB 1 (input/output)
PA4 /TP4/TIOCA 1 /A 23
PA 4 (input/output)/TP4 (output)/TIOCA 1 (input/output)
PA3 /TP3/TIOCB 0 /TCLKD
PA 3 (input/output)/TP3 (output)/TIOCB 0 (input/output)/TCLKD (input)
PA2 /TP2/TIOCA 0 /TCLKC
PA 2 (input/output)/TP2 (output)/TIOCA 0 (input/output)/TCLKC (input)
PA1 /TP1/TCLKB
PA 1 (input/output)/TP1 (output)/TCLKB (input)
PA0 /TP0/TCLKA
PA 0 (input/output)/TP0 (output)/TCLKA (input)
Mode 3
A 20 (output)
PA 6 (input/output)/TP6 (output)/TIOCA 2 (input/output) /A 21 (output)
PA 5 (input/output)/TP5 (output)/TIOCB 1 (input/output) /A 22 (output)
PA 4 (input/output)/TP4 (output)/TIOCA 1 (input/output) /A 23 (output)
PA 3 (input/output)/TP3 (output)/TIOCB 0 (input/output)/TCLKD (input)
PA 2 (input/output)/TP2 (output)/TIOCA 0 (input/output)/TCLKC (input)
PA 1 (input/output)/TP1 (output)/TCLKB (input)
PA 0 (input/output)/TP0 (output)/TCLKA (input)
Figure 7.22 Port A Pin Configuration
Rev.3.00 Mar. 26, 2007 Page 172 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.10.2
Register Descriptions
Table 7.15 summarizes the registers of port A.
Table 7.15 Port A Registers
Initial Value
Address*
Name
Abbreviation
R/W
Modes 1, 5, and 7
Mode 3
H'FFD1
Port A data direction
register
PADDR
W
H'00
H'80
H'FFD3
Port A data register
PADR
R/W
H'00
H'00
Note:
*
Lower 16 bits of the address.
Port A Data Direction Register (PADDR)
PADDR is an 8-bit write-only register that can select input or output for each pin in port A. The
corresponding PADDR bit should also be set when a pin is used as a TPC output.
7
Bit
Modes
1, 5, and 7
Mode 3
6
5
4
3
2
1
0
PA7 DDR PA6 DDR PA5 DDR PA4 DDR PA3 DDR PA2 DDR PA1 DDR PA0 DDR
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
W
W
W
W
W
W
W
Port A data direction 7 to 0
These bits select input or output for port A pins
A pin in port A becomes an output pin if the corresponding PADDR bit is set to 1, and an input
pin if this bit is cleared to 0. However, in mode 3, PA7 DDR is fixed at 1, and PA7 functions as an
address output pin.
PADDR is a write-only register. Its value cannot be read. All bits return 1 when read.
PADDR is initialized to H'00 in modes 1, 5 and 7 and to H'80 in mode 3 by a reset and in
hardware standby mode. In software standby mode it retains its previous setting. If a PADDR bit
is set to 1, the corresponding pin maintains its output state in software standby mode.
Rev.3.00 Mar. 26, 2007 Page 173 of 682
REJ09B0353-0300
Section 7 I/O Ports
Port A Data Register (PADR)
PADR is an 8-bit readable/writable register that stores data for pins PA7 to PA0.
Bit
7
6
5
4
3
2
1
0
PA 7
PA 6
PA 5
PA 4
PA 3
PA 2
PA 1
PA 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port A data 7 to 0
These bits store data for port A pins
When a bit in PADDR is set to 1, if port A is read the value of the corresponding PADR bit is
returned directly. When a bit in PADDR is cleared to 0, if port A is read the corresponding pin
level is read.
PADR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
When port A pins are used for TPC output, PADR stores output data for TPC output groups 0 and
1. If a bit in the next data enable register (NDERA) is set to 1, the corresponding PADR bit cannot
be written. In this case, PADR can be updated only when data is transferred from NDRA.
Rev.3.00 Mar. 26, 2007 Page 174 of 682
REJ09B0353-0300
Section 7 I/O Ports
7.10.3
Pin Functions
The port A pins are also used for TPC output (TP7 to TP0), ITU input/output (TIOCB2 to TIOCB0,
TIOCA2 to TIOCA0) and input (TCLKD, TCLKC, TCLKB, TCLKA), and as address bus pins (A23
to A20). Table 7.16 describes the selection of pin functions.
Table 7.16 Port A Pin Functions
Pin
Pin Functions and Selection Method
PA7/TP7/
TIOCB2/
A20
The mode setting, ITU channel 2 settings (bit PWM2 in TMDR and bits IOB2 to IOB0
in TIOR2), bit NDER7 in NDERA, and bit PA7DDR in PADDR select the pin function
as follows
Mode
1, 5 to 7
ITU channel 2
settings
(1) in table below
(2) in table below
—
PA7DDR
—
NDER7
Pin function
3
0
1
1
—
—
—
0
1
—
TIOCB2 output
PA7
input
PA7
output
TP7
output
A20
output
TIOCB2 input*
Note:
*
TIOCB2 input when IOB2 = 1 and PWM2 = 0.
ITU channel 2
settings
(2)
IOB2
(1)
(2)
0
1
IOB1
0
0
1
—
IOB0
0
1
—
—
Rev.3.00 Mar. 26, 2007 Page 175 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA6/TP6/
TIOCA2/
A21
The mode setting, bit A21E in BRCR, ITU channel 2 settings (bit PWM2 in TMDR and
bits IOA2 to IOA0 in TIOR2), bit NDER6 in NDERA, and bit PA6DDR in PADDR select
the pin function as follows
Mode
1, 5 to 7
A21E
3
—
1
(2) in table below
(1) in
table
below
0
ITU
channel 2
settings
(1) in
table
below
PA6DDR
—
0
1
1
—
0
1
1
—
NDER6
—
—
0
1
—
—
0
1
—
Pin
function
TIOCA2
output
PA6
input
PA6
output
TP6 TIOCA2
output output
(2) in table below
—
PA6
input
TIOCA2 input*
Note:
*
ITU
channel 2
settings
PA6
TP6
A21
output output output
TIOCA2 input*
TIOCA2 input when IOA2 = 1.
(2)
(1)
PWM2
(2)
0
IOA2
(1)
1
0
1
—
IOA1
0
0
1
—
—
IOA0
0
1
—
—
—
Rev.3.00 Mar. 26, 2007 Page 176 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA5/TP5/
TIOCB1/
A22
The mode setting, bit A22E in BRCR, ITU channel 1 settings (bit PWM1 in TMDR and
bits IOB2 to IOB0 in TIOR1), bit NDER5 in NDERA, and bit PA5DDR in PADDR select
the pin function as follows
Mode
1, 5 to 7
A22E
3
—
ITU
channel 1
settings
(1) in
table
below
1
(2) in table below
(1) in
table
below
0
(2) in table below
—
PA5DDR
—
0
1
1
—
0
1
1
—
NDER5
—
—
0
1
—
—
0
1
—
Pin
function
TIOCB1
output
PA5
input
PA5
output
TP5 TIOCB1
output output
TIOCB1 input*
Note:
*
ITU
channel 1
settings
PA5
input
PA5
TP5
A22
output output output
TIOCB1 input*
TIOCB1 input when IOB2 = 1 and PWM1 = 0.
(2)
IOB2
(1)
(2)
0
1
IOB1
0
0
1
—
IOB0
0
1
—
—
Rev.3.00 Mar. 26, 2007 Page 177 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA4/TP4/
TIOCB1/
A23
The mode setting, bit A23E in BRCR, ITU channel 1 settings (bit PWM1 in TMDR and
bits IOA2 to IOA0 in TIOR1), bit NDER4 in NDERA, and bit PA4DDR in PADDR select
the pin function as follows
Mode
1, 5 to 7
A23E
3
—
ITU
channel 1
settings
(1) in
table
below
1
(2) in table below
(1) in
table
below
0
(2) in table below
—
PA4DDR
—
0
1
1
—
0
1
1
—
NDER4
—
—
0
1
—
—
0
1
—
Pin
function
TIOCA1
output
PA4
input
PA4
output
TP5 TIOCA1 PA4
output output input
TIOCA1 input*
Note:
*
ITU
channel 1
settings
PA4
TP4
A23
output output output
TIOCA1 input*
TIOCA1 input when IOA2 = 1.
(2)
(1)
PWM1
(2)
0
IOA2
(1)
1
0
1
—
IOA1
0
0
1
—
—
IOA0
0
1
—
—
—
Rev.3.00 Mar. 26, 2007 Page 178 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA3/TP3/
TIOCB0/
TCLKD
ITU channel 0 settings (bit PWM0 in TMDR and bits IOB2 to IOB0 in TIOR0), bits
TPSC2 to TPSC0 in TCR4 to TCR0, bit NDER3 in NDERA, and bit PA3DDR in
PADDR select the pin function as follows
ITU
channel 0
settings
(1) in table below
PA3DDR
—
0
1
1
NDER3
—
—
0
1
Pin
function
TIOCB0 output
PA3 input
(2) in table below
PA3 output TP3 output
TIOCB0 input*
TCLKD input*
1
2
Notes: 1. TIOCB0 input when IOB2 = 1 and PWM0 = 0.
2. TCLKD input when TPSC2 = TPSC1 = TPSC0 = 1 in any of TCR4 to
TCR0.
ITU
channel 0
settings
(2)
IOB2
(1)
(2)
0
1
IOB1
0
0
1
—
IOB0
0
1
—
—
Rev.3.00 Mar. 26, 2007 Page 179 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA2/TP2/
TIOCA0/
TCLKC
ITU channel 0 settings (bit PWM0 in TMDR and bits IOA2 to IOA0 in TIOR0), bits
TPSC2 to TPSC0 in TCR4 to TCR0, bit NDER2 in NDERA, and bit PA2DDR in PADDR
select the pin function as follows
ITU
channel 0
settings
(1) in table below
PA2DDR
—
0
1
1
NDER2
—
—
0
1
Pin
function
TIOCA0 output
(2) in table below
PA2 input PA2 output TP2 output
TIOCA0 input*
TCLKC input*
1
2
Notes: 1. TIOCA0 input when IOA2 = 1.
2. TCLKC input when TPSC2 = TPSC1 = 1 and TPSC0 = 0 in any of TCR4 to
TCR0.
ITU
channel 0
settings
(2)
(1)
PWM0
(2)
0
IOA2
(1)
1
0
1
—
IOA1
0
0
1
—
—
IOA0
0
1
—
—
—
Rev.3.00 Mar. 26, 2007 Page 180 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PA1/TP1/
TCLKB
Bit NDER1 in NDERA and bit PA1DDR in PADDR select the pin function as follows
PA1DDR
1
1
NDER1
—
0
1
Pin
function
PA1 input
PA1 output
TP1 output
Note:
PA0/TP0/
TCLKA
0
TCLKB input*
*
TCLKB input when MDF = 1 in TMDR, or when TPSC2 = 1, TPSC1 = 0,
and TPSC0 = 1 in any of TCR4 to TCR0.
Bit NDER0 in NDERA and bit PA0DDR in PADDR select the pin function as follows
PA0DDR
0
1
1
NDER0
—
0
1
Pin
function
PA0 input
PA0 output
TP0 output
Note:
TCLKA input*
*
TCLKA input when MDF = 1 in TMDR, or when TPSC2 = 1 and TPSC1 =
TPSC0 = 0 in any of TCR4 to TCR0.
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Section 7 I/O Ports
7.11
Port B
7.11.1
Overview
Port B is a 7-bit input/output port that is also used for TPC output (TP15, TP13 to TP8), ITU
input/output (TIOCB4, TIOCB3, TIOCA4, TIOCA3) and ITU output (TOCXB4, TOCXA4), and
ADTRG input to the A/D converter. Port B has the same set of pin functions in all operating
modes. Figure 7.23 shows the pin configuration of port B.
Pins in port B can drive one TTL load and a 30-pF capacitive load. They can also drive an LED or
a Darlington transistor pair. Pins PB3 to PB0 have Schmitt-trigger inputs.
Port B pins
PB 7 (input/output)/TP15 (output)/ADTRG (input)
PB 5 (input/output)/TP13 (output)/TOCXB 4 (output)
PB 4 (input/output)/TP12 (output)/TOCXA 4 (output)
PB 3 (input/output)/TP11 (output)/TIOCB 4 (input/output)
Port B
PB 2 (input/output)/TP10 (output)/TIOCA 4 (input/output)
PB 1 (input/output)/TP9 (output)/TIOCB 3 (input/output)
PB 0 (input/output)/TP8 (output)/TIOCA 3 (input/output)
Figure 7.23 Port B Pin Configuration
7.11.2
Register Descriptions
Table 7.17 summarizes the registers of port B.
Table 7.17 Port B Registers
Address*
Name
Abbreviation
R/W
Initial Value
H'FFD4
Port B data direction register
PBDDR
W
H'00
H'FFD6
Port B data register
PBDR
R/W
H'00
Note:
*
Lower 16 bits of the address.
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REJ09B0353-0300
Section 7 I/O Ports
Port B Data Direction Register (PBDDR)
PBDDR is an 8-bit write-only register that can select input or output for each pin in port B.
Bit
7
6
PB7 DDR
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
5
4
3
2
1
0
PB5 DDR PB4 DDR PB3 DDR PB2 DDR PB1 DDR PB0 DDR
Port B data 7, 5 to 0
These bits select input or output for port B pins
Reserved bit
A pin in port B becomes an output pin if the corresponding PBDDR bit is set to 1, and an input pin
if this bit is cleared to 0.
Bit 6 is reserved.
PBDDR is a write-only register. Its value cannot be read. All bits return 1 when read.
PBDDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a PBDDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Port B Data Register (PBDR)
PBDR is an 8-bit readable/writable register that stores data for pins PB7, PB5 to PB0.
Bit
7
6
5
4
3
2
1
0
PB 7
—
PB 5
PB 4
PB 3
PB 2
PB 1
PB 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bit
Port B data 7, 5 to 0
These bits store data for port B pins
When a bit in PBDDR is set to 1, if port B is read the value of the corresponding PBDR bit is
returned directly. When a bit in PBDDR is cleared to 0, if port B is read the corresponding pin
level is read. Bit 6 is reserved. Bit 6 can be written and read, but cannot be used for a port input or
output.
Rev.3.00 Mar. 26, 2007 Page 183 of 682
REJ09B0353-0300
Section 7 I/O Ports
If bit 6 in PBDDR is read while its value is 1, the value of bit 6 in PBDR will be read directly. If
bit 6 in PBDDR is read while its value is 0, it will always be read as 1.
PBDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
When port B pins are used for TPC output, PBDR stores output data for TPC output groups 2 and
3. If a bit in the next data enable register (NDERB) is set to 1, the corresponding PBDR bit cannot
be written. In this case, PBDR can be updated only when data is transferred from NDRB.
7.11.3
Pin Functions
The port B pins are also used for TPC output (TP15, TP13 to TP8), ITU input/output (TIOCB4,
TIOCB3, TIOCA4, TIOCA3) and output (TOCXB4, TOCXA4), and ADTRG input. Table 7.18
describes the selection of pin functions.
Rev.3.00 Mar. 26, 2007 Page 184 of 682
REJ09B0353-0300
Section 7 I/O Ports
Table 7.18 Port B Pin Functions
Pin
Pin Functions and Selection Method
PB7/
TP15/
ADTRG
Bit TRGE in ADCR, bit NDER15 in NDERB and bit PB7DDR in PBDDR select the pin
function as follows
PB7DDR
0
1
1
NDER15
—
0
1
PB7 input
PB7 output
TP15 output
Pin function
ADTRG input*
Notes: *
PB5/
TP13/
TOCXB4
ADTRG input when TRGE = 1.
ITU channel 4 settings (bit CMD1 in TFCR and bit EXB4 in TOER), bit NDER13 in
NDERB, and bit PB5DDR in PBDDR select the pin function as follows
EXB4,
CMD1
Both 1
PB5DDR
0
1
1
—
NDER13
—
0
1
—
PB5 input
PB5 output
TP13 output
TOCXB4 output
Pin function
PB4/
TP12/
TOCXA4
Not both 1
ITU channel 4 settings (bit CMD1 in TFCR and bit EXA4 in TOER), bit NDER12 in
NDERB, and bit PB4DDR in PBDDR select the pin function as follows
EXA4,
CMD1
Not both 1
Both 1
PB4DDR
0
1
1
—
NDER12
—
0
1
—
PB4 input
PB4 output
TP12 output
TOCXA4 output
Pin function
Rev.3.00 Mar. 26, 2007 Page 185 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PB3/
TP11/
TIOCB4
ITU channel 4 settings (bit PWM4 in TMDR, bit CMD1 in TFCR, bit EB4 in TOER, and
bits IOB2 to IOB0 in TIOR4), bit NDER11 in NDERB, and bit PB3DDR in PBDDR select
the pin function as follows
ITU channel
4 settings
(1) in table below
(2) in table below
PB3DDR
—
0
1
1
NDER11
—
—
0
1
TIOCB4 output
PB3 input
PB3 output
TP11 output
Pin function
TIOCB4 input*
Note:
*
TIOCB4 input when CMD1 = PWM4 = 0 and IOB2 = 1.
ITU channel
4 settings
(2)
(2)
(1)
(2)
(1)
EB4
0
CMD1
—
IOB2
—
0
0
0
1
—
IOB1
—
0
0
1
—
—
IOB0
—
0
1
—
—
—
Rev.3.00 Mar. 26, 2007 Page 186 of 682
REJ09B0353-0300
1
0
1
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PB2/
TP10/
TIOCA4
ITU channel 4 settings (bit CMD1 in TFCR, bit EA4 in TOER, bit PWM4 in TMDR, and
bits IOA2 to IOA0 in TIOR4), bit NDER10 in NDERB, and bit PB2DDR in PBDDR select
the pin function as follows
ITU channel
4 settings
(1) in table below
(2) in table below
PB2DDR
—
0
1
1
NDER11
—
—
0
1
TIOCA4 output
PB2 input
Pin function
PB2 output TP10 output
TIOCA4 input*
Note:
*
TIOCA4 input when CMD1 = PWM4 = 0 and IOB2 = 1.
ITU channel
4 settings
(2)
(2)
(1)
EA4
0
CMD1
—
PWM4
—
IOA2
—
0
0
IOA1
—
0
IOA0
—
0
(2)
(1)
1
0
1
0
1
—
0
1
—
—
0
1
—
—
—
1
—
—
—
—
Rev.3.00 Mar. 26, 2007 Page 187 of 682
REJ09B0353-0300
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PB1/TP9/
TIOCB3
ITU channel 3 settings (bit PWM3 in TMDR, bit CMD1 in TFCR, bit EB3 in TOER, and
bits IOB2 to IOB0 in TIOR3), bit NDER11 in NDERB, and bit PB1DDR in PBDDR select
the pin function as follows
ITU channel
3 settings
(1) in table below
(2) in table below
PB1DDR
—
0
1
1
NDER9
—
—
0
1
TIOCB3 output
PB1 input
PB1 output
TP9 output
Pin function
TIOCB3 input*
Note:
*
TIOCB3 input when CMD1 = PWM3 = 0 and IOB2 = 1.
ITU channel
3 settings
(2)
(2)
(1)
(2)
(1)
EB3
0
CMD1
—
IOB2
—
0
0
0
1
—
IOB1
—
0
0
1
—
—
IOB0
—
0
1
—
—
—
Rev.3.00 Mar. 26, 2007 Page 188 of 682
REJ09B0353-0300
1
0
1
Section 7 I/O Ports
Pin
Pin Functions and Selection Method
PB0/TP8/
TIOCA3
ITU channel 3 settings (bit CMD1 in TFCR, bit EA3 in TOER, bit PWM3 in TMDR, and
bits IOA2 to IOA0 in TIOR3), bit NDER8 in NDERB, and bit PB0DDR in PBDDR select
the pin function as follows
ITU channel
3 settings
(1) in table below
(2) in table below
PB0DDR
—
0
1
1
NDER8
—
—
0
1
TIOCA3 output
PB0 input
PB0 output
TP8 output
Pin function
TIOCA3 input*
Note:
*
TIOCA3 input when CMD1 = PWM3 = 0 and IOA2 = 1.
ITU channel
3 settings
(2)
(2)
(1)
EA3
0
CMD1
—
PWM3
—
IOA2
—
0
0
IOA1
—
0
IOA0
—
0
(2)
(1)
1
0
1
0
1
—
0
1
—
—
0
1
—
—
—
1
—
—
—
—
Rev.3.00 Mar. 26, 2007 Page 189 of 682
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Section 7 I/O Ports
Rev.3.00 Mar. 26, 2007 Page 190 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Section 8 16-Bit Integrated Timer Unit (ITU)
8.1
Overview
The H8/3039 Group has a built-in 16-bit integrated timer-pulse unit (ITU) with five 16-bit timer
channels.
8.1.1
Features
ITU features are listed below.
• Capability to process up to 12 pulse outputs or 10 pulse inputs
• Ten general registers (GRs, two per channel) with independently-assignable output compare or
input capture functions
• Selection of eight counter clock sources for each channel:
Internal clocks: φ, φ/2, φ/4, φ/8
External clocks: TCLKA, TCLKB, TCLKC, TCLKD
• Five operating modes selectable in all channels:
Waveform output by compare match
Selection of 0 output, 1 output, or toggle output (only 0 or 1 output in channel 2)
Input capture function
Rising edge, falling edge, or both edges (selectable)
Counter clearing function
Counters can be cleared by compare match or input capture
Synchronization
Two or more timer counters (TCNTs) can be preset simultaneously, or cleared
simultaneously by compare match or input capture. Counter synchronization enables
synchronous register input and output.
PWM mode
PWM output can be provided with an arbitrary duty cycle. With synchronization, up to
five-phase PWM output is possible
• Phase counting mode selectable in channel 2
Two-phase encoder output can be counted automatically.
Rev.3.00 Mar. 26, 2007 Page 191 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
• Three additional modes selectable in channels 3 and 4
Reset-synchronized PWM mode
If channels 3 and 4 are combined, three-phase PWM output is possible with three pairs of
complementary waveforms.
Complementary PWM mode
If channels 3 and 4 are combined, three-phase PWM output is possible with three pairs of
non-overlapping complementary waveforms.
Buffering
Input capture registers can be double-buffered. Output compare registers can be updated
automatically.
• High-speed access via internal 16-bit bus
The 16-bit timer counters, general registers, and buffer registers can be accessed at high speed
via a 16-bit bus.
• Fifteen interrupt sources
Each channel has two compare match/input capture interrupts and an overflow interrupt. All
interrupts can be requested independently.
• Output triggering of programmable pattern controller (TPC)
Compare match/input capture signals from channels 0 to 3 can be used as TPC output triggers.
Table 8.1 summarizes the ITU functions.
Rev.3.00 Mar. 26, 2007 Page 192 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Table 8.1
ITU Functions
Item
Channel 0
Clock sources
Channel 1
Channel 2
Channel 3
Channel 4
Internal clocks: φ, φ/2, φ/4, φ/8
External clocks: TCLKA, TCLKB, TCLKC, TCLKD, selectable independently
General registers
GRA0, GRB0
(output compare/
input capture registers)
GRA1, GRB1
GRA2, GRB2
GRA3, GRB3
GRA4, GRB4
Buffer registers
—
—
—
BRA3, BRB3
BRA4, BRB4
Input/output pins
TIOCA0, TIOCB0 TIOCA1, TIOCB1 TIOCA2, TIOCB2 TIOCA3, TIOCB3 TIOCA4, TIOCB4
Output pins
—
Counter clearing
function
GRA4/GRB4
GRA3/GRB3
GRA2/GRB2
GRA1/GRB1
GRA0/GRB0
compare match compare match compare match compare match compare match
or input capture or input capture or input capture or input capture or input capture
Compare
match
output
0
O
O
O
O
O
1
O
O
O
O
O
Toggle
O
O
—
O
O
O
O
O
O
O
Input capture function
—
—
—
TOCXA4,
TOCXB4
Synchronization
O
O
O
O
O
PWM mode
O
O
O
O
O
Reset-synchronized
PWM mode
—
—
—
O
O
Complementary PWM
mode
—
—
—
O
O
Phase counting mode
—
—
O
—
—
Buffering
—
—
—
O
O
Interrupt sources
Three sources
Three sources
Three sources
Three sources
Three sources
• Compare
match/input
capture A0
• Compare
match/input
capture A1
• Compare
match/input
capture A2
• Compare
match/input
capture A3
• Compare
match/input
capture A4
• Compare
match/input
capture B0
• Compare
match/input
capture B1
• Compare
match/input
capture B2
• Compare
match/input
capture B3
• Compare
match/input
capture B4
• Overflow
• Overflow
• Overflow
• Overflow
• Overflow
Legend:
O: Available
—: Not available
Rev.3.00 Mar. 26, 2007 Page 193 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.1.2
Block Diagrams
ITU Block Diagram (Overall)
Figure 8.1 is a block diagram of the ITU.
TCLKA to TCLKD
IMIA0 to IMIA4
IMIB0 to IMIB4
OVI0 to OVI4
Clock selector
φ, φ/2, φ/4, φ/8
TOCXA4, TOCXB4
Control logic
TIOCA0 to TIOCA4
TIOCB0 to TIOCB4
TSTR
TSNC
TMDR
TFCR
Module data bus
Legend:
TOER: Timer output master enable register (8 bits)
TOCR: Timer output control register (8 bits)
TSTR: Timer start register (8 bits)
TSNC: Timer synchro register (8 bits)
TMDR: Timer mode register (8 bits)
TFCR: Timer function control register (8 bits)
Figure 8.1 ITU Block Diagram (Overall)
Rev.3.00 Mar. 26, 2007 Page 194 of 682
REJ09B0353-0300
Internal data bus
TOCR
Bus interface
16-bit timer channel 0
16-bit timer channel 1
16-bit timer channel 2
16-bit timer channel 3
16-bit timer channel 4
TOER
Section 8 16-Bit Integrated Timer Unit (ITU)
Block Diagram of Channels 0 and 1
ITU channels 0 and 1 are functionally identical. Both have the structure shown in figure 8.2.
TCLKA to TCLKD
φ, φ/2, φ/4, φ/8
TIOCA0
TIOCB0
Clock selector
Control logic
IMIA0
IMIB0
OVI0
TSR
TIER
TIOR
TCR
GRB
GRA
TCNT
Comparator
Module data bus
Legend:
TCNT:
GRA, GRB:
TCR:
TIOR:
TIER:
TSR:
Timer counter (16 bits)
General registers A and B (input capture/output compare registers) (16 bits × 2)
Timer control register (8 bits)
Timer I/O control register (8 bits)
Timer interrupt enable register (8 bits)
Timer status register (8 bits)
Figure 8.2 Block Diagram of Channels 0 and 1 (for Channel 0)
Rev.3.00 Mar. 26, 2007 Page 195 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Block Diagram of Channel 2
Figure 8.3 is a block diagram of channel 2. This is the channel that provides only 0 output and 1
output.
TCLKA to TCLKD
φ, φ/2, φ/4, φ/8
TIOCA2
TIOCB2
Clock selector
Control logic
IMIA2
IMIB2
OVI2
TSR2
TIER2
TIOR2
TCR2
GRB2
GRA2
TCNT2
Comparator
Module data bus
Legend:
Timer counter 2 (16 bits)
TCNT2:
GRA2, GRB2: General registers A2 and B2 (input capture/output compare registers)
(16 bits × 2)
Timer control register 2 (8 bits)
TCR2:
Timer I/O control register 2 (8 bits)
TIOR2:
Timer interrupt enable register 2 (8 bits)
TIER2:
Timer status register 2 (8 bits)
TSR2:
Figure 8.3 Block Diagram of Channel 2
Rev.3.00 Mar. 26, 2007 Page 196 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Block Diagrams of Channels 3 and 4
Figure 8.4 is a block diagram of channel 3. Figure 8.5 is a block diagram of channel 4.
TCLKA to
TCLKD
φ, φ/2,
φ/4, φ/8
TIOCA3
TIOCB3
Clock selector
Control logic
IMIA3
IMIB3
OVI3
TSR3
TIER3
TIOR3
TCR3
GRB3
BRB3
GRA3
BRA3
TCNT3
Comparator
Module data bus
Legend:
Timer counter 3 (16 bits)
TCNT3:
GRA3, GRB3: General registers A3 and B3 (input capture/output compare registers)
(16 bits × 2)
BRA3, BRB3: Buffer registers A3 and B3 (input capture/output compare buffer registers)
(16 bits × 2)
Timer control register 3 (8 bits)
TCR3:
TIOR3:
Timer I/O control register 3 (8 bits)
TIER3:
Timer interrupt enable register 3 (8 bits)
TSR3:
Timer status register 3 (8 bits)
Figure 8.4 Block Diagram of Channel 3
Rev.3.00 Mar. 26, 2007 Page 197 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
TCLKA to
TCLKD
φ, φ/2,
φ/4, φ/8
TOCXA4
TOCXB4
TIOCA4
TIOCB4
IMIA4
IMIB4
OVI4
Clock selector
Control logic
TSR4
TIER4
TIOR4
TCR4
GRB4
BRB4
GRA4
BRA4
TCNT4
Comparator
Module data bus
Legend:
Timer counter 4 (16 bits)
TCNT4:
GRA4, GRB4: General registers A4 and B4 (input capture/output compare registers)
(16 bits × 2)
BRA4, BRB4: Buffer registers A4 and B4 (input capture/output compare buffer registers)
(16 bits × 2)
Timer control register 4 (8 bits)
TCR4:
TIOR4:
Timer I/O control register 4 (8 bits)
TIER4:
Timer interrupt enable register 4 (8 bits)
TSR4:
Timer status register 4 (8 bits)
Figure 8.5 Block Diagram of Channel 4
Rev.3.00 Mar. 26, 2007 Page 198 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.1.3
Input/Output Pins
Table 8.2 summarizes the ITU pins.
Table 8.2
ITU Pins
Channel
Name
Abbreviation
Input/
Output
Common
Clock input A
TCLKA
Input
External clock A input pin
(phase-A input pin in phase counting
mode)
Clock input B
TCLKB
Input
External clock B input pin
(phase-B input pin in phase counting
mode)
Clock input C
TCLKC
Input
External clock C input pin
Clock input D
TCLKD
Input
External clock D input pin
Input capture/output
compare A0
TIOCA0
Input/
output
GRA0 output compare or input capture pin
PWM output pin in PWM mode
Input capture/output
compare B0
TIOCB0
Input/
output
GRB0 output compare or input capture pin
Input capture/output
compare A1
TIOCA1
Input/
output
GRA1 output compare or input capture pin
PWM output pin in PWM mode
Input capture/output
compare B1
TIOCB1
Input/
output
GRB1 output compare or input capture pin
Input capture/output
compare A2
TIOCA2
Input/
output
GRA2 output compare or input capture pin
PWM output pin in PWM mode
Input capture/output
compare B2
TIOCB2
Input/
output
GRB2 output compare or input capture pin
Input capture/output
compare A3
TIOCA3
Input/
output
GRA3 output compare or input capture pin
PWM output pin in PWM mode,
complementary PWM mode, or resetsynchronized PWM mode
Input capture/output
compare B3
TIOCB3
Input/
output
GRB3 output compare or input capture pin
PWM output pin in complementary PWM
mode or reset-synchronized PWM mode
0
1
2
3
Function
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REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Abbreviation
Input/
Output
Input capture/output
compare A4
TIOCA4
Input/
output
GRA4 output compare or input capture pin
PWM output pin in PWM mode,
complementary PWM mode, or resetsynchronized PWM mode
Input capture/output
compare B4
TIOCB4
Input/
output
GRB4 output compare or input capture pin
PWM output pin in complementary PWM
mode or reset-synchronized PWM mode
Output compare XA4 TOCXA4
Output
PWM output pin in complementary PWM
mode or reset-synchronized PWM mode
Output compare XB4 TOCXB4
Output
PWM output pin in complementary PWM
mode or reset-synchronized PWM mode
Channel
Name
4
Rev.3.00 Mar. 26, 2007 Page 200 of 682
REJ09B0353-0300
Function
Section 8 16-Bit Integrated Timer Unit (ITU)
8.1.4
Register Configuration
Table 8.3 summarizes the ITU registers.
Table 8.3
ITU Registers
Name
Abbreviation
R/W
Initial
Value
H'FF60
Timer start register
TSTR
R/W
H'E0
H'FF61
Timer synchro register
TSNC
R/W
H'E0
H'FF62
Timer mode register
TMDR
R/W
H'80
H'FF63
Timer function control register
TFCR
R/W
H'C0
H'FF90
Timer output master enable register
TOER
R/W
H'FF
H'FF91
Timer output control register
TOCR
R/W
H'FF
H'FF64
Timer control register 0
TCR0
R/W
H'80
H'FF65
Timer I/O control register 0
TIOR0
R/W
H'88
H'FF66
Timer interrupt enable register 0
TIER0
R/W
Channel
Address*
Common
0
1
1
H'F8
2
H'FF67
Timer status register 0
TSR0
R/(W)*
H'FF68
Timer counter 0 (high)
TCNT0H
R/W
H'00
H'FF69
Timer counter 0 (low)
TCNT0L
R/W
H'00
H'FF6A
General register A0 (high)
GRA0H
R/W
H'FF
H'FF6B
General register A0 (low)
GRA0L
R/W
H'FF
H'FF6C
General register B0 (high)
GRB0H
R/W
H'FF
H'FF6D
General register B0 (low)
GRB0L
R/W
H'FF
H'FF6E
Timer control register 1
TCR1
R/W
H'80
H'FF6F
Timer I/O control register 1
TIOR1
R/W
H'88
H'FF70
Timer interrupt enable register 1
TIER1
R/W
H'FF71
R/(W)*
H'F8
H'F8
2
Timer status register 1
TSR1
H'F8
H'FF72
Timer counter 1 (high)
TCNT1H
R/W
H'00
H'FF73
Timer counter 1 (low)
TCNT1L
R/W
H'00
H'FF74
General register A1 (high)
GRA1H
R/W
H'FF
H'FF75
General register A1 (low)
GRA1L
R/W
H'FF
H'FF76
General register B1 (high)
GRB1H
R/W
H'FF
H'FF77
General register B1 (low)
GRB1L
R/W
H'FF
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Section 8 16-Bit Integrated Timer Unit (ITU)
Name
Abbreviation
R/W
Initial
Value
H'FF78
Timer control register 2
TCR2
R/W
H'80
H'FF79
Timer I/O control register 2
TIOR2
R/W
H'88
Channel
Address*
2
3
1
H'FF7A
Timer interrupt enable register 2
TIER2
R/W
H'FF7B
Timer status register 2
TSR2
R/(W)*
H'F8
H'FF7C
Timer counter 2 (high)
TCNT2H
R/W
H'00
H'FF7D
Timer counter 2 (low)
TCNT2L
R/W
H'00
H'FF7E
General register A2 (high)
GRA2H
R/W
H'FF
H'FF7F
General register A2 (low)
GRA2L
R/W
H'FF
H'FF80
General register B2 (high)
GRB2H
R/W
H'FF
H'FF81
General register B2 (low)
GRB2L
R/W
H'FF
H'FF82
Timer control register 3
TCR3
R/W
H'80
H'FF83
Timer I/O control register 3
TIOR3
R/W
H'88
H'FF84
Timer interrupt enable register 3
TIER3
R/W
2
H'F8
H'F8
2
H'FF85
Timer status register 3
TSR3
R/(W)*
H'FF86
Timer counter 3 (high)
TCNT3H
R/W
H'00
H'FF87
Timer counter 3 (low)
TCNT3L
R/W
H'00
H'FF88
General register A3 (high)
GRA3H
R/W
H'FF
H'FF89
General register A3 (low)
GRA3L
R/W
H'FF
H'FF8A
General register B3 (high)
GRB3H
R/W
H'FF
H'FF8B
General register B3 (low)
GRB3L
R/W
H'FF
H'FF8C
Buffer register A3 (high)
BRA3H
R/W
H'FF
H'FF8D
Buffer register A3 (low)
BRA3L
R/W
H'FF
H'FF8E
Buffer register B3 (high)
BRB3H
R/W
H'FF
H'FF8F
Buffer register B3 (low)
BRB3L
R/W
H'FF
Rev.3.00 Mar. 26, 2007 Page 202 of 682
REJ09B0353-0300
H'F8
Section 8 16-Bit Integrated Timer Unit (ITU)
Name
Abbreviation
R/W
Initial
Value
H'FF92
Timer control register 4
TCR4
R/W
H'80
H'FF93
Timer I/O control register 4
TIOR4
R/W
H'88
Channel
Address*
4
1
H'FF94
Timer interrupt enable register 4
TIER4
R/W
H'FF95
Timer status register 4
TSR4
R/(W)*
H'F8
H'FF96
Timer counter 4 (high)
TCNT4H
R/W
H'00
H'FF97
Timer counter 4 (low)
TCNT4L
R/W
H'00
H'FF98
General register A4 (high)
GRA4H
R/W
H'FF
H'FF99
General register A4 (low)
GRA4L
R/W
H'FF
H'FF9A
General register B4 (high)
GRB4H
R/W
H'FF
H'FF9B
General register B4 (low)
GRB4L
R/W
H'FF
H'FF9C
Buffer register A4 (high)
BRA4H
R/W
H'FF
H'FF9D
Buffer register A4 (low)
BRA4L
R/W
H'FF
H'FF9E
Buffer register B4 (high)
BRB4H
R/W
H'FF
H'FF9F
Buffer register B4 (low)
BRB4L
R/W
H'FF
2
H'F8
Notes: 1. The lower 16 bits of the address are indicated.
2. Only 0 can be written, to clear flags.
Rev.3.00 Mar. 26, 2007 Page 203 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2
Register Descriptions
8.2.1
Timer Start Register (TSTR)
TSTR is an 8-bit readable/writable register that starts and stops the timer counter (TCNT) in
channels 0 to 4.
Bit
7
6
5
4
3
2
1
0
—
—
—
STR4
STR3
STR2
STR1
STR0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Reserved bits
Counter start 4 to 0
These bits start and
stop TCNT4 to TCNT0
TSTR is initialized to H'E0 by a reset and in standby mode.
Bits 7 to 5—Reserved: These bits cannot be modified and are always read as 1.
Bit 4—Counter Start 4 (STR4): Starts and stops timer counter 4 (TCNT4).
Bit4
STR4
Description
0
TCNT4 is halted
1
TCNT4 is counting
(Initial value)
Bit 3—Counter Start 3 (STR3): Starts and stops timer counter 3 (TCNT3).
Bit 3
STR3
Description
0
TCNT3 is halted
1
TCNT3 is counting
Rev.3.00 Mar. 26, 2007 Page 204 of 682
REJ09B0353-0300
(Initial value)
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 2—Counter Start 2 (STR2): Starts and stops timer counter 2 (TCNT2).
Bit 2
STR2
Description
0
TCNT2 is halted
1
TCNT2 is counting
(Initial value)
Bit 1—Counter Start 1 (STR1): Starts and stops timer counter 1 (TCNT1).
Bit 1
STR1
Description
0
TCNT1 is halted
1
TCNT1 is counting
(Initial value)
Bit 0—Counter Start 0 (STR0): Starts and stops timer counter 0 (TCNT0).
Bit 0
STR0
Description
0
TCNT0 is halted
1
TCNT0 is counting
(Initial value)
Rev.3.00 Mar. 26, 2007 Page 205 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.2
Timer Synchro Register (TSNC)
TSNC is an 8-bit readable/writable register that selects whether channels 0 to 4 operate
independently or synchronously. Channels are synchronized by setting the corresponding bits to 1.
Bit
7
6
5
4
3
2
1
0
—
—
—
SYNC4
SYNC3
SYNC2
SYNC1
SYNC0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Reserved bits
Timer sync 4 to 0
These bits synchronize
channels 4 to 0
TSNC is initialized to H'E0 by a reset and in standby mode.
Bits 7 to 5—Reserved: These bits cannot be modified and are always read as 1.
Bit 4—Timer Sync 4 (SYNC4): Selects whether channel 4 operates independently or
synchronously.
Bit 4
SYNC4
Description
0
Channel 4's timer counter (TCNT4) operates independently TCNT4 is preset and
cleared independently of other channels
(Initial value)
1
Channel 4 operates synchronously
TCNT4 can be synchronously preset and cleared
Bit 3—Timer Sync 3 (SYNC3): Selects whether channel 3 operates independently or
synchronously.
Bit 3
SYNC3
Description
0
Channel 3's timer counter (TCNT3) operates independently TCNT3 is preset and
cleared independently of other channels
(Initial value)
1
Channel 3 operates synchronously
TCNT3 can be synchronously preset and cleared
Rev.3.00 Mar. 26, 2007 Page 206 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 2—Timer Sync 2 (SYNC2): Selects whether channel 2 operates independently or
synchronously.
Bit 2
SYNC2
Description
0
Channel 2's timer counter (TCNT2) operates independently TCNT2 is preset and
cleared independently of other channels
(Initial value)
1
Channel 2 operates synchronously
TCNT2 can be synchronously preset and cleared
Bit 1—Timer Sync 1 (SYNC1): Selects whether channel 1 operates independently or
synchronously.
Bit 1
SYNC1
Description
0
Channel 1's timer counter (TCNT1) operates independently TCNT1 is preset and
cleared independently of other channels
(Initial value)
1
Channel 1 operates synchronously
TCNT1 can be synchronously preset and cleared
Bit 0—Timer Sync 0 (SYNC0): Selects whether channel 0 operates independently or
synchronously.
Bit 0
SYNC0
Description
0
Channel 0's timer counter (TCNT0) operates independently TCNT0 is preset and
cleared independently of other channels
(Initial value)
1
Channel 0 operates synchronously
TCNT0 can be synchronously preset and cleared
Rev.3.00 Mar. 26, 2007 Page 207 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.3
Timer Mode Register (TMDR)
TMDR is an 8-bit readable/writable register that selects PWM mode for channels 0 to 4. It also
selects phase counting mode and the overflow flag (OVF) setting conditions for channel 2.
Bit
7
6
5
4
3
2
1
0
—
MDF
FDIR
PWM4
PWM3
PWM2
PWM1
PWM0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PWM mode 4 to 0
These bits select PWM
mode for channels 4 to 0
Flag direction
Selects the setting condition for the overflow
flag (OVF) in timer status register 2 (TSR2)
Phase counting mode flag
Selects phase counting mode for channel 2
Reserved bit
TMDR is initialized to H'80 by a reset and in standby mode.
Bit 7—Reserved: This bit cannot be modified and is always read as 1.
Bit 6—Phase Counting Mode Flag (MDF): Selects whether channel 2 operates normally or in
phase counting mode.
Bit 6
MDF
Description
0
Channel 2 operates normally
1
Channel 2 operates in phase counting mode
(Initial value)
When MDF is set to 1 to select phase counting mode, timer counter 2 (TCNT2) operates as an
up/down-counter and pins TCLKA and TCLKB become counter clock input pins. TCNT2 counts
both rising and falling edges of TCLKA and TCLKB, and counts up or down as follows.
Counting Direction
Down-Counting
TCLKA pin
TCLKB pin
High
Low
Rev.3.00 Mar. 26, 2007 Page 208 of 682
REJ09B0353-0300
Up-Counting
Low
High
Low
High
High
Low
Section 8 16-Bit Integrated Timer Unit (ITU)
In phase counting mode channel 2 operates as above regardless of the external clock edges
selected by bits CKEG1 and CKEG0 and the clock source selected by bits TPSC2 to TPSC0 in
timer control register 2 (TCR2). Phase counting mode takes precedence over these settings.
The counter clearing condition selected by the CCLR1 and CCLR0 bits in TCR2 and the compare
match/input capture settings and interrupt functions of timer I/O control register 2 (TIOR2), timer
interrupt enable register 2 (TIER2), and timer status register 2 (TSR2) remain effective in phase
counting mode.
Bit 5—Flag Direction (FDIR): Designates the setting condition for the overflow flag (OVF) in
timer status register 2 (TSR2). The FDIR designation is valid in all modes in channel 2.
Bit 5
FDIR
Description
0
OVF is set to 1 in TSR2 when TCNT2 overflows or underflows
1
OVF is set to 1 in TSR2 when TCNT2 overflows
(Initial value)
Bit 4—PWM Mode 4 (PWM4): Selects whether channel 4 operates normally or in PWM mode.
Bit 4
PWM4
Description
0
Channel 4 operates normally
1
Channel 4 operates in PWM mode
(Initial value)
When bit PWM4 is set to 1 to select PWM mode, pin TIOCA4 becomes a PWM output pin. The
output goes to 1 at compare match with general register A4 (GRA4), and to 0 at compare match
with general register B4 (GRB4).
If complementary PWM mode or reset-synchronized PWM mode is selected by bits CMD1 and
CMD0 in the timer function control register (TFCR), the CMD1 and CMD0 setting takes
precedence and the PWM4 setting is ignored.
Bit 3—PWM Mode 3 (PWM3): Selects whether channel 3 operates normally or in PWM mode.
Bit 3
PWM3
Description
0
Channel 3 operates normally
1
Channel 3 operates in PWM mode
(Initial value)
Rev.3.00 Mar. 26, 2007 Page 209 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
When bit PWM3 is set to 1 to select PWM mode, pin TIOCA3 becomes a PWM output pin. The
output goes to 1 at compare match with general register A3 (GRA3), and to 0 at compare match
with general register B3 (GRB3).
If complementary PWM mode or reset-synchronized PWM mode is selected by bits CMD1 and
CMD0 in the timer function control register (TFCR), the CMD1 and CMD0 setting takes
precedence and the PWM3 setting is ignored.
Bit 2—PWM Mode 2 (PWM2): Selects whether channel 2 operates normally or in PWM mode.
Bit 2
PWM2
Description
0
Channel 2 operates normally
1
Channel 2 operates in PWM mode
(Initial value)
When bit PWM2 is set to 1 to select PWM mode, pin TIOCA2 becomes a PWM output pin. The
output goes to 1 at compare match with general register A2 (GRA2), and to 0 at compare match
with general register B2 (GRB2).
Bit 1—PWM Mode 1 (PWM1): Selects whether channel 1 operates normally or in PWM mode.
Bit 1
PWM1
Description
0
Channel 1 operates normally
1
Channel 1 operates in PWM mode
(Initial value)
When bit PWM1 is set to 1 to select PWM mode, pin TIOCA1 becomes a PWM output pin. The
output goes to 1 at compare match with general register A1 (GRA1), and to 0 at compare match
with general register B1 (GRB1).
Bit 0—PWM Mode 0 (PWM0): Selects whether channel 0 operates normally or in PWM mode.
Bit 0
PWM0
Description
0
Channel 0 operates normally
1
Channel 0 operates in PWM mode
(Initial value)
When bit PWM0 is set to 1 to select PWM mode, pin TIOCA0 becomes a PWM output pin. The
output goes to 1 at compare match with general register A0 (GRA0), and to 0 at compare match
with general register B0 (GRB0).
Rev.3.00 Mar. 26, 2007 Page 210 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.4
Timer Function Control Register (TFCR)
TFCR is an 8-bit readable/writable register that selects complementary PWM mode, resetsynchronized PWM mode, and buffering for channels 3 and 4.
Bit
7
6
5
4
3
2
1
0
—
—
CMD1
CMD0
BFB4
BFA4
BFB3
BFA3
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Combination mode 1/0
These bits select complementary
PWM mode or reset-synchronized
PWM mode for channels 3 and 4
Buffer mode B4 and A4
These bits select buffering of
general registers (GRB4 and
GRA4) by buffer registers
(BRB4 and BRA4) in channel 4
Buffer mode B3 and A3
These bits select buffering
of general registers (GRB3
and GRA3) by buffer
registers (BRB3 and BRA3)
in channel 3
TFCR is initialized to H'C0 by a reset and in standby mode.
Bits 7 and 6—Reserved: These bits cannot be modified and are always read as 1.
Rev.3.00 Mar. 26, 2007 Page 211 of 682
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Section 8 16-Bit Integrated Timer Unit (ITU)
Bits 5 and 4—Combination Mode 1 and 0 (CMD1, CMD0): These bits select whether channels
3 and 4 operate in normal mode, complementary PWM mode, or reset-synchronized PWM mode.
Bit 5
CMD1
Bit 4
CMD0
Description
0
0
Channels 3 and 4 operate normally
(Initial value)
1
1
0
Channels 3 and 4 operate together in complementary PWM mode
1
Channels 3 and 4 operate together in reset-synchronized PWM mode
Before selecting reset-synchronized PWM mode or complementary PWM mode, halt the timer
counter or counters that will be used in these modes.
When these bits select complementary PWM mode or reset-synchronized PWM mode, they take
precedence over the setting of the PWM mode bits (PWM4 and PWM3) in TMDR. Settings of
timer sync bits SYNC4 and SYNC3 in the timer synchro register (TSNC) are valid in
complementary PWM mode and reset-synchronized PWM mode, however. When complementary
PWM mode is selected, channels 3 and 4 must not be synchronized (do not set bits SYNC3 and
SYNC4 both to 1 in TSNC).
Bit 3—Buffer Mode B4 (BFB4): Selects whether GRB4 operates normally in channel 4, or
whether GRB4 is buffered by BRB4.
Bit 3
BFB4
Description
0
GRB4 operates normally
1
GRB4 is buffered by BRB4
(Initial value)
Bit 2—Buffer Mode A4 (BFA4): Selects whether GRA4 operates normally in channel 4, or
whether GRA4 is buffered by BRA4.
Bit 2
BFA4
Description
0
GRA4 operates normally
1
GRA4 is buffered by BRA4
Rev.3.00 Mar. 26, 2007 Page 212 of 682
REJ09B0353-0300
(Initial value)
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 1—Buffer Mode B3 (BFB3): Selects whether GRB3 operates normally in channel 3, or
whether GRB3 is buffered by BRB3.
Bit 1
BFB3
Description
0
GRB3 operates normally
1
GRB3 is buffered by BRB3
(Initial value)
Bit 0—Buffer Mode A3 (BFA3): Selects whether GRA3 operates normally in channel 3, or
whether GRA3 is buffered by BRA3.
Bit 0
BFA3
Description
0
GRA3 operates normally
1
GRA3 is buffered by BRA3
(Initial value)
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REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.5
Timer Output Master Enable Register (TOER)
TOER is an 8-bit readable/writable register that enables or disables output settings for channels 3
and 4.
Bit
7
6
5
4
3
2
1
0
—
—
EXB4
EXA4
EB3
EB4
EA4
EA3
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Master enable TOCXA4, TOCXB4
These bits enable or disable output
settings for pins TOCXA4 and TOCXB4
Master enable TIOCA3, TIOCB3 , TIOCA4, TIOCB4
These bits enable or disable output settings for pins
TIOCA3, TIOCB3 , TIOCA4, and TIOCB4
TOER is initialized to H'FF by a reset and in standby mode.
Bits 7 and 6—Reserved: These bits cannot be modified and are always read as 1.
Bit 5—Master Enable TOCXB4 (EXB4): Enables or disables ITU output at pin TOCXB4.
Bit 5
EXB4
Description
0
TOCXB4 output is disabled regardless of TFCR settings (TOCXB4 operates as a generic
input/output pin). If XTGD = 0, EXB4 is cleared to 0 when input capture A occurs in
channel 1.
1
TOCXB4 is enabled for output according to TFCR settings
(Initial value)
Bit 4—Master Enable TOCXA4 (EXA4): Enables or disables ITU output at pin TOCXA4.
Bit 4
EXA4
0
Description
TOCXA4 output is disabled regardless of TFCR settings (TOCXA4 operates as a generic
input/output pin).
If XTGD = 0, EXA4 is cleared to 0 when input capture A occurs in channel 1.
1
TOCXA4 is enabled for output according to TFCR settings
Rev.3.00 Mar. 26, 2007 Page 214 of 682
REJ09B0353-0300
(Initial value)
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 3—Master Enable TIOCB3 (EB3): Enables or disables ITU output at pin TIOCB3.
Bit 3
EB3
0
Description
TIOCB3 output is disabled regardless of TIOR3 and TFCR settings (TIOCB3 operates as
a generic input/output pin).
If XTGD = 0, EB3 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCB3 is enabled for output according to TIOR3 and TFCR settings
(Initial value)
Bit 2—Master Enable TIOCB4 (EB4): Enables or disables ITU output at pin TIOCB4.
Bit 2
EB4
0
Description
TIOCB4 output is disabled regardless of TIOR4 and TFCR settings (TIOCB4 operates as
a generic input/output pin).
If XTGD = 0, EB4 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCB4 is enabled for output according to TIOR4 and TFCR settings
(Initial value)
Bit 1—Master Enable TIOCA4 (EA4): Enables or disables ITU output at pin TIOCA4.
Bit 1
EA4
0
Description
TIOCA4 output is disabled regardless of TIOR4, TMDR, and TFCR settings (TIOCA4
operates as a generic input/output pin).
If XTGD = 0, EA4 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCA4 is enabled for output according to TIOR4, TMDR, and TFCR settings
(Initial value)
Bit 0—Master Enable TIOCA3 (EA3): Enables or disables ITU output at pin TIOCA3.
Bit 0
EA3
0
Description
TIOCA3 output is disabled regardless of TIOR3, TMDR, and TFCR settings (TIOCA3
operates as a generic input/output pin).
If XTGD = 0, EA3 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCA3 is enabled for output according to TIOR3, TMDR, and TFCR settings
(Initial value)
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REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.6
Timer Output Control Register (TOCR)
TOCR is an 8-bit readable/writable register that selects externally triggered disabling of output in
complementary PWM mode and reset-synchronized PWM mode, and inverts the output levels.
Bit
7
6
5
4
3
2
1
0
—
—
—
XTGD
—
—
OLS4
OLS3
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
R/W
—
—
R/W
R/W
Reserved bits
Output level select 3, 4
These bits select output
levels in complementary
PWM mode and resetsynchronized PWM mode
Reserved bits
External trigger disable
Selects externally triggered disabling of output in
complementary PWM mode and reset-synchronized
PWM mode
The settings of the XTGD, OLS4, and OLS3 bits are valid only in complementary PWM mode
and reset-synchronized PWM mode. These settings do not affect other modes.
TOCR is initialized to H'FF by a reset and in standby mode.
Bits 7 to 5—Reserved: These bits cannot be modified and are always read as 1.
Bit 4—External Trigger Disable (XTGD): Selects externally triggered disabling of ITU output
in complementary PWM mode and reset-synchronized PWM mode.
Bit 4
XTGD
0
Description
Input capture A in channel 1 is used as an external trigger signal in complementary
PWM mode and reset-synchronized PWM mode.
When an external trigger occurs, bits 5 to 0 in the timer output master enable register
(TOER) are cleared to 0, disabling ITU output.
1
External triggering is disabled
Rev.3.00 Mar. 26, 2007 Page 216 of 682
REJ09B0353-0300
(Initial value)
Section 8 16-Bit Integrated Timer Unit (ITU)
Bits 3 and 2—Reserved: These bits cannot be modified and are always read as 1.
Bit 1—Output Level Select 4 (OLS4): Selects output levels in complementary PWM mode and
reset-synchronized PWM mode.
Bit 1
OLS4
Description
0
TIOCA3, TIOCA4, and TIOCB4 pin outputs are inverted
1
TIOCA3, TIOCA4, and TIOCB4 pin outputs are not inverted
(Initial value)
Bit 0—Output Level Select 3 (OLS3): Selects output levels in complementary PWM mode and
reset-synchronized PWM mode.
Bit 0
OLS3
Description
0
TIOCB3, TOCXA4, and TOCXB4 pin outputs are inverted
1
TIOCB3, TOCXA4, and TOCXB4 pin outputs are not inverted
(Initial value)
Rev.3.00 Mar. 26, 2007 Page 217 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.7
Timer Counters (TCNT)
TCNT is a 16-bit counter. The ITU has five TCNTs, one for each channel.
Channel
Abbreviation
Function
0
TCNT0
Up-counter
1
TCNT1
2
TCNT2
Phase counting mode: up/down-counter
Other modes: up-counter
3
TCNT3
4
TCNT4
Complementary PWM mode: up/down-counter
Other modes: up-counter
Bit
Initial value
Read/Write
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Each TCNT is a 16-bit readable/writable register that counts pulse inputs from a clock source. The
clock source is selected by bits TPSC2 to TPSC0 in the timer control register (TCR).
TCNT0 and TCNT1 are up-counters. TCNT2 is an up/down-counter in phase counting mode and
an up-counter in other modes. TCNT3 and TCNT4 are up/down-counters in complementary PWM
mode and up-counters in other modes.
TCNT can be cleared to H'0000 by compare match with general register A or B (GRA or GRB) or
by input capture to GRA or GRB (counter clearing function) in the same channel.
When TCNT overflows (changes from H'FFFF to H'0000), the overflow flag (OVF) is set to 1 in
the timer status register (TSR) of the corresponding channel.
When TCNT underflows (changes from H'0000 to H'FFFF), the overflow flag (OVF) is set to 1 in
TSR of the corresponding channel.
The TCNTs are linked to the CPU by an internal 16-bit bus and can be written or read by either
word access or byte access.
Each TCNT is initialized to H'0000 by a reset and in standby mode.
Rev.3.00 Mar. 26, 2007 Page 218 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.8
General Registers (GRA, GRB)
The general registers are 16-bit registers. The ITU has 10 general registers, two in each channel.
Channel
Abbreviation
Function
0
GRA0, GRB0
Output compare/input capture register
1
GRA1, GRB1
2
GRA2, GRB2
3
GRA3, GRB3
4
GRA4, GRB4
Bit
Initial value
Read/Write
Output compare/input capture register; can be by buffer registers
BRA and BRB
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
A general register is a 16-bit readable/writable register that can function as either an output
compare register or an input capture register. The function is selected by settings in the timer I/O
control register (TIOR).
When a general register is used as an output compare register, its value is constantly compared
with the TCNT value. When the two values match (compare match), the IMFA or IMFB flag is set
to 1 in the timer status register (TSR). Compare match output can be selected in TIOR.
When a general register is used as an input capture register, rising edges, falling edges, or both
edges of an external input capture signal are detected and the current TCNT value is stored in the
general register. The corresponding IMFA or IMFB flag in TSR is set to 1 at the same time. The
valid edge or edges of the input capture signal are selected in TIOR.
TIOR settings are ignored in PWM mode, complementary PWM mode, and reset-synchronized
PWM mode.
General registers are linked to the CPU by an internal 16-bit bus and can be written or read by
either word access or byte access.
General registers are initialized to the output compare function (with no output signal) by a reset
and in standby mode. The initial value is H'FFFF.
Rev.3.00 Mar. 26, 2007 Page 219 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.9
Buffer Registers (BRA, BRB)
The buffer registers are 16-bit registers. The ITU has four buffer registers, two each in channels 3
and 4.
Channel
Abbreviation
Function
3
BRA3, BRB3
Used for buffering
4
BRA4, BRB4
•
When the corresponding GRA or GRB functions as an output
compare register, BRA or BRB can function as an output compare
buffer register: the BRA or BRB value is automatically transferred
to GRA or GRB at compare match
•
When the corresponding GRA or GRB functions as an input
capture register, BRA or BRB can function as an input capture
buffer register: the GRA or GRB value is automatically transferred
to BRA or BRB at input capture
Bit
Initial value
Read/Write
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
A buffer register is a 16-bit readable/writable register that is used when buffering is selected.
Buffering can be selected independently by bits BFB4, BFA4, BFB3, and BFA3 in TFCR.
The buffer register and general register operate as a pair. When the general register functions as an
output compare register, the buffer register functions as an output compare buffer register. When
the general register functions as an input capture register, the buffer register functions as an input
capture buffer register.
The buffer registers are linked to the CPU by an internal 16-bit bus and can be written or read by
either word or byte access.
Buffer registers are initialized to H'FFFF by a reset and in standby mode.
Rev.3.00 Mar. 26, 2007 Page 220 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.10
Timer Control Registers (TCR)
TCR is an 8-bit register. The ITU has five TCRs, one in each channel.
Channel
Abbreviation
Function
0
TCR0
1
TCR1
2
TCR2
TCR controls the timer counter. The TCRs in all channels are
functionally identical. When phase counting mode is selected in
channel 2, the settings of bits CKEG1 and CKEG0 and TPSC2 to
TPSC0 in TCR2 are ignored.
3
TCR3
4
TCR4
Bit
7
6
5
—
CCLR1
CCLR0
Initial value
1
0
0
0
Read/Write
—
R/W
R/W
R/W
4
3
2
1
0
TPSC2
TPSC1
TPSC0
0
0
0
0
R/W
R/W
R/W
R/W
CKEG1 CKEG0
Timer prescaler 2 to 0
These bits select the
counter clock
Clock edge 1/0
These bits select external clock edges
Counter clear 1/0
These bits select the counter clear source
Reserved bit
Each TCR is an 8-bit readable/writable register that selects the timer counter clock source, selects
the edge or edges of external clock sources, and selects how the counter is cleared.
TCR is initialized to H'80 by a reset and in standby mode.
Bit 7—Reserved: This bit cannot be modified and is always read as 1.
Bits 6 and 5—Counter Clear 1/0 (CCLR1, CCLR0): These bits select how TCNT is cleared.
Rev.3.00 Mar. 26, 2007 Page 221 of 682
REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 6
CCLR1
Bit 5
CCLR0
Description
0
0
TCNT is not cleared
1
(Initial value)
1
TCNT is cleared by GRA compare match or input capture*
1
0
TCNT is cleared by GRB compare match or input capture*
1
1
Synchronous clear: TCNT is cleared in synchronization with other
2
synchronized timers*
Notes: 1. TCNT is cleared by compare match when the general register functions as an output
compare match register, and by input capture when the general register functions as an
input capture register.
2. Selected in the timer synchro register (TSNC).
Bits 4 and 3—Clock Edge 1/0 (CKEG1, CKEG0): These bits select external clock input edges
when an external clock source is used.
Bit 4
CKEG1
Bit 3
CKEG0
Description
0
0
Count rising edges
1
Count falling edges
—
Count both edges
1
(Initial value)
When channel 2 is set to phase counting mode, bits CKEG1 and CKEG0 in TCR2 are ignored.
Phase counting takes precedence.
Bits 2 to 0—Timer Prescaler 2 to 0 (TPSC2 to TPSC0): These bits select the counter clock
source.
Bit 2
TPSC2
Bit 1
TPSC1
Bit 0
TPSC0
Function
0
0
0
Internal clock: φ
1
Internal clock: φ/2
0
Internal clock: φ/4
1
Internal clock: φ/8
0
External clock A: TCLKA input
1
External clock B: TCLKB input
0
External clock C: TCLKC input
1
External clock D: TCLKD input
1
1
0
1
Rev.3.00 Mar. 26, 2007 Page 222 of 682
REJ09B0353-0300
(Initial value)
Section 8 16-Bit Integrated Timer Unit (ITU)
When bit TPSC2 is cleared to 0 an internal clock source is selected, and the timer counts only
falling edges. When bit TPSC2 is set to 1 an external clock source is selected, and the timer counts
the edge or edges selected by bits CKEG1 and CKEG0.
When channel 2 is set to phase counting mode (MDF = 1 in TMDR), the settings of bits TPSC2 to
TPSC0 in TCR2 are ignored. Phase counting takes precedence.
8.2.11
Timer I/O Control Register (TIOR)
TIOR is an 8-bit register. The ITU has five TIORs, one in each channel.
Channel
Abbreviation
Function
0
TIOR0
1
TIOR1
2
TIOR2
TIOR controls the general registers. Some functions differ in PWM
mode. TIOR3 and TIOR4 settings are ignored when complementary
PWM mode or reset-synchronized PWM mode is selected in
channels 3 and 4.
3
TIOR3
4
TIOR4
Bit
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
I/O control A2 to A0
These bits select GRA
functions
Reserved bit
I/O control B2 to B0
These bits select GRB functions
Reserved bit
Each TIOR is an 8-bit readable/writable register that selects the output compare or input capture
function for GRA and GRB, and specifies the functions of the TIOCA and TIOCB pins. If the
output compare function is selected, TIOR also selects the type of output. If input capture is
selected, TIOR also selects the edge or edges of the input capture signal.
TIOR is initialized to H'88 by a reset and in standby mode.
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REJ09B0353-0300
Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 7—Reserved: This bit cannot be modified and is always read as 1.
Bits 6 to 4—I/O Control B2 to B0 (IOB2 to IOB0): These bits select the GRB function.
Bit 6
IOB2
Bit 5
IOB1
Bit 4
IOB0
0
0
0
No output at compare match
(Initial value)
0 output at GRB compare match*
1
0
1 output at GRB compare match*
1
1
Output toggles at GRB compare match
1 2
(1 output in channel 2)* *
1
1
1
0
0
1
1
Function
GRB is an output
compare register
GRB is an input
capture register
0
GRB captures rising edge of input
GRB captures falling edge of input
GRB captures both edges of input
1
Notes: 1. After a reset, the output is 0 until the first compare match.
2. Channel 2 output cannot be toggled by compare match. This setting selects 1 output
instead.
Bit 3—Reserved: This bit cannot be modified and is always read as 1.
Bits 2 to 0—I/O Control A2 to A0 (IOA2 to IOA0): These bits select the GRA function.
Bit 2
IOA2
Bit 1
IOA1
Bit 0
IOA0
0
0
0
No output at compare match
(Initial value)
0 output at GRA compare match*
1
0
1 output at GRA compare match*
1
1
Output toggles at GRA compare match
1 2
(1 output in channel 2)* *
1
1
1
0
0
1
1
Function
GRA is an output
compare register
GRA is an input
capture register
0
GRA captures rising edge of input
GRA captures falling edge of input
GRA captures both edges of input
1
Notes: 1. After a reset, the output is 0 until the first compare match.
2. Channel 2 output cannot be toggled by compare match. This setting selects 1 output
instead.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.12
Timer Status Register (TSR)
TSR is an 8-bit register. The ITU has five TSRs, one in each channel.
Channel
Abbreviation
Function
0
TSR0
Indicates input capture, compare match, and overflow status
1
TSR1
2
TSR2
3
TSR3
4
TSR4
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Reserved bits
Overflow flag
Status flag indicating
overflow or underflow
Input capture/compare match flag B
Status flag indicating GRB compare
match or input capture
Input capture/compare match flag A
Status flag indicating GRA compare
match or input capture
Note: * Only 0 can be written to clear the flag.
Each TSR is an 8-bit readable/writable register containing flags that indicate TCNT overflow or
underflow and GRA or GRB compare match or input capture. These flags are interrupt sources
and generate CPU interrupts if enabled by corresponding bits in the timer interrupt enable register
(TIER).
TSR is initialized to H'F8 by a reset and in standby mode.
Bits 7 to 3—Reserved: These bits cannot be modified and are always read as 1.
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Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 2—Overflow Flag (OVF): This status flag indicates TCNT overflow or underflow.
Bit 2
OVF
Description
0
[Clearing condition]
(Initial value)
Read OVF when OVF = 1, then write 0 in OVF
1
[Setting condition]
TCNT overflowed from H'FFFF to H'0000, or underflowed from H'0000 to H'FFFF*
Notes: *
TCNT underflow occurs when TCNT operates as an up/down-counter. Underflow
occurs only under the following conditions:
1. Channel 2 operates in phase counting mode (MDF = 1 in TMDR)
2. Channels 3 and 4 operate in complementary PWM mode (CMD1 = 1 and CMD0 = 0
in TFCR)
Bit 1—Input Capture/Compare Match Flag B (IMFB): This status flag indicates GRB
compare match or input capture events.
Bit 1
IMFB
Description
0
[Clearing condition]
Read IMFB when IMFB = 1, then write 0 in IMFB
1
(Initial value)
[Setting conditions]
•
TCNT = GRB when GRB functions as a compare match register.
•
TCNT value is transferred to GRB by an input capture signal, when GRB functions
as an input capture register.
Bit 0—Input Capture/Compare Match Flag A (IMFA): This status flag indicates GRA
compare match or input capture events.
Bit 0
IMFA
Description
0
[Clearing condition]
Read IMFA when IMFA = 1, then write 0 in IMFA.
1
(Initial value)
[Setting conditions]
•
TCNT = GRA when GRA functions as a compare match register.
•
TCNT value is transferred to GRA by an input capture signal, when GRA functions
as an input capture register.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.2.13
Timer Interrupt Enable Register (TIER)
TIER is an 8-bit register. The ITU has five TIERs, one in each channel.
Channel
Abbreviation
Function
0
TIER0
Enables or disables interrupt requests.
1
TIER1
2
TIER2
3
TIER3
4
TIER4
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Reserved bits
Overflow interrupt enable
Enables or disables OVF
interrupts
Input capture/compare match
interrupt enable B
Enables or disables IMFB interrupts
Input capture/compare match
interrupt enable A
Enables or disables IMFA
interrupts
Each TIER is an 8-bit readable/writable register that enables and disables overflow interrupt
requests and general register compare match and input capture interrupt requests.
TIER is initialized to H'F8 by a reset and in standby mode.
Bits 7 to 3—Reserved: These bits cannot be modified and are always read as 1.
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Section 8 16-Bit Integrated Timer Unit (ITU)
Bit 2—Overflow Interrupt Enable (OVIE): Enables or disables the interrupt requested by the
overflow flag (OVF) in TSR when OVF is set to 1.
Bit 2
OVIE
Description
0
OVI interrupt requested by OVF is disabled
1
OVI interrupt requested by OVF is enabled
(Initial value)
Bit 1—Input Capture/Compare Match Interrupt Enable B (IMIEB): Enables or disables the
interrupt requested by the IMFB flag in TSR when IMFB is set to 1.
Bit 1
IMIEB
Description
0
IMIB interrupt requested by IMFB is disabled
1
IMIB interrupt requested by IMFB is enabled
(Initial value)
Bit 0—Input Capture/Compare Match Interrupt Enable A (IMIEA): Enables or disables the
interrupt requested by the IMFA flag in TSR when IMFA is set to 1.
Bit 0
IMIEA
Description
0
IMIA interrupt requested by IMFA is disabled
1
IMIA interrupt requested by IMFA is enabled
8.3
CPU Interface
8.3.1
16-Bit Accessible Registers
(Initial value)
The timer counters (TCNTs), general registers A and B (GRAs and GRBs), and buffer registers A
and B (BRAs and BRBs) are 16-bit registers, and are linked to the CPU by an internal 16-bit data
bus. These registers can be written or read a word at a time, or a byte at a time.
Figures 8.6 and 8.7 show examples of word access to a timer counter (TCNT). Figures 8.8, 8.9,
8.10, and 8.11 show examples of byte access to TCNTH and TCNTL.
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Section 8 16-Bit Integrated Timer Unit (ITU)
Internal data bus
H
CPU
H
L
Bus interface
L
TCNTH
Module
data bus
TCNTL
Figure 8.6 Access to Timer Counter (CPU Writes to TCNT, Word)
Internal data bus
H
CPU
H
L
Bus interface
L
TCNTH
Module
data bus
TCNTL
Figure 8.7 Access to Timer Counter (CPU Reads TCNT, Word)
Internal data bus
H
CPU
L
H
Bus interface
L
TCNTH
Module
data bus
TCNTL
Figure 8.8 Access to Timer Counter (CPU Writes to TCNT, Upper Byte)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Internal data bus
H
CPU
L
H
Bus interface
L
TCNTH
Module
data bus
TCNTL
Figure 8.9 Access to Timer Counter (CPU Writes to TCNT, Lower Byte)
Internal data bus
H
CPU
L
H
Bus interface
L
TCNTH
Module
data bus
TCNTL
Figure 8.10 Access to Timer Counter (CPU Reads TCNT, Upper Byte)
Internal data bus
H
CPU
L
H
Bus interface
L
TCNTH
TCNTL
Figure 8.11 Access to Timer Counter (CPU Reads TCNT, Lower Byte)
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Module
data bus
Section 8 16-Bit Integrated Timer Unit (ITU)
8.3.2
8-Bit Accessible Registers
The registers other than the timer counters, general registers, and buffer registers are 8-bit
registers. These registers are linked to the CPU by an internal 8-bit data bus.
Figures 8.12 and 8.13 show examples of byte read and write access to a TCR.
If a word-size data transfer instruction is executed, two byte transfers are performed.
Internal data bus
H
CPU
L
H
Bus interface
L
Module
data bus
TCR
Figure 8.12 TCR Access (CPU Writes to TCR)
Internal data bus
H
CPU
L
H
Bus interface
L
Module
data bus
TCR
Figure 8.13 TCR Access (CPU Reads TCR)
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4
Operation
8.4.1
Overview
A summary of operations in the various modes is given below.
Normal Operation: Each channel has a timer counter and general registers. The timer counter
counts up, and can operate as a free-running counter, periodic counter, or external event counter.
General registers A and B can be used for input capture or output compare.
Synchronous Operation: The timer counters in designated channels are preset synchronously.
Data written to the timer counter in any one of these channels is simultaneously written to the
timer counters in the other channels as well. The timer counters can also be cleared synchronously
if so designated by the CCLR1 and CCLR0 bits in the TCRs.
PWM Mode: A PWM waveform is output from the TIOCA pin. The output goes to 1 at compare
match A and to 0 at compare match B. The duty cycle can be varied from 0% to 100% depending
on the settings of GRA and GRB. When a channel is set to PWM mode, its GRA and GRB
automatically become output compare registers.
Reset-Synchronized PWM Mode: Channels 3 and 4 are paired for three-phase PWM output with
complementary waveforms. (The three phases are related by having a common transition point.)
When reset-synchronized PWM mode is selected GRA3, GRB3, GRA4, and GRB4 automatically
function as output compare registers, TIOCA3, TIOCB3, TIOCA4, TOCXA4, TIOCB4, and
TOCXB4 function as PWM output pins, and TCNT3 operates as an up-counter. TCNT4 operates
independently, and is not compared with GRA4 or GRB4.
Complementary PWM Mode: Channels 3 and 4 are paired for three-phase PWM output with
non-overlapping complementary waveforms. When complementary PWM mode is selected
GRA3, GRB3, GRA4, and GRB4 automatically function as output compare registers, and
TIOCA3, TIOCB3, TIOCA4, TOCXA4, TIOCB4, and TOCXB4 function as PWM output pins.
TCNT3 and TCNT4 operate as up/down-counters.
Phase Counting Mode: The phase relationship between two clock signals input at TCLKA and
TCLKB is detected and TCNT2 counts up or down accordingly. When phase counting mode is
selected TCLKA and TCLKB become clock input pins and TCNT2 operates as an up/downcounter.
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Section 8 16-Bit Integrated Timer Unit (ITU)
Buffering:
• If the general register is an output compare register
When compare match occurs the buffer register value is transferred to the general register.
• If the general register is an input capture register
When input capture occurs the TCNT value is transferred to the general register, and the
previous general register value is transferred to the buffer register.
• Complementary PWM mode
The buffer register value is transferred to the general register when TCNT3 and TCNT4
change counting direction.
• Reset-synchronized PWM mode
The buffer register value is transferred to the general register at GRA3 compare match.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.2
Basic Functions
Counter Operation
When one of bits STR0 to STR4 is set to 1 in the timer start register (TSTR), the timer counter
(TCNT) in the corresponding channel starts counting. The counting can be free-running or
periodic.
Sample setup procedure for counter: Figure 8.14 shows a sample procedure for setting up a
counter.
Counter setup
Select counter clock
Type of counting?
1
No
Yes
Free-running counting
Periodic counting
Select counter clear source
2
Select output compare
register function
3
Set period
4
Start counter
5
Periodic counter
Start counter
Free-running counter
Figure 8.14 Counter Setup Procedure (Example)
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5
Section 8 16-Bit Integrated Timer Unit (ITU)
1. Set bits TPSC2 to TPSC0 in TCR to select the counter clock source. If an external clock source
is selected, set bits CKEG1 and CKEG0 in TCR to select the desired edge(s) of the external
clock signal.
2. For periodic counting, set CCLR1 and CCLR0 in TCR to have TCNT cleared at GRA compare
match or GRB compare match.
3. Set TIOR to select the output compare function of GRA or GRB, whichever was selected in
step 2.
4. Write the count period in GRA or GRB, whichever was selected in step 2.
5. Set the STR bit to 1 in TSTR to start the timer counter.
Free-running and periodic counter operation: A reset leaves the counters (TCNTs) in ITU
channels 0 to 4 all set as free-running counters. A free-running counter starts counting up when the
corresponding bit in TSTR is set to 1. When the count overflows from H'FFFF to H'0000, the
overflow flag (OVF) is set to 1 in the timer status register (TSR). If the corresponding OVIE bit is
set to 1 in the timer interrupt enable register, a CPU interrupt is requested. After the overflow, the
counter continues counting up from H'0000. Figure 8.15 illustrates free-running counting.
TCNT value
H'FFFF
H'0000
Time
STR0 to
STR4 bit
OVF
Figure 8.15 Free-Running Counter Operation
When a channel is set to have its counter cleared by compare match, in that channel TCNT
operates as a periodic counter. Select the output compare function of GRA or GRB, set bit CCLR1
or CCLR0 in the timer control register (TCR) to have the counter cleared by compare match, and
set the count period in GRA or GRB. After these settings, the counter starts counting up as a
periodic counter when the corresponding bit is set to 1 in TSTR. When the count matches GRA or
GRB, the IMFA or IMFB flag is set to 1 in TSR and the counter is cleared to H'0000. If the
corresponding IMIEA or IMIEB bit is set to 1 in TIER, a CPU interrupt is requested at this time.
After the compare match, TCNT continues counting up from H'0000. Figure 8.16 illustrates
periodic counting.
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Section 8 16-Bit Integrated Timer Unit (ITU)
TCNT value
Counter cleared by general
register compare match
GR
Time
H'0000
STR bit
IMF
Figure 8.16 Periodic Counter Operation
Count timing:
• Internal clock source
Bits TPSC2 to TPSC0 in TCR select the system clock (φ) or one of three internal clock sources
obtained by prescaling the system clock (φ/2, φ/4, φ/8).
Figure 8.17 shows the timing.
φ
Internal
clock
TCNT input
TCNT
N–1
N
N+1
Figure 8.17 Count Timing for Internal Clock Sources
• External clock source
Bits TPSC2 to TPSC0 in TCR select an external clock input pin (TCLKA to TCLKD), and its
valid edge or edges are selected by bits CKEG1 and CKEG0. The rising edge, falling edge, or
both edges can be selected.
The pulse width of the external clock signal must be at least 1.5 system clocks when a single
edge is selected, and at least 2.5 system clocks when both edges are selected. Shorter pulses
will not be counted correctly.
Figure 8.18 shows the timing when both edges are detected.
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Section 8 16-Bit Integrated Timer Unit (ITU)
φ
External
clock input
TCNT input
TCNT
N–1
N
N+1
Figure 8.18 Count Timing for External Clock Sources (when Both Edges are Detected)
Waveform Output by Compare Match
In ITU channels 0, 1, 3, and 4, compare match A or B can cause the output at the TIOCA or
TIOCB pin to go to 0, go to 1, or toggle. In channel 2 the output can only go to 0 or go to 1.
Sample setup procedure for waveform output by compare match: Figure 8.19 shows a sample
procedure for setting up waveform output by compare match.
Output setup
1. Select the compare match output mode (0, 1, or
toggle) in TIOR. When a waveform output mode
is selected, the pin switches from its generic input/
output function to the output compare function
(TIOCA or TIOCB). An output compare pin outputs
0 until the first compare match occurs.
Select waveform
output mode
1
Set output timing
2
2. Set a value in GRA or GRB to designate the
compare match timing.
Start counter
3
3. Set the STR bit to 1 in TSTR to start the timer
counter.
Waveform output
Figure 8.19 Setup Procedure for Waveform Output by Compare Match (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of waveform output: Figure 8.20 shows examples of 0 and 1 output. TCNT operates
as a free-running counter, 0 output is selected for compare match A, and 1 output is selected for
compare match B. When the pin is already at the selected output level, the pin level does not
change.
TCNT value
H'FFFF
GRB
GRA
H'0000
Time
TIOCB
No change
No change
TIOCA
No change
No change
1 output
0 output
Figure 8.20 0 and 1 Output (Examples)
Figure 8.21 shows examples of toggle output. TCNT operates as a periodic counter, cleared by
compare match B. Toggle output is selected for both compare match A and B.
TCNT value
Counter cleared by compare match with GRB
GRB
GRA
H'0000
Time
TIOCB
Toggle
output
TIOCA
Toggle
output
Figure 8.21 Toggle Output (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Output compare timing: The compare match signal is generated in the last state in which TCNT
and the general register match (when TCNT changes from the matching value to the next value).
When the compare match signal is generated, the output value selected in TIOR is output at the
output compare pin (TIOCA or TIOCB). When TCNT matches a general register, the compare
match signal is not generated until the next counter clock pulse.
Figure 8.22 shows the output compare timing.
φ
TCNT input
clock
TCNT
N
GR
N
N+1
Compare
match signal
TIOCA,
TIOCB
Figure 8.22 Output Compare Timing
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Section 8 16-Bit Integrated Timer Unit (ITU)
Input Capture Function
The TCNT value can be captured into a general register when a transition occurs at an input
capture/output compare pin (TIOCA or TIOCB). Capture can take place on the rising edge, falling
edge, or both edges. The input capture function can be used to measure pulse width or period.
Sample setup procedure for input capture: Figure 8.23 shows a sample procedure for setting up
input capture.
Input selection
Select input-capture input
1
Start counter
2
1. Set TIOR to select the input capture function of a
general register and the rising edge, falling edge,
or both edges of the input capture signal. Clear the
port data direction bit to 0 before making these
TIOR settings.
2. Set the STR bit to 1 in TSTR to start the timer
counter.
Input capture
Figure 8.23 Setup Procedure for Input Capture (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of input capture: Figure 8.24 illustrates input capture when the falling edge of TIOCB
and both edges of TIOCA are selected as capture edges. TCNT is cleared by input capture into
GRB.
TCNT value
Counter cleared by TIOCB
input (falling edge)
H'0180
H'0160
H'0005
H'0000
Time
TIOCB
TIOCA
GRA
H'0005
H'0160
GRB
H'0180
Figure 8.24 Input Capture (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Input capture signal timing: Input capture on the rising edge, falling edge, or both edges can be
selected by settings in TIOR. Figure 8.25 shows the timing when the rising edge is selected. The
pulse width of the input capture signal must be at least 1.5 system clocks for single-edge capture,
and 2.5 system clocks for capture of both edges.
φ
Input-capture input
Internal input
capture signal
N
TCNT
N
GRA, GRB
Figure 8.25 Input Capture Signal Timing
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.3
Synchronization
The synchronization function enables two or more timer counters to be synchronized by writing
the same data to them simultaneously (synchronous preset). With appropriate TCR settings, two or
more timer counters can also be cleared simultaneously (synchronous clear). Synchronization
enables additional general registers to be associated with a single time base. Synchronization can
be selected for all channels (0 to 4).
Sample Setup Procedure for Synchronization
Figure 8.26 shows a sample procedure for setting up synchronization.
Setup for synchronization
Select synchronization
1
Synchronous preset
Write to TCNT
Synchronous clear
2
Clearing
synchronized to this
channel?
No
Yes
Synchronous preset
Select counter clear source
3
Select counter clear source
4
Start counter
5
Start counter
5
Counter clear
Synchronous clear
1. Set the SYNC bits to 1 in TSNC for the channels to be synchronized.
2. When a value is written in TCNT in one of the synchronized channels, the same value is
simultaneously written in TCNT in the other channels.
3. Set the CCLR1 or CCLR0 bit in TCR to have the counter cleared by compare match or input capture.
4. Set the CCLR1 and CCLR0 bits in TCR to have the counter cleared synchronously.
5. Set the STR bits in TSTR to 1 to start the synchronized counters.
Figure 8.26 Setup Procedure for Synchronization (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Example of Synchronization
Figure 8.27 shows an example of synchronization. Channels 0, 1, and 2 are synchronized, and are
set to operate in PWM mode. Channel 0 is set for counter clearing by compare match with GRB0.
Channels 1 and 2 are set for synchronous counter clearing. The timer counters in channels 0, 1,
and 2 are synchronously preset, and are synchronously cleared by compare match with GRB0. A
three-phase PWM waveform is output from pins TIOCA0, TIOCA1, and TIOCA2. For further
information on PWM mode, see section 8.4.4, PWM Mode.
Value of TCNT0 to TCNT2
Cleared by compare match with GRB0
GRB0
GRB1
GRA0
GRB2
GRA1
GRA2
H'0000
Time
TIOCA0
TIOCA1
TIOCA2
Figure 8.27 Synchronization (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.4
PWM Mode
In PWM mode GRA and GRB are paired and a PWM waveform is output from the TIOCA pin.
GRA specifies the time at which the PWM output changes to 1. GRB specifies the time at which
the PWM output changes to 0. If either GRA or GRB is selected as the counter clear source, a
PWM waveform with a duty cycle from 0% to 100% is output at the TIOCA pin. PWM mode can
be selected in all channels (0 to 4).
Table 8.4 summarizes the PWM output pins and corresponding registers. If the same value is set
in GRA and GRB, the output does not change when compare match occurs.
Table 8.4
PWM Output Pins and Registers
Channel
Output Pin
1 Output
0 Output
0
TIOCA0
GRA0
GRB0
1
TIOCA1
GRA1
GRB1
2
TIOCA2
GRA2
GRB2
3
TIOCA3
GRA3
GRB3
4
TIOCA4
GRA4
GRB4
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Section 8 16-Bit Integrated Timer Unit (ITU)
Sample Setup Procedure for PWM Mode
Figure 8.28 shows a sample procedure for setting up PWM mode.
PWM mode
Select counter clock
1
Select counter clear source
2
Set GRA
3
Set GRB
4
Select PWM mode
5
Start counter
6
PWM mode
1. Set bits TPSC2 to TPSC0 in TCR to
select the counter clock source. If an
external clock source is selected, set
bits CKEG1 and CKEG0 in TCR to
select the desired edge(s) of the
external clock signal.
2. Set bits CCLR1 and CCLR0 in TCR
to select the counter clear source.
3. Set the time at which the PWM
waveform should go to 1 in GRA.
4. Set the time at which the PWM
waveform should go to 0 in GRB.
5. Set the PWM bit in TMDR to select
PWM mode. When PWM mode is
selected, regardless of the TIOR
contents, GRA and GRB become
output compare registers specifying
the times at which the PWM
goes to 1 and 0. The TIOCA pin
automatically becomes the PWM
output pin. The TIOCB pin conforms
to the settings of bits IOB1 and IOB0
in TIOR. If TIOCB output is not
desired, clear both IOB1 and IOB0 to 0.
6. Set the STR bit to 1 in TSTR to start
the timer counter.
Figure 8.28 Setup Procedure for PWM Mode (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of PWM Mode
Figure 8.29 shows examples of operation in PWM mode. The PWM waveform is output from the
TIOCA pin. The output goes to 1 at compare match with GRA, and to 0 at compare match with
GRB.
In the examples shown, TCNT is cleared by compare match with GRA or GRB. Synchronized
operation and free-running counting are also possible.
TCNT value
Counter cleared by compare match with GRA
GRA
GRB
H'0000
Time
TIOCA
a. Counter cleared by GRA
TCNT value
Counter cleared by compare match with GRB
GRB
GRA
Time
H'0000
TIOCA
b. Counter cleared by GRB
Figure 8.29 PWM Mode (Example 1)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Figure 8.30 shows examples of the output of PWM waveforms with duty cycles of 0% and 100%.
If the counter is cleared by compare match with GRB, and GRA is set to a higher value than GRB,
the duty cycle is 0%. If the counter is cleared by compare match with GRA, and GRB is set to a
higher value than GRA, the duty cycle is 100%.
TCNT value
Counter cleared by compare match with GRB
GRB
GRA
H'0000
Time
TIOCA
Write to GRA
Write to GRA
a. 0% duty cycle
TCNT value
Counter cleared by compare match with GRA
GRA
GRB
H'0000
Time
TIOCA
Write to GRB
Write to GRB
b. 100% duty cycle
Figure 8.30 PWM Mode (Example 2)
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.5
Reset-Synchronized PWM Mode
In reset-synchronized PWM mode channels 3 and 4 are combined to produce three pairs of
complementary PWM waveforms, all having one waveform transition point in common.
When reset-synchronized PWM mode is selected TIOCA3, TIOCB3, TIOCA4, TOCXA4, TIOCB4,
and TOCXB4 automatically become PWM output pins, and TCNT3 functions as an up-counter.
Table 8.5 lists the PWM output pins. Table 8.6 summarizes the register settings.
Table 8.5
Output Pins in Reset-Synchronized PWM Mode
Channel
Output Pin
Description
3
TIOCA3
PWM output 1
TIOCB3
PWM output 1' (complementary waveform to PWM output 1)
TIOCA4
PWM output 2
TOCXA4
PWM output 2' (complementary waveform to PWM output 2)
TIOCB4
PWM output 3
TOCXB4
PWM output 3' (complementary waveform to PWM output 3)
4
Table 8.6
Register Settings in Reset-Synchronized PWM Mode
Register
Setting
TCNT3
Initially set to H'0000
TCNT4
Not used (operates independently)
GRA3
Specifies the count period of TCNT3
GRB3
Specifies a transition point of PWM waveforms output from TIOCA3 and TIOCB3
GRA4
Specifies a transition point of PWM waveforms output from TIOCA4 and TOCXA4
GRB4
Specifies a transition point of PWM waveforms output from TIOCB4 and TOCXB4
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Section 8 16-Bit Integrated Timer Unit (ITU)
Sample Setup Procedure for Reset-Synchronized PWM Mode
Figure 8.31 shows a sample procedure for setting up reset-synchronized PWM mode.
Reset-synchronized PWM mode
Stop counter
1
Select counter clock
2
Select counter clear source
3
Select reset-synchronized
PWM mode
4
Set TCNT
5
Set general registers
6
Start counter
7
Reset-synchronized PWM mode
1. Clear the STR3 bit in TSTR to 0 to
halt TCNT3. Reset-synchronized
PWM mode must be set up while
TCNT3 is halted.
2. Set bits TPSC2 to TPSC0 in TCR to
select the counter clock source for
channel 3. If an external clock source
is selected, select the external clock
edge(s) with bits CKEG1 and CKEG0
in TCR.
3. Set bits CCLR1 and CCLR0 in TCR3
to select GRA3 compare match as
the counter clear source.
4. Set bits CMD1 and CMD0 in TFCR to
select reset-synchronized PWM mode.
TIOCA3, TIOCB3, TIOCA4, TIOCB4,
TOCXA4, and TOCXB4 automatically
become PWM output pins.
5. Preset TCNT3 to H'0000. TCNT4
need not be preset.
6. GRA3 is the waveform period register.
Set the waveform period value in
GRA3. Set transition times of the
PWM output waveforms in GRB3,
GRA4, and GRB4. Set times within
the compare match range of TCNT3.
X ≤ GRA3 (X: setting value)
7. Set the STR3 bit in TSTR to 1 to start
TCNT3.
Figure 8.31 Setup Procedure for Reset-Synchronized PWM Mode (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Example of Reset-Synchronized PWM Mode
Figure 8.32 shows an example of operation in reset-synchronized PWM mode. TCNT3 operates as
an up-counter in this mode. TCNT4 operates independently, detached from GRA4 and GRB4.
When TCNT3 matches GRA3, TCNT3 is cleared and resumes counting from H'0000. The PWM
outputs toggle at compare match with GRB3, GRA4, GRB4, and TCNT3 respectively, and when
the counter is cleared.
TCNT3 value
Counter cleared at compare match with GRA3
GRA3
GRB3
GRA4
GRB4
H'0000
Time
TIOCA3
TIOCB3
TIOCA4
TOCXA4
TIOCB4
TOCXB4
Figure 8.32 Operation in Reset-Synchronized PWM Mode (Example)
(when OLS3 = OLS4 = 1)
For the settings and operation when reset-synchronized PWM mode and buffer mode are both
selected, see section 8.4.8, Buffering.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.6
Complementary PWM Mode
In complementary PWM mode channels 3 and 4 are combined to output three pairs of
complementary, non-overlapping PWM waveforms.
When complementary PWM mode is selected TIOCA3, TIOCB3, TIOCA4, TOCXA4, TIOCB4, and
TOCXB4 automatically become PWM output pins, and TCNT3 and TCNT4 function as up/downcounters.
Table 8.7 lists the PWM output pins. Table 8.8 summarizes the register settings.
Table 8.7
Output Pins in Complementary PWM Mode
Channel
Output Pin
Description
3
TIOCA3
PWM output 1
TIOCB3
PWM output 1' (non-overlapping complementary waveform to PWM
output 1)
TIOCA4
PWM output 2
TOCXA4
PWM output 2' (non-overlapping complementary waveform to PWM
output 2)
TIOCB4
PWM output 3
TOCXB4
PWM output 3' (non-overlapping complementary waveform to PWM
output 3)
4
Table 8.8
Register Settings in Complementary PWM Mode
Register
Setting
TCNT3
Initially specifies the non-overlap margin (difference to TCNT4)
TCNT4
Initially set to H'0000
GRA3
Specifies the upper limit value of TCNT3 minus 1
GRB3
Specifies a transition point of PWM waveforms output from TIOCA3 and TIOCB3
GRA4
Specifies a transition point of PWM waveforms output from TIOCA4 and TOCXA4
GRB4
Specifies a transition point of PWM waveforms output from TIOCB4 and TOCXB4
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Section 8 16-Bit Integrated Timer Unit (ITU)
Setup Procedure for Complementary PWM Mode
Figure 8.33 shows a sample procedure for setting up complementary PWM mode.
1. Clear bits STR3 and STR4 to 0 in
TSTR to halt the timer counters.
Complementary PWM mode must be
set up while TCNT3 and TCNT4 are
halted.
Complementary PWM mode
Stop counting
1
Select counter clock
2
Select complementary
PWM mode
3
Set TCNTs
4
Set general registers
5
Start counters
6
Complementary PWM mode
2. Set bits TPSC2 to TPSC0 in TCR to
select the same counter clock source
for channels 3 and 4. If an external
clock source is selected, select the
external clock edge(s) with bits
CKEG1 and CKEG0 in TCR. Do not
select any counter clear source
with bits CCLR1 and CCLR0 in TCR.
3. Set bits CMD1 and CMD0 in TFCR
to select complementary PWM mode.
TIOCA3, TIOCB3, TIOCA4, TIOCB4,
TOCXA4, and TOCXB4 automatically
become PWM output pins.
4. Clear TCNT4 to H'0000. Set the
non-overlap margin in TCNT3. Do not
set TCNT3 and TCNT4 to the same
value.
5. GRA3 is the waveform period
register. Set the upper limit value of
TCNT3 minus 1 in GRA3. Set
transition times of the PWM output
waveforms in GRB3, GRA4, and
GRB4. Set times within the compare
match range of TCNT3 and TCNT4.
T ≤ X (X: initial setting of GRB3,
GRA4, or GRB4. T: initial setting of
TCNT3)
6. Set bits STR3 and STR4 in TSTR to
1 to start TCNT3 and TCNT4.
Note:
After exiting complementary PWM mode, to resume operating in complementary
PWM mode, follow the entire setup procedure from step 1 again.
Figure 8.33 Setup Procedure for Complementary PWM Mode (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Clearing Complementary PWM Mode
Figure 8.34 shows a sample procedure for clearing complementary PWM mode.
Complementary PWM mode
Clear complementary mode
Stop counting
1
1. Clear bit CMD1 in TFCR to 0, and set
channels 3 and 4 to normal operating
mode.
2
2. After setting channels 3 and 4 to normal
operating mode, wait at least one clock
count before clearing bits STR3 and
STR4 of TSTR to 0 to stop the counter
operation of TCNT3 and TCNT4.
Normal operation
Figure 8.34 Clearing Procedure for Complementary PWM Mode (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of Complementary PWM Mode
Figure 8.35 shows an example of operation in complementary PWM mode. TCNT3 and TCNT4
operate as up/down-counters, counting down from compare match between TCNT3 and GRA3
and counting up from the point at which TCNT4 underflows. During each up-and-down counting
cycle, PWM waveforms are generated by compare match with general registers GRB3, GRA4,
and GRB4. Since TCNT3 is initially set to a higher value than TCNT4, compare match events
occur in the sequence TCNT3, TCNT4, TCNT4, TCNT3.
TCNT3 and
TCNT4 values
Down-counting starts at compare
match between TCNT3 and GRA3
GRA3
TCNT3
GRB3
GRA4
GRB4
TCNT4
Time
H'0000
TIOCA3
Up-counting starts when
TCNT4 underflows
TIOCB3
TIOCA4
TOCXA4
TIOCB4
TOCXB4
Figure 8.35 Operation in Complementary PWM Mode (Example 1)
(when OLS3 = OLS4 = 1)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Figure 8.36 shows examples of waveforms with 0% and 100% duty cycles (in one phase) in
complementary PWM mode. In this example the outputs change at compare match with GRB3, so
waveforms with duty cycles of 0% or 100% can be output by setting GRB3 to a value larger than
GRA3. The duty cycle can be changed easily during operation by use of the buffer registers. For
further information see section 8.4.8, Buffering.
TCNT3 and
TCNT4 values
GRA3
GRB3
H'0000
Time
TIOCA3
0% duty cycle
TIOCB3
a. 0% duty cycle
TCNT3 and
TCNT4 values
GRA3
GRB3
Time
H'0000
TIOCA3
TIOCB3
100% duty cycle
b. 100% duty cycle
Figure 8.36 Operation in Complementary PWM Mode (Example 2)
(when OLS3 = OLS4 = 1)
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Section 8 16-Bit Integrated Timer Unit (ITU)
In complementary PWM mode, TCNT3 and TCNT4 overshoot and undershoot at the transitions
between up-counting and down-counting. The setting conditions for the IMFA bit in channel 3 and
the OVF bit in channel 4 differ from the usual conditions. In buffered operation the buffer transfer
conditions also differ. Timing diagrams are shown in figures 8.37 and 8.38.
TCNT3
GRA3
NÐ1
N
N+1
N
NÐ1
N
Flag not set
IMFA
Set to 1
Buffer transfer
signal (BR to GR)
GR
Buffer transfer
No buffer transfer
Figure 8.37 Overshoot Timing
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Section 8 16-Bit Integrated Timer Unit (ITU)
Underflow
TCNT4
H'0001
H'0000
H'FFFF
Overflow
H'0000
Flag not set
OVF
Set to 1
Buffer transfer
signal (BR to GR)
GR
Buffer transfer
No buffer transfer
Figure 8.38 Undershoot Timing
In channel 3, IMFA is set to 1 only during up-counting. In channel 4, OVF is set to 1 only when
an underflow occurs. When buffering is selected, buffer register contents are transferred to the
general register at compare match A3 during up-counting, and when TCNT4 underflows.
General Register Settings in Complementary PWM Mode
When setting up general registers for complementary PWM mode or changing their settings
during operation, note the following points.
• Initial settings
Do not set values from H'0000 to T – 1 (where T is the initial value of TCNT3). After the
counters start and the first compare match A3 event has occurred, however, settings in this
range also become possible.
• Changing settings
Use the buffer registers. Correct waveform output may not be obtained if a general register is
written to directly.
• Cautions on changes of general register settings
Figure 8.39 shows six correct examples and one incorrect example.
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Section 8 16-Bit Integrated Timer Unit (ITU)
GRA3
GR
H'0000
Not allowed
BR
GR
Figure 8.39 Changing a General Register Setting by Buffer Transfer (Example 1)
Buffer transfer at transition from up-counting to down-counting
If the general register value is in the range from GRA3 – T + 1 to GRA3, do not transfer a
buffer register value outside this range. Conversely, if the general register value is outside
this range, do not transfer a value within this range. See figure 8.40.
GRA3 + 1
GRA3
Illegal changes
GRA3 – T + 1
GRA3 – T
TCNT3
TCNT4
Figure 8.40 Changing a General Register Setting by Buffer Transfer (Caution 1)
Buffer transfer at transition from down-counting to up-counting
If the general register value is in the range from H'0000 to T – 1, do not transfer a buffer
register value outside this range. Conversely, when a general register value is outside this
range, do not transfer a value within this range. See figure 8.41.
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Section 8 16-Bit Integrated Timer Unit (ITU)
TCNT3
TCNT4
T
T–1
Illegal changes
H'0000
H'FFFF
Figure 8.41 Changing a General Register Setting by Buffer Transfer (Caution 2)
General register settings outside the counting range (H'0000 to GRA3)
Waveforms with a duty cycle of 0% or 100% can be output by setting a general register to
a value outside the counting range. When a buffer register is set to a value outside the
counting range, then later restored to a value within the counting range, the counting
direction (up or down) must be the same both times. See figure 8.42.
GRA3
GR
H'0000
0% duty cycle
100% duty cycle
Output pin
Output pin
BR
GR
Write during down-counting
Write during up-counting
Figure 8.42 Changing a General Register Setting by Buffer Transfer (Example 2)
Settings can be made in this way by detecting GRA3 compare match or TCNT4 underflow
before writing to the buffer register.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.7
Phase Counting Mode
In phase counting mode the phase difference between two external clock inputs (at the TCLKA
and TCLKB pins) is detected, and TCNT2 counts up or down accordingly.
In phase counting mode, the TCLKA and TCLKB pins automatically function as external clock
input pins and TCNT2 becomes an up/down-counter, regardless of the settings of bits TPSC2 to
TPSC0, CKEG1, and CKEG0 in TCR2. Settings of bits CCLR1, CCLR0 in TCR2, and settings in
TIOR2, TIER2, TSR2, GRA2, and GRB2 are valid. The input capture and output compare
functions can be used, and interrupts can be generated.
Phase counting is available only in channel 2.
Sample Setup Procedure for Phase Counting Mode
Figure 8.43 shows a sample procedure for setting up phase counting mode.
Phase counting mode
Select phase counting mode
1
Select flag setting condition
2
Start counter
3
1. Set the MDF bit in TMDR to 1 to select
phase counting mode.
2. Select the flag setting condition with
the FDIR bit in TMDR.
3. Set the STR2 bit to 1 in TSTR to start
the timer counter.
Phase counting mode
Figure 8.43 Setup Procedure for Phase Counting Mode (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Example of Phase Counting Mode
Figure 8.44 shows an example of operations in phase counting mode. Table 8.9 lists the upcounting and down-counting conditions for TCNT2.
In phase counting mode both the rising and falling edges of TCLKA and TCLKB are counted. The
phase difference between TCLKA and TCLKB must be at least 1.5 states, the phase overlap must
also be at least 1.5 states, and the pulse width must be at least 2.5 states. See figure 8.45.
TCNT2 value
Counting up
Counting down
Time
TCLKB
TCLKA
Figure 8.44 Operation in Phase Counting Mode (Example)
Table 8.9
Up/Down Counting Conditions
Counting Direction
Up-Counting
TCLKA pin
TCLKB pin
High
Low
Phase
difference
Down-Counting
Low
High
Phase
difference
High
Low
Low
Pulse width
High
Pulse width
TCLKA
TCLKB
Overlap
Overlap
Phase difference and overlap: at least 1.5 states
Pulse width:
at least 2.5 states
Figure 8.45 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.8
Buffering
Buffering operates differently depending on whether a general register is an output compare
register or an input capture register, with further differences in reset-synchronized PWM mode and
complementary PWM mode. Buffering is available only in channels 3 and 4. Buffering operations
under the conditions mentioned above are described next.
• General register used for output compare
The buffer register value is transferred to the general register at compare match. See
figure 8.46.
Compare match signal
BR
GR
Comparator
TCNT
Figure 8.46 Compare Match Buffering
• General register used for input capture
The TCNT value is transferred to the general register at input capture. The previous general
register value is transferred to the buffer register.
See figure 8.47.
Input capture signal
BR
GR
TCNT
Figure 8.47 Input Capture Buffering
• Complementary PWM mode
The buffer register value is transferred to the general register when TCNT3 and TCNT4
change counting direction. This occurs at the following two times:
When TCNT3 matches GRA3
When TCNT4 underflows
• Reset-synchronized PWM mode
The buffer register value is transferred to the general register at compare match A3.
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Section 8 16-Bit Integrated Timer Unit (ITU)
Sample Buffering Setup Procedure
Figure 8.48 shows a sample buffering setup procedure.
Buffering
Select general register functions
1
Set buffer bits
2
Start counters
3
1. Set TIOR to select the output compare or input
capture function of the general registers.
2. Set bits BFA3, BFA4, BFB3, and BFB4 in TFCR
to select buffering of the required general registers.
3. Set the STR bits to 1 in TSTR to start the timer
counters.
Buffered operation
Figure 8.48 Buffering Setup Procedure (Example)
Examples of Buffering
Figure 8.49 shows an example in which GRA is set to function as an output compare register
buffered by BRA, TCNT is set to operate as a periodic counter cleared by GRB compare match,
and TIOCA and TIOCB are set to toggle at compare match A and B. Because of the buffer setting,
when TIOCA toggles at compare match A, the BRA value is simultaneously transferred to GRA.
This operation is repeated each time compare match A occurs. Figure 8.50 shows the transfer
timing.
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Section 8 16-Bit Integrated Timer Unit (ITU)
TCNT value
Counter cleared by compare match B
GRB
H'0250
H'0200
H'0100
H'0000
Time
BRA
H'0200
GRA
H'0250
H'0200
H'0100
H'0200
H'0100
H'0200
TIOCB
Toggle
output
TIOCA
Toggle
output
Compare match A
Figure 8.49 Register Buffering (Example 1: Buffering of Output Compare Register)
φ
n
TCNT
n+1
Compare
match signal
Buffer transfer
signal
N
BR
GR
n
N
Figure 8.50 Compare Match and Buffer Transfer Timing (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Figure 8.51 shows an example in which GRA is set to function as an input capture register
buffered by BRA, and TCNT is cleared by input capture B. The falling edge is selected as the
input capture edge at TIOCB. Both edges are selected as input capture edges at TIOCA. Because
of the buffer setting, when the TCNT value is captured into GRA at input capture A, the previous
GRA value is simultaneously transferred to BRA. Figure 8.52 shows the transfer timing.
TCNT value
Counter cleared by
input capture B
H'0180
H'0160
H'0005
H'0000
Time
TIOCB
TIOCA
GRA
H'0005
H'0160
H'0160
H'0005
BRA
GRB
H'0180
Input capture A
Figure 8.51 Register Buffering (Example 2: Buffering of Input Capture Register)
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Section 8 16-Bit Integrated Timer Unit (ITU)
φ
TIOC pin
Input capture
signal
TCNT
n
n+1
N
N+1
GR
M
n
n
N
BR
m
M
M
n
Figure 8.52 Input Capture and Buffer Transfer Timing (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Figure 8.53 shows an example in which GRB3 is buffered by BRB3 in complementary PWM
mode. Buffering is used to set GRB3 to a higher value than GRA3, generating a PWM waveform
with 0% duty cycle. The BRB3 value is transferred to GRB3 when TCNT3 matches GRA3, and
when TCNT4 underflows.
TCNT3 and
TCNT4 values
TCNT3
H'1FFF
GRA3
GRB3
TCNT4
H'0999
H'0000
BRB3
GRB3
Time
H'1FFF
H'0999
H'0999
H'0999
H'1FFF
H'0999
H'1FFF
H'0999
TIOCA3
TIOCB3
Figure 8.53 Register Buffering (Example 4: Buffering in Complementary PWM Mode)
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.4.9
ITU Output Timing
The ITU outputs from channels 3 and 4 can be disabled by bit settings in TOER or by an external
trigger, or inverted by bit settings in TOCR.
Timing of Enabling and Disabling of ITU Output by TOER
In this example an ITU output is disabled by clearing a master enable bit to 0 in TOER. An
arbitrary value can be output by appropriate settings of the data register (DR) and data direction
register (DDR) of the corresponding input/output port. Figure 8.54 illustrates the timing of the
enabling and disabling of ITU output by TOER.
T1
T2
T3
φ
Address
TOER address
TOER
ITU output pin
Timer output
ITU output
I/O port
Generic input/output
Figure 8.54 Timing of Disabling of ITU Output by Writing to TOER (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Timing of Disabling of ITU Output by External Trigger
If the XTGD bit is cleared to 0 in TOCR in reset-synchronized PWM mode or complementary
PWM mode, when an input capture A signal occurs in channel 1, the master enable bits are
cleared to 0 in TOER, disabling ITU output. Figure 8.55 shows the timing.
φ
TIOCA1 pin
Input capture
signal
N
TOER
ITU output
pins
ITU output
ITU output
H'C0
N
I/O port
Generic
input/output
ITU output
ITU output
H'C0
I/O port
Generic
input/output
Legend:
N: Arbitrary setting (H'C1 to H'FF)
Figure 8.55 Timing of Disabling of ITU Output by External Trigger (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
Timing of Output Inversion by TOCR
The output levels in reset-synchronized PWM mode and complementary PWM mode can be
inverted by inverting the output level select bits (OLS4 and OLS3) in TOCR. Figure 8.56 shows
the timing.
T1
T2
T3
φ
Address
TOCR address
TOCR
ITU output pin
Inverted
Figure 8.56 Timing of Inverting of ITU Output Level by Writing to TOCR (Example)
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.5
Interrupts
The ITU has two types of interrupts: input capture/compare match interrupts, and overflow
interrupts.
8.5.1
Setting of Status Flags
Timing of Setting of IMFA and IMFB at Compare Match
IMFA and IMFB are set to 1 by a compare match signal generated when TCNT matches a general
register (GR). The compare match signal is generated in the last state in which the values match
(when TCNT is updated from the matching count to the next count). Therefore, when TCNT
matches a general register, the compare match signal is not generated until the next timer clock
input. Figure 8.57 shows the timing of the setting of IMFA and IMFB.
φ
TCNT input
clock
TCNT
N
GR
N+1
N
Compare
match signal
IMF
IMI
Figure 8.57 Timing of Setting of IMFA and IMFB by Compare Match
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Section 8 16-Bit Integrated Timer Unit (ITU)
Timing of Setting of IMFA and IMFB by Input Capture
IMFA and IMFB are set to 1 by an input capture signal. The TCNT contents are simultaneously
transferred to the corresponding general register. Figure 8.58 shows the timing.
φ
Input capture
signal
IMF
N
TCNT
GR
N
IMI
Figure 8.58 Timing of Setting of IMFA and IMFB by Input Capture
Timing of Setting of Overflow Flag (OVF)
OVF is set to 1 when TCNT overflows from H'FFFF to H'0000 or underflows from H'0000 to
H'FFFF. Figure 8.59 shows the timing.
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Section 8 16-Bit Integrated Timer Unit (ITU)
φ
TCNT
H'FFFF
H'0000
Overflow
signal
OVF
OVI
Figure 8.59 Timing of Setting of OVF
8.5.2
Clearing of Status Flags
If the CPU reads a status flag while it is set to 1, then writes 0 in the status flag, the status flag is
cleared. Figure 8.60 shows the timing.
TSR write cycle
T1
T2
T3
φ
Address
TSR address
IMF, OVF
Figure 8.60 Timing of Clearing of Status Flags
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.5.3
Interrupt Sources
Each ITU channel can generate a compare match/input capture A interrupt, a compare match/input
capture B interrupt, and an overflow interrupt. In total there are 15 interrupt sources, all
independently vectored. An interrupt is requested when the interrupt request flag and interrupt
enable bit are both set to 1.
The priority order of the channels can be modified in interrupt priority registers A and B (IPRA
and IPRB). For details see section 5, Interrupt Controller.
Table 8.10 lists the interrupt sources.
Table 8.10 ITU Interrupt Sources
Channel
Interrupt Source
Description
Priority*
0
IMIA0
Compare match/input capture A0
High
IMIB0
Compare match/input capture B0
OVI0
Overflow 0
IMIA1
Compare match/input capture A1
IMIB1
Compare match/input capture B1
OVI1
Overflow 1
IMIA2
Compare match/input capture A2
IMIB2
Compare match/input capture B2
OVI2
Overflow 2
IMIA3
Compare match/input capture A3
IMIB3
Compare match/input capture B3
OVI3
Overflow 3
IMIA4
Compare match/input capture A4
IMIB4
Compare match/input capture B4
OVI4
Overflow 4
1
2
3
4
Note:
*
Low
The priority immediately after a reset is indicated. Inter-channel priorities can be
changed by settings in IPRA and IPRB.
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Section 8 16-Bit Integrated Timer Unit (ITU)
8.6
Usage Notes
This section describes contention and other matters requiring special attention during ITU
operations.
Contention between TCNT Write and Clear
If a counter clear signal occurs in the T3 state of a TCNT write cycle, clearing of the counter takes
priority and the write is not performed. See figure 8.61.
TCNT write cycle
T2
T1
T3
φ
Address
TCNT address
Internal write signal
Counter clear signal
TCNT
N
H'0000
Figure 8.61 Contention between TCNT Write and Clear
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between TCNT Word Write and Increment
If an increment pulse occurs in the T3 state of a TCNT word write cycle, writing takes priority and
TCNT is not incremented. See figure 8.62.
TCNT word write cycle
T2
T1
T3
φ
Address
TCNT address
Internal write signal
TCNT input clock
TCNT
N
M
TCNT write data
Figure 8.62 Contention between TCNT Word Write and Increment
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between TCNT Byte Write and Increment
If an increment pulse occurs in the T2 or T3 state of a TCNT byte write cycle, writing takes priority
and TCNT is not incremented. The TCNT byte that was not written retains its previous value. See
figure 8.63, which shows an increment pulse occurring in the T2 state of a byte write to TCNTH.
TCNTH byte write cycle
T1
T2
T3
φ
TCNTH address
Address
Internal write signal
TCNT input clock
TCNTH
N
M
TCNT write data
TCNTL
X
X+1
X
Figure 8.63 Contention between TCNT Byte Write and Increment
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between General Register Write and Compare Match
If a compare match occurs in the T3 state of a general register write cycle, writing takes priority
and the compare match signal is inhibited. See figure 8.64.
General register write cycle
T1
T2
T3
φ
GR address
Address
Internal write signal
TCNT
N
GR
N
N+1
M
General register write data
Compare match signal
Inhibited
Figure 8.64 Contention between General Register Write and Compare Match
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between TCNT Write and Overflow or Underflow
If an overflow occurs in the T3 state of a TCNT write cycle, writing takes priority and the counter
is not incremented. OVF is set to 1. The same holds for underflow. See figure 8.65.
TCNT write cycle
T1
T2
T3
φ
Address
TCNT address
Internal write signal
TCNT input clock
Overflow signal
TCNT
H'FFFF
M
TCNT write data
OVF
Figure 8.65 Contention between TCNT Write and Overflow
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between General Register Read and Input Capture
If an input capture signal occurs during the T3 state of a general register read cycle, the value
before input capture is read. See figure 8.66.
General register read cycle
T2
T1
T3
φ
GR address
Address
Internal read signal
Input capture signal
GR
Internal data bus
X
M
X
Figure 8.66 Contention between General Register Read and Input Capture
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between Counter Clearing by Input Capture and Counter Increment
If an input capture signal and counter increment signal occur simultaneously, the counter is
cleared according to the input capture signal. The counter is not incremented by the increment
signal. The value before the counter is cleared is transferred to the general register. See figure
8.67.
φ
Input capture signal
Counter clear signal
TCNT input clock
TCNT
GR
N
H'0000
N
Figure 8.67 Contention between Counter Clearing by Input Capture and
Counter Increment
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between General Register Write and Input Capture
If an input capture signal occurs in the T3 state of a general register write cycle, input capture takes
priority and the write to the general register is not performed. See figure 8.68.
General register write cycle
T1
T2
T3
φ
Address
GR address
Internal write signal
Input capture signal
TCNT
GR
M
M
Figure 8.68 Contention between General Register Write and Input Capture
Note on Waveform Period Setting
When a counter is cleared by compare match, the counter is cleared in the last state at which the
TCNT value matches the general register value, at the time when this value would normally be
updated to the next count. The actual counter frequency is therefore given by the following
formula:
φ
f=
(N + 1)
(f: counter frequency. φ: system clock frequency. N: value set in general register.)
Rev.3.00 Mar. 26, 2007 Page 283 of 682
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Section 8 16-Bit Integrated Timer Unit (ITU)
Contention between Buffer Register Write and Input Capture
If a buffer register is used for input capture buffering and an input capture signal occurs in the T3
state of a write cycle, input capture takes priority and the write to the buffer register is not
performed. See figure 8.69.
Buffer register write cycle
T2
T1
T3
φ
Address
BR address
Internal write signal
Input capture signal
GR
N
X
TCNT value
BR
M
N
Figure 8.69 Contention between Buffer Register Write and Input Capture
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Section 8 16-Bit Integrated Timer Unit (ITU)
Note on Synchronous Preset
When channels are synchronized, if a TCNT value is modified by byte write access, all 16 bits of
all synchronized counters assume the same value as the counter that was addressed.
(Example) When channels 2 and 3 are synchronized
• Byte write to channel 2 or byte write to channel 3
TCNT2
W
X
TCNT3
Y
Z
Upper byte Lower byte
Write A to upper byte
of channel 2
TCNT2
A
X
TCNT3
A
X
Upper byte Lower byte
Write A to lower byte
of channel 3
TCNT2
Y
A
TCNT3
Y
A
Upper byte Lower byte
• Word write to channel 2 or word write to channel 3
TCNT2
W
X
TCNT3
Y
Z
Upper byte Lower byte
Write AB word to
channel 2 or 3
TCNT2
A
B
TCNT3
A
B
Upper byte Lower byte
Note on Setup of Reset-Synchronized PWM Mode and Complementary PWM Mode
When setting bits CMD1 and CMD0 in TFCR, take the following precautions:
• Write to bits CMD1 and CMD0 only when TCNT3 and TCNT4 are stopped.
• Do not switch directly between reset-synchronized PWM mode and complementary PWM
mode. First switch to normal mode (by clearing bit CMD1 to 0), then select reset-synchronized
PWM mode or complementary PWM mode.
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—
—
—
—
Input capture B
Counter By compare
clearing match/input
capture A
By compare
match/input
capture B
Synchronous
clear
—
—
—
—
—
—
—
—
—
FDIR
PWM
PWM0 = 0
PWM0 = 0
PWM0 = 0
PWM0 = 1
TMDR
TFCR
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
IOA2 = 1
Other bits
unrestricted
IOA2 = 0
Other bits
unrestricted
—
IOA
*
IOB
IOB2 = 1
Other bits
unrestricted
IOB2 = 0
Other bits
unrestricted
TIOR0
CCLR1 = 1
CCLR0 = 1
CCLR1 = 1
CCLR0 = 0
CCLR1 = 0
CCLR0 = 1
Clear
Select
TCR0
Clock
Select
Note: The input capture function cannot be used in PWM mode. If compare match A and compare match B occur simultaneously, the compare match signal is inhibited.
—
—
—
—
—
—
—
—
—
TOER
Output
Master
Level
Enable
Select
TOCR
Register Settings
ResetComple- SynchroBuffermentary
XTGD
nized
ing
PWM
PWM
: Setting available (valid). —: Setting does not affect this mode.
—
Input capture A
Legend:
—
Output compare B
SYNC0 = 1
—
Output compare A
—
MDF
—
SYNC0 = 1
Synchronization
PWM mode
Synchronous preset
Operating Mode
TSNC
Section 8 16-Bit Integrated Timer Unit (ITU)
ITU Operating Modes
Table 8.11 (a) ITU Operating Modes (Channel 0)
—
—
—
Input capture B
Counter By compare
clearing match/input
capture A
By compare
match/input
capture B
—
—
—
—
—
—
—
—
—
FDIR
PWM
PWM1 = 0
PWM1 = 0
PWM1 = 0
PWM1 = 1
TMDR
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
*2
—
—
—
—
XTGD
—
—
—
—
—
—
—
—
—
Output
Level
Select
TOCR
Register Settings
ResetComple- SynchroBuffermentary nized
ing
PWM
PWM
TFCR
—
—
—
—
—
—
—
—
—
Master
Enable
TOER
IOA2 = 1
Other bits
unrestricted
IOA2 = 0
Other bits
unrestricted
—
IOA
IOB
*1
IOB2 = 1
Other bits
unrestricted
IOB2 = 0
Other bits
unrestricted
TIOR1
CCLR1 = 1
CCLR0 = 1
CCLR1 = 1
CCLR0 = 0
CCLR1 = 0
CCLR0 = 1
Clear
Select
Clock
Select
TCR1
Legend:
: Setting available (valid). —: Setting does not affect this mode.
Notes: 1. The input capture function cannot be used in PWM mode. If compare match A and compare match B occur simultaneously, the compare match signal is inhibited.
2. Valid only when channels 3 and 4 are operating in complementary PWM mode or reset-synchronized PWM mode.
—
—
Input capture A
SYNC1 = 1
—
Output compare B
Synchronous
clear
—
Output compare A
—
MDF
—
SYNC1 = 1
Synchronization
PWM mode
Synchronous preset
Operating Mode
TSNC
Section 8 16-Bit Integrated Timer Unit (ITU)
Table 8.11 (b) ITU Operating Modes (Channel 1)
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—
—
—
—
—
Input capture A
Input capture B
Counter By compare
clearing match/input
capture A
By compare
match/input
capture B
Synchronous
clear
MDF = 1
—
Output compare B
PWM2 = 0
PWM2 = 0
PWM2 = 0
PWM2 = 1
PWM
TOCR
Register Settings
TOER
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ResetOutput
CompleMaster
Synchro- Buffermentary
XTGD Level Enable
nized
ing
Select
PWM
PWM
TFCR
IOA2 = 1
Other bits
unrestricted
IOA2 = 0
Other bits
unrestricted
—
IOA
*
IOB
IOB2 = 1
Other bits
unrestricted
IOB2 = 0
Other bits
unrestricted
TIOR2
CCLR1 = 1
CCLR0 = 1
CCLR1 = 1
CCLR0 = 0
CCLR1 = 0
CCLR0 = 1
Clear
Select
—
Clock
Select
TCR2
Legend:
: Setting available (valid). —: Setting does not affect this mode.
Note: The input capture function cannot be used in PWM mode. If compare match A and compare match B occur simultaneously , the compare match signal is inhibited.
Phase counting
mode
—
—
FDIR
Output compare A
SYNC2 = 1
MDF
—
SYNC2 = 1
Synchronization
TMDR
PWM mode
Synchronous preset
Operating Mode
TSNC
Section 8 16-Bit Integrated Timer Unit (ITU)
Table 8.11 (c) ITU Operating Modes (Channel 2)
—
—
—
—
—
—
Counter
clearing
Legend:
Notes: 1.
2.
3.
4.
5.
6.
Buffering
(BRB)
—
—
—
—
—
—
—
—
—
—
—
Illegal setting:
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 1
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 1
BFA3 = 1
Other bits
unrestricted
BFB3 = 1
Other bits
unrestricted
*1
—
*1
—
CCLR1 = 0
CCLR0 = 0
CCLR1 = 0
CCLR0 = 1
CCLR1 = 1
CCLR0 = 1
*1
—
CCLR1 = 1
CCLR0 = 0
*1
—
—
TCR3
Clear
Select
EA3 ignored IOA2 = 1
Other bits
Other bits
unrestricted unrestricted
EB3 ignored
IOB2 = 1
Other bits
Other bits
unrestricted
unrestricted
1
*
CCLR1 = 0
CCLR0 = 1
*6
—
*2
IOB
IOB2 = 0
Other bits
unrestricted
TIOR3
—
IOA2 = 0
Other bits
unrestricted
IOA
—
—
—
—
—
—
—
—
*1
Master
Enable
TOER
*6
—
—
—
*4
Illegal setting:
CMD1 = 1
CMD0 = 0
CMD1 = 0
CMD1 = 0
—
—
—
CMD1 = 0
CMD1 = 0
CMD1 = 0
PWM3 = 0 CMD1 = 0
PWM3 = 0 CMD1 = 0
CMD1 = 0
PWM3 = 1 CMD1 = 0
PWM3 = 0 CMD1 = 0
PWM
Complementary
PWM
*3
Register Settings
TFCR
TOCR
ResetOutput
Synchro- Buffering XTGD Level
nized PWM
Select
—
—
CMD1 = 0
—
—
CMD1 = 0
—
—
*5
Clock
Select
: Setting available (valid). —: Setting does not affect this mode.
Master enable bit settings are valid only during waveform output.
The input capture function cannot be used in PWM mode. If compare match A and compare match B occur simultaneously, the compare match signal is inhibited.
Do not set both channels 3 and 4 for synchronous operation when complementary PWM mode is selected.
The counter cannot be cleared by input capture A when reset-synchronized PWM mode is selected.
In complementary PWM mode, select the same clock source for channels 3 and 4.
Use the input capture A function in channel 1.
By compare
match/input
capture A
By compare
match/input
capture B
SynSYNC3 = 1
chronous
clear
*3
Complementary
PWM mode
Reset-synchronized
PWM mode
Buf fering
(BRA)
—
Input capture B
—
—
—
—
—
—
FDIR
Input capture A
—
—
—
MDF
—
SYNC3 = 1
Synchronization
TMDR
Output compare B
Synchronous preset
PWM mode
Output compare A
Operating Mode
TSNC
Section 8 16-Bit Integrated Timer Unit (ITU)
Table 8.11 (d) ITU Operating Modes (Channel 3)
Rev.3.00 Mar. 26, 2007 Page 289 of 682
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REJ09B0353-0300
—
—
—
—
—
—
—
—
—
Legend:
Notes: 1.
2.
3.
4.
5.
6.
—
—
—
—
Illegal setting:
CMD1 = 1
CMD0 = 0
Illegal setting:
CMD1 = 1
CMD0 = 0
Illegal setting:
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 1
PWM4 = 0 CMD1 = 0
PWM4 = 0 CMD1 = 0
CMD1 = 0
PWM4 = 1 CMD1 = 0
PWM4 = 0 CMD1 = 0
PWM
Complementary
PWM
*3
—
*4
—
—
—
*4
BFA4 = 1
Other bits
unrestricted
BFB4 = 1
Other bits
unrestricted
—
*4
CMD1 = 1
CMD0 = 0
CMD1 = 1
CMD0 = 1
—
—
—
CMD1 = 0
CMD1 = 0
CMD1 = 0
—
—
—
—
—
—
—
—
Register Settings
TFCR
TOCR
ResetOutput
Synchro- Buffering XTGD Level
nized PWM
Select
—
—
CMD1 = 0
—
—
CMD1 = 0
—
—
—
IOA2 = 0
Other bits
unrestricted
IOA
*2
IOB
IOB2 = 0
Other bits
unrestricted
TIOR4
TCR4
Clear
Select
*1
*1
*1
*1
—
—
—
—
CCLR1 = 0
CCLR0 = 0
*6
CCLR1 = 1
CCLR0 = 1
CCLR1 = 1
CCLR0 = 0
EA4 ignored IOA2 = 1
Other bits
Other bits
unrestricted unrestricted
EB4 ignored
IOB2 = 1
Other bits
Other bits
unrestricted
unrestricted
1
*
CCLR1 = 0
CCLR0 = 1
*1
Master
Enable
TOER
*6
*5
Clock
Select
: Setting available (valid). —: Setting does not affect this mode.
Master enable bit settings are valid only during waveform output.
The input capture function cannot be used in PWM mode. If compare match A and compare match B occur simultaneously, the compare match signal is inhibited.
Do not set both channels 3 and 4 for synchronous operation when complementary PWM mode is selected.
When reset-synchronized PWM mode is selected, TCNT4 operates independently and the counter clearing function is available. W aveform output is not affected.
In complementary PWM mode, select the same clock source for channels 3 and 4.
TCR4 settings are valid in reset-synchronized PWM mode, but TCNT4 operates independently , without affecting waveform output.
—
—
—
Counter By compare
clearing match/input
capture A
By compare
match/input
capture B
SynSYNC4 = 1
chronous
clear
*3
Complementary
PWM mode
Reset-synchronized
PWM mode
Buffering
(BRA)
Buffering
(BRB)
—
—
Input capture B
—
—
—
—
—
—
Input capture A
—
—
—
—
SYNC4 = 1
FDIR
Synchronization
MDF
TMDR
TSNC
Output compare B
Synchronous preset
PWM mode
Output compare A
Operating Mode
Section 8 16-Bit Integrated Timer Unit (ITU)
Table 8.11 (e) ITU Operating Modes (Channel 4)
Section 9 Programmable Timing Pattern Controller
Section 9 Programmable Timing Pattern Controller
9.1
Overview
The H8/3039 Group has a built-in programmable timing pattern controller (TPC)* that provides
pulse outputs by using the 16-bit integrated timer-pulse unit (ITU) as a time base. The TPC pulse
outputs are divided into 4-bit groups (group 3 to group 0) that can operate simultaneously and
independently.
9.1.1
Features
TPC features are listed below.
• 15-bit output data
Maximum 15-bit data can be output. TPC output can be enabled on a bit-by-bit basis.
• Four output groups and one 3-bit output.
Output trigger signals can be selected in 4-bit groups to provide up to three different 4-bit
outputs and one 3-bit output.
• Selectable output trigger signals
Output trigger signals can be selected for each group from the compare-match signals of four
ITU channels.
• Non-overlap mode
A non-overlap margin can be provided between pulse outputs.
Note: * Note that since this LSI does not have a TP14 pin, it is a 15-bit programmable timing
pattern controller (TPC).
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Section 9 Programmable Timing Pattern Controller
9.1.2
Block Diagram
Figure 9.1 shows a block diagram of the TPC.
ITU compare match signals
Control logic
TP15
(TP14)*
TP13
TP12
TP11
TP10
TP9
TP8
TP7
TP6
TP5
TP4
TP3
TP2
TP1
TP0
Legend:
TPMR:
TPCR:
NDERB:
NDERA:
PBDDR:
PADDR:
NDRB:
NDRA:
PBDR:
PADR:
PADDR
PBDDR
NDERA
NDERB
TPMR
TPCR
Internal
data bus
Pulse output
pins, group 3
PBDR
NDRB
PADR
NDRA
Pulse output
pins, group 2
Pulse output
pins, group 1
Pulse output
pins, group 0
TPC output mode register
TPC output control register
Next data enable register B
Next data enable register A
Port B data direction register
Port A data direction register
Next data register B
Next data register A
Port B data register
Port A data register
Note: * Since this LSI does not have this pin, this signal cannot be output to the outside.
Figure 9.1 TPC Block Diagram
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Section 9 Programmable Timing Pattern Controller
9.1.3
TPC Pins
Table 9.1 summarizes the TPC output pins.
Table 9.1
TPC Pins
Name
Symbol
I/O
Function
TPC output 0
TP0
Output
Group 0 pulse output
TPC output 1
TP1
Output
TPC output 2
TP2
Output
TPC output 3
TP3
Output
TPC output 4
TP4
Output
TPC output 5
TP5
Output
TPC output 6
TP6
Output
TPC output 7
TP7
Output
TPC output 8
TP8
Output
TPC output 9
TP9
Output
TPC output 10
TP10
Output
TPC output 11
TP11
Output
TPC output 12
TP12
Output
TPC output 13
TP13
Output
(TPC output 14)*
(TP14)*
(Output)*
TPC output 15
TP15
Output
Note:
*
Group 1 pulse output
Group 2 pulse output
Group 3 pulse output
Since this LSI does not have this pin, this signal cannot be output to the outside.
Rev.3.00 Mar. 26, 2007 Page 293 of 682
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Section 9 Programmable Timing Pattern Controller
9.1.4
Registers
Table 9.2 summarizes the TPC registers.
Table 9.2
TPC Registers
1
Address*
Name
Abbreviation
R/W
H'FFD1
Port A data direction register
PADDR
W
H'FFD3
Port A data register
PADR
R/(W)*
H'FFD4
Port B data direction register
PBDDR
W
Initial Value
H'00
2
H'00
H'00
2
H'FFD6
Port B data register
PBDR
R/(W)*
H'00
H'FFA0
TPC output mode register
TPMR
R/W
H'F0
H'FFA1
TPC output control register
TPCR
R/W
H'FF
H'FFA2
Next data enable register B
NDERB
R/W
H'00
H'FFA3
Next data enable register A
NDERA
R/W
H'00
H'FFA5/
3
H'FFA7*
Next data register A
NDRA
R/W
H'00
H'FFA4/
3
H'FFA6*
Next data register B
NDRB
R/W
H'00
Notes: 1. Lower 16 bits of the address.
2. Bits used for TPC output cannot be written.
3. The NDRA address is H'FFA5 when the same output trigger is selected for TPC output
groups 0 and 1 by settings in TPCR. When the output triggers are different, the NDRA
address is H'FFA7 for group 0 and H'FFA5 for group 1. Similarly, the address of NDRB
is H'FFA4 when the same output trigger is selected for TPC output groups 2 and 3 by
settings in TPCR. When the output triggers are different, the NDRB address is H'FFA6
for group 2 and H'FFA4 for group 3.
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Section 9 Programmable Timing Pattern Controller
9.2
Register Descriptions
9.2.1
Port A Data Direction Register (PADDR)
PADDR is an 8-bit write-only register that selects input or output for each pin in port A.
Bit
7
6
5
4
3
2
1
0
PA 7 DDR PA 6 DDR PA 5 DDR PA 4 DDR PA 3 DDR PA 2 DDR PA 1 DDR PA 0 DDR
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port A data direction 7 to 0
These bits select input or
output for port A pins
Port A is multiplexed with pins TP7 to TP0. Bits corresponding to pins used for TPC output must
be set to 1. For further information about PADDR, see section 7.10, Port A.
9.2.2
Port A Data Register (PADR)
PADR is an 8-bit readable/writable register that stores TPC output data for groups 0 and 1, when
these TPC output groups are used.
Bit
7
6
5
4
3
2
1
0
PA 7
PA 6
PA 5
PA 4
PA 3
PA 2
PA 1
PA 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
Port A data 7 to 0
These bits store output data
for TPC output groups 0 and 1
Note: * Bits selected for TPC output by NDERA settings become read-only bits.
For further information about PADR, see section 7.10, Port A.
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Section 9 Programmable Timing Pattern Controller
9.2.3
Port B Data Direction Register (PBDDR)
PBDDR is an 8-bit write-only register that selects input or output for each pin in port B.
Bit
7
6
5
4
3
2
1
0
PB7 DDR
—
Initial value
0
0
PB5 DDR PB4 DDR PB3 DDR PB2 DDR PB1 DDR PB0 DDR
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port B data direction 7, 5 to 0
These bits select input or
output for port B pins
Reserved bit
Port B is multiplexed with pins TP15, TP13 to TP8. Bits corresponding to pins used for TPC output
must be set to 1. For further information about PBDDR, see section 7.11, Port B.
9.2.4
Port B Data Register (PBDR)
PBDR is an 8-bit readable/writable register that stores TPC output data for groups 2 and 3, when
these TPC output groups are used.
Bit
7
6
5
4
3
2
1
0
PB 7
—
PB 5
PB 4
PB 3
PB 2
PB 1
PB 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
Reserved bit
Port B data 7, 5 to 0
These bits store output data
for TPC output groups 2 and 3
Note: * Bits selected for TPC output by NDERB settings become read-only bits.
For further information about PBDR, see section 7.11, Port B.
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Section 9 Programmable Timing Pattern Controller
9.2.5
Next Data Register A (NDRA)
NDRA is an 8-bit readable/writable register that stores the next output data for TPC output groups
1 and 0 (pins TP7 to TP0). During TPC output, when an ITU compare match event specified in
TPCR occurs, NDRA contents are transferred to the corresponding bits in PADR. The address of
NDRA differs depending on whether TPC output groups 0 and 1 have the same output trigger or
different output triggers.
NDRA is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Same Trigger for TPC Output Groups 0 and 1
If TPC output groups 0 and 1 are triggered by the same compare match event, the NDRA address
is H'FFA5. The upper 4 bits belong to group 1 and the lower 4 bits to group 0. Address H'FFA7
consists entirely of reserved bits that cannot be modified and always read 1.
Address H'FFA5
Bit
7
6
5
4
3
2
1
0
NDR7
NDR6
NDR5
NDR4
NDR3
NDR2
NDR1
NDR0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next data 7 to 4
These bits store the next output
data for TPC output group 1
Next data 3 to 0
These bits store the next output
data for TPC output group 0
Address H'FFA7
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
—
—
—
—
—
Reserved bits
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Section 9 Programmable Timing Pattern Controller
Different Triggers for TPC Output Groups 0 and 1
If TPC output groups 0 and 1 are triggered by different compare match events, the address of the
upper 4 bits of NDRA (group 1) is H'FFA5 and the address of the lower 4 bits (group 0) is
H'FFA7. Bits 3 to 0 of address H'FFA5 and bits 7 to 4 of address H'FFA7 are reserved bits that
cannot be modified and always read 1.
Address H'FFA5
Bit
7
6
5
4
3
2
1
0
NDR7
NDR6
NDR5
NDR4
—
—
—
—
Initial value
0
0
0
0
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
—
—
—
—
Next data 7 to 4
These bits store the next output
data for TPC output group 1
Reserved bits
Address H'FFA7
Bit
7
6
5
4
3
2
1
0
—
—
—
—
NDR3
NDR2
NDR1
NDR0
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
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Next data 3 to 0
These bits store the next output
data for TPC output group 0
Section 9 Programmable Timing Pattern Controller
9.2.6
Next Data Register B (NDRB)
NDRB is an 8-bit readable/writable register that stores the next output data for TPC output groups
3 and 2 (pins TP15 to TP8)*. During TPC output, when an ITU compare match event specified in
TPCR occurs, NDRB contents are transferred to the corresponding bits in PBDR. The address of
NDRB differs depending on whether TPC output groups 2 and 3 have the same output trigger or
different output triggers.
NDRB is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output to the outside.
Same Trigger for TPC Output Groups 2 and 3
If TPC output groups 2 and 3 are triggered by the same compare match event, the NDRB address
is H'FFA4. The upper 4 bits belong to group 3 and the lower 4 bits to group 2. Address H'FFA6
consists entirely of reserved bits that cannot be modified and always read 1.
Address H'FFA4
Bit
7
6
5
4
3
2
1
0
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next data 15 to 12
These bits store the next output
data for TPC output group 3
Next data 11 to 8
These bits store the next output
data for TPC output group 2
Address H'FFA6
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
—
—
—
—
—
Reserved bits
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Section 9 Programmable Timing Pattern Controller
Different Triggers for TPC Output Groups 2 and 3
If TPC output groups 2 and 3 are triggered by different compare match events, the address of the
upper 4 bits of NDRB (group 3)* is H'FFA4 and the address of the lower 4 bits (group 2) is
H'FFA6. Bits 3 to 0 of address H'FFA4 and bits 7 to 4 of address H'FFA6 are reserved bits that
cannot be modified and always read 1.
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output off-chip.
Address H'FFA4
Bit
7
6
5
4
3
2
1
0
NDR15
NDR14
NDR13
NDR12
—
—
—
—
Initial value
0
0
0
0
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
—
—
—
—
Next data 15 to 12
These bits store the next output
data for TPC output group 3
Reserved bits
Address H'FFA6
Bit
7
6
5
4
3
2
1
0
—
—
—
—
NDR11
NDR10
NDR9
NDR8
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
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Next data 11 to 8
These bits store the next output
data for TPC output group 2
Section 9 Programmable Timing Pattern Controller
9.2.7
Next Data Enable Register A (NDERA)
NDERA is an 8-bit readable/writable register that enables or disables TPC output groups 1 and 0
(TP7 to TP0) on a bit-by-bit basis.
Bit
6
7
NDER7
5
NDER6 NDER5
4
2
3
NDER4 NDER3
NDER2
1
0
NDER1 NDER0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next data enable 7 to 0
These bits enable or disable
TPC output groups 1 and 0
If a bit is enabled for TPC output by NDERA, then when the ITU compare match event selected in
the TPC output control register (TPCR) occurs, the NDRA value is automatically transferred to
the corresponding PADR bit, updating the output value. If TPC output is disabled, the bit value is
not transferred from NDRA to PADR and the output value does not change.
NDERA is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Next Data Enable 7 to 0 (NDER7 to NDER0): These bits enable or disable TPC
output groups 1 and 0 (TP7 to TP0) on a bit-by-bit basis.
Bits 7 to 0
NDER7 to NDER0
0
1
Description
TPC outputs TP7 to TP0 are disabled
(NDR7 to NDR0 are not transferred to PA7 to PA0)
(Initial value)
TPC outputs TP7 to TP0 are enabled
(NDR7 to NDR0 are transferred to PA7 to PA0)
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Section 9 Programmable Timing Pattern Controller
9.2.8
Next Data Enable Register B (NDERB)
NDERB is an 8-bit readable/writable register that enables or disables TPC output groups 3 and 2
(TP15 to TP8)* on a bit-by-bit basis.
Bit
6
7
4
5
2
3
1
0
NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER8
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next data enable 15 to 8
These bits enable or disable
TPC output groups 3 and 2
If a bit is enabled for TPC output by NDERB, then when the ITU compare match event selected in
the TPC output control register (TPCR) occurs, the NDRB value is automatically transferred to the
corresponding PBDR bit, updating the output value. If TPC output is disabled, the bit value is not
transferred from NDRB to PBDR and the output value does not change.
NDERB is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 0—Next Data Enable 15 to 8 (NDER15 to NDER8): These bits enable or disable TPC
output groups 3 and 2 (TP15 to TP8)* on a bit-by-bit basis.
Bits 7 to 0
NDER15 to NDER8
0
1
Description
TPC outputs TP15 to TP8 are disabled
(NDR15 to NDR8 are not transferred to PB7 to PB0)
(Initial value)
TPC outputs TP15 to TP8 are enabled
(NDR15 to NDR8 are transferred to PB7 to PB0)
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output to the outside.
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Section 9 Programmable Timing Pattern Controller
9.2.9
TPC Output Control Register (TPCR)
TPCR is an 8-bit readable/writable register that selects output trigger signals for TPC outputs on a
group-by-group basis.
Bit
7
6
5
4
3
2
1
0
G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Group 3 compare
match select 1 and 0
These bits select
the compare match Group 2 compare
event that triggers match select 1 and 0
TPC output group 3 These bits select
(TP15 to TP12)*
the compare match
Group 1 compare
event that triggers
match select 1 and 0
TPC output group 2
These bits select
(TP11 to TP8)
the compare match
Group 0 compare
event that triggers
match select 1 and 0
TPC output group 1 These bits select
(TP7 to TP4)
the compare match
event that triggers
TPC output group 0
(TP3 to TP0)
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output to the outside.
TPCR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
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Section 9 Programmable Timing Pattern Controller
Bits 7 and 6—Group 3 Compare Match Select 1 and 0 (G3CMS1, G3CMS0): These bits
select the compare match event that triggers TPC output group 3 (TP15 to TP12)*.
Bit 7
G3CMS1
Bit6
G3CMS0
0
0
TPC output group 3 (TP15 to TP12)* is triggered by compare match
in ITU channel 0
1
TPC output group 3 (TP15 to TP12)* is triggered by compare match
in ITU channel 1
0
TPC output group 3 (TP15 to TP12)* is triggered by compare match
in ITU channel 2
1
TPC output group 3 (TP15 to TP12)* is triggered by compare match
in ITU channel 3
(Initial value)
1
Note:
*
Description
Since this LSI does not have a TP14 pin, the TP14 signal cannot be output off-chip.
Bits 5 and 4—Group 2 Compare Match Select 1 and 0 (G2CMS1, G2CMS0): These bits
select the compare match event that triggers TPC output group 2 (TP11 to TP8).
Bit 5
G2CMS1
Bit4
G2CMS0
0
0
TPC output group 2 (TP11 to TP8) is triggered by compare match in
ITU channel 0
1
TPC output group 2 (TP11 to TP8) is triggered by compare match in
ITU channel 1
0
TPC output group 2 (TP11 to TP8) is triggered by compare match in
ITU channel 2
1
TPC output group 2 (TP11 to TP8) is triggered by compare match in
ITU channel 3
(Initial value)
1
Description
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Section 9 Programmable Timing Pattern Controller
Bits 3 and 2—Group 1 Compare Match Select 1 and 0 (G1CMS1, G1CMS0): These bits
select the compare match event that triggers TPC output group 1 (TP7 to TP4).
Bit 3
G1CMS1
Bit2
G1CMS0
0
0
TPC output group 1 (TP7 to TP4) is triggered by compare match in
ITU channel 0
1
TPC output group 1 (TP7 to TP4) is triggered by compare match in
ITU channel 1
0
TPC output group 1 (TP7 to TP4) is triggered by compare match in
ITU channel 2
1
TPC output group 1 (TP7 to TP4) is triggered by compare match in
ITU channel 3
(Initial value)
1
Description
Bits 1 and 0—Group 0 Compare Match Select 1 and 0 (G0CMS1, G0CMS0): These bits
select the compare match event that triggers TPC output group 0 (TP3 to TP0).
Bit1
G0CMS1
Bit0
G0CMS0
0
0
TPC output group 0 (TP3 to TP0) is triggered by compare match in
ITU channel 0
1
TPC output group 0 (TP3 to TP0) is triggered by compare match in
ITU channel 1
0
TPC output group 0 (TP3 to TP0) is triggered by compare match in
ITU channel 2
1
TPC output group 0 (TP3 to TP0) is triggered by compare match in
ITU channel 3
(Initial value)
1
Description
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Section 9 Programmable Timing Pattern Controller
9.2.10
TPC Output Mode Register (TPMR)
TPMR is an 8-bit readable/writable register that selects normal or non-overlapping TPC output for
each group.
Bit
7
6
5
4
—
—
—
—
3
2
G3NOV G2NOV
1
0
G1NOV G0NOV
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
Group 3 non-overlap
Selects non-overlapping TPC
output for group 3 (TP15 to TP12)*
Group 2 non-overlap
Selects non-overlapping TPC
output for group 2 (TP11 to TP8 )
Group 1 non-overlap
Selects non-overlapping TPC
output for group 1 (TP7 to TP4 )
Group 0 non-overlap
Selects non-overlapping TPC
output for group 0 (TP3 to TP0 )
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output to the outside.
The output trigger period of a non-overlapping TPC output waveform is set in general register B
(GRB) in the ITU channel selected for output triggering. The non-overlap margin is set in general
register A (GRA). The output values change at compare match A and B. For details see section
9.3.4, Non-Overlapping TPC Output.
TPMR is initialized to H'F0 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 4—Reserved: These bits cannot be modified and are always read as 1.
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Section 9 Programmable Timing Pattern Controller
Bit 3—Group 3 Non-Overlap (G3NOV): Selects normal or non-overlapping TPC output for
group 3 (TP15 to TP12)*.
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output off-chip.
Bit 3
G3NOV
Description
0
Normal TPC output in group 3 (output values change at compare match A in the
selected ITU channel)
(Initial value)
1
Non-overlapping TPC output in group 3 (independent 1 and 0 output at compare
match A and B in the selected ITU channel)
Bit 2—Group 2 Non-Overlap (G2NOV): Selects normal or non-overlapping TPC output for
group 2 (TP11 to TP8).
Bit 2
G2NOV
Description
0
Normal TPC output in group 2 (output values change at compare match A in the
selected ITU channel)
(Initial value)
1
Non-overlapping TPC output in group 2 (independent 1 and 0 output at compare
match A and B in the selected ITU channel)
Bit 1—Group 1 Non-Overlap (G1NOV): Selects normal or non-overlapping TPC output for
group 1 (TP7 to TP4).
Bit 1
G1NOV
Description
0
Normal TPC output in group 1 (output values change at compare match A in the
selected ITU channel)
(Initial value)
1
Non-overlapping TPC output in group 1 (independent 1 and 0 output at compare
match A and B in the selected ITU channel)
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Section 9 Programmable Timing Pattern Controller
Bit 0—Group 0 Non-Overlap (G0NOV): Selects normal or non-overlapping TPC output for
group 0 (TP3 to TP0).
Bit 0
G0NOV
Description
0
Normal TPC output in group 0 (output values change at compare match A in the
selected ITU channel)
(Initial value)
1
Non-overlapping TPC output in group 0 (independent 1 and 0 output at compare
match A and B in the selected ITU channel)
9.3
Operation
9.3.1
Overview
When corresponding bits in PADDR or PBDDR and NDERA or NDERB are set to 1, TPC output
is enabled. The TPC output initially consists of the corresponding PADR or PBDR contents.
When a compare-match event selected in TPCR occurs, the corresponding NDRA or NDRB bit
contents are transferred to PADR or PBDR to update the output values.
Figure 9.2 illustrates the TPC output operation. Table 9.3 summarizes the TPC operating
conditions.
DDR
NDER
Q
Q
Output trigger signal
C
Q
DR
D
Q NDR
TPC output pin
Figure 9.2 TPC Output Operation
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REJ09B0353-0300
D
Internal
data bus
Section 9 Programmable Timing Pattern Controller
Table 9.3
TPC Operating Conditions
NDER
DDR
Pin Function
0
0
Generic input port
1
Generic output port
0
Generic input port (but the DR bit is a read-only bit, and when compare
match occurs, the NDR bit value is transferred to the DR bit)
1
TPC pulse output
1
Sequential output of up to 16-bit patterns is possible by writing new output data to NDRA and
NDRB before the next compare match. For information on non-overlapping operation, see section
9.3.4, Non-Overlapping TPC Output.
9.3.2
Output Timing
If TPC output is enabled, NDRA/NDRB contents are transferred to PADR/PBDR and output
when the selected compare match event occurs. Figure 9.3 shows the timing of these operations
for the case of normal output in groups 0 and 1, triggered by compare match A.
φ
TCNT
N
GRA
N+1
N
Compare
match A signal
NDRA
n
PADR
m
n
TP0 to TP7
m
n
Figure 9.3 Timing of Transfer of Next Data Register Contents and Output (Example)
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Section 9 Programmable Timing Pattern Controller
9.3.3
Normal TPC Output
Sample Setup Procedure for Normal TPC Output
Figure 9.4 shows a sample procedure for setting up normal TPC output.
Normal TPC output
Select GR functions
1
Set GRA value
2
Select counting operation
3
Select interrupt request
4
Set initial output data
5
Select port output
6
Enable TPC output
7
Select TPC output trigger
8
Set next TPC output data
9
Start counter
10
ITU setup
Port and
TPC setup
ITU setup
Compare match?
1.
Set TIOR to make GRA an output compare
register (with output inhibited).
2. Set the TPC output trigger period.
3. Select the counter clock source with bits
TPSC2 to TPSC0 in TCR. Select the counter
clear source with bits CCLR1 and CCLR0.
4. Enable the IMFA interrupt in TIER.
5. Set the initial output values in the DR bits
of the input/output port pins to be used for
TPC output.
6. Set the DDR bits of the input/output port
pins to be used for TPC output to 1.
7. Set the NDER bits of the pins to be used for
TPC output to 1.
8. Select the ITU compare match event to be
used as the TPC output trigger in TPCR.
9. Set the next TPC output values in the NDR bits.
10. Set the STR bit to 1 in TSTR to start the
timer counter.
11. At each IMFA interrupt, set the next output
values in the NDR bits.
No
Yes
Set next TPC output data
11
Figure 9.4 Setup Procedure for Normal TPC Output (Example)
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Section 9 Programmable Timing Pattern Controller
Example of Normal TPC Output (Example of Five-Phase Pulse Output)
Figure 9.5 shows an example in which the TPC is used for cyclic five-phase pulse output.
TCNT value
Compare match
TCNT
GRA
Time
H'0000
NDRA
80
PADR
00
C0
80
40
C0
60
40
20
60
30
20
10
30
18
10
08
18
88
08
80
88
C0
80
40
C0
TP7
TP6
TP5
TP4
TP3
•
•
•
•
The ITU channel to be used as the output trigger channel is set up so that GRA is an output compare
register and the counter will be cleared by compare match A. The trigger period is set in GRA.
The IMIEA bit is set to 1 in TIER to enable the compare match A interrupt.
H'F8 is written in PADDR and NDERA, and bits G1CMS1, G1CMS0, G0CMS1, and G0CMS0 are set in
TPCR to select compare match in the ITU channel set up in step 1 as the output trigger.
Output data H'80 is written in NDRA.
The timer counter in this ITU channel is started. When compare match A occurs, the NDRA contents
are transferred to PADR and output. The compare match/input capture A (IMFA) interrupt service routine
writes the next output data (H'C0) in NDRA.
Five-phase overlapping pulse output (one or two phases active at a time) can be obtained by writing
H'40, H'60, H'20, H'30, H'10, H'18, H'08, H'88... at successive IMFA interrupts.
Figure 9.5 Normal TPC Output Example (Five-Phase Pulse Output)
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Section 9 Programmable Timing Pattern Controller
9.3.4
Non-Overlapping TPC Output
Sample Setup Procedure for Non-Overlapping TPC Output
Figure 9.6 shows a sample procedure for setting up non-overlapping TPC output.
Non-overlapping
TPC output
Select GR functions
1
Set GR values
2
Select counting operation
3
Select interrupt requests
4
Set initial output data
5
Set up TPC output
6
Enable TPC transfer
7
Select TPC transfer trigger
8
Select non-overlapping groups
9
Set next TPC output data
10
Start counter
11
ITU setup
Port and
TPC setup
ITU setup
Compare match A?
1. Set TIOR to make GRA and GRB output
compare registers (with output inhibited).
2. Set the TPC output trigger period in GRB
and the non-overlap margin in GRA.
3. Select the counter clock source with bits
TPSC2 to TPSC0 in TCR. Select the counter
clear source with bits CCLR1 and CCLR0.
4. Enable the IMFA interrupt in TIER.
5. Set the initial output values in the DR bits
of the input/output port pins to be used for
TPC output.
6. Set the DDR bits of the input/output port pins
to be used for TPC output to 1.
7. Set the NDER bits of the pins to be used for
TPC output to 1.
8. In TPCR, select the ITU compare match
event to be used as the TPC output trigger.
9. In TPMR, select the groups that will operate
in non-overlap mode.
10. Set the next TPC output values in the NDR
bits.
11. Set the STR bit to 1 in TSTR to start the timer
counter.
12. At each IMFA interrupt, write the next output
value in the NDR bits.
No
Yes
Set next TPC output data
12
Figure 9.6 Setup Procedure for Non-Overlapping TPC Output (Example)
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Section 9 Programmable Timing Pattern Controller
Example of Non-Overlapping TPC Output
(Example of Four-Phase Complementary Non-Overlapping Output)
Figure 9.7 shows an example of the use of TPC output for four-phase complementary nonoverlapping pulse output.
TCNT value
GRB
TCNT
GRA
Time
H'0000
NDRA
95
PADR
00
65
95
59
05
65
56
41
59
95
50
56
65
14
95
05
65
Non-overlap margin
TP7
TP6
TP5
TP4
TP3
TP2
TP1
TP0
• The ITU channel to be used as the output trigger channel is set up so that GRA and GRB are output
compare registers and the counter will be cleared by compare match B. The TPC output trigger
period is set in GRB. The non-overlap margin is set in GRA. The IMIEA bit is set to 1 in TIER to enable
IMFA interrupts.
• H'FF is written in PADDR and NDERA, and bits G1CMS1, G1CMS0, G0CMS1, and G0CMS0 are set in
TPCR to select compare match in the ITU channel set up in step 1 as the output trigger.
Bits G1NOV and G0NOV are set to 1 in TPMR to select non-overlapping output. Output data H'95 is
written in NDRA.
• The timer counter in this ITU channel is started. When compare match B occurs, outputs change from
1 to 0. When compare match A occurs, outputs change from 0 to 1 (the change from 0 to 1 is delayed
by the value of GRA). The IMFA interrupt service routine writes the next output data (H'65) in NDRA.
• Four-phase complementary non-overlapping pulse output can be obtained by writing H'59, H'56, H'95...
at successive IMFA interrupts.
Figure 9.7 Non-Overlapping TPC Output Example (Four-Phase Complementary
Non-Overlapping Pulse Output)
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Section 9 Programmable Timing Pattern Controller
9.3.5
TPC Output Triggering by Input Capture
TPC output can be triggered by ITU input capture as well as by compare match. If GRA functions
as an input capture register in the ITU channel selected in TPCR, TPC output will be triggered by
the input capture signal. Figure 9.8 shows the timing.
φ
TIOC pin
Input capture
signal
N
NDR
M
DR
N
Figure 9.8 TPC Output Triggering by Input Capture (Example)
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Section 9 Programmable Timing Pattern Controller
9.4
Usage Notes
9.4.1
Operation of TPC Output Pins
TP0 to TP15* are multiplexed with ITU pin functions. When ITU output is enabled, the
corresponding pins cannot be used for TPC output. The data transfer from NDR bits to DR bits
takes place, however, regardless of the usage of the pin.
Pin functions should be changed only under conditions in which the output trigger event will not
occur.
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output to the outside.
9.4.2
Note on Non-Overlapping Output
During non-overlapping operation, the transfer of NDR bit values to DR bits takes place as
follows.
1. NDR bits are always transferred to DR bits at compare match A.
2. At compare match B, NDR bits are transferred only if their value is 0. Bits are not transferred
if their value is 1.
Figure 9.9 illustrates the non-overlapping TPC output operation.
DDR
NDER
Q
Q
Compare match A
Compare match B
C
Q
DR
D
Q NDR
D
TPC output pin
Figure 9.9 Non-Overlapping TPC Output
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Section 9 Programmable Timing Pattern Controller
Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before
compare match A. NDR contents should not be altered during the interval from compare match B
to compare match A (the non-overlap margin).
This can be accomplished by having the IMFA interrupt service routine write the next data in
NDR, or by having the IMFA interrupt activate the DMAC. The next data must be written before
the next compare match B occurs.
Figure 9.10 shows the timing relationships.
Compare
match A
Compare
match B
NDR write
NDR write
NDR
DR
0 output 0/1 output
0 output
Write to NDR
in this interval
Do not write
to NDR in this
interval
0/1 output
Write to NDR
in this interval
Do not write
to NDR in this
interval
Figure 9.10 Non-Overlapping Operation and NDR Write Timing
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Section 10 Watchdog Timer
Section 10 Watchdog Timer
10.1
Overview
The H8/3039 Group has an on-chip watchdog timer (WDT). The WDT has two selectable
functions: it can operate as a watchdog timer to supervise system operation, or it can operate as an
interval timer. As a watchdog timer, it generates a reset signal for the H8/3039 Group chip if a
system crash allows the timer counter (TCNT) to overflow before being rewritten. In interval
timer operation, an interval timer interrupt is requested at each TCNT overflow.
10.1.1
Features
WDT features are listed below.
• Selection of eight counter clock sources
φ/2, φ/32, φ/64, φ/128, φ/256, φ/512, φ/2048, or φ/4096
• Interval timer option
• Timer counter overflow generates a reset signal or interrupt.
The reset signal is generated in watchdog timer operation. An interval timer interrupt is
generated in interval timer operation.
• Watchdog timer reset signal resets the entire H8/3039 Group chip internally, and can also be
output externally.*
The reset signal generated by timer counter overflow during watchdog timer operation resets
the entire H8/3039 Group internally. An external reset signal can be output from the RESO pin
to reset other system devices simultaneously.
Note: * The RESO pin of the mask ROM version is the dedicated FWE input pin of the FZTAT version. Therefore, the F-ZTAT version cannot output the reset signal to the
outside.
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Section 10 Watchdog Timer
10.1.2
Block Diagram
Figure 10.1 shows a block diagram of the WDT.
Overflow
TCNT
Interrupt signal
(interval timer)
Interrupt
control
TCSR
Reset control
Internal
data bus
Internal clock sources
φ/2
RSTCSR
Reset
(internal, external)
Read/
write
control
φ/32
φ/64
Clock
Clock
selector
φ/128
φ/256
φ/512
Legend:
TCNT:
Timer counter
TCSR:
Timer control/status register
RSTCSR: Reset control/status register
φ/2048
φ/4096
Figure 10.1 WDT Block Diagram
10.1.3
Pin Configuration
Table 10.1 describes the WDT output pin.*
Note: * Shows the mask ROM version pin. The F-ZTAT does not have any pins used by the
WDT. For F-ZTAT version, see section 15.9, Notes on Flash Memory
Programming/Erasing.
Table 10.1 WDT Pin
Name
Abbreviation
I/O
Function
Reset output
RESO
Output*
External output of the watchdog timer reset signal
Note:
*
Open-drain output. Externally pull-up to Vcc whether or not the reset output is used
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Section 10 Watchdog Timer
10.1.4
Register Configuration
Table 10.2 summarizes the WDT registers.
Table 10.2 WDT Registers
1
Address*
Write*
2
H'FFA8
H'FFAA
Read
Name
Abbreviation
R/W
Initial Value
H'FFA8
Timer control/status register
TCSR
R/(W)*
H'FFA9
Timer counter
TCNT
R/W
H'FFAB
Reset control/status register
RSTCSR
3
H'18
H'00
R/(W)*
3
H'3F
Notes: 1. Lower 16 bits of the address.
2. Write word data starting at this address.
3. Only 0 can be written in bit 7 to clear the flag.
10.2
Register Descriptions
10.2.1
Timer Counter (TCNT)
TCNT is an 8-bit readable and writable* up-counter.
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from an internal
clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from
H'FF to H'00), the OVF bit is set to 1 in TCSR. TCNT is initialized to H'00 by a reset and when
the TME bit is cleared to 0.
Note: * TCNT is write-protected by a password. For details see section 10.2.4, Notes on
Register Access.
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Section 10 Watchdog Timer
10.2.2
Timer Control/Status Register (TCSR)
TCSR is an 8-bit readable and writable* register. Its functions include selecting the timer mode
and clock source.
Note: * TCSR is write-protected by a password. For details see section 10.2.4, Notes on
Register Access.
Bit
7
6
5
4
3
2
1
0
OVF
WT/IT
TME
—
—
CKS2
CKS1
CKS0
Initial value
0
0
0
1
1
0
0
0
Read/Write
R/(W)*
R/W
R/W
—
—
R/W
R/W
R/W
Clock select
These bits select the
TCNT clock source
Reserved bits
Timer enable
Selects whether TCNT runs or halts
Timer mode select
Selects the mode
Overflow flag
Status flag indicating overflow
Note: * Only 0 can be written to clear the flag.
Bits 7 to 5 are initialized to 0 by a reset and in standby mode. Bits 2 to 0 are initialized to 0 by a
reset. In software standby mode bits 2 to 0 are not initialized, but retain their previous values.
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Section 10 Watchdog Timer
Bit 7—Overflow Flag (OVF): This status flag indicates that the timer counter has overflowed
from H'FF to H'00.
Bit 7
OVF
Description
0
[Clearing condition]
Cleared by reading OVF when OVF = 1, then writing 0 in OVF
1
(Initial value)
[Setting condition]
Set when TCNT changes from H'FF to H'00
Bit 6—Timer Mode Select (WT/IT
IT):
IT Selects whether to use the WDT as a watchdog timer or
interval timer. If used as an interval timer, the WDT generates an interval timer interrupt request
when TCNT overflows. If used as a watchdog timer, the WDT generates a reset signal when
TCNT overflows.
Bit 6
WT/IT
IT
Description
0
Interval timer: requests interval timer interrupts
1
Watchdog timer: generates a reset signal
(Initial value)
Bit 5—Timer Enable (TME): Selects whether TCNT runs or is halted.
Bit 5
TME
Description
0
TCNT is initialized to H'00 and halted
1
TCNT is counting
(Initial value)
Bits 4 and 3—Reserved: These bits cannot be modified and are always read as 1.
Bits 2 to 0—Clock Select 2 to 0 (CKS2/1/0): These bits select one of eight internal clock sources,
obtained by prescaling the system clock (φ), for input to TCNT.
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Section 10 Watchdog Timer
Bit 2
CKS2
Bit 1
CKS1
Bit 0
CKS0
Description
0
0
0
φ/2
1
φ/32
1
1
0
1
10.2.3
(Initial value)
0
φ/64
1
φ/128
0
φ/256
1
φ/512
0
φ/2048
1
φ/4096
Reset Control/Status Register (RSTCSR)
RSTCSR is an 8-bit readable and writable* register that indicates when a reset signal has been
generated by watchdog timer overflow, and controls external output of the reset signal.
Note: * RSTCSR is write-protected by a password. For details see section 10.2.4, Notes on
Register Access.
7
6
5
4
3
2
1
0
WRST
RSTOE
—
—
—
—
—
—
Initial value
0
0
1
1
1
1
1
1
Read/Write
R/(W)*1
R/W
—
—
—
—
—
—
Bit
Reserved bits
Reset output enable*2
Enables or disables external output of the reset signal
Watchdog timer reset
Indicates that a reset signal has been generated
Notes: 1. Only 0 can be written in bit 7 to clear the flag.
2. With the mask ROM version, enable and disable can be set. With the F-ZTAT version,
do not set enable.
Bits 7 and 6 are initialized by input of a reset signal at the RES pin. They are not initialized by
reset signals generated by watchdog timer overflow.
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Section 10 Watchdog Timer
Bit 7—Watchdog Timer Reset (WRST): During watchdog timer operation, this bit indicates that
TCNT has overflowed and generated a reset signal. This reset signal resets the entire chip
1
internally. If bit RSTOE is set to 1, this reset signal is also output (low) at the RESO pin* to
initialize external system devices.
Bit 7
WRST
Description
0
[Clearing conditions]
(Initial value)
(1) Cleared to 0 by reset signal input at RES pin
(2) Cleared by reading WRST when WRST = 1, then writing 0 in WERST
1
[Setting condition]
Set when TCNT overflow generates a reset signal during watchdog timer operation
Bit 6—Reset Output Enable (RSTOE): Enables or disables external output at the RESO pin* of
the reset signal generated if TCNT overflows during watchdog timer operation.
1
Bit 6
RSTOE
Description
0
Reset signal is not output externally
1
Reset signal is output externally*
(Initial value)
2
Notes: 1. Mask ROM version. Dedicated FWE input pin for F-ZTAT version.
2. Mask ROM version. Do not set to 1 with the F-ZTAT version.
Bits 5 to 0—Reserved: These bits cannot be modified and are always read as 1.
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Section 10 Watchdog Timer
10.2.4
Notes on Register Access
The watchdog timer's TCNT, TCSR, and RSTCSR registers differ from other registers in being
more difficult to write. The procedures for writing and reading these registers are given below.
Writing to TCNT and TCSR
These registers must be written by a word transfer instruction. They cannot be written by byte
instructions. Figure 10.2 shows the format of data written to TCNT and TCSR. TCNT and TCSR
both have the same write address. The write data must be contained in the lower byte of the
written word. The upper byte must contain H'5A (password for TCNT) or H'A5 (password for
TCSR). This transfers the write data from the lower byte to TCNT or TCSR.
15
TCNT write
Address
H'FFA8*
15
TCSR write
Address
8 7
H'5A
H'FFA8*
0
Write data
8 7
H'A5
0
Write data
Note: * Lower 16 bits of the address.
Figure 10.2 Format of Data Written to TCNT and TCSR
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Section 10 Watchdog Timer
Writing to RSTCSR
RSTCSR must be written by a word transfer instruction. It cannot be written by byte transfer
instructions. Figure 10.3 shows the format of data written to RSTCSR. To write 0 in the WRST
bit, the write data must have H'A5 in the upper byte and H'00 in the lower byte. The H'00 in the
lower byte clears the WRST bit in RSTCSR to 0. To write to the RSTOE bit, the upper byte must
contain H'5A and the lower byte must contain the write data. Writing this word transfers a write
data value into the RSTOE bit.
15
Writing 0 in WRST bit
Address
H'FFAA*
H'A5
15
Writing to RSTOE bit
Address
8 7
H'FFAA*
0
H'00
8 7
H'5A
0
Write data
Note: * Lower 16 bits of the address.
Figure 10.3 Format of Data Written to RSTCSR
Reading TCNT, TCSR, and RSTCSR
These registers are read like other registers. Byte access instructions can be used. The read
addresses are H'FFA8 for TCSR, H'FFA9 for TCNT, and H'FFAB for RSTCSR, as listed in table
10.3.
Table 10.3 Read Addresses of TCNT, TCSR, and RSTCSR
Address*
Register
H'FFA8
TCSR
H'FFA9
TCNT
H'FFAB
RSTCSR
Note:
*
Lower 16 bits of the address.
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Section 10 Watchdog Timer
10.3
Operation
Operations when the WDT is used as a watchdog timer and as an interval timer are described
below.
10.3.1
Watchdog Timer Operation
Figure 10.4 illustrates watchdog timer operation. To use the WDT as a watchdog timer, set the
WT/IT and TME bits to 1 in TCSR. Software must prevent TCNT overflow by rewriting the
TCNT value (normally by writing H'00) before overflow occurs. If TCNT fails to be rewritten and
overflows due to a system crash etc., the H8/3039 Group is internally reset for a duration of 518
states.
The watchdog reset signal can be externally output from the RESO pin* to reset external system
devices. The reset signal is output externally for 132 states. External output can be enabled or
disabled by the RSTOE bit in RSTCSR.
A watchdog reset has the same vector as a reset generated by input at the RES pin. Software can
distinguish a RES reset from a watchdog reset by checking the WRST bit in RSTCSR.
If a RES reset and a watchdog reset occur simultaneously, the RES reset takes priority.
Note: * Mask ROM version.
Since the RES pin is a dedicated FWE input pin with the F-ZTAT version, the reset
signal cannot be output to the outside.
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Section 10 Watchdog Timer
WDT overflow
H'FF
TME set to 1
TCNT count
value
H'00
OVF = 1
Start
H'00 written
in TCNT
Internal
reset signal
Reset
H'00 written
in TCNT
518 states
RESO
132 states
Figure 10.4 Watchdog Timer Operation (Mask ROM Version)
10.3.2
Interval Timer Operation
Figure 10.5 illustrates interval timer operation. To use the WDT as an interval timer, clear bit
WT/IT to 0 and set bit TME to 1 in TCSR. An interval timer interrupt request is generated at each
TCNT overflow. This function can be used to generate interval timer interrupts at regular
intervals.
H'FF
TCNT
count value
Time t
H'00
WT/ IT = 0
TME = 1
Interval
timer
interrupt
Interval
timer
interrupt
Interval
timer
interrupt
Interval
timer
interrupt
Interval
timer
interrupt
Figure 10.5 Interval Timer Operation
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Section 10 Watchdog Timer
10.3.3
Timing of Setting of Overflow Flag (OVF)
Figure 10.6 shows the timing of setting of the OVF flag in TCSR. The OVF flag is set to 1 when
TCNT overflows. At the same time, a reset signal is generated in watchdog timer operation, or an
interval timer interrupt is generated in interval timer operation.
φ
TCNT
H'FF
H'00
Overflow signal
OVF
Figure 10.6 Timing of Setting of OVF
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Section 10 Watchdog Timer
10.3.4
Timing of Setting of Watchdog Timer Reset Bit (WRST)
The WRST bit in RSTCSR is valid when bits WT/IT and TME are both set to 1 in TCSR.
Figure 10.7 shows the timing of setting of WRST and the internal reset timing. The WRST bit is
set to 1 when TCNT overflows and OVF is set to 1. At the same time an internal reset signal is
generated for the entire H8/3039 Group chip. This internal reset signal clears OVF to 0, but the
WRST bit remains set to 1. The reset routine must therefore clear the WRST bit.
φ
H'FF
TCNT
H'00
Overflow signal
OVF
WDT internal
reset
WRST
Figure 10.7 Timing of Setting of WRST Bit and Internal Reset
10.4
Interrupts
During interval timer operation, an overflow generates an interval timer interrupt (WOVI). The
interval timer interrupt is requested whenever the OVF bit is set to 1 in TCSR.
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Section 10 Watchdog Timer
10.5
Usage Notes
Contention between TCNT Write and Increment
If a timer counter clock pulse is generated during the T3 state of a write cycle to TCNT, the write
takes priority and the timer count is not incremented. See figure 10.8.
Write cycle: CPU writes to TCNT
T1
T2
T3
φ
TCNT
Internal write
signal
TCNT input
clock
TCNT
N
M
Counter write data
Figure 10.8 Contention between TCNT Write and Increment
Changing CKS2 to CKS0 Values
Halt TCNT by clearing the TME bit to 0 in TCSR before changing the values of bits CKS2 to
CKS0.
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Section 11 Serial Communication Interface
Section 11 Serial Communication Interface
11.1
Overview
The H8/3039 Group has a serial communication interface (SCI) with two independent channels.
The two channels are functionally identical. The SCI can communicate in asynchronous or
synchronous mode. It also has a multiprocessor communication function for serial communication
among two or more processors.
When the SCI is not used, it can be halted to conserve power. Each SCI channel can be halted
independently. For details see section 17.6, Module Standby Function.
Channel 0 (SCI0) also has a smart card interface function conforming to the ISO/IEC7816-3
(Identification Card) standard. This function supports serial communication with a smart card. For
details, see section 12, Smart Card Interface.
11.1.1
Features
SCI features are listed below.
• Selection of asynchronous or synchronous mode for serial communication
a. Asynchronous mode
Serial data communication is synchronized one character at a time. The SCI can communicate
with a universal asynchronous receiver/transmitter (UART), asynchronous communication
interface adapter (ACIA), or other chip that employs standard asynchronous serial
communication. It can also communicate with two or more other processors using the
multiprocessor communication function. There are twelve selectable serial data
communication formats.
Data length:
7 or 8 bits
Stop bit length:
1 or 2 bits
Parity bit:
even, odd, or none
Multiprocessor bit:
1 or 0
Receive error detection: parity, overrun, and framing errors
Break detection:
by reading the RxD level directly when a framing error occurs
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Section 11 Serial Communication Interface
b. Synchronous mode
Serial data communication is synchronized with a clock signal. The SCI can communicate with
other chips having a synchronous communication function. There is one serial data
communication format.
Data length:
8 bits
Receive error detection: overrun errors
• Full-duplex communication
The transmitting and receiving sections are independent, so the SCI can transmit and receive
simultaneously. The transmitting and receiving sections are both double-buffered, so serial
data can be transmitted and received continuously.
• Built-in baud rate generator with selectable bit rates
• Selectable transmit/receive clock sources: internal clock from baud rate generator, or external
clock from the SCK pin.
• Four types of interrupts
Transmit-data-empty, transmit-end, receive-data-full, and receive-error interrupts are requested
independently.
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Section 11 Serial Communication Interface
11.1.2
Block Diagram
Bus interface
Figure 11.1 shows a block diagram of the SCI.
Module data bus
RxD
RDR
TDR
RSR
TSR
SSR
SCR
SMR
BRR
Transmit/
receive control
TxD
SCK
Parity generation
Parity check
Internal
data bus
Baud rate
generator
φ
φ/4
φ/16
φ/64
Clock
External clock
TEI
TXI
RXI
ERI
Legend:
RSR: Receive shift register
RDR: Receive data register
TSR: Transmit shift register
TDR: Transmit data register
SMR: Serial mode register
SCR: Serial control register
SSR: Serial status register
BRR: Bit rate register
Figure 11.1 SCI Block Diagram
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Section 11 Serial Communication Interface
11.1.3
Input/Output Pins
The SCI has the serial pins for each channel as listed in table 11.1.
Table 11.1 SCI Pins
Channel
Name
Abbreviation
I/O
Function
0
Serial clock pin
SCK0
Input/output
SCI0 clock input/output
Receive data pin
RxD0
Input
SCI0 receive data input
Transmit data pin
TxD0
Output
SCI0 transmit data output
Serial clock pin
SCK1
Input/output
SCI1 clock input/output
Receive data pin
RxD1
Input
SCI1 receive data input
Transmit data pin
TxD1
Output
SCI1 transmit data output
1
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Section 11 Serial Communication Interface
11.1.4
Register Configuration
The SCI has the internal registers as listed in table 11.2. These registers select asynchronous or
synchronous mode, specify the data format and bit rate, and control the transmitter and receiver
sections.
Table 11.2 Registers
Channel
Address*
0
1
1
Name
Abbreviation
R/W
Initial Value
H'FFB0
Serial mode register
SMR
R/W
H'00
H'FFB1
Bit rate register
BRR
R/W
H'FF
H'FFB2
Serial control register
SCR
R/W
H'00
H'FFB3
Transmit data register
TDR
R/W
H'FF
H'FFB4
Serial status register
SSR
R/(W)*
H'FFB5
Receive data register
RDR
R
H'00
H'FFB8
Serial mode register
SMR
R/W
H'00
H'FFB9
Bit rate register
BRR
R/W
H'FF
H'FFBA
Serial control register
SCR
R/W
H'00
H'FFBB
Transmit data register
TDR
R/W
H'FFBC
Serial status register
SSR
R/(W)*
H'FFBD
Receive data register
RDR
R
2
H'84
H'FF
2
H'84
H'00
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written to clear flags.
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Section 11 Serial Communication Interface
11.2
Register Descriptions
11.2.1
Receive Shift Register (RSR)
RSR is an 8-bit register that receives serial data.
Bit
7
6
5
4
3
2
1
0
Read/Write
—
—
—
—
—
—
—
—
The SCI loads serial data input at the RxD pin into RSR in the order received, LSB (bit 0) first,
thereby converting the data to parallel data. When 1 byte has been received, it is automatically
transferred to RDR. The CPU cannot read or write RSR directly.
11.2.2
Receive Data Register (RDR)
RDR is an 8-bit register that stores received serial data.
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
When the SCI finishes receiving 1 byte of serial data, it transfers the received data from RSR into
RDR for storage. RSR is then ready to receive the next data. This double buffering allows data to
be received continuously.
RDR is a read-only register. Its contents cannot be modified by the CPU. RDR is initialized to
H'00 by a reset and in standby mode.
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Section 11 Serial Communication Interface
11.2.3
Transmit Shift Register (TSR)
TSR is an 8-bit register used to transmit serial data.
Bit
7
6
5
4
3
2
1
0
Read/Write
—
—
—
—
—
—
—
—
The SCI loads transmit data from TDR into TSR, then transmits the data serially from the TxD
pin, LSB (bit 0) first. After transmitting one data byte, the SCI automatically loads the next
transmit data from TDR into TSR and starts transmitting it. If the TDRE flag is set to 1 in SSR,
however, the SCI does not load the TDR contents into TSR. The CPU cannot read or write TSR
directly.
11.2.4
Transmit Data Register (TDR)
TDR is an 8-bit register that stores data for serial transmission.
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
When the SCI detects that TSR is empty, it moves transmit data written in TDR from TDR into
TSR and starts serial transmission. Continuous serial transmission is possible by writing the next
transmit data in TDR during serial transmission from TSR.
The CPU can always read and write TDR. TDR is initialized to H'FF by a reset and in standby
mode.
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Section 11 Serial Communication Interface
11.2.5
Serial Mode Register (SMR)
SMR is an 8-bit register that specifies the SCI serial communication format and selects the clock
source for the baud rate generator.
Bit
7
6
5
4
3
2
1
0
C/A
CHR
PE
O/E
STOP
MP
CKS1
CKS0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock select 1/0
These bits select the
baud rate generatorÕs
clock source
Multiprocessor mode
Selects the multiprocessor
function
Stop bit length
Selects the stop bit length
Parity mode
Selects even or odd parity
Parity enable
Selects whether a parity bit is added
Character length
Selects character length in asynchronous mode
Communication mode
Selects asynchronous or synchronous mode
The CPU can always read and write SMR. SMR is initialized to H'00 by a reset and in standby
mode.
Bit 7—Communication Mode (C/A
A): Selects whether the SCI operates in asynchronous or
synchronous mode.
Bit 7
C/A
A
Description
0
Asynchronous mode
1
Synchronous mode
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(Initial value)
Section 11 Serial Communication Interface
Bit 6—Character Length (CHR): Selects 7-bit or 8-bit data length in asynchronous mode. In
synchronous mode the data length is 8 bits regardless of the CHR setting.
Bit 6
CHR
Description
0
8-bit data
1
Note:
(Initial value)
7-bit data*
*
When 7-bit data is selected, the MSB (bit 7) in TDR is not transmitted.
Bit 5—Parity Enable (PE): In asynchronous mode, this bit enables or disables the addition of a
parity bit to transmit data, and the checking of the parity bit in receive data. In synchronous mode
the parity bit is neither added nor checked, regardless of the PE setting.
Bit 5
PE
Description
0
Parity bit not added or checked
1
Note:
(Initial value)
Parity bit added and checked*
*
When PE is set to 1, an even or odd parity bit is added to transmit data according to the
even or odd parity mode selected by the O/E bit, and the parity bit in receive data is
checked to see that it matches the even or odd mode selected by the O/E bit.
Bit 4—Parity Mode (O/E
E): Selects even or odd parity. The O/E bit setting is valid in
asynchronous mode when the PE bit is set to 1 to enable the adding and checking of a parity bit.
The O/E setting is ignored in synchronous mode, or when parity adding and checking is disabled
in asynchronous mode.
Bit 4
O/E
E
Description
0
Even parity*
1
2
Odd parity*
1
(Initial value)
Notes: 1. When even parity is selected, the parity bit added to transmit data makes an even
number of 1s in the transmitted character and parity bit combined. Receive data must
have an even number of 1s in the received character and parity bit combined.
2. When odd parity is selected, the parity bit added to transmit data makes an odd number
of 1s in the transmitted character and parity bit combined. Receive data must have an
odd number of 1s in the received character and parity bit combined.
Bit 3—Stop Bit Length (STOP): Selects one or two stop bits in asynchronous mode. This setting
is used only in asynchronous mode. In synchronous mode no stop bit is added, so the STOP bit
setting is ignored.
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Section 11 Serial Communication Interface
Bit 3
STOP
Description
0
One stop bit*
1
1
Two stop bits*
(Initial value)
2
Notes: 1. One stop bit (with value 1) is added at the end of each transmitted character.
2. Two stop bits (with value 1) are added at the end of each transmitted character.
In receiving, only the first stop bit is checked, regardless of the STOP bit setting. If the second
stop bit is 1 it is treated as a stop bit. If the second stop bit is 0 it is treated as the start bit of the
next incoming character.
Bit 2—Multiprocessor Mode (MP): Selects a multiprocessor format. When a multiprocessor
format is selected, parity settings made by the PE and O/E bits are ignored. The MP bit setting is
valid only in asynchronous mode. It is ignored in synchronous mode.
For further information on the multiprocessor communication function, see section 11.3.3,
Multiprocessor Communication.
Bit 2
MP
Description
0
Multiprocessor function disabled
1
Multiprocessor format selected
(Initial value)
Bits 1 and 0—Clock Select 1 and 0 (CKS1/0): These bits select the clock source of the on-chip
baud rate generator. Four clock sources are available: φ, φ/4, φ/16, and φ/64.
For the relationship between the clock source, bit rate register setting, and baud rate, see section
11.2.8, Bit Rate Register (BRR).
Bit 1
CKS1
Bit 0
CKS0
Description
0
0
φ clock selected
0
1
φ/4 clock selected
1
0
φ/16 clock selected
1
1
φ/64 clock selected
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(Initial value)
Section 11 Serial Communication Interface
11.2.6
Serial Control Register (SCR)
SCR enables the SCI transmitter and receiver, enables or disables serial clock output in
asynchronous mode, enables or disables interrupts, and selects the transmit/receive clock source.
Bit
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock enable 1/0
These bits select the
SCI clock source
Transmit end interrupt enable
Enables or disables transmitend interrupts (TEI)
Multiprocessor interrupt enable
Enables or disables multiprocessor
interrupts
Receive enable
Enables or disables the receiver
Transmit enable
Enables or disables the transmitter
Receive interrupt enable
Enables or disables receive-data-full interrupts (RXI) and
receive-error interrupts (ERI)
Transmit interrupt enable
Enables or disables transmit-data-empty interrupts (TXI)
The CPU can always read and write SCR. SCR is initialized to H'00 by a reset and in standby
mode.
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Section 11 Serial Communication Interface
Bit 7—Transmit Interrupt Enable (TIE): Enables or disables the transmit-data-empty interrupt
(TXI) requested when the TDRE flag in SSR is set to 1 due to transfer of serial transmit data from
TDR to TSR.
Bit 7
TIE
Description
0
Transmit-data-empty interrupt request (TXI) is disabled*
1
Transmit-data-empty interrupt request (TXI) is enabled
Note:
*
(Initial value)
TXI interrupt requests can be cleared by reading the value 1 from the TDRE flag, then
clearing it to 0; or by clearing the TIE bit to 0.
Bit 6—Receive Interrupt Enable (RIE): Enables or disables the receive-data-full interrupt (RXI)
requested when the RDRF flag is set to 1 in SSR due to transfer of serial receive data from RSR to
RDR; also enables or disables the receive-error interrupt (ERI).
Bit 6
RIE
Description
0
Receive-end (RXI) and receive-error (ERI) interrupt requests are disabled*
(Initial value)
1
Receive-end (RXI) and receive-error (ERI) interrupt requests are enabled
Note:
*
RXI and ERI interrupt requests can be cleared by reading the value 1 from the RDRF,
FER, PER, or ORER flag, then clearing it to 0; or by clearing the RIE bit to 0.
Bit 5—Transmit Enable (TE): Enables or disables the start of SCI serial transmitting operations.
Bit 5
TE
Description
0
Transmitting disabled*
1
Transmitting enabled*
1
(Initial value)
2
Notes: 1. The TDRE flag is fixed at 1 in SSR.
2. In the enabled state, serial transmitting starts when the TDRE flag in SSR is cleared to
0 after writing of transmit data into TDR. Select the transmit format in SMR before
setting the TE bit to 1.
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Section 11 Serial Communication Interface
Bit 4—Receive Enable (RE): Enables or disables the start of SCI serial receiving operations.
Bit 4
RE
Description
0
Receiving disabled*
1
Receiving enabled*
1
(Initial value)
2
Notes: 1. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags. These
flags retain their previous values.
2. In the enabled state, serial receiving starts when a start bit is detected in asynchronous
mode, or serial clock input is detected in synchronous mode. Select the receive format
in SMR before setting the RE bit to 1.
Bit 3—Multiprocessor Interrupt Enable (MPIE): Enables or disables multiprocessor interrupts.
The MPIE setting is valid only in asynchronous mode, and only if the MP bit is set to 1 in SMR.
The MPIE setting is ignored in synchronous mode or when the MP bit is cleared to 0.
Bit 3
MPIE
Description
0
Multiprocessor interrupts are disabled (normal receive operation)
(Initial value)
[Clearing conditions]
1
•
The MPIE bit is cleared to 0
•
MPB = 1 in received data
Multiprocessor interrupts are enabled*
Receive-data-full interrupts (RXI), receive-error interrupts (ERI), and setting of the
RDRF, FER, and ORER status flags in SSR are disabled until data with the
multiprocessor bit set to 1 is received.
Note:
*
The SCI does not transfer receive data from RSR to RDR, does not detect receive
errors, and does not set the RDRF, FER, and ORER flags in SSR. When it receives
data in which MPB = 1, the SCI sets the MPB bit to 1 in SSR, automatically clears the
MPIE bit to 0, and enables RXI and ERI interrupts (if the RIE bit is set to 1 in SCR) and
setting of the FER and ORER flags.
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Section 11 Serial Communication Interface
Bit 2—Transmit-End Interrupt Enable (TEIE): Enables or disables the transmit-end interrupt
(TEI) requested if TDR does not contain new transmit data when the MSB is transmitted.
Bit 2
TEIE
Description
0
Transmit-end interrupt requests (TEI) are disabled*
1
Note:
(Initial value)
Transmit-end interrupt requests (TEI) are enabled*
*
TEI interrupt requests can be cleared by reading the value 1 from the TDRE flag in
SSR, then clearing the TDRE flag to 0, thereby also clearing the TEND flag to 0; or by
clearing the TEIE bit to 0.
Bits 1 and 0—Clock Enable 1 and 0 (CKE1/0): These bits select the SCI clock source and
enable or disable clock output from the SCK pin. Depending on the settings of CKE1 and CKE0,
the SCK pin can be used for generic input/output, serial clock output, or serial clock input.
The CKE0 setting is valid only in asynchronous mode, and only when the SCI is internally
clocked (CKE1 = 0). The CKE0 setting is ignored in synchronous mode, or when an external
clock source is selected (CKE1 = 1). After setting the CKE1 and CKE0 bits, select the SCI
operating mode in SMR. For further details on selection of the SCI clock source, see table 11.9.
Bit 1
CKE1
Bit 0
CKE0
Description
0
0
Asynchronous mode
Internal clock, SCK pin available for generic
1
input/output*
Synchronous mode
Internal clock, SCK pin used for serial clock output*
Asynchronous mode
Internal clock, SCK pin used for clock output*
Synchronous mode
Internal clock, SCK pin used for serial clock output
Asynchronous mode
External clock, SCK pin used for clock input*
Synchronous mode
External clock, SCK pin used for serial clock input
Asynchronous mode
External clock, SCK pin used for clock input*
Synchronous mode
External clock, SCK pin used for serial clock input
0
1
1
1
0
1
Notes: 1. Initial value
2. The output clock frequency is the same as the bit rate.
3. The input clock frequency is 16 times the bit rate.
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2
3
3
1
Section 11 Serial Communication Interface
11.2.7
Serial Status Register (SSR)
SSR is an 8-bit register containing multiprocessor bit values, and status flags that indicate the SCI
operating status.
Bit
7
6
5
4
3
2
1
0
TDRE
RDRF
ORER
FER
PER
TEND
MPB
MPBT
Initial value
1
0
0
0
0
1
0
0
Read/Write
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R
R
R/W
Multiprocessor
bit transfer
Value of multiprocessor bit to
be transmitted
Multiprocessor bit
Stores the received
multiprocessor bit value
Transmit end
Status flag indicating end of
transmission
Parity error
Status flag indicating detection of
a receive parity error
Framing error
Status flag indicating detection of a receive
framing error
Overrun error
Status flag indicating detection of a receive overrun error
Receive data register full
Status flag indicating that data has been received and stored in RDR
Transmit data register empty
Status flag indicating that transmit data has been transferred from TDR into
TSR and new data can be written in TDR
Note: * Only 0 can be written to clear the flag.
The CPU can always read and write SSR, but cannot write 1 in the TDRE, RDRF, ORER, PER,
and FER flags. These flags can be cleared to 0 only if they have first been read while set to 1. The
TEND and MPB flags are read-only bits that cannot be written.
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Section 11 Serial Communication Interface
SSR is initialized to H'84 by a reset and in standby mode.
Bit 7—Transmit Data Register Empty (TDRE): Indicates that the SCI has loaded transmit data
from TDR into TSR and the next serial transmit data can be written in TDR.
Bit 7
TDRE
Description
0
TDR contains valid transmit data
[Clearing condition]
Software reads TDRE while it is set to 1, then writes 0
1
TDR does not contain valid transmit data
(Initial value)
[Setting conditions]
•
The chip is reset or enters standby mode
•
The TE bit in SCR is cleared to 0
•
TDR contents are loaded into TSR, so new data can be written in TDR
Bit 6—Receive Data Register Full (RDRF): Indicates that RDR contains new receive data.
Bit 6
RDRF
Description
0
RDR does not contain new receive data
(Initial value)
[Clearing conditions]
1
•
The chip is reset or enters standby mode
•
Software reads RDRF while it is set to 1, then writes 0
•
The DMAC reads data from RDR
RDR contains new receive data
[Setting condition]
When serial data is received normally and transferred from RSR to RDR
Note: The RDR contents and RDRF flag are not affected by detection of receive errors or by
clearing of the RE bit to 0 in SCR. They retain their previous values. If the RDRF flag is still
set to 1 when reception of the next data ends, an overrun error occurs and receive data is
lost.
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Section 11 Serial Communication Interface
Bit 5—Overrun Error (ORER): Indicates that data reception ended abnormally due to an
overrun error.
Bit 5
ORER
Description
0
Receiving is in progress or has ended normally
1
(Initial value)*
[Clearing conditions]
1
•
The chip is reset or enters standby mode
•
Software reads ORER while it is set to 1, then writes 0
A receive overrun error occurred*
2
[Setting condition]
Reception of the next serial data ends when RDRF = 1
Notes: 1. Clearing the RE bit to 0 in SCR does not affect the ORER flag, which retains its
previous value.
2. RDR continues to hold the receive data before the overrun error, so subsequent receive
data is lost. Serial receiving cannot continue while the ORER flag is set to 1. In
synchronous mode, serial transmitting is also disabled.
Bit 4—Framing Error (FER): Indicates that data reception ended abnormally due to a framing
error in asynchronous mode.
Bit 4
FER
Description
0
Receiving is in progress or has ended normally
1
(Initial value)*
[Clearing conditions]
1
•
The chip is reset or enters standby mode
•
Software reads FER while it is set to 1, then writes 0
A receive framing error occurred*
2
[Setting condition]
The stop bit at the end of receive data is checked and found to be 0
Notes: 1. Clearing the RE bit to 0 in SCR does not affect the FER flag, which retains its previous
value.
2. When the stop bit length is 2 bits, only the first bit is checked. The second stop bit is not
checked. When a framing error occurs the SCI transfers the receive data into RDR but
does not set the RDRF flag. Serial receiving cannot continue while the FER flag is set
to 1. In synchronous mode, serial transmitting is also disabled.
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Section 11 Serial Communication Interface
Bit 3—Parity Error (PER): Indicates that data reception ended abnormally due to a parity error
in asynchronous mode.
Bit 3
PER
Description
0
Receiving is in progress or has ended normally*
1
(Initial value)
[Clearing condition]
The chip is reset or enters standby mode. Software reads PER while it is set to 1, then
writes 0
1
A receive parity error occurred*
2
[Setting condition]
The number of 1s in receive data, including the parity bit, does not match the even or
odd parity setting of O/E in SMR
Notes: 1. Clearing the RE bit to 0 in SCR does not affect the PER flag, which retains its previous
value.
2. When a parity error occurs the SCI transfers the receive data into RDR but does not set
the RDRF flag. Serial receiving cannot continue while the PER flag is set to 1. In
synchronous mode, serial transmitting is also disabled.
Bit 2—Transmit End (TEND): Indicates that when the last bit of a serial character was
transmitted TDR did not contain new transmit data, so transmission has ended. The TEND flag is
a read-only bit and cannot be written.
Bit 2
TEND
Description
0
Transmission is in progress
[Clearing condition]
Software reads TDRE while it is set to 1, then writes 0 in the TDRE flag
1
End of transmission
(Initial value)
[Setting conditions]
•
The chip is reset or enters standby mode. The TE bit is cleared to 0 in SCR
•
TDRE is 1 when the last bit of a serial character is transmitted
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Section 11 Serial Communication Interface
Bit 1—Multiprocessor Bit (MPB): Stores the value of the multiprocessor bit in receive data
when a multiprocessor format is used in asynchronous mode. MPB is a read-only bit and cannot
be written.
Bit 1
MPB
Description
0
Multiprocessor bit value in receive data is 0*
1
Multiprocessor bit value in receive data is 1
Note:
*
(Initial value)
If the RE bit is cleared to 0 when a multiprocessor format is selected, MPB retains its
previous value.
Bit 0—Multiprocessor Bit Transfer (MPBT): Stores the value of the multiprocessor bit added to
transmit data when a multiprocessor format is selected for transmitting in asynchronous mode.
The MPBT setting is ignored in synchronous mode, when a multiprocessor format is not selected,
or when the SCI is not transmitting.
Bit 0
MPBT
Description
0
Multiprocessor bit value in transmit data is 0
1
Multiprocessor bit value in transmit data is 1
11.2.8
(Initial value)
Bit Rate Register (BRR)
BRR is an 8-bit register that, together with the CKS1 and CKS0 bits in SMR that select the baud
rate generator clock source, determines the serial communication bit rate.
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The CPU can always read and write BRR. BRR is initialized to H'FF by a reset and in standby
mode.
The baud rate generator is controlled separately for the individual channels, so different values
may be set for each.
Table 11.3 shows examples of BRR settings in asynchronous mode. Table 11.4 shows examples of
BRR settings in synchronous mode.
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Section 11 Serial Communication Interface
Table 11.3 Examples of Bit Rates and BRR Settings in Asynchronous Mode
φ (MHz)
2
2.097152
2.4576
3
Bit Rate
(bits/s)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
110
1
141
0.03
1
148
–0.04
1
174
–0.26
1
212
0.03
150
1
103
0.16
1
108
0.21
1
127
0
1
155
0.16
300
0
207
0.16
0
217
0.21
0
255
0
1
77
0.16
600
0
103
0.16
0
108
0.21
0
127
0
0
155
0.16
1200
0
51
0.16
0
54
–0.70
0
63
0
0
77
0.16
2400
0
25
0.16
0
26
1.14
0
31
0
0
38
0.16
4800
0
12
0.16
0
13
–2.48
0
15
0
0
19
–2.34
9600
0
6
–6.99
0
6
–2.48
0
7
0
0
9
–2.34
19200
0
2
8.51
0
2
13.78
0
3
0
0
4
–2.34
31250
0
1
0
0
1
4.86
0
1
22.88
0
2
0
38400
0
1
–18.62
0
1
–14.67
0
1
0
— —
—
φ (MHz)
3.6864
4
4.9152
5
Bit Rate
(bits/s)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
110
2
64
0.70
2
70
0.03
2
86
0.31
2
88
–0.25
150
1
191
0
1
207
0.16
1
255
0
2
64
0.16
300
1
95
0
1
103
0.16
1
127
0
1
129
0.16
600
0
191
0
0
207
0.16
0
255
0
1
64
0.16
1200
0
95
0
0
103
0.16
0
127
0
0
129
0.16
2400
0
47
0
0
51
0.16
0
63
0
0
64
0.16
4800
0
23
0
0
25
0.16
0
31
0
0
32
–1.36
9600
0
11
0
0
12
0.16
0
15
0
0
15
1.73
19200
0
5
0
0
6
–6.99
0
7
0
0
7
1.73
31250
— —
—
0
3
0
0
4
–1.70
0
4
0
38400
0
0
0
2
8.51
0
3
0
0
3
1.73
2
Rev.3.00 Mar. 26, 2007 Page 350 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
φ (MHz)
6
6.144
7.3728
8
Bit Rate
(bits/s)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
110
2
106
–0.44
2
108
0.08
2
130
–0.07
2
141
0.03
150
1
77
0.16
2
79
0
2
95
0
2
103
0.16
300
1
155
0.16
1
159
0
1
191
0
1
207
0.16
600
1
77
0.16
1
79
0
1
95
0
1
103
0.16
1200
0
155
0.16
0
159
0
0
191
0
0
207
0.16
2400
0
77
0.16
0
79
0
0
95
0
0
103
0.16
4800
0
38
0.16
0
39
0
0
47
0
0
51
0.16
9600
0
19
–2.34
0
19
0
0
23
0
0
25
0.16
19200
0
9
–2.34
0
9
0
0
11
0
0
12
0.16
31250
0
5
0
0
5
2.40
0
6
5.33
0
7
0
38400
0
4
–2.34
0
4
0
0
5
0
0
6
–6.99
φ (MHz)
9.8304
10
12
12.288
Bit Rate
(bits/s)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
110
2
174
–0.26
2
177
–0.25
2
212
0.03
2
217
0.08
150
2
127
0
2
129
0.16
2
155
0.16
2
159
0
300
1
255
0
2
64
0.16
2
77
0.16
2
79
0
600
1
127
0
1
129
0.16
1
155
0.16
1
159
0
1200
0
255
0
1
64
0.16
1
77
0.16
1
79
0
2400
0
127
0
0
129
0.16
0
155
0.16
0
159
0
4800
0
63
0
0
64
0.16
0
77
0.16
0
79
0
9600
0
31
0
0
32
–1.36
0
38
0.16
0
39
0
19200
0
15
0
0
15
1.73
0
19
–2.34
0
19
0
31250
0
9
–1.70
0
9
0
0
11
0
0
11
2.40
38400
0
7
0
0
7
1.73
0
9
–2.34
0
9
0
Rev.3.00 Mar. 26, 2007 Page 351 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
φ (MHz)
14
14.7456
16
18
Bit Rate
(bits/s)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
n
N
Error
(%)
110
2
248
–0.17
3
64
0.70
3
70
0.03
3
79
–0.12
150
2
181
0.16
2
191
0
2
207
0.16
2
233
0.16
300
2
90
0.16
2
95
0
2
103
0.16
2
116
0.16
600
1
181
0.16
1
191
0
1
207
0.16
1
233
0.16
1200
1
90
0.16
1
95
0
1
103
0.16
1
116
0.16
2400
0
181
0.16
0
191
0
0
207
0.16
0
233
0.16
4800
0
90
0.16
0
95
0
0
103
0.16
0
116
0.16
9600
0
45
–0.93
0
47
0
0
51
0.16
0
58
–0.69
19200
0
22
–0.93
0
23
0
0
25
0.16
0
28
1.02
31250
0
11
0
0
14
–1.70
0
15
0
0
17
0.00
38400
0
10
3.57
0
11
0
0
12
0.16
0
14
–2.34
Rev.3.00 Mar. 26, 2007 Page 352 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Table 11.4 Examples of Bit Rates and BRR Settings in Synchronous Mode
φ (MHz)
2
4
8
10
16
18
Bit Rate
(bits/s)
n
N
n
N
n
N
n
N
n
N
n
N
110
3
70
—
—
—
—
—
—
—
—
—
—
250
2
124
2
249
3
124
—
—
3
249
—
—
500
1
249
2
124
2
249
—
—
3
124
3
140
1k
1
124
1
249
2
124
—
—
2
249
3
69
2.5 k
0
199
1
99
1
199
1
249
2
99
2
112
5k
0
99
0
199
1
99
1
124
1
199
1
224
10 k
0
49
0
99
0
199
0
249
1
99
1
112
25 k
0
19
0
39
0
79
0
99
0
159
0
179
50 k
0
9
0
19
0
39
0
49
0
79
0
89
100 k
0
4
0
9
0
19
0
24
0
39
0
44
250 k
0
1
0
3
0
7
0
9
0
15
0
17
500 k
0
0*
0
1
0
3
0
4
0
7
0
8
0
0*
0
1
—
—
0
3
0
4
2M
0
0*
—
—
0
1
—
—
2.5 M
—
—
0
0*
1M
4M
—
—
—
—
0
0*
—
—
Legend:
Blank: No setting available
—:
Setting possible, but error occurs
*:
Continuous transmission/reception not possible
Note: Settings with an error of 1% or less are recommended.
Rev.3.00 Mar. 26, 2007 Page 353 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
The BRR setting is calculated as follows:
Asynchronous mode:
N=
φ
64 × 2
× 10 – 1
6
2n–1
×B
Synchronous mode:
N=
B:
N:
φ:
n:
φ
8×2
× 10 – 1
6
2n–1
×B
Bit rate (bits/s)
BRR setting for baud rate generator (0 ≤ N ≤ 255)
System clock frequency (MHz)
Baud rate generator clock source (n = 0, 1, 2, 3)
(For the clock sources and values of n, see the following table.)
SMR Settings
n
Clock Source
CKS1
CKS0
0
φ
0
0
1
φ/4
0
1
2
φ/16
1
0
3
φ/64
1
1
The bit rate error in asynchronous mode is calculated as follows.
φ ×10
6
Error (%) = {
(N + 1) × B × 64 × 2
Rev.3.00 Mar. 26, 2007 Page 354 of 682
REJ09B0353-0300
2n–1
– 1} × 100
Section 11 Serial Communication Interface
Table 11.5 indicates the maximum bit rates in asynchronous mode for various system clock
frequencies. Tables 11.6 and 11.7 indicate the maximum bit rates with external clock input.
Table 11.5 Maximum Bit Rates for Various Frequencies (Asynchronous Mode)
Settings
φ (MHz)
Maximum Bit Rate (bits/s)
n
N
2
62500
0
0
2.097152
65536
0
0
2.4576
76800
0
0
3
93750
0
0
3.6864
115200
0
0
4
125000
0
0
4.9152
153600
0
0
5
156250
0
0
6
187500
0
0
6.144
192000
0
0
7.3728
230400
0
0
8
250000
0
0
9.8304
307200
0
0
10
312500
0
0
12
375000
0
0
12.288
384000
0
0
14
437500
0
0
14.7456
460800
0
0
16
500000
0
0
17.2032
537600
0
0
18
562500
0
0
Rev.3.00 Mar. 26, 2007 Page 355 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Table 11.6 Maximum Bit Rates with External Clock Input (Asynchronous Mode)
φ (MHz)
External Input Clock (MHz)
Maximum Bit Rate (bits/s)
2
0.5000
31250
2.097152
0.5243
32768
2.4576
0.6144
38400
3
0.7500
46875
3.6864
0.9216
57600
4
1.0000
62500
4.9152
1.2288
76800
5
1.2500
78125
6
1.5000
93750
6.144
1.5360
96000
7.3728
1.8432
115200
8
2.0000
125000
9.8304
2.4576
153600
10
2.5000
156250
12
3.0000
187500
12.288
3.0720
192000
14
3.5000
218750
14.7456
3.6864
230400
16
4.0000
250000
17.2032
4.3008
268800
18
4.5000
281250
Rev.3.00 Mar. 26, 2007 Page 356 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Table 11.7 Maximum Bit Rates with External Clock Input (Synchronous Mode)
φ (MHz)
External Input Clock (MHz)
Maximum Bit Rate (bits/s)
2
0.3333
333333.3
4
0.6667
666666.7
6
1.0000
1000000.0
8
1.3333
1333333.3
10
1.6667
1666666.7
12
2.0000
2000000.0
14
2.3333
2333333.3
16
2.6667
2666666.7
18
3.0000
3000000.0
Rev.3.00 Mar. 26, 2007 Page 357 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
11.3
Operation
11.3.1
Overview
The SCI has an asynchronous mode in which characters are synchronized individually, and a
synchronous mode in which communication is synchronized with clock pulses. Serial
communication is possible in either mode. Asynchronous or synchronous mode and the
communication format are selected in SMR, as shown in table 11.8. The SCI clock source is
selected by the C/A bit in SMR and the CKE1 and CKE0 bits in SCR, as shown in table 11.9.
Asynchronous Mode:
• Data length is selectable: 7 or 8 bits.
• Parity and multiprocessor bits are selectable, and so is the stop bit length (1 or 2 bits). These
selections determine the communication format and character length.
• In receiving, it is possible to detect framing errors, parity errors, overrun errors, and the break
state.
• An internal or external clock can be selected as the SCI clock source.
When an internal clock is selected, the SCI operates using the on-chip baud rate generator,
and can output a serial clock signal with a frequency matching the bit rate.
When an external clock is selected, the external clock input must have a frequency
16 times the bit rate. (The on-chip baud rate generator is not used.)
Synchronous Mode:
• The communication format has a fixed 8-bit data length.
• In receiving, it is possible to detect overrun errors.
• An internal or external clock can be selected as the SCI clock source.
When an internal clock is selected, the SCI operates using the on-chip baud rate generator,
and outputs a serial clock signal to external devices.
When an external clock is selected, the SCI operates on the input serial clock. The on-chip
baud rate generator is not used.
Rev.3.00 Mar. 26, 2007 Page 358 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Table 11.8 SMR Settings and Serial Communication Formats
SMR Settings
SCI Communication Format
Bit 7
C/A
A
Bit 6
CHR
Bit 2
MP
Bit 5
PE
Bit 3
STOP
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
1
0
0
0
0
1
0
0
1
0
1
0
1
0
0
1
0
1
1
0
0
1
—
0
0
0
1
—
1
0
1
1
—
0
0
1
1
—
1
1
—
—
—
—
Mode
Asynchronous
mode
Data
Length
Multiprocessor Parity
Bit
Bit
Stop
Bit
Length
8-bit data
Absent
1 bit
Absent
2 bits
Present
1 bit
2 bits
7-bit data
Absent
1 bit
2 bits
Present
1 bit
2 bits
Asynchronous
mode (mult i processor
format)
8-bit data
Present
Absent
1 bit
2 bits
7-bit data
1 bit
2 bits
Synchronous
mode
8-bit data
Absent
None
Table 11.9 SMR and SCR Settings and SCI Clock Source Selection
SMR
SCR Settings
Bit 7
C/A
A
Bit 1
CKE1
Bit 0
CKE0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
SCI Communication Format
Mode
Clock Source
SCK Pin Function
Asynchronous
mode
Internal
SCI does not use the SCK pin
Synchronous
mode
Outputs a clock with frequency
matching the bit rate
External
Inputs a clock with frequency
16 times the bit rate
Internal
Outputs the serial clock
External
Inputs the serial clock
Rev.3.00 Mar. 26, 2007 Page 359 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
11.3.2
Operation in Asynchronous Mode
In asynchronous mode each transmitted or received character begins with a start bit and ends with
a stop bit. Serial communication is synchronized one character at a time.
The transmitting and receiving sections of the SCI are independent, so full-duplex communication
is possible. The transmitter and receiver are both double buffered, so data can be written and read
while transmitting and receiving are in progress, enabling continuous transmitting and receiving.
Figure 11.2 shows the general format of asynchronous serial communication. In asynchronous
serial communication the communication line is normally held in the mark (high) state. The SCI
monitors the line and starts serial communication when the line goes to the space (low) state,
indicating a start bit. One serial character consists of a start bit (low), data (LSB first), parity bit
(high or low), and stop bit (high), in that order.
When receiving in asynchronous mode, the SCI synchronizes at the falling edge of the start bit.
The SCI samples each data bit on the eighth pulse of a clock with a frequency 16 times the bit rate.
Receive data is latched at the center of each bit.
1
Serial data
(LSB)
0
D0
Idle (mark) state
1
(MSB)
D1
D2
D3
D4
D5
Start
bit
Transmit or receive data
1 bit
7 bits or 8 bits
D6
D7
0/1
Parity
bit
1
1
Stop
bit
1 bit or 1 bit or
no bit 2 bits
One unit of data (character or frame)
Figure 11.2 Data Format in Asynchronous Communication (Example: 8-Bit Data with
Parity and 2 Stop Bits)
Rev.3.00 Mar. 26, 2007 Page 360 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Communication Formats
Table 11.10 shows the 12 communication formats that can be selected in asynchronous mode. The
format is selected by settings in SMR.
Table 11.10 Serial Communication Formats (Asynchronous Mode)
SMR Settings
Serial Communication Format and Frame Length
CHR
PE
MP
STOP
1
0
0
0
0
S
8-bit data
STOP
0
0
0
1
S
8-bit data
STOP STOP
0
1
0
0
S
8-bit data
P
STOP
0
1
0
1
S
8-bit data
P
STOP STOP
1
0
0
0
S
7-bit data
STOP
1
0
0
1
S
7-bit data
STOP STOP
1
1
0
0
S
7-bit data
P
STOP
1
1
0
1
S
7-bit data
P
STOP STOP
0
—
1
0
S
8 bit data
MPB STOP
0
—
1
1
S
8 bit data
MPB STOP STOP
1
—
1
0
S
7-bit data
MPB STOP
1
—
1
1
S
7-bit data
MPB STOP STOP
2
3
4
5
6
7
8
9
10
11
12
Legend:
S:
Start bit
STOP: Stop bit
P:
Parity bit
MPB: Multiprocessor bit
Rev.3.00 Mar. 26, 2007 Page 361 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Clock
An internal clock generated by the on-chip baud rate generator or an external clock input from the
SCK pin can be selected as the SCI transmit/receive clock. The clock source is selected by the C/A
bit in SMR and bits CKE1 and CKE0 in SCR. See table 11.9.
When an external clock is input at the SCK pin, it must have a frequency equal to 16 times the
desired bit rate.
When the SCI operates on an internal clock, it can output a clock signal at the SCK pin. The
frequency of this output clock is equal to the bit rate. The phase is aligned as in figure 11.3 so that
the rising edge of the clock occurs at the center of each transmit data bit.
0
D0
D1
D2
D3
D4
D5
D6
D7
0/1
1
1
1 frame
Figure 11.3 Phase Relationship between Output Clock and Serial Data
(Asynchronous Mode)
Transmitting and Receiving Data
SCI Initialization (Asynchronous Mode): Before transmitting or receiving, clear the TE and RE
bits to 0 in SCR, then initialize the SCI as follows.
When changing the communication mode or format, always clear the TE and RE bits to 0 before
following the procedure given below. Clearing TE to 0 sets the TDRE flag to 1 and initializes
TSR. Clearing RE to 0, however, does not initialize the RDRF, PER, FER, and ORER flags and
RDR, which retain their previous contents.
When an external clock is used, the clock should not be stopped during initialization or subsequent
operation. SCI operation becomes unreliable if the clock is stopped.
Figure 11.4 shows a sample flowchart for initializing the SCI.
Rev.3.00 Mar. 26, 2007 Page 362 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Start of initialization
Clear TE and RE bits
to 0 in SCR
Set CKE1 and CKE0 bits
in SCR (leaving TE and
RE bits cleared to 0)
1
Select communication
format in SMR
2
Set value in BRR
3
1. Select the clock source in SCR. Clear the RIE, TIE, TEIE,
MPIE, TE, and RE bits to 0. If clock output is selected in
asynchronous mode, clock output starts immediately after
the setting is made in SCR.
2. Select the communication format in SMR.
3. Write the value corresponding to the bit rate in BRR.
This step is not necessary when an external clock is used.
4. Wait for at least the interval required to transmit or receive
1 bit, then set the TE or RE bit to 1 in SCR. Set the RIE,
TIE, TEIE, and MPIE bits as necessary. Setting the TE
or RE bit enables the SCI to use the TxD or RxD pin.
Wait
1 bit interval
elapsed?
No
Yes
Set TE or RE bit to 1 in SCR
Set RIE, TIE, TEIE, and
MPIE bits as necessary
4
Transmitting or receiving
Figure 11.4 Sample Flowchart for SCI Initialization
Rev.3.00 Mar. 26, 2007 Page 363 of 682
REJ09B0353-0300
Section 11 Serial Communication Interface
Transmitting Serial Data (Asynchronous Mode): Figure 11.5 shows a sample flowchart for
transmitting serial data and indicates the procedure to follow.
1
Initialize
Start transmitting
2
Read TDRE flag in SSR
No
TDRE = 1?
Yes
1. SCI initialization: the transmit data output function
of the TxD pin is selected automatically.
2. SCI status check and transmit data write: read SSR,
check that the TDRE flag is 1, then write transmit data
in TDR and clear the TDRE flag to 0.
3. To continue transmitting serial data: after checking
that the TDRE flag is 1, indicating that data can be
written, write data in TDR, then clear the TDRE
flag to 0.
4. To output a break signal at the end of serial transmission:
set the DDR bit to 1 and clear the DR bit to 0
(DDR and DR are I/O port registers), then clear the
TE bit to 0 in SCR.
Write transmit data
in TDR and clear TDRE
flag to 0 in SSR
All data
transmitted?
No
3
Yes
Read TEND flag in SSR
TEND = 1?
No
Yes
Output break
signal?
No
4
Yes
Clear DR bit to 0,
set DDR bit to 1
Clear TE bit to 0 in SCR
End
Figure 11.5 Sample Flowchart for Transmitting Serial Data
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Section 11 Serial Communication Interface
In transmitting serial data, the SCI operates as follows.
• The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0 the SCI
recognizes that TDR contains new data, and loads this data from TDR into TSR.
• After loading the data from TDR into TSR, the SCI sets the TDRE flag to 1 and starts
transmitting. If the TIE bit is set to 1 in SCR, the SCI requests a transmit-data-empty interrupt
(TXI) at this time.
Serial transmit data is transmitted in the following order from the TxD pin:
Start bit:
One 0 bit is output.
Transmit data:
7 or 8 bits are output, LSB first.
Parity bit or multiprocessor bit: One parity bit (even or odd parity) or one multiprocessor
bit is output. Formats in which neither a parity bit nor
a multiprocessor bit is output can also be selected.
Stop bit:
One or two 1 bits (stop bits) are output.
Mark state:
Output of 1 continues until the start bit of the next
transmit data.
• The SCI checks the TDRE flag when it outputs the stop bit. If the TDRE flag is 0, the SCI
loads new data from TDR into TSR, outputs the stop bit, then begins serial transmission of the
next frame. If the TDRE flag is 1, the SCI sets the TEND flag to 1 in SSR, outputs the stop bit,
then continues output of 1 in the mark state. If the TEIE bit is set to 1 in SCR, a transmit-end
interrupt (TEI) is requested at this time.
Figure 11.6 shows an example of SCI transmit operation in asynchronous mode.
1
Start
bit
0
Parity Stop Start
bit
bit
bit
Data
D0
D1
D7
0/1
1
0
Parity Stop
bit
bit
Data
D0
D1
D7
0/1
1
1
Idle (mark)
state
TDRE
TEND
TXI
interrupt
request
TXI interrupt handler
writes data in TDR and
clears TDRE flag to 0
TXI
interrupt
request
TEI interrupt request
1 frame
Figure 11.6 Example of SCI Transmit Operation in Asynchronous Mode
(8-Bit Data with Parity and 1 Stop Bit)
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Section 11 Serial Communication Interface
Receiving Serial Data (Asynchronous Mode): Figure 11.7 shows a sample flowchart for
receiving serial data and indicates the procedure to follow.
1
Initialize
Start receiving
Read ORER, PER,
and FER flags in SSR
PER ∨ FER ∨
ORER = 1?
2
Yes
3
No
Error handling
(continued on next page)
4
Read RDRF flag in SSR
No
RDRF = 1?
1. SCI initialization: the receive data function of
the RxD pin is selected automatically.
2., 3. Receive error handling and break
detection: if a receive error occurs, read the
ORER, PER, and FER flags in SSR to identify
the error. After executing the necessary error
handling, clear the ORER, PER, and FER
flags all to 0. Receiving cannot resume if any
of the ORER, PER, and FER flags remains
set to 1. When a framing error occurs, the
RxD pin can be read to detect the break state.
4. SCI status check and receive data read: read
SSR, check that RDRF is set to 1, then read
receive data from RDR and clear the RDRF
flag to 0. Notification that the RDRF flag has
changed from 0 to 1 can also be given by the
RXI interrupt.
5. To continue receiving serial data: check the
RDRF flag, read RDR, and clear the RDRF
flag to 0 before the stop bit of the current
frame is received.
Yes
Read receive data
from RDR, and clear
RDRF flag to 0 in SSR
No
Finished
receiving?
5
Yes
Clear RE bit to 0 in SCR
End
Figure 11.7 Sample Flowchart for Receiving Serial Data (1)
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Section 11 Serial Communication Interface
3
Error handling
No
ORER = 1?
Yes
Overrun error handling
No
FER = 1?
Yes
Break?
Yes
No
Framing error handling
Clear RE bit to 0 in SCR
No
PER = 1?
Yes
Parity error handling
Clear ORER, PER, and
FER flags to 0 in SSR
End
Figure 11.7 Sample Flowchart for Receiving Serial Data (2)
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Section 11 Serial Communication Interface
In receiving, the SCI operates as follows.
• The SCI monitors the receive data line. When it detects a start bit, the SCI synchronizes
internally and starts receiving.
• Receive data is stored in RSR in order from LSB to MSB.
• The parity bit and stop bit are received.
After receiving data, the SCI makes the following checks:
Parity check:
The number of 1s in the receive data must match the even or odd parity
setting of the O/E bit in SMR.
Stop bit check: The stop bit value must be 1. If there are two stop bits, only the first stop
bit is checked.
Status check:
The RDRF flag must be 0 so that receive data can be transferred from
RSR into RDR.
If these checks all pass, the RDRF flag is set to 1 and the received data is stored in RDR. If one
of the checks fails (receive error)*, the SCI operates as indicated in table 11.11.
Note: * When a receive error occurs, further receiving is disabled. In receiving, the RDRF flag
is not set to 1. Be sure to clear the error flags.
• When the RDRF flag is set to 1, if the RIE bit is set to 1 in SCR, a receive-data-full interrupt
(RXI) is requested. If the ORER, PER, or FER flag is set to 1 and the RIE bit in SCR is also
set to 1, a receive-error interrupt (ERI) is requested.
Table 11.11 Receive Error Conditions
Receive Error
Abbreviation
Condition
Overrun error
ORER
Receiving of next data ends
Receive data not transferred
while RDRF flag is still set to 1 from RSR to RDR
in SSR
Framing error
FER
Stop bit is 0
Receive data transferred
from RSR to RDR
Parity error
PER
Parity of receive data differs
from even/odd parity setting in
SMR
Receive data transferred
from RSR to RDR
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Data Transfer
Section 11 Serial Communication Interface
Figure 11.8 shows an example of SCI receive operation in asynchronous mode.
1
Start
bit
0
Parity Stop Start
bit
bit
bit
Data
D0
D1
D7
0/1
1
0
Parity Stop
bit
bit
Data
D0
D1
D7
0/1
1
1
Idle (mark)
state
RDRF
FER
RXI
request
1 frame
RXI interrupt handler
reads data in RDR and
clears RDRF flag to 0
Framing error,
ERI request
Figure 11.8 Example of SCI Receive Operation (8-Bit Data with Parity and One Stop Bit)
11.3.3
Multiprocessor Communication
The multiprocessor communication function enables several processors to share a single serial
communication line. The processors communicate in asynchronous mode using a format with an
additional multiprocessor bit (multiprocessor format).
In multiprocessor communication, each receiving processor is addressed by an ID. A serial
communication cycle consists of an ID-sending cycle that identifies the receiving processor, and a
data-sending cycle. The multiprocessor bit distinguishes ID-sending cycles from data-sending
cycles.
The transmitting processor starts by sending the ID of the receiving processor with which it wants
to communicate as data with the multiprocessor bit set to 1. Next the transmitting processor sends
transmit data with the multiprocessor bit cleared to 0.
Receiving processors skip incoming data until they receive data with the multiprocessor bit set to
1. When they receive data with the multiprocessor bit set to 1, receiving processors compare the
data with their IDs. The receiving processor with a matching ID continues to receive further
incoming data. Processors with IDs not matching the received data skip further incoming data
until they again receive data with the multiprocessor bit set to 1. Multiple processors can send and
receive data in this way.
Figure 11.9 shows an example of communication among different processors using a
multiprocessor format.
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Section 11 Serial Communication Interface
Communication Formats
Four formats are available. Parity-bit settings are ignored when a multiprocessor format is
selected. For details see table 11.11.
Clock
See the description of asynchronous mode.
Transmitting
processor
Serial communication line
Receiving
processor A
Receiving
processor B
Receiving
processor C
Receiving
processor D
(ID = 01)
(ID = 02)
(ID = 03)
(ID = 04)
H'01
Serial data
(MPB = 1)
ID-sending cycle: receiving
processor address
H'AA
(MPB = 0)
Data-sending cycle:
data sent to receiving
processor specified by ID
Legend:
MPB: Multiprocessor bit
Figure 11.9 Example of Communication among Processors using Multiprocessor Format
(Sending Data H'AA to Receiving Processor A)
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Section 11 Serial Communication Interface
Transmitting and Receiving Data
Transmitting Multiprocessor Serial Data: Figure 11.10 shows a sample flowchart for
transmitting multiprocessor serial data and indicates the procedure to follow.
1
Initialize
Start transmitting
2
Read TDRE flag in SSR
TDRE = 1?
No
Yes
Write transmit data in
TDR and set MPBT bit in SSR
Clear TDRE flag to 0
All data transmitted?
No
1. SCI initialization: the transmit data
output function of the TxD pin is
selected automatically.
2. SCI status check and transmit data
write: read SSR, check that the TDRE
flag is 1, then write transmit
data in TDR. Also set the MPBT flag to
0 or 1 in SSR. Finally, clear the TDRE
flag to 0.
3. To continue transmitting serial data:
after checking that the TDRE flag is 1,
indicating that data can be written,
write data in TDR, then clear the TDRE
flag to 0.
4. To output a break signal at the end of
serial transmission: set the DDR bit to
1 and clear the DR bit to 0 (DDR and
DR are I/O port registers), then clear
the TE bit to 0 in SCR.
3
Yes
Read TEND flag in SSR
TEND = 1?
No
Yes
Output break signal?
No
4
Yes
Clear DR bit to 0, set DDR bit to 1
Clear TE bit to 0 in SCR
End
Figure 11.10 Sample Flowchart for Transmitting Multiprocessor Serial Data
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Section 11 Serial Communication Interface
In transmitting serial data, the SCI operates as follows.
• The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0 the SCI
recognizes that TDR contains new data, and loads this data from TDR into TSR.
• After loading the data from TDR into TSR, the SCI sets the TDRE flag to 1 and starts
transmitting. If the TIE bit in SCR is set to 1, the SCI requests a transmit-data-empty interrupt
(TXI) at this time.
Serial transmit data is transmitted in the following order from the TxD pin:
Start bit:
One 0 bit is output.
Transmit data:
7 or 8 bits are output, LSB first.
Multiprocessor bit: One multiprocessor bit (MPBT value) is output.
Stop bit:
One or two 1 bits (stop bits) are output.
Mark state:
Output of 1 bits continues until the start bit of the next transmit data.
• The SCI checks the TDRE flag when it outputs the stop bit. If the TDRE flag is 0, the SCI
loads data from TDR into TSR, outputs the stop bit, then begins serial transmission of the next
frame. If the TDRE flag is 1, the SCI sets the TEND flag in SSR to 1, outputs the stop bit, then
continues output of 1 bits in the mark state. If the TEIE bit is set to 1 in SCR, a transmit-end
interrupt (TEI) is requested at this time.
Figure 11.11 shows an example of SCI transmit operation using a multiprocessor format.
Multiprocessor
bit
1
Serial
data
Start
bit
0
Stop Start
bit
bit
Data
D0
D1
Multiprocessor
bit
D7
0/1
1
0
Stop
bit
Data
D0
D1
D7
0/1
1
1
Idle (mark)
state
TDRE
TEND
TXI
request
TXI interrupt handler
writes data in TDR and
clears TDRE flag to 0
TXI
request
TEI request
1 frame
Figure 11.11 Example of SCI Transmit Operation (8-Bit Data with Multiprocessor Bit and
One Stop Bit)
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Section 11 Serial Communication Interface
Receiving Multiprocessor Serial Data: Figure 11.12 shows a sample flowchart for receiving
multiprocessor serial data and indicates the procedure to follow.
Initialize
1
1. SCI initialization: the receive data function
of the RxD pin is selected automatically.
2. ID receive cycle: set the MPIE bit to 1 in SCR.
3. SCI status check and ID check: read SSR,
check that the RDRF flag is set to 1, then read
data from RDR and compare with the
processor's own ID. If the ID does not match,
set the MPIE bit to 1 again and clear the
RDRF flag to 0. If the ID matches, clear the
RDRF flag to 0.
4. SCI status check and data receiving: read
SSR, check that the RDRF flag is set to 1,
then read data from RDR.
5. Receive error handling and break detection:
if a receive error occurs, read the
ORER and FER flags in SSR to identify the error.
After executing the necessary error handling,
clear the ORER and FER flags both to 0.
Receiving cannot resume while either the ORER
or FER flag remains set to 1. When a framing
error occurs, the RxD pin can be read to detect
the break state.
Start receiving
Set MPIE bit to 1 in SCR
2
Read ORER and FER flags in SSR
FER ∨ ORER = 1 ?
Yes
No
Read RDRF flag in SSR
3
No
RDRF = 1?
Yes
Read receive data from RDR
No
Own ID?
Yes
Read ORER and FER flags in SSR
FER ∨ ORER = 1 ?
Yes
No
Read RDRF flag in SSR
4
No
RDRF = 1?
Yes
Read receive data from RDR
No
Finished receiving?
Yes
5
Error handling
(continued on next page)
Clear RE bit to 0 in SCR
End
Figure 11.12 Sample Flowchart for Receiving Multiprocessor Serial Data (1)
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Section 11 Serial Communication Interface
5
Error handling
No
ORER = 1?
Yes
Overrun error handling
No
FER = 1?
Yes
Break?
Yes
No
Framing error handling
Clear RE bit to 0 in SCR
Clear ORER and FER
flags to 0 in SSR
End
Figure 11.12 Sample Flowchart for Receiving Multiprocessor Serial Data (2)
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Section 11 Serial Communication Interface
Figure 11.13 shows an example of SCI receive operation using a multiprocessor format.
1
Start
bit
0
MPB
Data (ID1)
D0
D1
D7
1
Stop Start
Data (data1)
bit
bit
1
D0
0
D1
MPB
D7
0
Stop
bit
1
1
Idle (mark)
state
MPIE
RDRF
RDR value
ID1
RXI request
RXI handler reads
(multiprocessor
RDR data and clears
interrupt), MPIE = 0 RDRF flag to 0
Not own ID, so
MPIE bit is set
to 1 again
No RXI request,
RDR not updated
a. Own ID does not match data
1
Start
bit
0
MPB
Data (ID2)
D0
D1
D7
1
Stop Start
bit
bit
1
Data (data2) MPB
D0
0
D1
D7
0
Stop
bit
1
1
Idle (mark)
state
MPIE
RDRF
RDR value
ID1
ID2
Data 2
RXI request
RXI interrupt handler Own ID, so receiving MPIE bit is set
(multiprocessor
reads RDR data and continues, with data to 1 again
interrupt), MPIE = 0 clears RDRF flag to 0 received by RXI
interrupt handler
b. Own ID matches data
Figure 11.13 Example of SCI Receive Operation (8-Bit Data with Multiprocessor Bit and
One Stop Bit)
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Section 11 Serial Communication Interface
11.3.4
Synchronous Operation
In synchronous mode, the SCI transmits and receives data in synchronization with clock pulses.
This mode is suitable for high-speed serial communication.
The SCI transmitter and receiver share the same clock but are otherwise independent, so full
duplex communication is possible. The transmitter and receiver are also double buffered, so
continuous transmitting or receiving is possible by reading or writing data while transmitting or
receiving is in progress.
Figure 11.14 shows the general format in synchronous serial communication.
Transfer direction
One unit (character or frame) of serial data
*
*
Serial clock
LSB
Serial data
Bit 0
MSB
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Don't care
Don't care
Note: * High except in continuous transmitting or receiving
Figure 11.14 Data Format in Synchronous Communication
In synchronous serial communication, each data bit is placed on the communication line from one
falling edge of the serial clock to the next. Data is guaranteed valid at the rise of the serial clock.
In each character, the serial data bits are transmitted in order from LSB (first) to MSB (last). After
output of the MSB, the communication line remains in the state of the MSB. In synchronous mode
the SCI receives data by synchronizing with the rise of the serial clock.
Communication Format
The data length is fixed at 8 bits. No parity bit or multiprocessor bit can be added.
Clock
An internal clock generated by the on-chip baud rate generator or an external clock input from the
SCK pin can be selected by clearing or setting the CKE1 and CKE0 bits in SCR and the C/A bit in
SMR. See table 11.9. When the SCI operates on an internal clock, it outputs the clock signal at the
SCK pin. Eight clock pulses are output per transmitted or received character. When the SCI is not
transmitting or receiving, the clock signal remains in the high state.
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Section 11 Serial Communication Interface
Transmitting and Receiving Data
SCI Initialization (Synchronous Mode): Before transmitting or receiving, clear the TE and RE
bits to 0 in SCR, then initialize the SCI as follows.
When changing the communication mode or format, always clear the TE and RE bits to 0 before
following the procedure given below. Clearing the TE bit to 0 sets the TDRE flag to 1 and
initializes TSR. Clearing the RE bit to 0, however, does not initialize the RDRF, PER, FER, and
ORE flags and RDR, which retain their previous contents.
Figure 11.15 shows a sample flowchart for initializing the SCI.
Start of initialization
Clear TE and RE
bits to 0 in SCR
1
Set CKE1 and CKE0 bits in
SCR (leaving TE and RE
bits cleared to 0)
2
1. Select the clock source in SCR. Clear the RIE, TIE, TEIE,
MPIE, TE, and RE bits to 0.
2. Select the communication format in SMR.
3. Write the value corresponding to the bit rate in BRR.
This step is not necessary when an external clock is used.
4. Wait for at least the interval required to transmit or receive
one bit, then set the TE or RE bit to 1 in SCR. Also set
the RIE, TIE, and TEIE bits as necessary.
Setting the TE or RE bit enables the SCI to use the
TxD or RxD pin.
Note: In simultaneous transmitting and receiving, the TE and RE
bits should be cleared to 0 or set to 1 simultaneously.
Select communication
format in SMR
3
Set value in BRR
Wait
1 bit interval
elapsed?
No
Yes
Set TE or RE to 1 in SCR
Set RIE, TIE, and TEIE
bits as necessary
4
Start transmitting or receiving
Figure 11.15 Sample Flowchart for SCI Initialization
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Section 11 Serial Communication Interface
Transmitting Serial Data (Synchronous Mode): Figure 11.16 shows a sample flowchart for
transmitting serial data and indicates the procedure to follow.
1
Initialize
Start transmitting
Read TDRE flag in SSR
2
1. SCI initialization: the transmit data output function
of the TxD pin is selected automatically.
2. SCI status check and transmit data write: read SSR,
check that the TDRE flag is 1, then write transmit
data in TDR and clear the TDRE flag to 0.
3. To continue transmitting serial data: after checking
that the TDRE flag is 1, indicating that data can be
written, write data in TDR, then clear the TDRE flag
to 0.
No
TDRE = 1?
Yes
Write transmit data in
TDR and clear TDRE flag
to 0 in SSR
All data
transmitted?
No
3
Yes
Read TEND flag in SSR
TEND = 1?
No
Yes
Clear TE bit to 0 in SCR
End
Figure 11.16 Sample Flowchart for Serial Transmitting
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Section 11 Serial Communication Interface
In transmitting serial data, the SCI operates as follows.
• The SCI monitors the TDRE flag in SSR. When the TDRE flag is cleared to 0 the SCI
recognizes that TDR contains new data, and loads this data from TDR into TSR.
• After loading the data from TDR into TSR, the SCI sets the TDRE flag to 1 and starts
transmitting. If the TIE bit is set to 1 in SCR, the SCI requests a transmit-data-empty interrupt
(TXI) at this time.
If clock output is selected, the SCI outputs eight serial clock pulses. If an external clock source
is selected, the SCI outputs data in synchronization with the input clock. Data is output from
the TxD pin in order from LSB (bit 0) to MSB (bit 7).
• The SCI checks the TDRE flag when it outputs the MSB (bit 7). If the TDRE flag is 0, the SCI
loads data from TDR into TSR and begins serial transmission of the next frame. If the TDRE
flag is 1, the SCI sets the TEND flag to 1 in SSR, and after transmitting the MSB, holds the
TxD pin in the MSB state. If the TEIE bit in SCR is set to 1, a transmit-end interrupt (TEI) is
requested at this time.
• After the end of serial transmission, the SCK pin is held in a constant state.
Figure 11.17 shows an example of SCI transmit operation.
Transmit
direction
Serial clock
Serial data
Bit 0
Bit 1
Bit 7
Bit 0
Bit 1
Bit 6
Bit 7
TDRE
TEND
TXI
request
TXI interrupt handler
writes data in TDR
and clears TDRE
flag to 0
TXI
request
TEI
request
1 frame
Figure 11.17 Example of SCI Transmit Operation
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Section 11 Serial Communication Interface
Receiving Serial Data (Synchronous Mode): Figure 11.18 shows a sample flowchart for
receiving serial data and indicates the procedure to follow. When switching from asynchronous
mode to synchronous mode, make sure that the ORER, PER, and FER flags are cleared to 0. If the
FER or PER flag is set to 1 the RDRF flag will not be set and both transmitting and receiving will
be disabled.
Initialize
No
1
1.
SCI initialization: the receive data function of
the RxD pin is selected automatically.
2., 3. Receive error handling: if a receive error
Start receiving
occurs, read the ORER flag in SSR, then after
executing the necessary error handling, clear
the ORER flag to 0. Neither transmitting nor
receiving can resume while the ORER flag
Read ORER flag in SSR
2
remains set to 1.
4. SCI status check and receive data read: read
SSR, check that the RDRF flag is set to 1,
Yes
ORER = 1?
then read receive data from RDR and clear
3
the RDRF flag to 0. Notification that the RDRF
Error handling
No
flag has changed from 0 to 1 can also be
given by the RXI interrupt.
(continued on next page)
5. To continue receiving serial data: check the
Read RDRF flag in SSR
4
RDRF flag, read RDR, and clear the RDRF
flag to 0 before the MSB (bit 7) of the current
frame is received.
RDRF = 1?
Yes
Read receive data
from RDR, and clear
RDRF flag to 0 in SSR
No
Finished
receiving?
5
Yes
Clear RE bit to 0 in SCR
End
Figure 11.18 Sample Flowchart for Serial Receiving (1)
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Section 11 Serial Communication Interface
3
Error handling
Overrun error handling
Clear ORER flag to 0 in SSR
End
Figure 11.18 Sample Flowchart for Serial Receiving (2)
In receiving, the SCI operates as follows.
• The SCI synchronizes with serial clock input or output and initializes internally.
• Receive data is stored in RSR in order from LSB to MSB.
After receiving the data, the SCI checks that the RDRF flag is 0 so that receive data can be
transferred from RSR to RDR. If this check passes, the RDRF flag is set to 1 and the received
data is stored in RDR. If the check does not pass (receive error), the SCI operates as indicated
in table 11.11. If any receive error is detected, the subsequent data transmission/reception is
disabled.
• After setting the RDRF flag to 1, if the RIE bit is set to 1 in SCR, the SCI requests a receivedata-full interrupt (RXI). If the ORER flag is set to 1 and the RIE bit in SCR is also set to 1,
the SCI requests a receive-error interrupt (ERI).
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Section 11 Serial Communication Interface
Figure 11.19 shows an example of SCI receive operation.
Receive direction
Serial clock
Serial data
Bit 7
Bit 7
Bit 0
Bit 0
Bit 1
Bit 6
Bit 7
RDRF
ORER
RXI
request
RXI interrupt handler
reads data in RDR and
clears RDRF flag to 0
RXI
request
Overrun error,
ERI request
1 frame
Figure 11.19 Example of SCI Receive Operation
Transmitting and Receiving Serial Data Simultaneously (Synchronous Mode): Figure 11.20
shows a sample flowchart for transmitting and receiving serial data simultaneously and indicates
the procedure to follow.
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Section 11 Serial Communication Interface
Initialize
1
Start transmitting and receiving
Read TDRE flag in SSR
2
No
TDRE = 1?
Yes
Write transmit data in TDR and
clear TDRE flag to 0 in SSR
Read ORER flag in SSR
Yes
ORER = 1?
3
No
Read RDRF flag in SSR
Error handling
4
No
RDRF = 1?
Yes
Read receive data from RDR
and clear RDRF flag to 0 in SSR
No
End of transmitting and
receiving?
1. SCI initialization: the transmit data
output function of the TxD pin and
receive data input function of the
RxD pin are selected, enabling
simultaneous transmitting and
receiving.
2. SCI status check and transmit
data write: read SSR, check that
the TDRE flag is 1, then write
transmit data in TDR and clear
the TDRE flag to 0.
Notification that the TDRE flag has
changed from 0 to 1 can also be
given by the TXI interrupt.
3. Receive error handling: if a receive
error occurs, read the ORER flag in
SSR, then after executing the necessary error handling, clear the ORER
flag to 0.
Neither transmitting nor receiving
can resume while the ORER flag
remains set to 1.
4. SCI status check and receive
data read: read SSR, check that
the RDRF flag is 1, then read
receive data from RDR and clear
the RDRF flag to 0. Notification
that the RDRF flag has changed
from 0 to 1 can also be given
by the RXI interrupt.
5. To continue transmitting and
receiving serial data: check the
RDRF flag, read RDR, and clear
the RDRF flag to 0 before the
MSB (bit 7) of the current frame
is received. Also check that
the TDRE flag is set to 1, indicating that data can be written, write
data in TDR, then clear the TDRE
flag to 0 before the MSB (bit 7) of
the current frame is transmitted.
5
Yes
Clear TE and RE bits to 0 in SCR
End
Note: When switching from transmitting or receiving to simultaneous
transmitting and receiving, clear the TE and RE bits both to 0,
then set the TE and RE bits both to 1.
Figure 11.20 Sample Flowchart for Serial Transmitting
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Section 11 Serial Communication Interface
11.4
SCI Interrupts
The SCI has four interrupt request sources: TEI (transmit-end interrupt), ERI (receive-error
interrupt), RXI (receive-data-full interrupt), and TXI (transmit-data-empty interrupt). Table 11.12
lists the interrupt sources and indicates their priority. These interrupts can be enabled and disabled
by the TIE, RIE, and TEIE bits in SCR. Each interrupt request is sent separately to the interrupt
controller.
The TXI interrupt is requested when the TDRE flag is set to 1 in SSR. The TEI interrupt is
requested when the TEND flag is set to 1 in SSR.
The RXI interrupt is requested when the RDRF flag is set to 1 in SSR. The ERI interrupt is
requested when the ORER, PER, or FER flag is set to 1 in SSR.
Table 11.12 SCI Interrupt Sources
Interrupt
Description
Priority
ERI
Receive error (ORER, FER, or PER)
High
RXI
Receive data register full (RDRF)
TXI
Transmit data register empty (TDRE)
TEI
Transmit end (TEND)
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Low
Section 11 Serial Communication Interface
11.5
Usage Notes
Note the following points when using the SCI.
TDR Write and TDRE Flag
The TDRE flag in SSR is a status flag indicating the loading of transmit data from TDR into TSR.
The SCI sets the TDRE flag to 1 when it transfers data from TDR to TSR.
Data can be written into TDR regardless of the state of the TDRE flag. If new data is written in
TDR when the TDRE flag is 0, the old data stored in TDR will be lost because this data has not
yet been transferred to TSR. Before writing transmit data in TDR, be sure to check that the TDRE
flag is set to 1.
Simultaneous Multiple Receive Errors
Table 11.13 indicates the state of SSR status flags when multiple receive errors occur
simultaneously. When an overrun error occurs the RSR contents are not transferred to RDR, so
receive data is lost.
Table 11.13 SSR Status Flags and Transfer of Receive Data
RDRF
ORER
FER
PER
Receive Data
Transfer
RSR → RDR
1
1
0
0
×
0
0
1
0
Framing error
0
0
0
1
Parity error
1
1
1
0
×
Overrun error + framing error
1
1
0
1
×
Overrun error + parity error
0
0
1
1
1
1
1
SSR Status Flags
1
Notes:
Receive Errors
Overrun error
Framing error + parity error
×
Overrun error + framing error + parity error
: Receive data is transferred from RSR to RDR.
×: Receive data is not transferred from RSR to RDR.
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Section 11 Serial Communication Interface
Break Detection and Processing
Break signals can be detected by reading the RxD pin directly when a framing error (FER) is
detected. In the break state the input from the RxD pin consists of all 0s, so the FER flag is set and
the parity error flag (PER) may also be set. In the break state the SCI receiver continues to operate,
so if the FER flag is cleared to 0 it will be set to 1 again.
Sending a Break Signal
When the TE bit is cleared to 0 the TxD pin becomes an I/O port, the level and direction (input or
output) of which are determined by DR and DDR bits. This feature can be used to send a break
signal.
After the serial transmitter is initialized, the DR value substitutes for the mark state until the TE
bit is set to 1 (the TxD pin function is not selected until the TE bit is set to 1). The DDR and DR
bits should therefore both be set to 1 beforehand.
To send a break signal during serial transmission, clear the DR bit to 0, then clear the TE bit to 0.
When the TE bit is cleared to 0 the transmitter is initialized, regardless of its current state, so the
TxD pin becomes an input/output port outputting the value 0.
Receive Error Flags and Transmitter Operation (Synchronous Mode Only)
When a receive error flag (ORER, PER, or FER) is set to 1 the SCI will not start transmitting,
even if the TDRE flag is cleared to 0. Be sure to clear the receive error flags to 0 when starting to
transmit. Note that clearing the RE bit to 0 does not clear the receive error flags to 0.
Receive Data Sampling Timing in Asynchronous Mode and Receive Margin
In asynchronous mode the SCI operates on a base clock with 16 times the bit rate frequency. In
receiving, the SCI synchronizes internally with the fall of the start bit, which it samples on the
base clock. Receive data is latched at the rising edge of the eighth base clock pulse. See figure
11.21.
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Section 11 Serial Communication Interface
16 clocks
8 clocks
0
7
15 0
7
15 0
Internal
base clock
Receive data
(RxD)
D0
Start bit
D1
Synchronization
sampling timing
Data sampling
timing
Figure 11.21 Receive Data Sampling Timing in Asynchronous Mode
The receive margin in asynchronous mode can therefore be expressed as shown in equation (1).
M = | ( 0.5 –
M:
N:
D:
L:
F:
1
| D – 0.5 |
) – (L – 0.5) F
(1 + F) | × 100% ..........(1)
2N
N
Receive margin (%)
Ratio of clock frequency to bit rate (N = 16)
Clock duty cycle (D = 0 to 1.0)
Frame length (L = 9 to 12)
Absolute deviation of clock frequency
From equation (1), if F = 0 and D = 0.5 the receive margin is 46.875%, as given by equation (2).
When D = 0.5, F = 0:
M = [0.5 – 1/(2 × 16)] × 100%
= 46.875%..........................................................................................(2)
This is a theoretical value. A reasonable margin to allow in system design is 20% to 30%.
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Section 11 Serial Communication Interface
Restrictions in Synchronous Mode
When data transmission is performed using an external clock source as the serial clock, an interval
of at least 5 states is necessary between clearing the TDRE flag in SSR and the start (falling edge)
of the first transmit clock pulse corresponding to each frame (figure 11.22). This interval is also
necessary when performing continuous transmission. If this condition is not satisfied, an operation
error may occur.
SCK
t*
t*
TDRE
TXD
X0
X1
X2
X3
Note: * Make sure that t is at least 5 states.
X4
X5
X6
X7
Y0
Y1
Y3
Continuous transmission
Figure 11.22 Transmission in Synchronous Mode (Example)
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Y2
Section 11 Serial Communication Interface
Restrictions when Switching from SCK Pin to Port Function in Synchronous SCI
1. Problem in Operation
After setting DDR and DR to 1 and using synchronous SCI clock output, when the SCK pin is
switched to the port function at the end of transmission, a low-level signal is output for one
half-cycle before the port output state is established.
When switching to the port function by making the following settings while DDR = 1, DR = 1,
C/A = 1, CKE1 = 0, CKE0 = 0, and TE = 1, low-level output occurs for one half-cycle.
(1) End of serial data transmission
(2) TE bit = 0
(3) C/A bit = 0 ... switchover to port output
(4) Occurrence of low-level output (see figure 11.23)
Half-cycle low-level output occurs
SCK/port
(1) End of transmission
Data
Bit 6
(4) Low-level output
Bit 7
(2) TE = 0
TE
(3) C/A = 0
C/A
CKE1
CKE0
Figure 11.23 Operation when Switching from SCK Pin Function to Port Pin Function
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Section 11 Serial Communication Interface
2. Usage Note
The procedure shown below should be used to prevent low-level output when switching from
the SCK pin function to the port function.
As this procedure temporarily places the SCK pin in the input state, the SCK/port pin should
be pulled up beforehand with an external circuit. With DDR = 1, DR = 1, C/A = 1, CKE1 = 0,
CKE0 = 0, and TE = 1, make the following settings in the order shown.
(1) End of serial data transmission
(2) TE bit = 0
(3) CKE1 bit = 1
(4) C/A bit = 0 ... switchover to port output
(5) CKE1 bit = 0
High-level output
SCK/port
(1) End of transmission
Data
Bit 6
Bit 7
(2) TE = 0
TE
(4) C/A = 0
C/A
(3) CKE1 = 1
CKE1
(5) CKE1 = 0
CKE0
Figure 11.24 Operation when Switching from SCK Pin Function to Port Pin Function
(Preventing Low-Level Output)
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Section 12 Smart Card Interface
Section 12 Smart Card Interface
12.1
Overview
SCI0 supports an IC card (Smart Card) interface conforming to ISO/IEC 7816-3 (Identification
Card) as a serial communication interface extension function.
Switching between the normal serial communication interface and the Smart Card interface is
carried out by means of a register setting.
12.1.1
Features
Features of the Smart Card interface supported by the H8/3039 Group are as follows.
• Asynchronous mode
Data length: 8 bits
Parity bit generation and checking
Transmission of error signal (parity error) in receive mode
Error signal detection and automatic data retransmission in transmit mode
Direct convention and inverse convention both supported
• On-chip baud rate generator allows any bit rate to be selected
• Three interrupt sources
Three interrupt sources (transmit data empty, receive data full, and transmit/receive error)
that can issue requests independently
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Section 12 Smart Card Interface
12.1.2
Block Diagram
Bus interface
Figure 12.1 shows a block diagram of the Smart Card interface.
Module data bus
RDR
RxD0
TxD0
RSR
TDR
SCMR
SSR
SCR
SMR
TSR
BRR
φ
Baud rate
generator
Transmission/
reception control
Parity generation
φ/4
φ/16
φ/64
Clock
Parity check
SCK0
Legend:
SCMR: Smart Card mode register
RSR: Receive shift register
RDR: Receive data register
TSR: Transmit shift register
TDR: Transmit data register
SMR: Serial mode register
SCR: Serial control register
SSR: Serial status register
BRR: Bit rate register
TXI
RXI
ERI
Figure 12.1 Block Diagram of Smart Card Interface
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Internal
data bus
Section 12 Smart Card Interface
12.1.3
Pin Configuration
Table 12.1 shows the Smart Card interface pin configuration.
Table 12.1 Smart Card Interface Pins
Pin Name
Abbreviation
I/O
Function
Serial clock pin 0
SCK0
Output
SCI0 clock output
Receive data pin 0
RxD0
Input
SCI0 receive data input
Transmit data pin 0
TxD0
Output
SCI0 transmit data output
12.1.4
Register Configuration
Table 12.2 shows the registers used by the Smart Card interface. Details of SMR, BRR, SCR,
TDR, and RDR are the same as for the normal SCI function: see the register descriptions in
section 11, Serial Communication Interface.
Table 12.2 Smart Card Interface Registers
1
Address*
Name
Abbreviation
R/W
Initial Value
H'FFB0
Serial mode register
SMR
R/W
H'00
H'FFB1
Bit rate register
BRR
R/W
H'FF
H'FFB2
Serial control register
SCR
R/W
H'00
H'FFB3
Transmit data register
TDR
R/W
H'FF
2
H'FFB4
Serial status register
SSR
R/(W)*
H'FFB5
Receive data register
RDR
R
H'84
H'00
H'FFB6
Smart card mode
register
SCMR
R/W
H'F2
Notes: 1. Lower 16 bits of the address.
2. Can only be written with 0 for flag clearing.
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Section 12 Smart Card Interface
12.2
Register Descriptions
Registers added with the Smart Card interface and bits for which the function changes are
described here.
12.2.1
Smart Card Mode Register (SCMR)
Bit
7
6
5
4
3
2
1
0
—
—
—
—
SDIR
SINV
—
SMIF
Initial value
1
1
1
1
0
0
1
0
Read/Write
—
—
—
—
R/W
R/W
—
R/W
Reserved bits
Smart card interface
mode select
Enables or disables
the smart card
interface function
Smart card data invert
Inverts data logic levels
Smart card data transfer direction
Selects the serial/parallel conversion format
SCMR is an 8-bit readable/writable register that selects the Smart Card interface function.
SCMR is initialized to H'F2 by a reset, and in standby mode.
Bits 7 to 4—Reserved: These bits cannot be modified and are always read as 1.
Bit 3—Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion
format.
Bit 3
SDIR
Description
0
TDR contents are transmitted LSB-first
Receive data is stored in RDR LSB-first
1
TDR contents are transmitted MSB-first
Receive data is stored in RDR MSB-first
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(Initial value)
Section 12 Smart Card Interface
Bit 2—Smart Card Data Invert (SINV): Specifies inversion of the data logic level. This
function is used together with the SDIR bit for communication with an inverse convention card.
The SINV bit does not affect the logic level of the parity bit. For parity-related setting procedures,
see section 12.3.4, Register Settings.
Bit 2
SINV
Description
0
TDR contents are transmitted as they are
(Initial value)
Receive data is stored as it is in RDR
1
TDR contents are inverted before being transmitted
Receive data is stored in inverted form in RDR
Bit 1—Reserved: This bit cannot be modified and is always read as 1.
Bit 0—Smart Card Interface Mode Select (SMIF): This bit enables or disables the Smart Card
interface function.
Bit 0
SMIF
Description
0
Smart Card interface function is disabled
1
Smart Card interface function is enabled
(Initial value)
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Section 12 Smart Card Interface
12.2.2
Serial Status Register (SSR)
Bit
Initial value
R/W
7
6
5
4
3
2
1
0
TDRE
RDRF
ORER
ERS
PER
TEND
MPB
MPBT
1
0
0
0
0
1
0
0
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R
R
R/W
Transmit end
Status flag indicating
end of transmission
Error signal status
Status flag indicating that an
error signal has been received
Note: * Only 0 can be written to bits 7 to 3, to clear these flags.
Bit 4 of SSR has a different function in Smart Card interface mode. Coupled with this, the setting
conditions for bit 2, TEND, are also different.
Bits 7 to 5—Operate in the same way as for the normal SCI. For details, see section 11.2.7, Serial
Status Register (SSR).
Bit 4—Error Signal Status (ERS): In Smart Card interface mode, bit 4 indicates the status of the
error signal sent back from the receiving end in transmission. Framing errors are not detected in
Smart Card interface mode.
Bit 4
ERS
Description
0
Indicates normal data transmission, with no error signal returned
[Clearing conditions]
1
•
Upon reset, in standby mode, or in module stop mode
•
When 0 is written to ERS after reading ERS = 1
(Initial value)
Indicates that the receiving device sent an error signal reporting a parity error
[Setting condition]
When the low level of the error signal is sampled
Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous
state.
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Section 12 Smart Card Interface
Bits 3 to 0—Operate in the same way as for the normal SCI. For details, see section 11.2.7, Serial
Status Register (SSR).
However, the setting conditions for the TEND bit are as shown below.
Bit 2
TEND
Description
0
Transmission is in progress
[Clearing condition]
(Initial value)
When 0 is written to TDRE after reading TDRE = 1
1
End of transmission
[Setting conditions]
•
Upon reset and in standby mode
•
When the TE bit in SCR is 0 and the ERS bit is also 0
•
When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after transmission of a
1-byte serial character
Note: etu: Elementary Time Unit (time for transfer of 1 bit)
12.3
Operation
12.3.1
Overview
The main functions of the Smart Card interface are as follows.
• One frame consists of 8-bit and plus a parity bit.
• In transmission, a guard time of at least 2 etu (Elementary Time Unit: the time for transfer of
one bit) is left between the end of the parity bit and the start of the next frame.
• If a parity error is detected during reception, a low error signal level is output for one etu
period, 10.5 etu after the start bit.
• If the error signal is sampled during transmission, the same data is transmitted automatically
after the elapse of 2 etu or longer.
• Only asynchronous communication is supported; there is no clocked synchronous
communication function.
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Section 12 Smart Card Interface
12.3.2
Pin Connections
Figure 12.2 shows a schematic diagram of Smart Card interface related pin connections.
In communication with an IC card, since both transmission and reception are carried out on a
single data transmission line, the TxD0 pin and RxD0 pin should be connected with the LSI pin.
The data transmission line should be pulled up to the VCC power supply with a resistor.
When the clock generated on the Smart Card interface is used by an IC card, the SCK0 pin output
is input to the CLK pin of the IC card. No connection is needed if the IC card uses an internal
clock.
LSI port output is used as the reset signal.
Other pins must normally be connected to the power supply or ground.
VCC
TxD0
RxD0
Data line
SCK0
Clock line
Px (port)
H8/3039 Group
Chip
Reset line
I/O
CLK
RST
IC card
Connected equipment
Figure 12.2 Schematic Diagram of Smart Card Interface Pin Connections
Note: If an IC card is not connected, and the TE and RE bits are both set to 1, closed
transmission/reception is possible, enabling self-diagnosis to be carried out.
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Section 12 Smart Card Interface
12.3.3
Data Format
Figure 12.3 shows the Smart Card interface data format. In reception in this mode, a parity check
is carried out on each frame, and if an error is detected an error signal is sent back to the
transmitting end, and retransmission of the data is requested. If an error signal is sampled during
transmission, the same data is retransmitted.
When there is no parity error
Ds
D0
D1
D2
D3
D4
D5
D6
D7
Dp
D6
D7
Dp
Transmitting station output
When a parity error occurs
Ds
D0
D1
D2
D3
D4
D5
DE
Transmitting station output
Legend:
Ds:
D0 to D7:
Dp:
DE:
Receiving station
output
Start bit
Data bits
Parity bit
Error signal
Figure 12.3 Smart Card Interface Data Format
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Section 12 Smart Card Interface
The operation sequence is as follows.
[1] When the data line is not in use it is in the high-impedance state, and is fixed high with a pullup resistor.
[2] The transmitting station starts a date transfer of one frame. The data frame starts with a start bit
(Ds, low-level). Then 8 data bits (D0 to D7) and a parity bit (Dp) follows.
[3] With the Smart Card interface, the data line then returns to the high-impedance state. The data
line is pulled high with a pull-up resistor.
[4] The receiving station carries out a parity check.
If there is no parity error and the data is received normally, the receiving station waits for
reception of the next data.
If a parity error occurs, however, the receiving station outputs an error signal (DE, low-level)
to request retransmission of the data. After outputting the error signal for the prescribed length
of time, the receiving station places the signal line in the high-impedance state again. The
signal line is pulled high again by a pull-up resistor.
[5] If the transmitting station does not receive an error signal, it proceeds to transmit the next data
frame.
If it does receive an error signal, however, it returns to step [2] and retransmits the erroneous
data.
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Section 12 Smart Card Interface
12.3.4
Register Settings
Table 12.3 shows a bit map of the registers used by the smart card interface.
Bits indicated as 0 or 1 must be set to the value shown. The setting of other bits is described
below.
Table 12.3 Smart Card Interface Register Settings
Bit
Register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SMR
0
0
1
O/E
1
0
CKS1
CKS0
BRR
BRR7
BRR6
BRR5
BRR4
BRR3
BRR2
BRR1
BRR0
SCR
TIE
RIE
TE
RE
0
0
0
CKE0
TDR
TDR7
TDR6
TDR5
TDR4
TDR3
TDR2
TDR1
TDR0
SSR
TDRE
RDRF
ORER
ERS
PER
TEND
0
0
RDR
RDR7
RDR6
RDR5
RDR4
RDR3
RDR2
RDR1
RDR0
—
—
—
—
SDIR
SINV
—
SMIF
SCMR
Note:
—: Unused bit.
SMR Setting: The O/E bit is cleared to 0 if the IC card is of the direct convention type, and set to
1 if of the inverse convention type.
Bits CKS1 and CKS0 select the clock source of the on-chip baud rate generator. See section
12.3.5, Clock.
BRR Setting: BRR is used to set the bit rate. See section 12.3.5, Clock, for the method of
calculating the value to be set.
SCR Setting: The function of the TIE, RIE, TE, and RE bits is the same as for the normal SCI.
For details, see section 11, Serial Communication Interface.
Bit CKE0 specifies the clock output. Set these bits to 0 if a clock is not to be output, or to 1 if a
clock is to be output.
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Section 12 Smart Card Interface
SCMR Setting: The SDIR bit is cleared to 0 if the IC card is of the direct convention type, and set
to 1 if of the inverse convention type.
The SINV bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the
inverse convention type.
The SMIF bit is set to 1 in the case of the Smart Card interface.
Examples of register settings and the waveform of the start character are shown below for the two
types of IC card (direct convention and inverse convention).
• Direct convention (SDIR = SINV = O/E = 0)
(Z)
A
Z
Z
A
Z
Z
Z
A
A
Z
Ds
D0
D1
D2
D3
D4
D5
D6
D7
Dp
(Z)
State
With the direct convention type, the logic 1 level corresponds to state Z and the logic 0 level to
state A, and transfer is performed in LSB-first order. The start character data above is H'3B.
The parity bit is 1 since even parity is stipulated for the Smart Card.
• Inverse convention (SDIR = SINV = O/E = 1)
(Z)
A
Z
Z
A
A
A
A
A
A
Z
Ds
D7
D6
D5
D4
D3
D2
D1
D0
Dp
(Z)
State
With the inverse convention type, the logic 1 level corresponds to state A and the logic 0 level
to state Z, and transfer is performed in MSB-first order. The start character data above is H'3F.
The parity bit is 0, corresponding to state Z, since even parity is stipulated for the Smart Card.
With the H8/3039 Group, inversion specified by the SINV bit applies only to the data bits, D7
to D0. For parity bit inversion, the O/E bit in SMR is set to odd parity mode (the same applies
to both transmission and reception).
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Section 12 Smart Card Interface
12.3.5
Clock
Only an internal clock generated by the on-chip baud rate generator can be used as the
transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1 and
CKS0 bits in SMR. The formula for calculating the bit rate is as shown below. Table 12.5 shows
some sample bit rates.
If clock output is selected by setting CKE0 to 1, a clock with a frequency of 372 times the bit rate
is output from the SCK0 pin.
B=
φ
1488 × 2
2n–1
× (N + 1)
× 10
6
Where: N = Value set in BRR (0 ≤ N ≤ 255)
B = Bit rate (bit/s)
φ = Operating frequency* (MHz)
n = See table 12.4
Table 12.4 Correspondence between n and CKS1, CKS0
n
CKS1
CKS0
0
0
0
1
1
2
1
0
3
1
Note: * If the gear function is used to divide the system clock frequency, use the divided
frequency to calculate the bit rate. The equation above applies directly to 1/1 frequency
division.
Table 12.5 Examples of Bit Rate B (bit/s) for Various BRR Settings (When n = 0)
φ (MHz)
N
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
0
9600.0
13440.9
14400.0
17473.1
19200.0
21505.4
24193.5
1
4800.0
6720.4
7200.0
8736.6
9600.0
10752.7
12096.8
2
3200.0
4480.3
4800.0
5824.4
6400.0
7168.5
8064.5
Note: Bit rates are rounded off to one decimal place.
Rev.3.00 Mar. 26, 2007 Page 403 of 682
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Section 12 Smart Card Interface
The method of calculating the value from the operating frequency and bit rate, on the other hand,
is shown below. N is an integer, 0 ≤ N ≤ 255, and the smaller error is specified.
N=
φ
1488 × 2
× 10 – 1
6
2n–1
×B
Table 12.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0)
φ (MHz)
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
bit/s
N Error
N Error
N Error
N Error
N Error
N Error
N Error
9600
0
1
1
1
1
1
2
0.00
30
25
8.99
0.00
12.01
Table 12.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
φ (MHz)
Maximum Bit Rate (bit/s)
N
n
7.1424
9600
0
0
10.00
13441
0
0
10.7136
14400
0
0
13.00
17473
0
0
14.2848
19200
0
0
16.00
21505
0
0
18.00
24194
0
0
The bit rate error is given by the following formula:
Error (%) = (
φ
1488 × 2
2n–1
× B × (N + 1)
Rev.3.00 Mar. 26, 2007 Page 404 of 682
REJ09B0353-0300
× 10 – 1) × 100
6
15.99
Section 12 Smart Card Interface
12.3.6
Data Transfer Operations
Initialization
Before transmitting and receiving data, initialize the SCI as described below. Initialization is also
necessary when switching from transmit mode to receive mode, or vice versa.
[1] Clear the TE and RE bits in SCR to 0.
[2] Clear the error flags ERS, PER, and ORER in SSR to 0.
[3] Set the O/E bit and CKS1 and CKS0 bits in SMR. Clear the C/A, CHR, and MP bits to 0, and
set the STOP and PE bits to 1.
[4] Set the SMIF, SDIR, and SINV bits in SCMR.
When the SMIF bit is set to 1, the TxD0 and RxD0 pins are both switched from ports to SCI
pins, and are placed in the high-impedance state.
[5] Set the value corresponding to the bit rate in BRR.
[6] Set the CKE0 bit in SCR. Clear the TIE, RIE, TE, RE, MPIE, TEIE and CKE1 bits to 0.
If the CKE0 bit is set to 1, the clock is output from the SCK0 pin.
[7] Wait at least one bit interval, then set the TIE, RIE, TE, and RE bits in SCR. Do not set the TE
bit and RE bit at the same time, except for self-diagnosis.
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Section 12 Smart Card Interface
Serial Data Transmission
As data transmission in smart card mode involves error signal sampling and retransmission
processing, the processing procedure is different from that for the normal SCI. Figure 12.4 shows
an example of the transmission processing flow, and figure 12.5 shows the relation between a
transmit operation and the internal registers.
[1] Perform Smart Card interface mode initialization as described above in Initialization.
[2] Check that the ERS error flag in SSR is cleared to 0.
[3] Repeat steps [2] and [3] until it can be confirmed that the TEND flag in SSR is set to 1.
[4] Write the transmit data to TDR, clear the TDRE flag to 0, and perform the transmit operation.
The TEND flag is cleared to 0.
[5] When transmitting data continuously, go back to step [2].
[6] To end transmission, clear the TE bit to 0.
With the above processing, interrupt servicing is possible.
If transmission ends and the TEND flag is set to 1 while the TIE bit is set to 1 and interrupt
requests are enabled, a transmit data empty interrupt (TXI) request will be generated. If an error
occurs in transmission and the ERS flag is set to 1 while the RIE bit is set to 1 and interrupt
requests are enabled, a transfer error interrupt (ERI) request will be generated.
For details, see the following Interrupt Operations.
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Section 12 Smart Card Interface
Start
Initialization
Start transmission
ERS = 0?
No
Yes
Error processing
No
TEND = 1?
Yes
Write data to TDR,
and clear TDRE flag
in SSR to 0
No
All data transmitted?
Yes
No
ERS = 0?
Yes
Error processing
No
TEND = 1?
Yes
Clear TE bit to 0
End
Figure 12.4 Example of Transmission Processing Flow
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Section 12 Smart Card Interface
TDR
(1) Data write
Data 1
(2) Transfer from
TDR to TSR
Data 1
(3) Serial data output
Data 1
TSR
(shift register)
Data 1
; Data remains in TDR
Data 1
I/O signal line output
In case of normal transmission: TEND flag is set
In case of transmit error:
ERS flag is set
Steps (2) and (3) above are repeated until the TEND flag is set
Note: When the ERS flag is set, it should be cleared until transfer of the last bit (D7 in LSB-first
transmission, D0 in MSB-first transmission) of the next transfer data has been completed.
Figure 12.5 Relation Between Transmit Operation and Internal Registers
Serial Data Reception
Data reception in Smart Card mode uses the same processing procedure as for the normal SCI.
Figure 12.6 shows an example of the transmission processing flow.
[1] Perform Smart Card interface mode initialization as described above in Initialization.
[2] Check that the ORER flag and PER flag in SSR are cleared to 0. If either flag is set, perform
the appropriate receive error processing, then clear both the ORER and the PER flag to 0.
[3] Repeat steps [2] and [3] until it can be confirmed that the RDRF flag is set to 1.
[4] Read the receive data from RDR.
[5] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2].
[6] To end reception, clear the RE bit to 0.
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Section 12 Smart Card Interface
Start
Initialization
Start reception
ORER = 0 and
PER = 0
No
Yes
Error processing
No
RDRF = 1?
Yes
Read RDR and clear
RDRF flag in SSR to 0
No
All data received?
Yes
Clear RE bit to 0
Figure 12.6 Example of Reception Processing Flow
With the above processing, interrupt servicing is possible.
If reception ends and the RDRF flag is set to 1 while the RIE bit is set to 1 and interrupt requests
are enabled, a receive data full interrupt (RXI) request will be generated. If an error occurs in
reception and either the ORER flag or the PER flag is set to 1, a transfer error interrupt (ERI)
request will be generated.
For details, see Interrupt Operation below.
If a parity error occurs during reception and the PER is set to 1, the received data is still
transferred to RDR, and therefore this data can be read.
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Section 12 Smart Card Interface
Mode Switching Operation
When switching from receive mode to transmit mode, first confirm that the receive operation has
been completed, then start from initialization, clearing RE bit to 0 and setting TE bit to 1. The
RDRF flag or the PER and ORER flags can be used to check that the receive operation has been
completed.
When switching from transmit mode to receive mode, first confirm that the transmit operation has
been completed, then start from initialization, clearing TE bit to 0 and setting RE bit to 1. The
TEND flag can be used to check that the transmit operation has been completed.
Interrupt Operation
There are three interrupt sources in smart card interface mode: transmit data empty interrupt (TXI)
requests, transfer error interrupt (ERI) requests, and receive data full interrupt (RXI) requests. The
transmit end interrupt (TEI) request is not used in this mode.
When the TEND flag in SSR is set to 1, a TXI interrupt request is generated.
When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated.
When any of flags ORER, PER, and ERS in SSR is set to 1, an ERI interrupt request is generated.
The relationship between the operating states and interrupt sources is shown in table 12.8.
Table 12.8 Smart Card Mode Operating States and Interrupt Sources
Operating State
Transmit Mode
Receive Mode
Flag
Mask Bit
Interrupt Source
Normal operation
TEND
TIE
TXI
Error
ERS
RIE
ERI
Normal operation
RDRF
RIE
RXI
Error
PER, ORER
RIE
ERI
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Section 12 Smart Card Interface
12.4
Usage Note
The following points should be noted when using the SCI as a smart card interface.
Receive Data Sampling Timing and Reception Margin in Smart Card Interface Mode
In smart card interface mode, the SCI operates on a basic clock with a frequency of 372 times the
transfer rate.
In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs
internal synchronization. Receive data is latched internally at the rising edge of the 186th pulse of
the basic clock. This is illustrated in figure 12.7.
372 clocks
186 clocks
0
185
185
371 0
371 0
Internal
basic
clock
Receive
data (RxD)
Start bit
D0
D1
Synchronization
sampling
timing
Data
sampling
timing
Figure 12.7 Receive Data Sampling Timing in Smart Card Mode
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Section 12 Smart Card Interface
Thus the reception margin in smart card interface mode is given by the following formula.
M = (0.5 –
1
2N
) – (L – 0.5) F –
D – 0.5
N
(1 + F) × 100%
Where M: Reception margin (%)
N: Ratio of bit rate to clock (N = 372)
D: Clock duty (D = 0 to 1.0)
L: Frame length (L = 10)
F: Absolute value of clock frequency deviation
Assuming values of F = 0 and D = 0.5 in the above formula, the reception margin formula is as
follows.
When D = 0.5 and F = 0,
M = (0.5 – 1/2 × 372) × 100%
= 49.866%
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Section 12 Smart Card Interface
Retransfer Operations
Retransfer operations are performed by the SCI in receive mode and transmit mode as described
below.
• Retransfer operation when SCI is in receive mode
Figure 12.8 illustrates the retransfer operation when the SCI is in receive mode.
[1] If an error is found when the received parity bit is checked, the PER bit in SSR is
automatically set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is
generated. The PER bit in SSR should be kept cleared to 0 until the next parity bit is sampled.
[2] The RDRF bit in SSR is not set for a frame in which an error has occurred.
[3] If no error is found when the received parity bit is checked, the PER bit in SSR is not set to 1.
[4] If no error is found when the received parity bit is checked, the receive operation is judged to
have been completed normally, and the RDRF flag in SSR is automatically set to 1. If the RIE
bit in SCR is enabled at this time, an RXI interrupt request is generated.
[5] When a normal frame is received, the pin retains the high-impedance state at the timing for
error signal transmission.
nth transfer frame
Transfer
frame n+1
Retransferred frame
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE
(DE)
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
Ds D0 D1 D2 D3 D4
RDRF
[2]
[4]
[1]
[3]
PER
Figure 12.8 Retransfer Operation in SCI Receive Mode
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REJ09B0353-0300
Section 12 Smart Card Interface
• Retransfer operation when SCI is in transmit mode
Figure 12.9 illustrates the retransfer operation when the SCI is in transmit mode.
[6] If an error signal is sent back from the receiving end after transmission of one frame is
completed, the ERS bit in SSR is set to 1. If the RIE bit in SCR is enabled at this time, an ERI
interrupt request is generated. The ERS bit in SSR should be kept cleared to 0 until the next
parity bit is sampled.
[7] The TEND bit in SSR is not set for a frame for which an error signal indicating an abnormality
is received.
[8] If an error signal is not sent back from the receiving end, the ERS bit in SSR is not set.
[9] If an error signal is not sent back from the receiving end, transmission of one frame, including
a retransfer, is judged to have been completed, and the TEND bit in SSR is set to 1. If the TIE
bit in SCR is enabled at this time, a TXI interrupt request is generated.
nth transfer frame
Transfer
frame n+1
Retransferred frame
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE
Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp
(DE)
Ds D0 D1 D2 D3 D4
TDRE
Transfer to TSR
from TDR
Transfer to TSR from TDR
Transfer to TSR from TDR
TEND
[7]
[9]
ERS
[6]
[8]
Figure 12.9 Retransfer Operation in SCI Transmit Mode
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Section 13 A/D Converter
Section 13 A/D Converter
13.1
Overview
The H8/3039 Group includes a 10-bit successive-approximations A/D converter with a selection
of up to eight analog input channels.
When the A/D converter is not used, it can be halted independently to conserve power. For details
see section 17.6, Module Standby Function.
13.1.1
Features
A/D converter features are listed below.
• 10-bit resolution
• Eight input channels
• Selectable analog conversion voltage range
The analog voltage conversion range can be programmed by input of an analog reference
voltage at the AVCC pin.
• High-speed conversion
Conversion time: minimum 7.4 µs per channel (with 18 MHz system clock)
• Two conversion modes
Single mode: A/D conversion of one channel
Scan mode: continuous conversion on one to four channels
• Four 16-bit data registers
A/D conversion results are transferred for storage into data registers corresponding to the
channels.
• Sample-and-hold function
• A/D conversion can be externally triggered
• A/D interrupt requested at end of conversion
At the end of A/D conversion, an A/D end interrupt (ADI) can be requested.
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Section 13 A/D Converter
13.1.2
Block Diagram
Figure 13.1 shows a block diagram of the A/D converter.
Internal
data bus
AV SS
AN 0
AN 5
ADCR
ADCSR
ADDRD
ADDRC
–
AN 2
AN 4
ADDRB
+
AN 1
AN 3
ADDRA
10-bit D/A
Successiveapproximations register
AVCC
Bus interface
Module data bus
Analog
multiplexer
φ/8
Comparator
Control circuit
Sample-andhold circuit
φ/16
AN 6
AN 7
ADI
interrupt
ADTRG
Legend:
ADCR:
ADCSR:
ADDRA:
ADDRB:
ADDRC:
ADDRD:
A/D control register
A/D control/status register
A/D data register A
A/D data register B
A/D data register C
A/D data register D
Figure 13.1 A/D Converter Block Diagram
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REJ09B0353-0300
Section 13 A/D Converter
13.1.3
Input Pins
Table 13.1 summarizes the A/D converter's input pins. The eight analog input pins are divided into
two groups: group 0 (AN0 to AN3), and group 1 (AN4 to AN7). AVCC and AVSS are the power
supply for the analog circuits in the A/D converter.
Table 13.1 A/D Converter Pins
Abbreviation
I/O
Analog power supply pin
AVCC
Input
Analog power supply and reference voltage
Analog ground pin
AVSS
Input
Analog ground and reference voltage
Analog input pin 0
AN0
Input
Group 0 analog inputs
Analog input pin 1
AN1
Input
Analog input pin 2
AN2
Input
Analog input pin 3
AN3
Input
Analog input pin 4
AN4
Input
Analog input pin 5
AN5
Input
Analog input pin 6
AN6
Input
Analog input pin 7
AN7
Input
A/D external trigger input pin
ADTRG
Input
Pin Name
Function
Group 1 analog inputs
External trigger input for starting A/D
conversion
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Section 13 A/D Converter
13.1.4
Register Configuration
Table 13.2 summarizes the A/D converter's registers.
Table 13.2 A/D Converter Registers
1
Address*
Name
Abbreviation
R/W
Initial Value
H'FFE0
A/D data register A (high)
ADDRAH
R
H'00
H'FFE1
A/D data register A (low)
ADDRAL
R
H'00
H'FFE2
A/D data register B (high)
ADDRBH
R
H'00
H'FFE3
A/D data register B (low)
ADDRBL
R
H'00
H'FFE4
A/D data register C (high)
ADDRCH
R
H'00
H'FFE5
A/D data register C (low)
ADDRCL
R
H'00
H'FFE6
A/D data register D (high)
ADDRDH
R
H'00
H'FFE7
A/D data register D (low)
ADDRDL
R
H'FFE8
A/D control/status register
ADCSR
R/(W)*
H'FFE9
A/D control register
ADCR
R/W
Notes: 1. Lower 16 bits of the address
2. Only 0 can be written in bit 7 to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 418 of 682
REJ09B0353-0300
H'00
2
H'00
H'7F
Section 13 A/D Converter
13.2
Register Descriptions
13.2.1
A/D Data Registers A to D (ADDRA to ADDRD)
Bit
14
12
10
8
6
5
4
3
2
1
0
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 —
15
13
11
9
7
—
—
—
—
—
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
(n = A to D)
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
ADDRn
A/D conversion data
10-bit data giving an
A/D conversion result
Reserved bits
The four A/D data registers (ADDRA to ADDRD) are 16-bit read-only registers that store the
results of A/D conversion.
An A/D conversion produces 10-bit data, which is transferred for storage into the A/D data
register corresponding to the selected channel. The upper 8 bits of the result are stored in the upper
byte of the A/D data register. The lower 2 bits are stored in the lower byte. Bits 5 to 0 of an A/D
data register are reserved bits that always read 0. Table 13.3 indicates the pairings of analog input
channels and A/D data registers.
The CPU can always read the A/D data registers. The upper byte can be read directly, but the
lower byte is read through a temporary register (TEMP). For details see section 13.3, CPU
Interface.
The A/D data registers are initialized to H'0000 by a reset and in standby mode.
Table 13.3 Analog Input Channels and A/D Data Registers
Analog Input Channel
Group 0
Group 1
A/D Data Register
AN0
AN4
ADDRA
AN1
AN5
ADDRB
AN2
AN6
ADDRC
AN3
AN7
ADDRD
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Section 13 A/D Converter
13.2.2
A/D Control/Status Register (ADCSR)
Bit
7
6
5
4
3
2
1
0
ADF
ADIE
ADST
SCAN
CKS
CH2
CH1
CH0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/(W)*
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Channel select 2 to 0
These bits select analog
input channels
Clock select
Selects the A/D conversion time
Scan mode
Selects single mode or scan mode
A/D start
Starts or stops A/D conversion
A/D interrupt enable
Enables and disables A/D end interrupts
A/D end flag
Indicates end of A/D conversion
Note: * Only 0 can be written to clear the flag.
ADCSR is an 8-bit readable/writable register that selects the mode and controls the A/D converter.
ADCSR is initialized to H'00 by a reset and in standby mode.
Bit 7—A/D End Flag (ADF): Indicates the end of A/D conversion.
Bit 7
ADF
Description
0
[Clearing condition]
Cleared by reading ADF while ADF = 1, then writing 0 in ADF
1
[Setting conditions]
•
Single mode: A/D conversion ends
•
Scan mode:
A/D conversion ends in all selected channels
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(Initial value)
Section 13 A/D Converter
Bit 6—A/D Interrupt Enable (ADIE): Enables or disables the interrupt (ADI) requested at the
end of A/D conversion.
Bit 6
ADIE
Description
0
A/D end interrupt request (ADI) is disabled
1
A/D end interrupt request (ADI) is enabled
(Initial value)
Bit 5—A/D Start (ADST): Starts or stops A/D conversion. The ADST bit remains set to 1 during
A/D conversion. It can also be set to 1 by external trigger input at the ADTRG pin.
Bit 5
ADST
Description
0
A/D conversion is stopped
1
Single mode: A/D conversion starts; ADST is automatically cleared to 0 when
conversion ends.
(Initial value)
Scan mode: A/D conversion starts and continues, cycling among the selected
channels, until ADST is cleared to 0 by software, by a reset, or by a
transition to standby mode.
Bit 4—Scan Mode (SCAN): Selects single mode or scan mode. For further information on
operation in these modes, see section 13.4, Operation. Clear the ADST bit to 0 before switching
the conversion mode.
Bit 4
SCAN
Description
0
Single mode
1
Scan mode
(Initial value)
Bit 3—Clock Select (CKS): Selects the A/D conversion time. Clear the ADST bit to 0 before
switching the conversion time.
Bit 3
CKS
Description
0
Conversion time = 266 states (maximum)
1
Conversion time = 134 states (maximum)
(Initial value)
Bits 2 to 0—Channel Select 2 to 0 (CH2 to CH0): These bits and the SCAN bit select the analog
input channels. Clear the ADST bit to 0 before changing the channel selection.
Rev.3.00 Mar. 26, 2007 Page 421 of 682
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Section 13 A/D Converter
Group
Selection
Channel Selection
Description
CH2
CH1
CH0
Single Mode
Scan Mode
0
0
0
AN0 (Initial value)
AN0
1
AN1
AN0, AN1
0
AN2
AN0 to AN2
1
AN3
AN0 to AN3
0
AN4
AN4
1
AN5
AN4, AN5
0
AN6
AN4 to AN6
1
AN7
AN4 to AN7
1
1
0
1
13.2.3
A/D Control Register (ADCR)
Bit
7
6
5
4
3
2
1
0
TRGE
—
—
—
—
—
—
—
Initial value
0
1
1
1
1
1
1
1
Read/Write
R/W
—
—
—
—
—
—
—
Reserved bits
Trigger enable
Enables or disables external triggering of A/D conversion
ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D
conversion. ADCR is initialized to H'7F by a reset and in standby mode.
Bit 7—Trigger Enable (TRGE): Enables or disables external triggering of A/D conversion.
Bit 7
TRGE
Description
0
A/D conversion cannot be externally triggered
1
A/D conversion starts at the falling edge of the external trigger signal (ADTRG)
Bits 6 to 0—Reserved: These bits cannot be modified and are always read as 1.
Rev.3.00 Mar. 26, 2007 Page 422 of 682
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(Initial value)
Section 13 A/D Converter
13.3
CPU Interface
ADDRA to ADDRD are 16-bit registers, but they are connected to the CPU by an 8-bit data bus.
Therefore, although the upper byte can be accessed directly by the CPU, the lower byte is read
through an 8-bit temporary register (TEMP).
An A/D data register is read as follows. When the upper byte is read, the upper-byte value is
transferred directly to the CPU and the lower-byte value is transferred into TEMP. Next, when the
lower byte is read, the TEMP contents are transferred to the CPU.
When reading an A/D data register, always read the upper byte before the lower byte. It is possible
to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained.
Figure 13.2 shows the data flow for access to an A/D data register.
Upper-byte read
CPU
(H'AA)
Module data bus
Bus interface
TEMP
(H'40)
ADDRnH
(H'AA)
ADDRnL
(H'40)
(n = A to D)
Lower-byte read
CPU
(H'40)
Module data bus
Bus interface
TEMP
(H'40)
ADDRnH
(H'AA)
ADDRnL
(H'40)
(n = A to D)
Figure 13.2 A/D Data Register Access Operation (Reading H'AA40)
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Section 13 A/D Converter
13.4
Operation
The A/D converter operates by successive approximations with 10-bit resolution. It has two
operating modes: single mode and scan mode.
13.4.1
Single Mode (SCAN = 0)
Single mode should be selected when only one A/D conversion on one channel is required. A/D
conversion starts when the ADST bit is set to 1 by software, or by external trigger input. The
ADST bit remains set to 1 during A/D conversion and is automatically cleared to 0 when
conversion ends.
When conversion ends the ADF bit is set to 1. If the ADIE bit is also set to 1, an ADI interrupt is
requested at this time. To clear the ADF flag to 0, first read ADCSR, then write 0 in ADF.
When the mode or analog input channel must be switched during analog conversion, to prevent
incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making
the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be
set at the same time as the mode or channel is changed.
Typical operations when channel 1 (AN1) is selected in single mode are described next.
Figure 13.3 shows a timing diagram for this example.
1. Single mode is selected (SCAN = 0), input channel AN1 is selected (CH2 = CH1 = 0, CH0 =
1), the A/D interrupt is enabled (ADIE = 1), and A/D conversion is started (ADST = 1).
2. When A/D conversion is completed, the result is transferred into ADDRB. At the same time
the ADF flag is set to 1, the ADST bit is cleared to 0, and the A/D converter becomes idle.
3. Since ADF = 1 and ADIE = 1, an ADI interrupt is requested.
4. The A/D interrupt handling routine starts.
5. The routine reads ADCSR, then writes 0 in the ADF flag.
6. The routine reads and processes the conversion result (ADDRB).
7. Execution of the A/D interrupt handling routine ends. After that, if the ADST bit is set to 1,
A/D conversion starts again and steps 2 to 7 are repeated.
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REJ09B0353-0300
Note: * Vertical arrows ( ) indicate instructions executed by software.
ADDRD
ADDRC
ADDRB
Read conversion result
A/D conversion result (2)
Idle
Clear *
A/D conversion result (1)
A/D conversion (2)
Set *
Read conversion result
Idle
State of channel 3
(AN 3)
ADDRA
Idle
State of channel 2
(AN 2)
Idle
Clear *
State of channel 1
(AN 1)
A/D conversion (1)
Set *
Idle
Idle
A/D conversion
starts
State of channel 0
(AN 0)
ADF
ADST
ADIE
Set *
Section 13 A/D Converter
Figure 13.3 Example of A/D Converter Operation
(Single Mode, Channel 1 Selected)
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Section 13 A/D Converter
13.4.2
Scan Mode (SCAN = 1)
Scan mode is useful for monitoring analog inputs in a group of one or more channels. When the
ADST bit is set to 1 by software or external trigger input, A/D conversion starts on the first
channel in the group (AN0 when CH2 = 0, AN4 when CH2 = 1). When two or more channels are
selected, after conversion of the first channel ends, conversion of the second channel (AN1 or AN5)
starts immediately. A/D conversion continues cyclically on the selected channels until the ADST
bit is cleared to 0. The conversion results are transferred for storage into the A/D data registers
corresponding to the channels.
When the mode or analog input channel selection must be changed during analog conversion, to
prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After
making the necessary changes, set the ADST bit to 1. A/D conversion will start again from the
first channel in the group. The ADST bit can be set at the same time as the mode or channel
selection is changed.
Typical operations when three channels in group 0 (AN0 to AN2) are selected in scan mode are
described next. Figure 13.4 shows a timing diagram for this example.
1. Scan mode is selected (SCAN = 1), scan group 0 is selected (CH2 = 0), analog input channels
AN0 to AN2 are selected (CH1 = 1, CH0 = 0), and A/D conversion is started (ADST = 1).
2. When A/D conversion of the first channel (AN0) is completed, the result is transferred into
ADDRA. Next, conversion of the second channel (AN1) starts automatically.
3. Conversion proceeds in the same way through the third channel (AN2).
4. When conversion of all selected channels (AN0 to AN2) is completed, the ADF flag is set to 1
and conversion of the first channel (AN0) starts again. If the ADIE bit is set to 1, an ADI
interrupt is requested at this time.
5. Steps 2 to 4 are repeated as long as the ADST bit remains set to 1. When the ADST bit is
cleared to 0, A/D conversion stops. After that, if the ADST bit is set to 1, A/D conversion
starts again from the first channel (AN0).
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Idle
Idle
Idle
A/D conversion (1)
Transfer
A/D conversion result (1)
Idle
Idle
Clear*1
Idle
A/D conversion result (3)
A/D conversion result (2)
A/D conversion result (4)
Idle
A/D conversion (5)*2
A/D conversion time
A/D conversion (4)
Idle
A/D conversion (3)
Idle
A/D conversion (2)
Notes: 1. Vertical arrows ( ) indicate instructions executed by software.
2. Data currently being converted is ignored.
ADDRD
ADDRC
ADDRB
ADDRA
State of channel 3
(AN 3)
State of channel 2
(AN 2)
State of channel 1
(AN 1)
State of channel 0
(AN 0)
ADF
ADST
Set *1
Continuous A/D conversion
Clear* 1
Section 13 A/D Converter
Figure 13.4 Example of A/D Converter Operation
(Scan Mode, Channels AN0 to AN2 Selected)
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Section 13 A/D Converter
13.4.3
Input Sampling and A/D Conversion Time
The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog
input at a time tD after the ADST bit is set to 1, then starts conversion. Figure 13.5 shows the A/D
conversion timing. Table 13.4 indicates the A/D conversion time.
As indicated in figure 13.5, the A/D conversion time includes tD and the input sampling time. The
length of tD varies depending on the timing of the write access to ADCSR. The total conversion
time therefore varies within the ranges indicated in table 13.4.
In scan mode, the values given in table 13.4 apply to the first conversion. In the second and
subsequent conversions the conversion time is fixed at 256 states when CKS = 0 or 128 states
when CKS = 1.
(1)
φ
Address bus
(2)
Write signal
Input sampling
timing
ADF
tD
t SPL
t CONV
Legend:
(1):
ADCSR write cycle
(2):
ADCSR address
tD :
Synchronization delay
t SPL : Input sampling time
t CONV: A/D conversion time
Figure 13.5 A/D Conversion Timing
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Section 13 A/D Converter
Table 13.4 A/D Conversion Time (Single Mode)
CKS = 0
CKS = 1
Symbol
Min
Typ
Max
Min
Typ
Max
Synchronization delay
tD
10
—
17
6
—
9
Input sampling time
tSPL
—
63
—
—
31
—
A/D conversion time
tCONV
259
—
266
131
—
134
Note: Values in the table are numbers of states.
13.4.4
External Trigger Input Timing
A/D conversion can be externally triggered. When the TRGE bit is set to 1 in ADCR, external
trigger input is enabled at the ADTRG pin. A high-to-low transition at the ADTRG pin sets the
ADST bit to 1 in ADCSR, starting A/D conversion. Other operations, in both single and scan
modes, are the same as if the ADST bit had been set to 1 by software. Figure 13.6 shows the
timing.
φ
ADTRG
Internal trigger
signal
ADST
A/D conversion
Figure 13.6 External Trigger Input Timing
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Section 13 A/D Converter
13.5
Interrupts
The A/D converter generates an interrupt (ADI) at the end of A/D conversion. The ADI interrupt
request can be enabled or disabled by the ADIE bit in ADCSR.
13.6
Usage Notes
The following points should be noted when using the A/D converter.
Setting Range of Analog Power Supply and Other Pins
(1) Analog input voltage range
The voltage applied to analog input pins AN0 to AN7 during A/D conversion should be in the
range AVSS ≤ ANn ≤ AVCC.
(2) Relation between AVCC, AVSS and VCC, VSS
As the relationship between AVCC, AVSS and VCC, VSS, set AVSS = VSS. If the A/D converter is
not used, the AVCC and AVSS pins must on no account be left open.
If conditions (1) and (2) above are not met, the reliability of the device may be adversely affected.
Notes on Board Design
In board design, digital circuitry and analog circuitry should be as mutually isolated as possible,
and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close
proximity should be avoided as far as possible. Failure to do so may result in incorrect operation
of the analog circuitry due to inductance, adversely affecting A/D conversion values.
Also, digital circuitry must be isolated from the analog input signals (AN0 to AN7), and analog
power supply and reference voltage (AVCC) by the analog ground (AVSS). Also, the analog ground
(AVSS) should be connected at one point to a stable digital ground (VSS) on the board.
Notes on Noise Countermeasures
A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive
surge at the analog input pins (AN0 to AN7) and analog power supply (AVCC) should be connected
between AVCC and AVSS as shown in figure 13.7.
Also, the bypass capacitors connected to AVCC and the filter capacitor connected to AN0 to AN7
must be connected to AVSS.
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Section 13 A/D Converter
If a filter capacitor is connected as shown in figure 13.7, the input currents at the analog input pins
(AN0 to AN7) are averaged, and so an error may arise. Also, when A/D conversion is performed
frequently, as in scan mode, if the current charged and discharged by the capacitance of the
sample-and-hold circuit in the A/D converter exceeds the current input via the input impedance
(Rin), an error will arise in the analog input pin voltage. Therefore careful consideration is required
when deciding the circuit constants.
AVCC
100 Ω
Rin*2
AN0 to AN7
*1
0.1 µF
AVSS
Notes:
Values are reference values.
1.
10 µF
0.01 µF
2. Rin: Input impedance
Figure 13.7 Example of Analog Input Protection Circuit
Table 13.5 Analog Pin Specifications
Item
Min
Max
Unit
Analog input capacitance
—
20
pF
Permissible signal source impedance
—
10*
kΩ
Note:
*
When VCC = 4.0 V to 5.5 V and φ ≤ 12 MHz
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REJ09B0353-0300
Section 13 A/D Converter
10 kΩ
AN0 to
AN7
To A/D
converter
20 pF
Note: Values are reference values.
Figure 13.8 Analog Input Pin Equivalent Circuit
A/D Conversion Precision Definitions
H8/3039 Group A/D conversion precision definitions are given below.
• Resolution
The number of A/D converter digital output codes
• Offset error
The deviation of the analog input voltage value from the ideal A/D conversion characteristic
when the digital output changes from the minimum voltage value B'0000000000 (H'000) to
B'0000000001 (H'001) (see figure 13.10).
• Full-scale error
The deviation of the analog input voltage value from the ideal A/D conversion characteristic
when the digital output changes from B'1111111110 (H'3FE) to B'1111111111 (H'3FF) (see
figure 13.10).
• Quantization error
The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 13.9).
• Nonlinearity error
The error with respect to the ideal A/D conversion characteristic between the zero voltage and
the full-scale voltage. Does not include the offset error, full-scale error, or quantization error.
• Absolute precision
The deviation between the digital value and the analog input value. Includes the offset error,
full-scale error, quantization error, and nonlinearity error.
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Section 13 A/D Converter
Digital output
Ideal A/D conversion
characteristic
111
110
101
100
011
Quantization error
010
001
000
1
8
2
8
3
8
4
8
5
8
6
8
7
8
FS
Analog
input voltage
Figure 13.9 A/D Conversion Precision Definitions (1)
Full-scale error
Digital output
Ideal A/D conversion
characteristic
Nonlinearity
error
Actual A/D conversion
characteristic
FS
Offset error
Analog
input voltage
Figure 13.10 A/D Conversion Precision Definitions (2)
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Section 13 A/D Converter
Permissible Signal Source Impedance
H8/3039 Group analog input is designed so that conversion precision is guaranteed for an input
signal for which the signal source impedance is 10 kΩ or less. This specification is provided to
enable the A/D converter's sample-and-hold circuit input capacitance to be charged within the
sampling time; if the sensor output impedance exceeds 10 kΩ, charging may be insufficient and it
may not be possible to guarantee the A/D conversion precision.
When converting in the single mode, if a large capacitance is provided externally, the input load
will essentially comprise only the internal input resistance of 10 kΩ, and the signal source
impedance is ignored.
However, since a low-pass filter effect is obtained in this case, it may not be possible to follow an
analog signal with a large differential coefficient (e.g., voltage regulation 5 mV/µs or greater).
When converting a high-speed analog signal and when performing conversion in the scan mode, a
low-impedance buffer should be inserted.
Influences on Absolute Precision
Adding capacitance results in coupling with GND, and therefore noise in GND may adversely
affect absolute precision. Be sure to make the connection to an electrically stable GND such as
AVSS.
Care is also required to insure that filter circuits do not communicate with digital signals on the
mounting board, thus acting as antennas.
H8/3039 Group
Sensor output
impedance
Up to 10 kΩ
A/D converter
equivalent circuit
10 kΩ
Sensor input
Low-pass
filter C
Up to 0.1 µF
Cin =
15 pF
Note: Values are reference values.
Figure 13.11 Example of Analog Input Circuit
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REJ09B0353-0300
20 pF
Section 14 RAM
Section 14 RAM
14.1
Overview
The H8/3039 has 4 kbytes of on-chip static RAM, H8/3038 has 2 kbytes, H8/3037 has 1 kbyte,
and H8/3036 has 512 bytes. The RAM is connected to the CPU by a 16-bit data bus. The CPU
accesses both byte data and word data in two states, making the RAM suitable for rapid data
transfer.
The RAM enable bit (RAME) in the system control register (SYSCR) can enable or disable the
on-chip RAM.
Table 14.1 shows the address of the on-chip RAM in each operating mode.
Table 14.1 The Address of the On-Chip RAM in Each Operating Mode
H8/3039
(4 kbytes)
H8/3038
(2 kbytes)
H8/3037
(1k byte)
H8/3036
(512 bytes)
Modes 1, 5, 7
H'FEF10 to
H'FFF0F
H'FF710 to
H'FFF0F
H'FFB10 to
H'FFF0F
H'FFD10 to
H'FFF0F
Mode 3
H'FFEF10 to
H'FFFF0F
H'FFF710 to
H'FFFF0F
H'FFFB10 to
H'FFFF0F
H'FFFD10 to
H'FFFF0F
Mode 6
H'F710 to
H'FF0F
H'F710 to
H'FF0F
H'FB10 to
H'FF0F
H'FD10 to
H'FF0F
Mode
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Section 14 RAM
14.1.1
Block Diagram
Figure 14.1 shows a block diagram of the on-chip RAM.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
Bus interface
SYSCR
H'FEF10*
H'FEF11*
H'FEF12*
H'FEF13*
On-chip RAM
H'FFF0E*
H'FFF0F*
Even addresses
Odd addresses
Legend:
SYSCR: System control register
Note: * Lower 20 bits of the address
Figure 14.1 RAM Block Diagram (H8/3039 in Modes 1, 5 and 7)
14.1.2
Register Configuration
The on-chip RAM is controlled by the system control register (SYSCR). Table 14.2 gives the
address and initial value of SYSCR.
Table 14.2 RAM Control Register
Address*
Name
Abbreviation
R/W
Initial Value
H'FFF2
System control register
SYSCR
R/W
H'0B
Note:
*
Lower 16 bits of the address
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Section 14 RAM
14.2
System Control Register (SYSCR)
Bit
7
6
5
4
3
2
1
0
SSBY
STS2
STS1
STS0
UE
NMIEG
—
RAME
Initial value
0
0
0
0
1
0
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
RAM enable bit
Enables or
disables
on-chip RAM
Reserved bit
NMI edge select
User bit enable
Standby timer select 2 to 0
Software standby
One function of SYSCR is to enable or disable access to the on-chip RAM. The on-chip RAM is
enabled or disabled by the RAME bit in SYSCR. For details about the other bits, see section 3.3,
System Control Register (SYSCR).
Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is
initialized at the rising edge of the input at the RES pin. It is not initialized in software standby
mode.
Bit 0
RAME
Description
0
On-chip RAM is disabled
1
On-chip RAM is enabled
(Initial value)
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Section 14 RAM
14.3
Operation
When the RAME bit is set to 1, the on-chip RAM is enabled. This LSI can access the on-chip
RAM when addressing the addresses shown in table 14.1 in each operation mode. When the
RAME bit is cleared to 0 in modes 1, 3, and 5 (expanded modes), external address space is
accessed. When the RAME bit is cleared to 0 in modes 6 and 7 (single-chip modes), the on-chip
RAM is not accessed. Read operation always reads H'FF and disables writing.
The on-chip RAM is connected to the CPU by a 16-bit wide data bus and can be read and written
on a byte or a word basis.
Byte data can be accessed in two states using the higher 8 bits of the data bus. Word data
beginning from an even address can be accessed in two states using the 16-bit data bus.
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Section 15 ROM
Section 15 ROM
15.1
Overview
The H8/3039 has 128 kbytes of on-chip ROM (flash memory or mask ROM), the H8/3038 has 64
kbytes, the H8/3037 has 32 kbytes and H8/3036 has 16 kbytes. The ROM is connected to the CPU
by a 16-bit data bus. The CPU accesses both byte and word data in two states, enabling rapid data
transfer.
The mode pins (MD2 to MD0) can be set to enable or disable the on-chip ROM. See table 15.1.
The on-chip flash memory product (H8/3039F-ZTAT) can be erased and programmed on-board as
well as with a general-purpose PROM programmer.
Table 15.1 Operating Mode and ROM
Mode Pins
Mode
MD2
MD1
MD0
On-Chip ROM
Mode 1
(1-Mbyte expanded mode with on-chip ROM disabled)
0
0
1
Disabled (external
address area)
Mode 2
(1-Mbyte expanded mode with on-chip ROM disabled)*
0
1
0
Mode 3
(16-Mbyte expanded mode with on-chip ROM disabled)
0
1
1
Mode 4
1
(16-Mbyte expanded mode with on-chip ROM disabled)*
0
0
Mode 5
(16-Mbyte expanded mode with on-chip ROM enabled)
1
0
1
Mode 6 (single-chip normal mode)
1
1
0
Mode 7 (single-chip advanced mode)
1
1
1
Note:
*
Enabled
Modes 2 and 4 cannot be used with this LSI. Do not set the mode pin to mode 2 or 4.
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Section 15 ROM
15.2
Overview of Flash Memory
15.2.1
Features
The features of the flash memory are summarized below.
• Four flash memory operating modes
Program mode
Erase mode
Program-verify mode
Erase-verify mode
• Programming/erase methods
The flash memory is programmed 32 bytes at a time. Erasing is performed by block erase. The
block to be erased can be specified by setting the corresponding bit. There are block areas of
32 kbytes × 3 blocks, 28 kbytes × 1 block, and 1 kbyte × 4 blocks.
• Programming/erase times
The flash memory programming time is 10 ms (typ.) for simultaneous 32-byte programming,
equivalent to 300 µs (typ.) per byte, and the erase time is 100 ms (typ.) per block.
• Reprogramming capability
The flash memory can be reprogrammed up to 100 times.
• On-board programming modes
There are two modes in which flash memory can be programmed/erased/verified on-board:
Boot mode
User program mode
• Automatic bit rate adjustment
With data transfer in boot mode, the this LSI's bit rate can be automatically adjusted to match
the transfer bit rate of the host (9600 bps and 4800 bps).
• Flash memory emulation by RAM
Part of the RAM area can be overlapped onto flash memory, to emulate flash memory updates
in real time.
• PROM mode
Flash memory can be programmed/erased in PROM mode, using a PROM programmer, as
well as in on-board programming mode.
• Protect modes
There are three protect modes, hardware, software, and error protect, which allow protected
status to be designated for flash memory program/erase/verify operations.
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Section 15 ROM
15.2.2
Block Diagram
Figure 15.1 shows a block diagram of the flash memory.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
FLMCR*2
EBR*2
RAMCR*2
Bus interface/controller
Operating
mode
FWE pin*1
Mode pins
FLMSR*2
H'00000
H'00001
H'00002
H'00003
On-chip Flash memory
(128 kbytes)
H'1FFFC
Legend:
FLMCR:
EBR:
RAMCR:
FLMSR:
H'1FFFD
H'1FFFE
H'1FFFF
even address odd address
Flash memory control register
Erase block register
RAM control register
Flash memory status register
Notes: 1. Functions as the FWE pin in the flash memory versions and as the RESO pin in the
mask ROM versions.
2. The registers that control the flash memory versions (FLMCR, EBR, RAMCR, and
FLMSR) are used in the flash memory versions only. They are not provided in the
mask ROM versions. Reading the corresponding addresses in a mask ROM version
will always return 1s, and writes to these addresses are disabled.
Figure 15.1 Block Diagram of Flash Memory
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Section 15 ROM
15.2.3
Pin Configuration
The flash memory is controlled by means of the pins shown in table 15.2.
Table 15.2 Flash Memory Pins
Pin Name
Abbreviation
I/O
Function
Reset
RES
Input
Reset
Flash write enable
FWE*
Input
Flash program/erase protection by hardware
Mode 2
MD2
Input
Sets this LSI operating mode
Mode 1
MD1
Input
Sets this LSI operating mode
Mode 0
MD0
Input
Sets this LSI operating mode
Transmit data
TxD1
Output
Serial transmit data output
Receive data
RxD1
Input
Serial receive data input
Notes: The transmit data and receive data pins are used in boot mode.
* In the mask ROM versions, the FWE pin functions as the RESO pin.
15.2.4
Register Configuration
The registers used to control the on-chip flash memory when enabled are shown in table 15.3.
Table 15.3 Flash Memory Registers
1
Register Name
Abbreviation
R/W
Initial Value
Flash memory control register
FLMCR
R/W
H'00*
Erase block register
EBR
R/W
H'00
H'FF42
RAM control register
RAMCR
R/W
H'F1
H'FF47
Flash memory status register
FLMSR
R
H'7F
H'FF4D
2
Address*
H'FF40
Notes: 1. Lower 16 bits of the address.
2. When a high level is input to the FWE pin, the initial value is H'80.
The registers in table 15.3 are used in the flash memory versions only. Reading the corresponding
addresses in a mask ROM version will always return 1s, and writes to these addresses are disabled.
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Section 15 ROM
15.3
Register Descriptions
15.3.1
Flash Memory Control Register (FLMCR)
FLMCR is an 8-bit register used for flash memory operating mode control. Program-verify mode
or erase-verify mode is entered by setting SWE to 1 when FWE = 1. Program mode is entered by
setting SWE to 1 when FWE = 1, then setting the PSU bit, and finally setting the P bit. Erase
mode is entered by setting SWE to 1 when FWE = 1, then setting the ESU bit, and finally setting
the E bit. FLMCR is initialized by a reset, and in hardware standby mode and software standby
mode. Its initial value is H'80 when a high level is input to the FWE pin, and H'00 when a low
level is input. In mode 6 the FWE pin must be fixed low, as flash memory on-board programming
is not supported. Therefore, bits in this register cannot be set to 1 in mode 6. When on-chip flash
memory is disabled, a read will return H'00, and writes are invalid. When setting bits 6 to 0 in this
register to 1, each bit should be set individually.
Writes to the ESU, PSU, EV and PV bits in FLMCR are enabled only when FWE = 1 and SWE =
1; writes to the E bit only when FWE = 1, SWE = 1, and ESU = 1; and writes to the P bit only
when FWE = 1, SWE = 1, and PSU = 1.
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Section 15 ROM
Bit
Modes
1 to 4,
and 6
Initial value
Read/Write
Modes Initial value
5 and 7 Read/Write
7
6
5
4
3
2
1
0
FWE
SWE
ESU
PSU
EV
PV
E
P
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
1/0
R
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Program mode
Designates
transition to
or exit from
program mode
Erase mode
Designates transition
to or exit from erase
mode
Program-verify mode
Designates transition to
or exit from program-verify
mode
Erase-verify mode
Designates transition to
or exit from erase-verify
mode
Program setup
Prepares for a transition to program mode.
Erase setup
Prepares for a transition to erase mode.
Software write enable bit
Enables or disables the flash memory.
Flash write enable bit
Sets hardware protection against flash memory programming/erasing.
Bit 7—Flash Write Enable Bit (FWE): Sets hardware protection against flash memory
programming/erasing. When using this bit, refer to section 15.9, Notes on Flash Memory
Programming/Erasing.
Bit 7
FWE
Description
0
When a low level is input to the FWE pin (hardware-protected state)
1
When a high level is input to the FWE pin
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Section 15 ROM
1
2
Bit 6—Software Write Enable Bit (SWE)* * : This bit enables/disables flash memory
programming/erasing. This bit should be set before setting FLMCR bits 5 to 0, and EBR bits 7 to
0. Do not set the ESU, PSU, EV, PV, E, or P bits at the same time.
Bit 6
SWE
Description
0
Program/erase disabled
1
Program/erase enabled
(Initial value)
[Setting condition]
When FWE = 1
1
Bit 5—Erase Setup Bit (ESU)* : Prepares for a transition to erase mode. Do not set the SWE,
PSU, EV, PV, E, or P bit at the same time.
Bit 5
ESU
Description
0
Erase setup cleared
1
Erase setup
(Initial value)
[Setting condition]
When FWE = 1, and SWE = 1
1
Bit 4—Program Setup Bit (PSU)* : Prepares for a transition to program mode. Do not set the
SWE, ESU, EV, PV, E, or P bit at the same time.
Bit 4
PSU
Description
0
Program setup cleared
1
Program setup
(Initial value)
[Setting condition]
When FWE = 1, and SWE = 1
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Section 15 ROM
1
Bit 3—Erase-Verify (EV)* : Selects erase-verify mode transition or clearing. Do not set the
SWE, ESU, PSU, PV, E, or P bit at the same time.
Bit 3
EV
Description
0
Erase-verify mode cleared
1
Transition to erase-verify mode
(Initial value)
[Setting condition]
When FWE = 1, and SWE = 1
1
Bit 2—Program-Verify (PV)* : Selects program-verify mode transition or clearing. Do not set
the SWE, ESU, PSU, EV, E, or P bit at the same time.
Bit 2
PV
Description
0
Program-verify mode cleared
1
Transition to program-verify mode
(Initial value)
[Setting condition]
When FWE = 1, and SWE = 1
1
3
Bit 1—Erase (E)* * : Selects erase mode transition or clearing. Do not set the SWE, ESU, PSU,
EV, PV, or P bit at the same time.
Bit 1
E
Description
0
Erase mode cleared
1
Transition to erase mode
[Setting condition]
When FWE = 1, SWE = 1, and ESU = 1
Rev.3.00 Mar. 26, 2007 Page 446 of 682
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(Initial value)
Section 15 ROM
1
3
Bit 0—Program (P)* * : Selects program mode transition or clearing. Do not set the SWE, ESU,
PSU, EV, PV, or E bit at the same time.
Bit 0
P
Description
0
Program mode cleared
1
Transition to program mode
(Initial value)
[Setting condition]
When FWE = 1, SWE = 1, and PSU = 1
Notes: 1. Do not set two or more bits at the same time.
Do not turn off VCC when a bit is set.
2. Do not set/clear the SWE bit simultaneously with other bits (ESU, PSU, EV, PV, E, P).
3. Set the P and E bits according to the program and erase algorithms shown in section
15.5, Programming/Erasing Flash Memory.
For the usage precautions, see section 15.9, Notes on Flash Memory
Programming/Erasing.
15.3.2
Erase Block Register (EBR)
EBR is an 8-bit register that designates the flash memory block for erasure. EBR is initialized to
H'00 by a reset, in hardware standby mode, or software standby mode, when a high level is not
input to the FWE terminal, or when the FLMCR SWE bit is 0 when a high level is applied to the
FWE terminal. When a bit is set in EBR, the corresponding block can be erased. Other blocks are
erase - protected. The blocks are erased block by block. Therefore, set only one bit in EBR; do not
set bits in EBR to erase two or more blocks at the same time.
Each bit in EBR cannot be set until the SWE bit in FLMCR is set. The flash memory block
configuration is shown in table 15.4. To erase all the blocks, erase each block sequentially.
This LSI does not support the on-board programming mode in mode 6, so bits in this register
cannot be set to 1 in mode 6.
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Section 15 ROM
Bit
7
6
5
4
3
2
1
0
EB7
EB6
EB5
EB4
EB3
EB2
EB1
EB0
Modes
1 to 4,
and 6
Initial value
Read/Write
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
Modes
5 and 7
Initial value
Read/Write
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Bits 7 to 0—Block 7 to 0 (EB7 to EB0): These bits select blocks (EB7 to EB0) to be erased.
Bits 7 to 0
EB7 to EB0
Description
0
Block EB7 to EB0 is not selected.
1
Block EB7 to EB0 is selected.
(Initial value)
Note: Set each bit of EBR to H'00 except when erasing.
Table 15.4 Flash Memory Erase Blocks
Block (Size)
Address
EB0 (1 kbyte)
H'00000 to H'003FF
EB1 (1 kbyte)
H'00400 to H'007FF
EB2 (1 kbyte)
H'00800 to H'00BFF
EB3 (1 kbyte)
H'00C00 to H'00FFF
EB4 (28 kbytes)
H'01000 to H'07FFF
EB5 (32 kbytes)
H'08000 to H'0FFFF
EB6 (32 kbytes)
H'10000 to H'17FFF
EB7 (32 kbytes)
H'18000 to H'1FFFF
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Section 15 ROM
15.3.3
RAM Control Register (RAMCR)
RAMCR selects the RAM area used when emulating real-time reprogramming of the flash
memory.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
RAMS
RAM2
RAM1
—
Modes Initial value
1 to 4 Read/Write
1
—
1
—
1
—
1
—
0
R
0
R
0
R
1
—
Modes Initial value
5 to 7 Read/Write
1
—
1
—
1
—
1
—
0
R/W*
0
R/W*
0
R/W*
1
—
Reserved bit
RAM2/1
This bit is used with
bit 3 to set the RAM
area.
Reserved bits
RAM select
This bit is used with
bits 2 and 1 to set
the RAM area.
Note: * Cannot be set to 1 in mode 6.
Bits 7 to 4—Reserved: These bits cannot be modified and are always read as 1.
Bit 3—RAM Select (RAMS): Is used with bits 2 to 1 to reassign an area to RAM (see table 15.5).
The initial setting for this bit is 0 in modes 5, 6, and 7 (internal flash memory enabled) and
programming is enabled.* In modes other than 5 to 7, 0 is always read and writing is disabled.
It is initialized by a reset and in hardware standby mode. It is not initialized in software standby
mode.
When bit 3 is set, all flash-memory blocks are protected from programming and erasing.
Bits 2 to 1—RAM2 to RAM1: These bits are used with bit 3 to reassign an area to RAM (see
table 15.5). The initial setting for this bit is 0 in modes 5, 6, and 7 (internal flash memory enabled)
and programming is enabled.* In modes other than 5 to 7, 0 is always read and writing is disabled.
They are initialized by a reset and in hardware standby mode. They are not initialized in software
standby mode.
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Section 15 ROM
Bit 0—Reserved: This bit cannot be modified and is always read as 1.
Note: * Flash memory emulation by RAM is not supported for Mode 6 (single chip normal
mode), so programming is possible, but do not set 1.
When performing flash memory emulation by RAM, the RAME bit in SYSCR must be
set to 1.
Table 15.5 RAM Area Reassignment
Bit 3
Bit 2
Bit 1
RAM Area
RAMS
RAM2
RAM1
RAM
Emulation State
H'FFF800 to H'FFFBFF
0
0/1
0/1
No emulation
H'000000 to H'0003FF
1
0
0
Mapping RAM
H'000400 to H'0007FF
1
0
1
H'000800 to H'000BFF
1
1
0
H'000C00 to H'000FFF
1
1
1
ROM area
H'00000
H'003FF
H'00400
ROM block
H'007FF
EB0–EB3
H'00800
(H'00000–H'00FFF)
H'00BFF
H'00C00
H'00FFF
RAM area
H'FEF10
H'FF7FF
EB0
EB1
Mapping RAM
EB2
EB3
ROM
selection
area
RAM
selection
area
Real RAM
H'FF800
H'FFBFF
RAM overlap area
(H'FF800–H'FFBFF)
H'FFC00
H'FFF0F
Figure 15.2 Example of Overlap ROM Area and RAM Area
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Section 15 ROM
15.3.4
Flash Memory Status Register (FLMSR)
The flash memory status register (FLMSR) detects flash memory errors.
Bit
7
6
5
4
3
2
1
0
FLER
—
—
—
—
—
—
—
Initial value
0
1
1
1
1
1
1
1
Read/Write
R
—
—
—
—
—
—
—
Reserved bits
Flash memory error
Status flag indicating that
an error was detected during
programming or erasing
Bit 7—Flash Memory Error (FLER): Indicates that an error occurred while flash memory was
being programmed or erased. When bit 7 is set, flash memory is placed in an error-protect mode.
Bit 7
FLER
Description
0
Flash memory program/erase protection (error protection* ) is disabled
1
(Initial value)
[Clearing condition]
WDT reset, reset by RES pin, or hardware standby mode
1
An error has occurred during flash memory programming/erasing
1
Flash memory program/erase protection (error protection* ) is enabled
[Setting conditions]
2
1. Flash memory was read* while being programmed or erased (including vector or
instruction fetch, but not including reading of a RAM area overlapped onto flash
memory).
2. A hardware exception-handling sequence (other than a reset, invalid instruction,
trap instruction, or zero-divide exception) was executed just before programming or
3
erasing.*
3. The SLEEP instruction (including software standby mode) was executed during
programming or erasing.
Notes: 1. For details, see section 15.6.3, Error Protection.
2. The read data has undetermined values.
3. Before stack and vector read by exception handling.
Bits 6 to 0—Reserved: These bits cannot be modified and are always read as 1.
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Section 15 ROM
15.4
On-Board Programming Modes
When pins are set to on-board programming mode, program/erase/verify operations can be
performed on the on-chip flash memory. There are two on-board programming modes: boot mode
and user program mode. The pin settings for transition to each of these modes are shown in table
15.6. In mode 6 (on-chip ROM enabled) in this LSI, the boot mode and user program mode cannot
be used. For the notes on FWE pin set/reset, see section 15.9, Notes on Flash Memory
Programming/Erasing.
Table 15.6 Setting On-Board Programming Modes
Mode
Boot mode
User program mode
FWE
MD1
MD0
Notes
0
1
0: VIL
1
1
1: VIH
0*
mode 7
0*
2
mode 5
1
0
1
mode 7
1
1
1
1*
1
MD2
2
mode 5
Notes: 1. For the High level input timing, see items (6) and (7) of Notes on Using the Boot Mode.
2. In the boot mode, the MD2 setting becomes inverted input.
In the boot mode, the mode control register (MDCR) can be used to monitor the status
of modes 5 and 7 in the same way as in the normal mode.
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Section 15 ROM
On-Board Programming Modes
• Boot mode
1. Initial state
The flash memory is in the erased state when the
device is shipped. The description here applies to
the case where the old program version or data
is being rewritten. The user should prepare the
programming control program and new
application program beforehand in the host.
2. Programming control program transfer
When boot mode is entered, the boot program in
this chip (originally incorporated in the chip) is
started, an SCI communication check is carried
out, and the boot program required for flash
memory erasing is automatically transferred to
the RAM boot program area.
Host
Host
Programming control
program
Programming control
program
New application
program
New application
program
This chip
This chip
SCI
Boot program
Flash memory
RAM
SCI
Boot program
Flash memory
RAM
Boot program area
Application program
(old version)
Application program
(old version)
3. Flash memory initialization
The erase program in the boot program area (in
RAM) is executed, and the flash memory is
initialized (to H'FF). In boot mode, entire flash
memory erasure is performed, without regard to
blocks.
4. Writing new application program
The programming control program transferred
from the host to RAM by SCI communication is
executed, and the new application program in the
host is written into the flash memory.
Host
Host
Programming control
program
New application
program
This chip
This chip
SCI
Boot program
Flash memory
RAM
Flash memory
RAM
Programming
control program
Boot program area
Flash memory
erase
SCI
Boot program
New application
program
Program execution state
Figure 15.3 Boot Mode
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Section 15 ROM
• User program mode
1. Initial state
(1) The program that will transfer the
programming/ erase control program to on-chip
RAM should be written into the flash memory by
the user beforehand. (2) The programming/erase
control program should be prepared in the host
or in the flash memory.
2. Programming/erase control program transfer
When the FWE pin is driven high, user software
confirms this fact, executes the transfer program
in the flash memory, and transfers the
programming/erase control program to RAM.
Host
Host
Programming/
erase control program
New application
program
New application
program
This chip
This chip
SCI
Boot program
Flash memory
RAM
SCI
Boot program
Flash memory
RAM
Transfer
program
Transfer
program
Programming/
erase control program
Application program
(old version)
Application program
(old version)
3. Flash memory initialization
The programming/erase program in RAM is
executed, and the flash memory is initialized (to
H'FF). Erasing can be performed in block units,
but not in byte units.
4. Writing new application program
Next, the new application program in the host is
written into the erased flash memory blocks. Do
not write to unerased blocks.
Host
Host
New application
program
This chip
This chip
SCI
Boot program
Flash memory
RAM
FWE assessment
program
SCI
Boot program
Flash memory
RAM
FWE assessment
program
Transfer program
Transfer program
Programming/
erase control program
Flash memory
erase
Programming/
erase control program
New application
program
Program execution state
Figure 15.4 User Program Mode (Example)
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Section 15 ROM
15.4.1
Boot Mode
When boot mode is used, the flash memory programming control program must be prepared in the
host beforehand. The channel 1 SCI to be used is set to asynchronous mode.
In reset start, after setting this LSI pin to the boot mode, start the microcomputer boot program,
measure the Low period of the data sent from the host, and select the bit rate register (BRR) value
beforehand. Then enable reception of the user program from the outside using the serial
communication interface (SCI) on this LSI, and write the received user program to on-chip RAM.
After the program has been stored the end of writing, execution branches to the top address
(H'FF300) of the on-chip RAM, execute the program written on the on-chip RAM, and enable
flash memory program/erase.
The system configuration in boot mode is shown in figure 15.5, and the boot program mode
execution procedure in figure 15.6.
This LSI
Flash memory
Host
Write data reception
Verify data transmission
RXD1
SCI1
TXD1
On-chip RAM
Figure 15.5 System Configuration in Boot Mode
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Section 15 ROM
Start
1
Set pins to boot program mode
and execute reset-start
1
Set this LSI to the boot mode and reset starts the LSI.
2
Host transfers data (H'00)
continuously at prescribed bit rate
2
Set the host to the prescribed bit rate (4800, 9600)
and consecutively send H'00 data in 8-bit data,
1 stop bit format.
3
This LSI repeatedly measures the RXD1 pin Low
period and calculates the asynchronous
communication bit rate at which the host
performs transfer.
4
At the end of SCI bit rate adjustment, this LSI sends
one byte of H'00 data to signal the end of adjustment.
5
Check if the host normally received the one byte bit
rate adjustment end signal sent from this LSI and
sent one byte of H'55 data.
6
After H'55 is sent, the host receives H'AA and sends
the byte count of the user program that is
transferred to this LSI.
Send the 2-byte count in upper byte and lower byte
order. Then sequentially send the program set by
the user.
This LSI sequentially sends (echo back) each byte of
the received byte count and user program to the host
as verification data.
7
This LSI sequentially writes the received user
program to the on-chip RAM area (H'FF300–H'FFEFF).
8
Before executing the transferred user program, this LSI
checks if data was written to flash memory after
control branched to the RAM boot program area
(H'FEF10–H'FF2FF). If data was already written to
flash memory, all the blocks are erased.
9
After sending H'AA, this LSI branches to the on-chip
RAM area (H'FF300) and executes the user program
written to that area.
This LSI measures low period
of H'00 data transmitted by host
3
This LSI calculates bit rate
and sets value in bit rate register
4
After bit rate adjustment, this LSI
transmits one byte of H'00 data to
host to indicate end of adjustment
5
Host confirms normal reception
of bit rate adjustment end
indication (H'00), and transmits
one byte of H'55 data
6
After receiving H'55, this LSI
sends H'AA and receives two bytes
of the byte count (N) of the program
transferred to the on-chip RAM.*1
This LSI transfers the user
program to RAM.*2
7
This LSI calculates the remaining
number of bytes to be sent (N = N − 1).
Transfer
end byte count
N = 0?
No
Yes
After branching to the
RAM boot program area
(H'FEF10 to H'FF2FF),
this LSI checks the data in
the flashmemory user area.
8
All data = H'FF?
Yes
9
No
Erase all blocks of flash
memory.*3
After sending H'AA, this LSI
branches to the RAM area
(H'FF300) and executes the user
program transferred to the RAM.
Notes: 1. The RAM area that can be used by the user is
3.0 kbytes. Set the transfer byte count to within
3.0 kbytes. Always send the 2-byte transfer byte
count in upper byte and lower byte order.
Transfer byte count example: For 256 bytes (H'0100),
upper byte H'01, lower byte H'00.
2. Set the part that controls the user program flash
memory at the program according to the flash
memory programming/erase algorithms described later.
3. When a memory cell malfunctions and cannot be
erased, this LSI sends one H'FF byte as an erase
error and stops the erase operation and subsequent
operations.
Figure 15.6 Boot Mode Execution Procedure
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Section 15 ROM
Automatic SCI Bit Rate Adjustment
Start
bit
D0
D1
D2
D3
D4
D5
D6
Low period (9 bits) measured (H'00 data)
D7
Stop
bit
High period
(1 or more bits)
Figure 15.7 Measuring the Low Period of the Communication Data from the Host
When boot mode is initiated, this LSI measures the low period of the asynchronous SCI
communication data (H'00) transmitted continuously from the host (figure 15.7). The SCI
transmit/receive format should be set as follows: 8-bit data, 1 stop bit, no parity. This LSI
calculates the bit rate of the transmission from the host from the measured low period, and
transmits one H'00 byte to the host to indicate the end of bit rate adjustment. The host should
confirm that this adjustment end indication (H'00) has been received normally, and transmit one
H'55 byte to the LSI. If reception cannot be performed normally, initiate boot mode again (reset),
and repeat the above operations. Depending on the host's transmission bit rate and the system
clock frequency of this LSI, there will be a discrepancy between the bit rates of the host and the
LSI. To ensure correct SCI operation, the host's transfer bit rate should be set to 4800 and 9600
1
bps* .
Table 15.7 shows typical host transfer bit rates and system clock frequencies for which automatic
adjustment of this LSI bit rate is possible. The boot program should be executed within this system
2
clock range* .
Table 15.7 System Clock Frequencies for which Automatic Adjustment of This LSI Bit
Rate Is Possible
Host Bit Rate (bps)
System Clock Frequency for which Automatic Adjustment
of This LSI Bit Rate Is Possible (MHz)
9600
8 to 18
4800
4 to 18
Notes: 1. The host bit rate settings are 4800 and 9600bps only. Do not use any other setting.
2. This LSI may automatically adjusts the bit rate except for bit rate and system clock
combinations as shown in table 15.7. However, the bit rate of the host and this LSI will
be different and subsequent transfers will not be carried out normally. Therefore,
always execute the boot mode within the range of the bit rate and system clock
combinations shown in table 15.7.
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Section 15 ROM
On-Chip RAM Area Divisions in Boot Mode
In boot mode, the RAM area is divided into an area used by the boot program and an area to which
the user program is transferred via the SCI, as shown in figure 15.8. The boot program area can be
used when a transition is made to the execution state for the user program transferred to RAM.
H'FEF10
Boot program
area
(Approximately 1kbyte)
H'FF300
User program
transfer area
(Approximately
3.0 kbytes)
H'FFF0F
Notes: 1. The boot program area cannot be used until a transition is made to the execution
state for the user program transferred to RAM. Note also that the boot program
remains in this RAM area even after control branches to the user program.
2. When flash memory emulation is performed using RAM, part of the user program
transfer area (H'FF800 to H'FFBFF) is used as an area for carrying out emulation,
and therefore user program transfer must not be performed to this area.
Figure 15.8 RAM Areas in Boot Mode
Notes on using the boot mode
(1) When this LSI comes out of reset in boot mode, it measures the low period the input at the
SCI's RXD1 pin. The reset should end with RXD1 high. After the reset ends, it takes about 100
states for this LSI to get ready to measure the low period of the RXD1 input.
(2) If any data has been written to the flash memory (if all data is not H'FF), all flash memory
blocks are erased when this mode is executed. Therefore, boot mode should be used for initial
on-board programming, or for forced recovery if the program to be activated in user program
mode is accidentally erased and user program mode cannot be executed, for example.
(3) Interrupts cannot be used during programming or erasing of flash memory.
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Section 15 ROM
(4) The RXD1 and TXD1 pins should be pulled up on the board.
(5) This LSI terminates transmit and receive operations by the on-chip SCI(channel 1) (by clearing
the RE and TE bits in serial control register (SCR)) before branching to the user program.
However, the adjusted bit rate is held in the bit rate register (BRR). At this time, the TXD1 pin
is in the high level output state (P9DDR P91DDR=1, P9DR P91DR=1).
Before branching to the user program the value of the general registers in the CPU are also
undefined. Therefore, the general registers must be initialized immediately after control
branches to the user program. Since the stack pointer (SP) is implicitly used during subroutine
call, etc., a stack area must be specified for use by the user program.
There are no other internal I/O registers in which the initial value is changed.
(6) Transition to the boot mode executes a reset-start of this LSI after setting the MD0 to MD2 and
FWE pins according to the mode setting conditions shown in table 15.6.
At this time, this LSI latches the status of the mode pin inside the microcomputer to maintain
1
the boot mode status at the reset clear (startup with Low → High) timing* .
To clear boot mode, it is necessary to drive the FWE pin low during the reset, and then execute
1
reset release* . The following points must be noted:
(a) Before making a transition from the boot mode to the regular mode, the microcomputer
boot mode must be reset by reset input via the RES pin. At this time, the RES pin must be
3
hold at low level for at least 20 system clock.*
(b) Do not change the input levels at the mode pins (MD2 to MD0) or the FWE pin while in
boot mode. When making a mode transition, first enter the reset state by inputting a low
level to the RES pin. When a watchdog timer reset was generated in the boot mode, the
microcomputer mode is not reset and the on-chip boot program is restarted regardless of
the state of the mode pin.
(c) Do not input low level to the FWE pin while the boot program is executing and when
2
programming/erasing flash memory.*
(7) If the mode pin and FWE pin input levels are changed from 0 V to VCC or from VCC to 0V
during a reset (while a low level is being input to the RES pin), the microcomputer's operating
mode will change.
Therefore, since the state of the address dual port and bus control output signals (AS, RD, WR)
changes, use of these pins as output signals during reset must be disabled outside the
microcomputer.
Notes: 1. The mode pin and FWE pin input must satisfy the mode programming setup time (tMDS)
relative to the reset clear timing.
2. For notes on FWE pin High/Low, see section 15.9, Notes on Flash Memory
Programming/Erasing.
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Section 15 ROM
3. See section 4.2.2, Reset Sequence and 15.9, Notes on Flash Memory
Programming/Erasing. With the mask ROM version of the H8/3039, H8/3038,
H8/3037, and H8/3036, the minimum reset period during operation is 10 system
clocks. However, the flash memory versions of the H8/3039 requires a minimum of 20
system clocks.
15.4.2
User Program Mode
When set to the user program mode, this LSI can erase and program its flash memory by executing
a user program. Therefore, on-chip flash memory on-board programming can be performed by
providing a means of controlling FWE and supplying the write data on the board and providing a
write program in a part of the program area.
To select this mode, set the LSI to on-chip ROM enable modes 5 and 7 and apply a high level to
the FWE pin. In this mode, the peripheral functions, other than flash memory, are performed the
same as in modes 5 and 7.
Since the flash memory cannot be read while it is being programmed/erased, place a programming
program on external memory, or transfer the programming program to RAM area, and execute it
in the RAM. In mode 6, do not program/erase the flash memory. When setting mode 6, always
input low level to the FWE pin.
Figure 15.9 shows the procedure for executing when transferred to on-chip RAM. During reset
start, starting from the user program mode is possible.
Rev.3.00 Mar. 26, 2007 Page 460 of 682
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Section 15 ROM
1
2
3
MD2 − MD0 = 101, 111
1
Sets the mode pin to an on-chip ROM enable mode
(mode 5 or 7).
2
Starts the CPU via reset.
(The CPU can also be started from the user program
mode by setting the FWE pin to High level during reset;
that is, during the period the RES pin is a low level.)
3
Transfers the on-board programming program to RAM.
4
Branches to the program in RAM.
5
Sets the FWE pin to a high level.*
(Switches to user program mode.)
6
After confirming that the FWE pin is a high level, executes
the on-board programming program in RAM. This
reprograms the user application program in flash memory.
7
At the end of reprograming, clears the SWE bit, and exits
the user program mode by switching the FWE pin from
a high level to a low level.*
8
Branches to, and executes, the user application program
reprogrammed in flash memory.
Reset start
Transfer on-board programming
program to RAM.
4
Branch to program in RAM.
5
FWE = high
(user program mode)
6
<Procedure>
The user writes a program that executes steps 3 to 8 in advance
as shown below .
Execute on-board programming
program in RAM
(flash memory reprogramming).
7
Input low level to FWE after SWE
bit clear (user program mode exit)
8
Execute user application
program in flash memory.
Note: * For notes on FWE pin High/Low, see section 15.9, Notes
on Flash Memory Programming/Erasing.
Figure 15.9 User Program Mode Execution Procedure (Example)
Note: Normally do not apply a high level to the FWE pin. To prevent erroneous programming or
erasing in the event of program runaway, etc., apply a high level to the FWE pin only
when programming/erasing flash memory (including flash memory emulation by RAM).
If program runaway, etc. causes overprogramming or overerasing of flash memory, the
memory cells will not operate normally.
Also, while a high level is applied to the FWE pin, the watchdog timer should be activated
to prevent overprogramming or overerasing due to program runaway, etc.
In mode 6, do not reprogram flash memory. When setting mode 6, always set the FWE pin
to a low level.
Rev.3.00 Mar. 26, 2007 Page 461 of 682
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Section 15 ROM
15.5
Programming/Erasing Flash Memory
A software method, using the CPU, is employed to program and erase flash memory in the onboard programming modes. There are four flash memory operating modes: program mode, erase
mode, program-verify mode, and erase-verify mode. Transitions to these modes can be made by
setting the PSU, ESU, P, E, PV, and EV bits in FLMCR.
For a description of state transition by FLMCR bit setting, see figure 15.10.
The flash memory cannot be read while being programmed or erased. Therefore, the program that
controls flash memory programming/erasing (the programming control program) should be
located and executed in on-chip RAM or external memory.
For the programming/erasing notes, see section 15.9, Notes on Flash Memory
Programming/Erasing. For the wait time after each bit in FLMCR is set or cleared, see section
18.2.5, Flash Memory Characteristics.
Notes: 1. Operation is not guaranteed if setting/resetting of the SWE, ESU, PSU, EV, PV, E, and
P bits in FLMCR is executed by a program in flash memory.
2. When programming or erasing, set the FWE pin input level to the high level, and set
FWE to 1. (programming/erasing will not be executed if FWE = 0).
Rev.3.00 Mar. 26, 2007 Page 462 of 682
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Section 15 ROM
*2
E=1
Erase setup state
=
1
Erase mode
E=0
FWE = 1
FWE = 0
ES
U
=
0
ES
U
Normal mode
*1
On-board
SWE = 1
Software
programming mode
reprogramming
software reprogramming
disable state
SWE = 0 enable state
EV
EV
PSU
: Normal mode
=
*3
P=1
Program setup state
=0
PV
PV
=0
=1
PSU
Notes:
Erase-verify mode
=1
0
=
Programming mode
P=0
1
Program-verify mode
: On-board programming mode
1. Do not make a state transition by setting or clearing two or more bits at the same time.
2. After transition from the erase mode to the erase setup state, do not make a transition to the erase mode
without going through the software reprogramming enable state.
3. After transition from the programming mode to the program setup state, do not switch to the programming
mode without going through the software reprogramming enable state.
Figure 15.10 State Transition by Setting of Each Bit of FLMCR
15.5.1
Program Mode
Follow the procedure shown in the program/program-verify flowchart in figure 15.11 to write data
or programs to flash memory. Performing program operations according to this flowchart will
enable data or programs to be written to flash memory without subjecting the device to voltage
stress or sacrificing program data reliability. Programming should be carried out 32 bytes at a
time.
For the wait time (x, y, z, α, β, γ, ε, η) after setting or clearing each bit in the flash memory
control register (FLMCR) and the maximum programming count (N), see table 18.15.
Following the elapse of (x) µs or more after the SWE bit is set to 1 in flash memory control
register (FLMCR), 32-byte program data is stored in the program data area and reprogram data
area, and the 32-byte data in the reprogram data area written consecutively to the write addresses.
(The lower 8 bits of the first address written to must be H'00, H'20, H'40, H'60, H'80, H'A0, H'C0,
or H'E0.) 32 consecutive byte data transfers are performed. The program address and program data
are latched in the flash memory. A 32-byte data transfer must be performed even if writing fewer
than 32 bytes; in this case, H'FF data must be written to the extra addresses.
Rev.3.00 Mar. 26, 2007 Page 463 of 682
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Section 15 ROM
Next, the watchdog timer (WDT) is set to prevent overprogramming due to program runaway, etc.
Set a value greater than (y + z + α + ß) µs as the WDT overflow period. Preparation for entering
program mode (program setup) is performed next by setting the PSU bit in FLMCR. The
operating mode is then switched to program mode by setting the P bit in FLMCR after the elapse
of at least (y) µs.
The time while the P bit is set is the flash memory programming time. Make a program setting so
that the time for one programming operation is within the range of (z) µs.
The wait time after P bit setting must be changed according to the number of reprogramming
loops. For details, see section 18.2.5, Flash Memory Characteristics.
15.5.2
Program-Verify Mode
In program-verify mode, the data written in program mode is read to check whether it has been
correctly written in the flash memory.
Clear the P bit in FLMCR, then wait for at least (α) µs before clearing the PSU bit to exit program
mode. After exiting program mode, the watchdog timer setting is also cleared. Then the operating
mode is switched to program-verify mode by setting the PV bit in FLMCR. Before reading in
program-verify mode, a dummy write of H'FF data should be made to the addresses to be read.
The dummy write should be executed after the elapse of (γ) µs or more. When the flash memory is
read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at
least (ε) µs after the dummy write before performing this read operation. Next, the originally
written data is compared with the verify data, and reprogram data is computed (see figure 15.11)
and transferred to RAM. After verification of 32 bytes of data has been completed, exit programverify mode, wait for at least (η) µs, then determine whether 32-byte programming has finished. If
reprogramming is necessary, set program mode again, and repeat the program/program-verify
sequence as before. However, ensure that the program/program-verify sequence is not repeated
more than (N) times on the same bits.
Note: A 32-byte area to store program data and a 32-byte area to store reprogram data are
required in RAM.
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Section 15 ROM
Start
*1
Set SWE bit in FLMCR
Wait (x) µs
*6
Store 32-byte write data in write data area
and reprogram data area
Programming operation counter n ← 1
Consecutively write 32-byte data in
reprogram data area in RAM to flash memory
Notes: 1. Programming should be performed in the erased state.
(Perform 32-byte programming on memory after all 32 bytes
have been erased.)
2. Data transfer is performed by byte transfer (word transfer is not
possible), with the write start address at a 32-byte boundary.
The lower 8 bits of the first address written to must be H'00,
H'20, H'40, H'60, H'80, H'A0, H'C0, or H'E0. A 32-byte data
transfer must be performed even if writing fewer than 32 bytes;
in this case, H'FF data must be written to the extra addresses.
3. Verify data is read in 16-bit (word) units. (Byte-unit reading is
also possible.)
4. Reprogram data is determined by the computation shown in the
table below (comparison of data stored in the program data
area with verify data). Programming of reprogram data 0 bits is
executed in the next programming loop. Therefore, even bits for
which programming has been completed will be programmed
again if the result of the subsequent verify operation is NG.
5. An area for storing write data (32 bytes) and an area for storing
reprogram data (32 bytes) must be provided in RAM. The
contents of the latter are rewritten in accordance with the
reprogramming data computation.
6. The values of x, y, z, α, β, γ, ε, η, and N are shown in section
18.2.5, Flash Memory Characteristics.
7. The value of z depends on the number of reprogramming loops
(n). Details are given in section 18.2.5, Flash Memory
Characteristics.
*2
Enable WDT
Set PSU bit in FLMCR
Wait (y) µs
*6
Set P bit in FLMCR
Wait (z) µs
Start of programming
*6 *7
Clear P bit in FLMCR
Wait (α) µs
End of programming
*6
Clear PSU bit in FLMCR
Wait (β) µs
*6
Disable WDT
Set PV bit in FLMCR
Wait (γ) µs
*6
Set verify start address
Programming end flag ← 0
H'FF dummy write to verify address
Wait (ε) µs
*6
Read verify data
*3
Programming OK?
NG
OK
Programming end
flag ← 1 (unfinished)
Reprogram data computation
*4
Transfer computation result to reprogram
data area
*5
Write
Data
Verify
Data
Reprogram
Data
Comments
0
0
1
Programming completed
0
1
0
Programming incomplete; reprogram
1
0
1
—
1
1
1
Still in erased state; no action
RAM
Increment verify address
Program data storage
area (32 bytes)
No
32-byte
data verification completed?
Yes
Clear PV bit in FLMCR
Wait (η) µs
Reprogram data storage
area (32 bytes)
*6
Reprogram
Programming end flag = 0?
No
n←n+1
*6
Yes
n > N?
No
Yes
Clear SWE bit in FLMCR
Clear SWE bit in FLMCR
End of programming
Programming failure
Figure 15.11 Program/Program-Verify Flowchart
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Section 15 ROM
15.5.3
Erase Mode
Flash memory erasing should be performed block by block following the procedure shown in the
erase/erase-verify flowchart (single-block erase) shown in figure 15.12.
For the wait time (x, y, z, α, β, γ, ε, η) after setting or clearing of each bit in the flash memory
control register (FLMCR) and the maximum erase count (N), see table 18.15.
To erase the contents of flash memory, make a 1 bit setting for the flash memory area to be erased
in erase block register (EBR) at least (x) µs after setting the SWE bit to 1 in FLMCR. Next, the
watchdog timer (WDT) is set to prevent overerasing due to program runaway, etc. Set a value
greater than (z) ms + (y + α + ß) µs as the WDT overflow period. Preparation for entering erase
mode (erase setup) is performed next by setting the ESU bit in FLMCR. The operating mode is
then switched to erase mode by setting the E bit in FLMCR after the elapse of at least (y) µs.
The time during which the E bit is set is the flash memory erase time. Ensure that the erase time
does not exceed (z) ms.
Note: With flash memory erasing, preprogramming (setting all data in the memory to be erased
to "0") is not necessary before starting the erase procedure.
15.5.4
Erase-Verify Mode
In erase-verify mode, data is read after memory has been erased to check whether it has been
correctly erased.
After the elapse of the fixed erase time, clear the E bit in FLMCR, then wait for at least (α) µs
before clearing the ESU bit to exit erase mode. After exiting erase mode, the watchdog timer
setting is also cleared. The operating mode is then switched to erase-verify mode by setting the EV
bit in FLMCR. Before reading in erase-verify mode, a dummy write of H'FF data should be made
to the addresses to be read. The dummy write should be executed after the elapse of (γ) µs or more.
When the flash memory is read in this state (verify data is read in 16-bit units), the data at the
latched address is read. Wait at least (ε) µs after the dummy write before performing this read
operation. If the read data has been erased (all "1"), a dummy write is performed to the next
address, and erase-verify is performed. If the read data is unerased, set erase mode again, and
repeat the erase/erase-verify sequence as before. However, do not repeat the erase/erase-verify
sequence more than (N) times.
Rev.3.00 Mar. 26, 2007 Page 466 of 682
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Section 15 ROM
Start
*1
Set SWE bit in FLMCR
Wait (x) µs
*2
Erase counter n ← 1
*4
*5
Set EBR
Enable WDT
Set ESU bit in FLMCR
Wait (y) µs
*2
Set E bit in FLMCR
Wait (z) ms
Start of erase
*2
Clear E bit in FLMCR
Wait (α) µs
End of erase
*2
Clear ESU bit in FLMCR
Wait (β) µs
*2
Disable WDT
Set EV bit in FLMCR
Wait (γ) µs
*2
Set block start address
to verify address
Increment
verify address
H'FF dummy write to verify address
Wait (ε) µs
*2
Read verify data
*3
Verify data = H'FFFF?
No
YES
No
Last address of block?
Yes
Clear EV bit in FLMCR
Wait (η) µs
Re-erase
n←n+1
*2
*2
Clear EV bit in FLMCR
Wait (η) µs
*2
No
n > N?
Yes
Notes: 1.
2.
3.
4.
5.
Clear SWE bit in FLMCR
Clear SWE bit in FLMCR
End of erasing
Erase failure
Preprogramming (setting erase block data to all 0s) is not necessary.
The values of x, y, z, α, β, γ, ε, η, and N are shown in section 18.2.5, Flash Memory Characteristics.
Verify data is read in 16-bit (word) units. (Byte-unit reading is also possible.)
Set only one bit in EBR two or more bits must not be set simultaneously.
Erasing is performed in block units. To erase multiple blocks, each block must be erased in turn.
Figure 15.12 Erase/Erase-Verify Flowchart (Single-Block Erasing)
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Section 15 ROM
15.6
Flash Memory Protection
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
15.6.1
Hardware Protection
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted. Hardware protection is reset by settings in the flash memory control register
(FLMCR) and erase block register (EBR). In the case of error protection, the P bit and E bit can be
set, but a transition is not made to program mode or erase mode. (See table 15.8.)
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REJ09B0353-0300
Section 15 ROM
Table 15.8 Hardware Protection
Function
Item
Description
Program Erase
FWE pin
protection
•
When a low level is input to the FWE
pin, FLMCR and EBR are initialized,
and the program/erase-protected state
4
is entered.*
No*
Reset/standby
protection
•
In a reset (including a WDT overflow
reset) and in standby mode, FLMCR
and EBR are initialized, and the
program/erase-protected state is
entered.
•
In a reset via the RES pin, the reset
state is not entered unless the RES pin
is held low until oscillation stabilizes
after powering on (The minimum
oscillation stabilization time is 20ms).
In the case of a reset during operation,
hold the RES pin low for at least 20
5
system clock cycles.*
•
When a microcomputer operation error
(error generation (FLER=1)) was
detected while flash memory was being
programmed/erased, error protection is
enabled. At this time, the FLMCR and
EBR settings are held, but
programming/erasing is aborted at the
time the error was generated. Error
protection is released only by a reset
via the RES pin or a WDT reset, or in
the hardware standby mode.
Error protection
Notes: 1.
2.
3.
4.
5.
2
Verify*
No*
3
No
No
No*
3
No
No
No*
3
Yes
1
Two modes: program-verify and erase-verify.
The RAM area that overlapped flash memory is deleted.
All blocks become unerasable and specification by block is impossible.
For more information, see section 15.9, Notes on Flash Memory Programming/Erasing.
See sections 4.2.2, Reset Sequence and 15.9, Notes on Flash Memory
Programming/Erasing. This LSI requires a minimum reset time during operation of 20
system clocks.
Rev.3.00 Mar. 26, 2007 Page 469 of 682
REJ09B0353-0300
Section 15 ROM
15.6.2
Software Protection
Software protection can be implemented by setting the RAMS bit in RAM control register
(RAMCR) and erase block register (EBR). When software protection is in effect, setting the P or E
bit in flash memory control register (FLMCR) does not cause a transition to program mode or
erase mode. (See table 15.9.)
Table 15.9 Software Protection
Function
Item
Description
Program Erase
Emulation
2
protection*
Setting the RAMS bit in RAMCR sets the
program/erase-protected state for all
blocks.
No*
Block
specification
protection
Erase protection can be set for individual
blocks by settings in erase block register
4
(EBR).*
—
2
No*
3
No
However, program protection is disabled.
Setting EBR to H'00 places all blocks in the
erase-protected state.
Notes: 1.
2.
3.
4.
Two modes: program-verify mode and erase-verify mode.
Programming to the RAM area that overlaps flash memory is possible.
All blocks become unerasable, and specification by block is impossible.
Set H'00 in the EBR bits, except for erase.
Rev.3.00 Mar. 26, 2007 Page 470 of 682
REJ09B0353-0300
Verify*
Yes
Yes
1
Section 15 ROM
15.6.3
Error Protection
In error protection, an error is detected when this LSI runaway occurs during flash memory
programming/erasing*1, or operation is not performed in accordance with the program/erase
algorithm, and the program/erase operation is aborted. Aborting the program/erase operation
prevents damage to the flash memory due to overprogramming or overerasing.
If the LSI malfunctions during flash memory programming/erasing, the FLER bit*2 is set to 1 in
flash memory status register (FLMSR) and the error protection state is entered. The FLMCR and
EBR settings*3 are retained, but program mode or erase mode is aborted at the point at which the
error occurred. When 1 is set in the FLER bit, transition to the program mode or erase mode
cannot be made even by setting the P and E bits in FLMCR. However, PV and EV bit in FLMCR
setting is enabled, and a transition can be made to verify mode.
Error protection is released only by a reset via the RES pin or a WDT reset, or in the hardware
standby mode.
Figure 15.13 shows the flash memory state transition diagram.
Notes: 1. This is the state in which the P or E bit in FLMCR is set to 1. In this state, NMI input is
disabled. For more information, see section 15.6.4, NMI Input Disable Conditions.
2. For a detailed description of the FLER bits setting conditions, see section 15.3.4, Flash
Memory Status Register (FLMSR).
3. Data can be written to FLMCR and EBR. However, when transition to the software
standby mode was made in the error protection state, the registers are initialized.
Rev.3.00 Mar. 26, 2007 Page 471 of 682
REJ09B0353-0300
Section 15 ROM
Re
set
or , hard
sof
Re
twa ware
set
s
re
sta tand
r
RD VF PR ER FLER = 0
mo elea
nd by
de
se,
by
m
mo ode
sta relea hard
P=1 or E=1
d
e ,
nd
s
by e, a ware
mo nd
s
P = 0 and E = 0
t
de sof and
rel twa by
ea
se re
Reset or standby mode
Program mode
(hardware protection)
Erase mode
Reset or hardware standby mode
Memory read verify mode
RD VF PR ER FLER = 0
Er
are
rdw
a
h
e
or od
et y m
s
Re andb
st
ro
(so
ro
ftw
cc
ur
e s renc
tan e
db
ym
ar
Error occurrence
od
e)
Error protection mode
RD VF PR ER FLER = 1
Legend:
RD: Memory read enable
VF: Verify-read enable
PR: Programming enable
ER: Erasing enable
Software
standby mode
Software standby
mode release
RD VF PR ER INIT FLER = 0
Reset or hardware
standby mode
Error protection mode
(software standby mode)
RD VF PR ER INIT FLER = 1
RD: Memory read disabled
VF: Verify-read disabled
PR: Programming disabled
ER: Erasing disabled
INIT: Registers (FLMCR, EBR) initialize state
Figure 15.13 Flash Memory State Transitions
(When High Level Apply to FWE Pin in Modes 5 and 7 (On-Chip ROM Enabled))
The error protection function is disabled for errors other than the FLER bit set conditions. If
considerable time elapses up to transit to this protection state, the flash memory may already be
damaged. As a result, this function cannot completely protect the flash memory against damage.
Therefore, to prevent such erroneous operation, operation must be carried out correctly in
according with the program/erase algorithms in the state that flash write enable (FWE) is set. In
addition, the operation must be always carried out correctly by supervising microcomputer errors
inside and outside the chip with the watchdog timer, etc. At transition to this protection mode, the
flash memory may be erroneously programmed or erased, or its abort may result in incomplete
Rev.3.00 Mar. 26, 2007 Page 472 of 682
REJ09B0353-0300
Section 15 ROM
programming and erasing. In such cases, always forcibly return (reprogram) by boot mode.
However, overprogramming and overerasing may prevent the boot mode from starting normally.
15.6.4
NMI Input Disable Conditions
While flash memory is being programmed/erased and the boot program is executing in the boot
1
mode (however, period up to branching to on-chip RAM area)* , NMI input is disabled because
the programming/erasing operations have priority.
This is done to avoid the following operation states:
1. Generation of an NMI input during programming/erasing violates the program/erase
algorithms and normal operation can not longer be assured.
2
2. Vector-read cannot be carried out normally* during NMI exception handling during
programming/erasing and the microcomputer runs away as a result.
3. If an NMI input is generated during boot program execution, the normal boot mode sequence
cannot be executed.
Therefore, this LSI has conditions that exceptionally disable NMI inputs only in the on-board
programming mode. However, this does not assure normal programming/erasing and
microcomputer operation.
Thus, in the FWE application state, all requests, including NMI, inside and outside the
microcomputer, exception handling, and bus release must be restricted. NMI inputs are also
disabled in the error protection state and the state that holds the P or E bit in FLMCR during flash
memory emulation by RAM.
Notes: 1. Indicates the period up to branching to the on-chip RAM boot program area (H'FEF10
to H'FF2FF). (This branch occurs immediately after user program transfer was
completed.)
Therefore, after branching to RAM area, NMI input is enabled in states other than the
program/erase state. Thus, interrupt requests inside and outside the microcomputer
must be disabled until initial writing by user program (writing of vector table and NMI
processing program, etc.) is completed.
2. In this case, vector read is not performed normally for the following two reasons:
a. The correct value cannot be read even by reading the flash memory during
programming/erasing. (Value is undefined.)
b. If a value has not yet been written to the NMI vector table, NMI exception handling
will not be performed correctly.
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Section 15 ROM
15.7
Flash Memory Emulation by RAM
Erasing and programming the flash memory takes time, which can make it difficult to tune
parameters and other data in real time. In this case, overlapping part (H'FF800 to H'FFBFF) of
RAM onto a small block area of flash memory can be performed to emulate real-time
reprogramming of flash memory. This RAM reassignment is performed using bits 3 to 1 in the
RAM control register (RAMCR).
After the RAM area change, two areas can be accessed: the overlapped flash memory area and the
original RAM area (H'FF800 to H'FFBFF). For a description of the RAMCR and RAM area
setting procedure, see section 15.3.3, RAM Control Register (RAMCR).
Example of real-time emulation of flash memory
An example of RAM area H'FF800 to H'FFBFF overlapping EB2 (H'00800 to H'00BFF) flash
memory area is shown below.
Procedure:
H'00000
1. Part (H'FF800 to H'FFBFF) of RAM
overlaps the area (EB2) needed to carry out
real-time reprogramming.
(Bits 3 to 1 in the RAMCR are set to 1, 1, 0
and the overlap flash memory area (EB2)
is selected.)
Block area
Flash memory
space
Overlapping RAM
EB2 H'00800
area H'00BFF
H'00FFF
*
(Image RAM area)
H'FEF10
3. After the reprogramming data is verified, RAM
overlapping is released. (RAMS bits are cleared.)
4. The data written to H'FF800 to H'FFBFF in RAM
are written to flash memory space.
On-chip
RAM area
H'FF800
H'FFBFF
H'FFC00
H'FFF0F
2. Real-time reprogramming is carried out using
the overlapping RAM.
Note: * When part (H'FF800 to H'FFBFF) of RAM
overlapped a small block area of flash
memory, the overlapped flash memory
area cannot be accessed. This area can
be accessed by releasing overlapping.
(Real RAM area)
Figure 15.14 Example of RAM Overlapping Operation
Rev.3.00 Mar. 26, 2007 Page 474 of 682
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Section 15 ROM
Notes on use of the RAM emulation function
(1) Notes on flash write enable (FWE) high/low
Care is necessary to prevent erroneous programming/erasing at FWE = high/low, the same as
in the on-board programming mode. To prevent erroneous programming and erasing due to
program runaway, etc., during FWE application, in particular, the watchdog timer should be
set when the P, or E bit is set to 1 in FLMCR, even while the emulation function is being used.
For more information, see section 15.9, Notes on Flash Memory Programming/Erasing.
(2) NMI input disable conditions
When the P and E bits in FLMCR are set, NMI input is disabled, the same as normal
program/erase even when using the emulation function.
NMI input is cleared when the P and E bits are reset (including watchdog timer reset), in the
standby mode, when a high level is not applied to FWE, and when the SWE bit in FLMCR is 0
in state in which a high level is input to FWE.
15.8
Flash Memory PROM Mode
15.8.1
PROM Mode Setting
This LSI has a PROM mode, besides an on-board programming mode, as a flash memory
program/erase mode. In the PROM mode, a program can be freely written to the on-chip ROM
using a PROM programmer that supports the Renesas Technology 128 kbytes flash memory onchip microcomputer device type.
For notes on PROM mode use, see sections 15.8.9, Notes on Memory Programming and 15.9,
Notes on Flash Memory Programming/Erasing.
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Section 15 ROM
15.8.2
Memory Map
Figure 15.15 shows the PROM mode memory map.
Address in
MCU mode
H'00000
This LSI
Address in
PROM mode
H'00000
On-chip ROM
area
H'1FFFF
H'1FFFF
Figure 15.15 PROM Mode Memory Map
15.8.3
PROM Mode Operation
Table 15.10 shows how the different operating modes are set when using PROM mode, and table
15.11 lists the commands used in PROM mode. Details of each mode are given below.
• Memory Read Mode
Memory read mode supports byte reads.
• Auto-Program Mode
Auto-program mode supports programming of 128 bytes at a time. Status polling is used to
confirm the end of auto-programming.
• Auto-Erase Mode
Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used
to confirm the end of auto-erasing.
• Status Read Mode
Status polling is used for auto-programming and auto-erasing, and normal termination can be
confirmed by reading the I/O 6 signal. In status read mode, error information is output if an
error occurs.
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Section 15 ROM
Table 15.10 Settings for Each Operating Mode in PROM Mode
Pin Names*
3
Mode
FWE
CE
OE
WE
D0 to D7
A0 to A17
Read
VCC or 0
L
L
H
Data output
Ain
Output disable
VCC or 0
L
H
H
Hi-Z
X
Command write
VCC or 0
L
H
L
Data input
Ain*
VCC or 0
H
X
X
Hi-Z
X
Chip disable*
1
2
Legend:
L:
Low level
H:
High level
X:
Undefined
Hi-Z: High impedance
Notes: For command writes when making a transition to auto-program or auto-erase mode, input
Vcc (V) to FWE.
1. Chip disable is not a standby state; internally, it is an operation state.
2. Ain indicates that there is also address input in auto-program mode.
3. The pin names are those assigned in this LSI PROM mode.
Table 15.11 PROM Mode Commands
1st Cycle
2nd Cycle
Command Name
Number
of Cycles
Mode
Address
Data
Mode
Address
Data
Memory read mode
1
Write
X
H'00
Read
RA
Dout
Auto-program mode
129
Write
X
H'40
Write
WA
Din
Auto-erase mode
2
Write
X
H'20
Write
X
H'20
Status read mode
2
Write
X
H'71
Write
X
H'71
Legend:
RA:
Read address
WA: Program address
Dout: Read data
Din:
Program data
Note: In auto-program mode, 129 cycles are required for command writing by a simultaneous
128-byte write.
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Section 15 ROM
Table 15.12 DC Characteristics in Memory Read Mode
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Typ
Max
Unit
Input high
voltage
07–00, A16–A0
VIH
2.2
—
Vcc +0.3
V
Input low
voltage
07–00, A16–A0
VIL
0.3
—
0.8
V
Schmitt trigger OE, CE, WE
input voltage
VT
1.0
—
2.5
V
2.0
—
3.5
V
VT – VT
0.4
—
—
V
–
+
VT
+
–
Test Conditions
Output high
voltage
07–00
VOH
2.4
—
—
V
IOH = –200 µA
Output low
voltage
07–00
VOL
—
—
0.45
V
IOL = 1.6 mA
Input leakage
current
07–00, A16–A0
| ILI |
—
—
2
µA
VCC current
Reading
Icc
—
40
65
mA
Programming Icc
—
50
85
mA
Erasing
—
50
85
mA
Icc
Note: For the electrical characteristics of the flash memory version, see section 18.2.1, Absolute
Maximum Ratings.
Exceeding the absolute maximum ratings may cause permanent damage to the chip.
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Section 15 ROM
15.8.4
Memory Read Mode
AC Characteristics
Table 15.13 AC Characteristics in Memory Read Mode Transition
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Command write cycle
tnxtc
20
—
µs
CE hold time
tceh
0
—
ns
CE setup time
tces
0
—
ns
Data hold time
tdh
50
—
ns
Data setup time
tds
50
—
ns
Write pulse width
twep
70
—
ns
WE rise time
tr
—
30
ns
WE fall time
tf
—
30
ns
Command write
Notes
Memory read mode
A16–A0
Address stable
tces
tceh
tnxtc
CE
OE
tf
twep
tr
WE
tds
tdh
I/O7–I/O0
Note: Data is latched on the rising edge of WE.
Figure 15.16 Timing Waveform in Memory Read Mode Transition
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Section 15 ROM
Table 15.14 AC Characteristics in Memory Contents Read
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Access time
tacc
—
20
µs
CE output delay time
tce
—
150
ns
OE output delay time
toe
—
150
ns
Output disable delay time
tdf
—
100
ns
Data output hold time
toh
5
—
ns
A16–A0
Address stable
CE
VIL
OE
VIL
WE
VIH
Notes
Address stable
tacc
tacc
toh
toh
I/O7–I/O0
Figure 15.17 CE/OE
CE OE Enable State Read
A16–A0
Address stable
Address stable
tce
tce
CE
WE
toe
toe
OE
VIH
tacc
tacc
toh
tdf
I/O7–I/O0
Figure 15.18 CE/OE
CE OE Clock Read
Rev.3.00 Mar. 26, 2007 Page 480 of 682
REJ09B0353-0300
toh
tdf
Section 15 ROM
Table 15.15 AC Characteristics in Transition from Memory Read Mode to Another Mode
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Command write cycle
tnxtc
20
—
µs
CE hold time
tceh
0
—
ns
CE setup time
tces
0
—
ns
Data hold time
tdh
50
—
ns
Data setup time
tds
50
—
ns
Write pulse width
twep
70
—
ns
WE rise time
tr
—
30
ns
WE fall time
tf
—
30
ns
Another mode command write
Memory read mode
A16–A0
Notes
Address stable
tnxtc
tces
tceh
CE
OE
tf
twep
tr
WE
tds
tdh
I/O7–I/O0
Note: Do not enable WE and OE simultaneously.
Figure 15.19 Transition From Memory Read Mode to Another Mode
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Section 15 ROM
15.8.5
Auto-Program Mode
AC Characteristics
Table 15.16 AC Characteristics in Auto-Program Mode
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Command write cycle
tnxtc
20
—
µs
CE hold time
tceh
0
—
ns
CE setup time
tces
0
—
ns
Data hold time
tdh
50
—
ns
Data setup time
tds
50
—
ns
Write pulse width
twep
70
—
ns
Status polling start time
twsts
1
—
ms
Status polling access time
tspa
—
150
ns
Address setup time
tas
0
—
ns
Address hold time
tah
60
—
ns
Memory write time
twrite
1
3000
ms
WE rise time
tr
—
30
ns
WE fall time
tf
—
30
ns
Write setup time
tpns
100
—
ns
Write end setup time
tpnh
100
—
ns
Rev.3.00 Mar. 26, 2007 Page 482 of 682
REJ09B0353-0300
Notes
Section 15 ROM
tpnh
FWE
Address stable
A16–A0
tpns
tces
tnxtc
tceh
tnxtc
CE
OE
WE
tf
twep
tas
tr
tah
twsts
Data transfer
1byte to 128bytes
tds
tdh
tspa
twrite
I/O7
Programming operation
end identification signal
I/O6
Programming normal
end identification signal
I/O5–I/O0
H'00
H'40
Figure 15.20 Auto-Program Mode Timing Waveforms
Cautions on Use of Auto-Program Mode
• In auto-program mode, 128 bytes are programmed simultaneously. This should be carried out
by executing 128 consecutive byte transfers.
• A 128-byte data transfer is necessary even when programming fewer than 128 bytes. In this
case, H'FF data must be written to the extra addresses.
• If a value other than an effective address is input, processing will switch to a memory write
operation but a write error will be flagged.
• Memory address transfer is performed in the second cycle (figure 15.20). Do not perform
transfer after the second cycle.
• Do not perform a command write during a programming operation.
• Perform one auto-programming operation for a 128-byte block for each address.
Characteristics are not guaranteed for two or more programming operations.
• Confirm normal end of auto-programming by checking I/O 6. Alternatively, status read mode
can also be used for this purpose.
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Section 15 ROM
15.8.6
Auto-Erase Mode
AC Characteristics
Table 15.17 AC Characteristics in Auto-Erase Mode
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Command write cycle
tnxtc
20
—
µs
CE hold time
tceh
0
—
ns
CE setup time
tces
0
—
ns
Data hold time
tdh
50
—
ns
Data setup time
tds
50
—
ns
Write pulse width
twep
70
—
ns
Status polling start time
tests
1
—
ms
Status polling access time
tspa
—
150
ns
Memory erase time
terase
100
40000
ms
WE rise time
tr
—
30
ns
WE fall time
tf
—
30
ns
Erase setup time
tens
100
—
ns
Erase end setup time
tenh
100
—
ns
FWE
Notes
tenh
A16–A0
tens
tces
tnxtc
tceh
tnxtc
CE
OE
tf
twep
tests
tr
tspa
WE
tds
terase
tdh
I/O7
Erase end
identification signal
I/O6
Erase normal and
confirmation signal
I/O5–I/O0
H'20
H'20
H'00
Figure 15.21 Auto-Erase Mode Timing Waveforms
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REJ09B0353-0300
Section 15 ROM
Caution on Use of Erase-Program Mode
• Auto-erase mode supports only entire memory erasing.
• Do not perform a command write during auto-erasing.
• Confirm normal end of auto-erasing by checking I/O 6. Alternatively, status read mode can
also be used for this purpose.
15.8.7
Status Read Mode
AC Characteristics
Table 15.18 AC Characteristics in Status Read Mode
Conditions: VCC = 5.0 V ±10%, VSS = 0 V, Ta = 25°C ±5°C
Item
Symbol
Min
Max
Unit
Command write cycle
tnxtc
20
—
µs
CE hold time
tceh
0
—
ns
CE setup time
tces
0
—
ns
Data hold time
tdh
50
—
ns
Data setup time
tds
50
—
ns
Write pulse width
twep
70
—
ns
OE output delay time
toe
—
150
ns
Disable delay time
tdf
—
100
ns
CE output delay time
tce
—
150
ns
WE rise time
tr
—
30
ns
WE fall time
tf
—
30
ns
Notes
Rev.3.00 Mar. 26, 2007 Page 485 of 682
REJ09B0353-0300
Section 15 ROM
A16–A0
tces
tnxtc
tceh
tces
tnxtc
tceh
tnxtc
CE
tce
OE
twep
tf
tr
twep
tf
tr
toe
WE
tds
tdh
tds
H'71
I/O7–I/O0
tdf
tdh
H'71
Note: I/O3 and I/O2 are undefined.
Figure 15.22 Status Read Mode Timing Waveforms
Table 15.19 Status Read Mode Return Commands
Pin Name
I/O7
Attribute
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
Normal
Command
end
error
identification
Programming error
Erase
error
—
—
ProgramEffective
ming or
address
erase count error
exceeded
Initial value
0
0
0
0
0
0
0
0
Indications
Normal
end: 0
Command
error: 1
Erase
error: 1
—
—
Abnormal
end: 1
Otherwise:
0
Programming
error: 1
Count
exceeded:
1
Effective
address
error: 1
Otherwise:
0
Otherwise:
0
Otherwise:
0
Otherwise:
0
I/O0
Notes on status read mode
After exiting auto-program mode or auto-erase mode, status read mode must be executed without
dropping the power supply.
Immediately after powering on, or once powering off, the return command is undefined.
Rev.3.00 Mar. 26, 2007 Page 486 of 682
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Section 15 ROM
15.8.8
PROM Mode Transition Time
Commands cannot be accepted during the oscillation stabilization period or the PROM mode setup
period. After the PROM mode setup time, a transition is made to memory read mode.
Table 15.20 Stipulated Transition Times to Command Wait State
Item
Symbol
Min
Max
Unit
Standby release (oscillation
settling time)
tosc1
20
—
ms
PROM mode setup time
tbmv
10
—
ms
VCC hold time
tdwn
0
—
ms
tosc1
tbmv
Memory read
mode
Command wait
state
Auto-program mode
Auto-erase mode
Notes
Command wait state
Normal/abnormal
end identification
t
dwn
VCC
RES
FWE
Note: Set the FWE input pin low level, except in the auto-program and auto-erase modes.
Figure 15.23 Oscillation Stabilization Time, Boot Program Transfer Time
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Section 15 ROM
15.8.9
Notes on Memory Programming
• When programming addresses which have previously been programmed, carry out autoerasing before auto-programming (figure 15.24).
• When performing programming using PROM mode on a chip that has been
programmed/erased in an on-board programming mode, auto-erasing is recommended before
carrying out auto-programming.
Notes: 1. The flash memory is initially in the erased state when the device is shipped by Renesas.
For other chips for which the erasure history is unknown, it is recommended that autoerasing be executed to check and supplement the initialization (erase) level.
2. In the PROM mode, auto-programming to a 128-byte programming unit block should
be performed only once.
Do not perform additional programming to a programmed 128-byte programming unit
block.
To reprogram, perform auto-programming after auto-erasing.
Reprogram to
programmed address
Auto-erase (chip batch)
Auto-program
End
Figure 15.24 Reprogramming to Programmed Address
15.9
Notes on Flash Memory Programming/Erasing
The following describes notes when using the on-board programming mode, RAM emulation
function, and PROM mode.
(1) Program/erase with the specified voltage and timing.
Applied voltages in excess of the rating can permanently damage the device.
Use a PROM writer that supports the Renesas Technology 128 kbytes flash memory on-board
microcomputer device type.
Do not set the PROM writer at the HN28F101. If the PROM writer is set to the HN28F101 by
mistake, a high level can be input to the FWE pin and the LSI can be destroyed.
Rev.3.00 Mar. 26, 2007 Page 488 of 682
REJ09B0353-0300
Section 15 ROM
(2) Notes on powering on/powering off (See figures 15.25 to 15.27.)
Input a high level to the FWE pin after verifying Vcc. Before turning off Vcc, set the FWE pin
to a low level.
When powering on and powering off the Vcc power supply, fix the FWE pin a low level and
set the flash memory to the hardware protection mode.
Be sure that the powering on and powering off timing is satisfied even when the power is
turned off and back on in the event of a power interruption, etc. If this timing is not satisfied,
microcomputer runaway, etc., may cause overprogramming or overerasing and the memory
cells may not operate normally.
(3) Notes on FWE pin High/Low switching (See figures 15.25 to 15.27.)
Input FWE in the state microcomputer operation is verified. If the microcomputer does not
satisfy the operation confirmation state, fix the FWE pin at a low level to set the protection
mode.
To prevent erroneous programming/erasing of flash memory, note the following in FWE pin
High/Low switching:
•
Apply an input to the FWE pin after the Vcc voltage has stabilized within the rated voltage.
If an input is applied to the FWE pin when the microcomputer Vcc voltage does not satisfy
the rated voltage, flash memory may be erroneously programmed or erased because the
microcomputer is in the unconfirmed state.
•
Apply an input to the FWE pin when the oscillation has stabilized (after the oscillation
stabilization time).
When turning on the Vcc power, apply an input to the FWE pin after holding the RES pin
at a low level during the oscillation stabilization time (tosc1=20ms). Do not apply an input to
the FWE pin when oscillation is stopped or unstable.
•
In the boot mode, perform FWE pin High/Low switching during reset.
In transition to the boot mode, input FWE = High level and set MD2 to MD0 while the RES
input is low. At this time, the FWE and MD2 to MD0 inputs must satisfy the mode
programming setup time (tMDS) relative to the reset clear timing. The mode programming
setup time is necessary for RES reset timing even in transition from the boot mode to
another mode.
In reset during operation, the RES pin must be held at a low level for at least 20 system
clocks.
•
In the user program mode, FWE = High/Low switching is possible regardless of the RES
input.
FWE input switching is also possible during program execution on flash memory.
Rev.3.00 Mar. 26, 2007 Page 489 of 682
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Section 15 ROM
•
Apply an input to FWE when the program is not running away.
When applying an input to the FWE pin, the program execution state must be supervised
using a watchdog timer, etc.
•
Input low level to the FWE pin when the SWE, ESU, PSU, EV, PV, E, and P bits in
FLMCR have been cleared.
Do not erroneously set the SWE, ESU, PSU, EV, PV, E, and P bits when FWE High/Low.
(4) Do not input a constant high level to the FWE pin.
To prevent erroneous programming/erasing in the event of program runaway, etc., input a high
level to the FWE pin only when programming/erasing flash memory (including flash memory
emulation by RAM). Avoid system configurations that constantly input a high level to the
FWE pin. Handle program runaway, etc. by starting the watchdog timer so that flash memory
is not overprogrammed/overerased even while a high level is input to the FWE pin.
(5) Program/erase the flash memory in accordance with the recommended algorithms.
The recommended algorithms can program/erase the flash memory without applying voltage
stress to the device or sacrificing the reliability of the program data.
When setting the PSU and ESU bits in FLMCR, set the watchdog timer for program runaway,
etc.
(6) Do not set/clear the SWE bit while a program is executing on flash memory.
Before performing flash memory program execution or data read, clear the SWE bit.
If the SWE bit is set, the flash data can be reprogrammed, but flash memory cannot be
accessed for purposes other than verify (verify during programming/erase).
Similarly perform flash memory program execution and data read after clearing the SWE bit
even when using the RAM emulation function with a high level input to the FWE pin.
However, RAM area that overlaps flash memory space can be read/programmed whether the
SWE bit is set or cleared.
(7) Do not use an interrupt during flash memory programming or erasing.
Since programming/erase operations (including emulation by RAM) have priority when a high
level is input to the FWE pin, disable all interrupt requests, including NMI.
(8) Do not perform additional programming. Reprogram flash memory after erasing.
With on-board programming, program to 32-byte programming unit blocks one time only.
Program to 128-byte programming unit blocks one time only even in the PROM mode. Erase
all the programming unit blocks before reprogramming.
Bus release must also be disabled.
Rev.3.00 Mar. 26, 2007 Page 490 of 682
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Section 15 ROM
(9) Before programming, check that the chip is correctly mounted in the PROM programmer.
Overcurrent damage to the device can result if the index marks on the PROM programmer
socket, socket adapter, and chip are not correctly aligned.
(10) Do not touch the socket adapter or chip during programming. Touching either of these can
cause contact faults and write errors.
Wait
time: x
Programming and
erase possible
φ
tOSC1
Min 0 µs
VCC
tMDS
FWE
Min 0 µs
MD2 to MD0*1
tMDS
RES
SWE
set
SWE
clear
SWE bit
: Flash memory access disabled period
(x: Wait time after SWE setting)*2
: Flash memory reprogrammable period
(Flash memory program execution and data read, other than verify, are disabled.)
Notes: 1. Always fix the level by pulling down or pulling up the mode pins (MD2 to MD0)
until powering off, except for mode switching.
2. See section 18.2.5, Flash Memory Characteristics.
Figure 15.25 Powering On/Off Timing (Boot Mode)
Rev.3.00 Mar. 26, 2007 Page 491 of 682
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Section 15 ROM
Wait
time: x
Programming and
erase possible
φ
tOSC1
Min 0 µs
VCC
FWE
MD2 to MD0*1
tMDS
RES
SWE
set
SWE
clear
SWE bit
: Flash memory access disabled period
(x: Wait time after SWE setting)*2
: Flash memory reprogrammable period
(Flash memory program execution and data read, other than verify, are disabled.)
Notes: 1. Always fix the level by pulling down or pulling up the mode pins (MD2 to MD0)
except for mode switching.
2. See section 18.2.5, Flash Memory Characteristics.
Figure 15.26 Powering On/Off Timing (User Program Mode)
Rev.3.00 Mar. 26, 2007 Page 492 of 682
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Section 15 ROM
Programming
and
Wait
erase
Wait
Programming and
time: x possible time: x erase possible
Wait
Programming and
time: x erase possible
Programming
and
Wait
erase
time: x possible
φ
tOSC1
VCC
Min 0 µs
FWE
tMDS
tMDS*2
MD2 to MD0
tMDS
tRESW
RES
SWE set
SWE clear
SWE bit
Mode switching*1
Boot mode
Mode
User
switching*1 mode
User program mode
User
mode
User
program
mode
: Flash memory access disabled time
(x: Wait time after SWE setting)*3
: Flash memory reprogammable period
(Flash memory program execution and data read, other than verify, are disabled.)
Notes: 1. In transition to the boot mode and transition from the boot mode to another mode, mode switching via RES input
is necessary.
During this switching period (period during which a low level is input to the RES pin), the state of the address
dual port and bus control output signals (AS,RD,WR) changes.
Therefore, do not use these pins as output signals during this switching period.
2. When making a transition from the boot mode to another mode, the mode programming setup time tMDS relative
to the RES clear timing is necessary.
3. See section 18.2.5, Flash Memory Characteristics.
Figure 15.27 Mode Transition Timing
(Example: Boot Mode → User Mode ↔ User Program Mode)
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Section 15 ROM
15.10
Mask ROM Overview
15.10.1 Block Diagram
Figure 15.28 shows a block diagram of the ROM.
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'00000
H'00001
H'00002
H'00003
On-chip ROM
H'1FFFE
H'1FFFF
Even addresses
Odd addresses
Figure 15.28 ROM Block Diagram (H8/3039)
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Section 15 ROM
15.11
Notes on Ordering Mask ROM Version Chip
When ordering the H8/3039 Group chips with a mask ROM, note the following.
• When ordering through an EPROM, use a 128-kbyte one.
• Fill all the unused addresses with H'FF as shown in figure15.29 to make the ROM data size
128 kbytes for all H8/3039 Group chips, which incorporate different sizes of ROM. This
applies to ordering through an EPROM and through electrical data transfer.
• The flash memory versions only registers for flash memory control (FLMCR, EBR, RAMCR,
and FLMSR) are not provided in the mask ROM versions. Reading the corresponding
addresses in a mask ROM version will always return 1s, and writes to these addresses are
disabled. This must be borne in mind when switching from the flash memory versions to a
mask ROM version.
HD6433039
(ROM: 128 kbytes)
Address:
H'00000–H'1FFFF
HD6433038
(ROM: 64 kbytes)
Address:
H'00000–H'0FFFF
H'00000
HD6433037
(ROM: 32 kbytes)
Address:
H'00000–H'07FFF
H'00000
HD6433036
(ROM: 16 kbytes)
Address:
H'00000–H'03FFF
H'00000
H'00000
H'03FFF
H'04000
H'07FFF
H'08000
H'0FFFF
H'10000
Not used*
Not used*
Not used*
H'1FFFF
H'1FFFF
H'1FFFF
H'1FFFF
Note: * Program H'FF to all addresses in these areas.
Figure 15.29 Mask ROM Addresses and Data
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Section 15 ROM
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Section 16 Clock Pulse Generator
Section 16 Clock Pulse Generator
16.1
Overview
This LSI has a built-in clock pulse generator (CPG) that generates the system clock (φ) and other
internal clock signals (φ/2 to φ/4096). After duty adjustment, a frequency divider divides the clock
1
frequency to generate the system clock (φ). The system clock is output at the φ pin* and furnished
as a master clock to prescalers that supply clock signals to the on-chip supporting modules.
Frequency division ratios of 1/1, 1/2, 1/4, and 1/8 can be selected for the frequency divider by
settings in a division control register (DIVCR). Power consumption in the chip is reduced in
2
almost direct proportion to the frequency division ratio* .
Notes: 1. Usage of the φ pin differs depending on the chip operating mode and the PSTOP bit
setting in the module standby control register (MSTCR). For details, see section 17.7,
System Clock Output Disabling Function.
2. The division ratio of the frequency divider can be changed dynamically during
operation. The clock output at the φ pin also changes when the division ratio is
changed. The frequency output at the φ pin is shown below.
φ = EXTAL × n
EXTAL: Frequency of crystal resonator or external clock signal
n:
Frequency division ratio (n = 1/1, 1/2, 1/4, or 1/8)
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Section 16 Clock Pulse Generator
16.1.1
Block Diagram
Figure 16.1 shows a block diagram of the clock pulse generator.
CPG
XTAL
Oscillator
EXTAL
Duty
adjustment
circuit
Frequency
divider
Prescalers
Division
control
register
Data bus
φ
φ/2 to φ/4096
Figure 16.1 Block Diagram of Clock Pulse Generator
16.2
Oscillator Circuit
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock
signal.
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Section 16 Clock Pulse Generator
16.2.1
Connecting a Crystal Resonator
Circuit Configuration
A crystal resonator can be connected as in the example in figure 16.2. The damping resistance Rd
should be selected according to table 16.1. An AT-cut parallel-resonance crystal should be used.
C L1
EXTAL
XTAL
Rd
C L1 = C L2 = 10 pF to 22 pF
C L2
Figure 16.2 Connection of Crystal Resonator (Example)
Table 16.1 Damping Resistance Value (Example)
Frequency (MHz)
2
4
8
10
12
16
18
Rd (Ω
Ω)
1k
500
200
0
0
0
0
Crystal Resonator
Figure 16.3 shows an equivalent circuit of the crystal resonator. The crystal resonator should have
the characteristics listed in table 16.2.
CL
L
Rs
XTAL
EXTAL
CO
AT-cut parallel-resonance type
Figure 16.3 Crystal Resonator Equivalent Circuit
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Section 16 Clock Pulse Generator
Table 16.2 Crystal Resonator Parameters
Frequency (MHz) 2
4
8
10
12
16
18
Rs max (Ω
Ω)
500
120
80
70
60
50
40
Co max (pF)
7
7
7
7
7
7
7
Use a crystal resonator with a frequency equal to the system clock frequency (φ).
Notes on Board Design
When a crystal resonator is connected, the following points should be noted:
Other signal lines should be routed away from the oscillator circuit to prevent induction from
interfering with correct oscillation. See figure 16.4.
When the board is designed, the crystal resonator and its load capacitors should be placed as close
as possible to the XTAL and EXTAL pins.
Avoid
Signal A Signal B
C L2
LSI
XTAL
EXTAL
C L1
Figure 16.4 Example of Incorrect Board Design
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Section 16 Clock Pulse Generator
16.2.2
External Clock Input
Circuit Configuration
An external clock signal can be input as shown in the examples in figure 16.5. In example b, the
clock should be held high in standby mode.
If the XTAL pin is left open, the stray capacitance should not exceed 10 pF.
EXTAL
External clock input
XTAL
Open
a. XTAL pin left open
EXTAL
XTAL
External clock input
74HC04
b. Complementary clock input at XTAL pin
Figure 16.5 External Clock Input (Examples)
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Section 16 Clock Pulse Generator
External Clock
The external clock frequency should be equal to the system clock frequency (φ). Table 16.3 and
figure 16.6 indicate the clock timing.
Table 16.3 Clock Timing
VCC =
2.7 V to 5.5 V
VCC =
5.0 V ±10%
Item
Symbol
Min
Max
Min
Max
Unit
Test Conditions
External clock rise
time
tEXr
—
10
—
5
ns
Figure 16.6
External clock fall
time
tEXf
—
10
—
5
ns
External clock
—
30
70
30
70
%
φ ≥ 5 MHz
40
60
40
60
%
φ < 5 MHz
40
60
40
60
%
input duty (a/tcyc)
φ clock width duty
(b/tcyc)
—
Figure
16.6
tcyc
a
VCC × 0.5
EXTAL
tEXr
tEXf
tcyc
b
φ
VCC × 0.5
Figure 16.6 External Clock Input Timing
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Section 16 Clock Pulse Generator
Table 16.4 and figure 16.7 show the timing for the external clock output stabilization delay time.
The oscillator and duty correction circuit have the function of regulating the waveform of the
external clock input to the EXTAL pin. When the specified clock signal is input to the EXTAL
pin, internal clock signal output is confirmed after the elapse of the external clock output
stabilization delay time (tDEXT). As clock signal output is not confirmed during the tDEXT period, the
reset signal should be driven low and the reset state maintained during this time.
Table 16.4 External Clock Output Stabilization Delay Time
Conditions: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V
Item
Symbol
Min
Max
Unit
Notes
External clock output stabilization
delay time
tDEXT*
500
—
µs
Figure 16.7
Note:
*
VCC
STBY
tDEXT includes a 10 tcyc RES pulse width (tRESW).
2.7 V
VIH
EXTAL
φ
RES
tDEXT*
Note: * tDEXT includes a 10 tcyc RES pulse width (tRESW).
Figure 16.7 External Clock Output Stabilization Delay Time
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Section 16 Clock Pulse Generator
16.3
Duty Adjustment Circuit
When the oscillator frequency is 5 MHz or higher, the duty adjustment circuit adjusts the duty
cycle of the clock signal from the oscillator to generate the system clock (φ).
16.4
Prescalers
The prescalers divide the system clock (φ) to generate internal clocks (φ/2 to φ/4096).
16.5
Frequency Divider
The frequency divider divides the duty-adjusted clock signal to generate the system clock (φ). The
frequency division ratio can be changed dynamically by modifying the value in DIVCR, as
described below. Power consumption in the chip is reduced in almost direct proportion to the
frequency division ratio. The system clock generated by the frequency divider can be output at the
φ pin.
16.5.1
Register Configuration
Table 16.5 summarizes the frequency division register.
Table 16.5 Frequency Division Register
Address*
Name
Abbreviation
R/W
Initial Value
H'FF5D
Division control register
DIVCR
R/W
H'FC
Note:
*
The lower 16 bits of the address are shown.
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Section 16 Clock Pulse Generator
16.5.2
Division Control Register (DIVCR)
DIVCR is an 8-bit readable/writable register that selects the division ratio of the frequency
divider.
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
DIV1
DIV0
Initial value
1
1
1
1
1
1
0
0
Read/Write
—
—
—
—
—
—
R/W
R/W
Reserved bits
Divide bits 1 and 0
These bits select the
frequency division ratio
DIVCR is initialized to H'FC by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 7 to 2—Reserved: These bits cannot be modified and are always read as 1.
Bits 1 and 0—Divide (DIV1 and DIV0): These bits select the frequency division ratio, as
follows.
Bit 1
DIV1
Bit 0
DIV0
Frequency Division Ratio
0
0
1/1
0
1
1/2
1
0
1/4
1
1
1/8
(Initial value)
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Section 16 Clock Pulse Generator
16.5.3
Usage Notes
The DIVCR setting changes the φ frequency, so note the following points.
• Select a frequency division ratio that stays within the assured operation range specified for the
clock cycle time tcyc in the AC electrical characteristics. Note that φMIN = 1 MHz. Avoid settings
that give system clock frequencies less than 1 MHz.
All on-chip module operations are based on φ. Note that the timing of timer operations, serial
communication, and other time-dependent processing differs before and after any change in the
division ratio. The waiting time for exit from software standby mode also changes when the
division ratio is changed. For details, see section 17.4.3, Selection of Oscillator Waiting Time after
Exit from Software Standby Mode
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Section 17 Power-Down State
Section 17 Power-Down State
17.1
Overview
This LSI has a power-down state that greatly reduces power consumption by halting CPU
functions, and a module standby function that reduces power consumption by selectively halting
on-chip modules. The power-down state includes the following three modes:
• Sleep mode
• Software standby mode
• Hardware standby mode
The module standby function can halt on-chip supporting modules independently of the powerdown state. The modules that can be halted are the ITU, SCI0, SCI1, and A/D converter.
Table 17.1 indicates the methods of entering and exiting these power-down modes and the status
of the CPU and on-chip supporting modules in each mode.
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System control register
Software standby bit
Module standby control register
Active
Halted
Halted
Halted
CPU
—
Undeter
mined
Held
Held
CPU
Registers
Halted
and
reset
Halted
and
reset
Active
SCI0
Halted*1 Halted*1
and
and
reset
reset
Halted
and
reset
Halted
and
reset
Active
ITU
Halted
and
reset
Halted
and
reset
Active
A/D
Halted*1 Halted*1
and
and
reset
reset
Halted
and
reset
Halted
and
reset
Active
SCI1
Active
Halted
and
reset
Halted
and
reset
Active
Supporting
Modules
—
High
impedance*1
High
impedance
Held*2
—
High
impedance
•
•
•
•
Held
High
output
Held
3. When a MSTCR bit is set to 1, the registers of the corresponding on-chip supporting module are initialized. To restart the module, first
clear the MSTCR bit to 0, then set up the module registers again.
2. The RAME bit must be cleared to 0 in SYSCR before the transition from the program execution state to hardware standby mode.
• STBY
• RES
• Clear MSTCR
bit to 0*3
• STBY
• RES
NMI
IRQ0 to IRQ1
RES
STBY
• Interrupt
• RES
• STBY
Held
Held
φoutput
Exiting
Methods
I/O
Ports
φ clock
output
RAM
Notes: 1. State in which the corresponding MSTCR bit was set to 1. For details see section 17.2.2, Module Standby Control Register (MSTCR).
Legend:
SYSCR:
SSBY:
MSTCR:
Active
Module
standby
function
Corresponding
bit set to 1 in
MSTCR
Halted
Hardware Low input at
standby STBY pin
mode
SLEEP instruc- Halted
tion executed
while SSBY = 1
in SYSCR
Software
standby
mode
Clock
SLEEP instruc- Active
tion executed
while SSBY = 0
in SYSCR
Entering
Conditions
Sleep
mode
Mode
State
Section 17 Power-Down State
Table 17.1 Power-Down State and Module Standby Function
Section 17 Power-Down State
17.2
Register Configuration
This LSI has a system control register (SYSCR) that controls the power-down state, and a module
standby control register (MSTCR) that controls the module standby function. Table 17.2
summarizes this register.
Table 17.2 Register Configuration
Address*
Name
Abbreviation
R/W
Initial Value
H'FFF2
System control register
SYSCR
R/W
H'0B
H'FF5E
Module standby control
register
MSTCR
R/W
H'40
Note:
17.2.1
*
Lower 16 bits of the address.
System Control Register (SYSCR)
Bit
7
6
5
4
3
2
1
0
SSBY
STS2
STS1
STS0
UE
NMIEG
—
RAME
Initial value
0
0
0
0
1
0
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
RAM enable
Reserved bit
NMI edge select
User bit enable
Standby timer select 2 to 0
These bits select the
waiting time at exit from
software standby mode
Software standby
Enables transition to
software standby mode
SYSCR is an 8-bit readable/writable register. Bit 7 (SSBY) and bits 6 to 4 (STS2 to STS0) control
the power-down state. For information on the other SYSCR bits, see section 3.3, System Control
Register (SYSCR).
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Section 17 Power-Down State
Bit 7—Software Standby (SSBY): Enables transition to software standby mode. When software
standby mode is exited by an external interrupt, this bit remains set to 1 after the return to normal
operation. To clear this bit, write 0.
Bit 7
SSBY
Description
0
SLEEP instruction causes transition to sleep mode
1
SLEEP instruction causes transition to software standby mode
(Initial value)
Bits 6 to 4—Standby Timer Select (STS2 to STS0): These bits select the length of time the CPU
and on-chip supporting modules wait for the clock to settle when software standby mode is exited
by an external interrupt. If the clock is generated by a crystal resonator, set these bits according to
the clock frequency so that the waiting time (for the clock to stabilize) will be at least 7 ms. See
table 17.3. If an external clock is used, any setting is permitted.
Bit 6
STS2
Bit 5
STS1
Bit 4
STS0
Description
0
0
0
Waiting time = 8192 states
1
Waiting time = 16384 states
0
Waiting time = 32768 states
1
Waiting time = 65536 states
0
0
Waiting time = 131072 states
0
1
Waiting time = 1024 states
1
—
Illegal setting
1
1
Rev.3.00 Mar. 26, 2007 Page 510 of 682
REJ09B0353-0300
(Initial value)
Section 17 Power-Down State
17.2.2
Module Standby Control Register (MSTCR)
MSTCR is an 8-bit readable/writable register that controls output of the system clock (φ). It also
controls the module standby function, which places individual on-chip supporting modules in the
standby state. Module standby can be designated for the ITU, SCI0, SCI1, and A/D converter
modules.
Bit
7
6
5
4
3
MSTOP5 MSTOP4 MSTOP3
2
1
0
PSTOP
—
—
—
MSTOP0
Initial value
0
1
0
0
0
0
0
0
Read/Write
R/W
—
R/W
R/W
R/W
—
—
R/W
Reserved bit
Reserved bit
φ clock stop
Enables or disables
output of the system clock
Module standby 5 to 3, and 0
These bits select modules
to be placed in standby
MSTCR is initialized to H'40 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7—φ
φ Clock Stop (PSTOP): Enables or disables output of the system clock (φ).
Bit 7
PSTOP
Description
0
System clock output is enabled
1
System clock output is disabled
(Initial value)
Bit 6—Reserved: This bit cannot be modified and is always read as 1.
Bit 5—Module Standby 5 (MSTOP5): Selects whether to place the ITU in standby.
Bit 5
MSTOP5
Description
0
ITU operates normally
1
ITU is in standby state
(Initial value)
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Section 17 Power-Down State
Bit 4—Module Standby 4 (MSTOP4): Selects whether to place SCI0 in standby.
Bit 4
MSTOP4
Description
0
SCI0 operates normally
1
SCI0 is in standby state
(Initial value)
Bit 3—Module Standby 3 (MSTOP3): Selects whether to place SCI1 in standby.
Bit 3
MSTOP3
Description
0
SCI1 operates normally
1
SCI1 is in standby state
(Initial value)
Bits 2 to 1—Reserved: Bits 2 to 1 are reserved.
Bit 0—Module Standby 0 (MSTOP0): Selects whether to place the A/D converter in standby.
Bit 0
MSTOP0
Description
0
A/D converter operates normally
1
A/D converter is in standby state
Rev.3.00 Mar. 26, 2007 Page 512 of 682
REJ09B0353-0300
(Initial value)
Section 17 Power-Down State
17.3
Sleep Mode
17.3.1
Transition to Sleep Mode
When the SSBY bit is cleared to 0 in the system control register (SYSCR), execution of the
SLEEP instruction causes a transition from the program execution state to sleep mode.
Immediately after executing the SLEEP instruction the CPU halts, but the contents of its internal
registers are retained. The on-chip supporting modules do not halt in sleep mode. On-chip
supporting modules which have been placed in standby by the module standby function, however,
remain halted.
17.3.2
Exit from Sleep Mode
Sleep mode is exited by an interrupt, or by input at the RES or STBY pin.
Exit by Interrupt: An interrupt terminates sleep mode and causes a transition to the interrupt
exception handling state. Sleep mode is not exited by an interrupt source in an on-chip supporting
module if the interrupt is disabled in the on-chip supporting module. Sleep mode is not exited by
an interrupt other then NMI if the interrupt is masked by interrupt priority settings (IPR) and the
settings of the I and UI bits in CCR.
Exit by RES Input: Low input at the RES pin exits from sleep mode to the reset state.
Exit by STBY Input: Low input at the STBY pin exits from sleep mode to hardware standby
mode.
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Section 17 Power-Down State
17.4
Software Standby Mode
17.4.1
Transition to Software Standby Mode
To enter software standby mode, execute the SLEEP instruction while the SSBY bit is set to 1 in
SYSCR.
In software standby mode, current dissipation is reduced to an extremely low level because the
CPU, clock, and on-chip supporting modules all halt. The on-chip supporting modules are reset
and halted. As long as the specified voltage is supplied, however, CPU register contents and onchip RAM data are retained. The settings of the I/O ports are also held.
17.4.2
Exit from Software Standby Mode
Software standby mode can be exited by input of an external interrupt at the NMI, IRQ0, IRQ1, or
by input at the RES or STBY pin.
Exit by Interrupt: When an NMI, IRQ0, or IRQ1 interrupt request signal is received, the clock
oscillator begins operating. After the oscillator settling time selected by bits STS2 to STS0 in
SYSCR, stable clock signals are supplied to the entire chip, software standby mode ends, and
interrupt exception handling begins. Software standby mode is not exited if the interrupt enable
bits of interrupts IRQ0, and IRQ1 are cleared to 0, or if these interrupts are masked in the CPU.
Exit by RES Input: When the RES input goes low, the clock oscillator starts and clock pulses are
supplied immediately to the entire chip. The RES signal must be held low long enough for the
clock oscillator to stabilize. When RES goes high, the CPU starts reset exception handling.
Exit by STBY Input: Low input at the STBY pin causes a transition to hardware standby mode.
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Section 17 Power-Down State
17.4.3
Selection of Oscillator Waiting Time after Exit from Software Standby Mode
Bits STS2 to STS0 in SYSCR, and its DIV1 and DIV0 in DIVCR should be set as follows.
Crystal Resonator
Set STS2 to STS0, and DIV1 and DIV0 so that the waiting time (for the clock to stabilize) is at
least 7 ms. Table 17.3 indicates the waiting times that are selected by STS2 to STS0, and DIV1
and DIV0 settings at various system clock frequencies.
External Clock
Any value may be set.
Table 17.3 Clock Frequency and Waiting Time for Clock to Settle
DIV1
DIV0
STS2
STS1
STS0
Waiting
Time
18 MHz
16 MHz
12 MHz
10 MHz
8 MHz
6 MHz
4 MHz
2 MHz
1 MHz
Unit
0
0
0
0
0
0
0
1
8192 states
16384 states
0.46
0.91
0.51
1.0
0.65
1.3
0.8
1.6
1.0
2.0
1.3
2.7
2.0
4.1
4.1
8.2
8.2
16.4
ms
0
0
1
1
0
1
32768 states
65536 states
1.8
3.6
2.0
4.1
2.7
5.5
3.3
6.6
4.1
8.2
5.5
10.9
8.2
16.4
16.4
32.8
32.8
65.5
1
0
0
131072 states
7.3
8.2
10.9
13.1
16.4
21.8
32.8
65.5
131.1
1
1
0
1
1
—
1024 states
0.057
0.064
0.085
0.10
0.13
0.17
0.26
0.51
1.0
0
0
0
Illegal setting
8192 states
0.91
1.02
1.4
1.6
2.0
2.7
4.1
8.2
16.4
0
0
1
16384 states
1.8
2.0
2.7
3.3
4.1
5.5
8.2
16.4
32.8
0
1
0
32768 states
3.6
4.1
5.5
6.6
8.2
10.9
16.4
32.8
65.5
0
1
1
65536 states
7.3
8.2
10.9
13.1
16.4
21.8
32.8
65.5
131.1
1
0
0
131072 states
14.6
16.4
21.8
26.2
32.8
43.7
65.5
131.1
262.1
1
1
0
1
1
—
1024 states
Illegal setting
0.11
0.13
0.17
0.20
0.26
0.34
0.51
1.0
2.0
0
0
0
8192 states
1.8
2.0
2.7
3.3
4.1
5.5
8.2
16.4
32.8
0
0
0
1
1
0
16384 states
32768 states
3.6
7.3
4.1
8.2
5.5
10.9
6.6
13.1
8.2
16.4
10.9
21.8
16.4
32.8
32.8
65.5
65.5
131.1
0
1
1
65536 states
14.6
16.4
21.8
26.2
32.8
43.7
65.5
131.1
262.1
1
0
0
131072 states
29.1
32.8
43.7
52.4
65.5
87.4
131.1
262.1
524.3
1
1
0
1
1
—
1024 states
Illegal setting
0.23
0.26
0.34
0.41
0.51
0.68
1.02
2.0
4.1
0
0
0
8192 states
3.6
4.1
5.5
6.6
8.2
10.9
16.4
32.8
65.5
0
0
1
16384 states
7.3
8.2
10.9
13.1
16.4
21.8
32.8
65.5
131.1
0
1
0
32768 states
14.6
16.4
21.8
26.2
32.8
43.7
65.5
131.1
262.1
0
1
1
65536 states
29.1
32.8
43.7
52.4
65.5
87.4
131.1
262.1
524.3
1
1
0
0
0
1
58.3
0.46
65.5
0.51
87.4
0.68
104.9
0.82
131.1
1.0
174.8
1.4
262.1
2.0
524.3
4.1
1048.6
8.2
1
1
—
131072 states
1024 states
Illegal setting
0
1
1
1
0
1
ms
ms
ms
: Recommended setting
Rev.3.00 Mar. 26, 2007 Page 515 of 682
REJ09B0353-0300
Section 17 Power-Down State
17.4.4
Sample Application of Software Standby Mode
Figure 17.1 shows an example in which software standby mode is entered at the fall of NMI and
exited at the rise of NMI.
With the NMI edge select bit (NMIEG) cleared to 0 in SYSCR (selecting the falling edge), an
NMI interrupt occurs. Next the NMIEG bit is set to 1 (selecting the rising edge) and the SSBY bit
is set to 1; then the SLEEP instruction is executed to enter software standby mode.
Software standby mode is exited at the next rising edge of the NMI signal.
Clock
oscillator
φ
NMI
NMIEG
SSBY
NMI exception
handling
NMIEG = 1
SSBY = 1
Software standby
mode (powerdown state)
Oscillator
settling time
(t osc2 )
NMI exception
handling
SLEEP
instruction
Figure 17.1 NMI Timing for Software Standby Mode (Example)
17.4.5
Usage Note
The I/O ports retain their existing states in software standby mode. If a port is in the high output
state, its output current is not reduced.
Rev.3.00 Mar. 26, 2007 Page 516 of 682
REJ09B0353-0300
Section 17 Power-Down State
17.5
Hardware Standby Mode
17.5.1
Transition to Hardware Standby Mode
Regardless of its current state, the chip enters hardware standby mode whenever the STBY pin
goes low. Hardware standby mode reduces power consumption drastically by halting all functions
of the CPU and on-chip supporting modules. All modules are reset except the on-chip RAM. As
long as the specified voltage is supplied, on-chip RAM data is retained. I/O ports are placed in the
high-impedance state.
Clear the RAME bit to 0 in SYSCR before STBY goes low to retain on-chip RAM data.
The inputs at the mode pins (MD2 to MD0) should not be changed during hardware standby mode.
17.5.2
Exit from Hardware Standby Mode
Hardware standby mode is exited by inputs at the STBY and RES pins. While RES is low, when
STBY goes high, the clock oscillator starts running. RES should be held low long enough for the
clock oscillator to settle. When RES goes high, reset exception handling begins, followed by a
transition to the program execution state.
Rev.3.00 Mar. 26, 2007 Page 517 of 682
REJ09B0353-0300
Section 17 Power-Down State
17.5.3
Timing for Hardware Standby Mode
Figure 17.2 shows the timing relationships for hardware standby mode. To enter hardware standby
mode, first drive RES low, then drive STBY low. To exit hardware standby mode, first drive
STBY high, wait for the clock to settle, then bring RES from low to high.
Clock
oscillator
RES
STBY
Oscillator
settling time
Reset
exception
handling
Figure 17.2 Hardware Standby Mode Timing
Rev.3.00 Mar. 26, 2007 Page 518 of 682
REJ09B0353-0300
Section 17 Power-Down State
17.6
Module Standby Function
17.6.1
Module Standby Timing
The module standby function can halt several of the on-chip supporting modules (the ITU, SCI0,
SCI1, and A/D converter) independently of the power-down state. This standby function is
controlled by bits MSTOP5 to MSTOP3 and MSTOP0 in MSTCR. When one of these bits is set
to 1, the corresponding on-chip supporting module is placed in standby and halts at the beginning
of the next bus cycle after the MSTCR write cycle.
17.6.2
Read/Write in Module Standby
When an on-chip supporting module is in module standby, read/write access to its registers is
disabled. Read access always results in H'FF data. Write access is ignored.
17.6.3
Usage Notes
When using the module standby function, note the following points.
Cancellation of Interrupt Handling: When an on-chip supporting module is placed in standby
by the module standby function, its registers are initialized, including registers with interrupt
request flags. Consequently, if an interrupt occurs just before the MSTOP bit is set to 1, the
interrupt will not be recognized. The interrupt source will not be held pending.
Pin States: Pins used by an on-chip supporting module lose their module functions when the
module is placed in module standby. What happens after that depends on the particular pin. For
details, see section 7, I/O Ports. Pins that change from the input to the output state require special
care. For example, if SCI1 is placed in module standby, the receive data pin loses its receive data
function and becomes a generic I/O pin. If its data direction bit is set to 1, the pin becomes a data
output pin, and its output may collide with external serial data. Data collisions should be prevented
by clearing the data direction bit to 0 or taking other appropriate action.
Register Resetting: When an on-chip supporting module is halted by the module standby
function, all its registers are initialized. To restart the module, after its MSTOP bit is cleared to 0,
its registers must be set up again. It is not possible to write to the registers while the MSTOP bit is
set to 1.
Rev.3.00 Mar. 26, 2007 Page 519 of 682
REJ09B0353-0300
Section 17 Power-Down State
17.7
System Clock Output Disabling Function
Output of the system clock (φ) can be controlled by the PSTOP bit in MSTCR. When the PSTOP
bit is set to 1, output of the system clock halts and the φ pin is placed in the high-impedance state.
Figure 17.3 shows the timing of the stopping and starting of system clock output. When the
PSTOP bit is cleared to 0, output of the system clock is enabled. Table 17.4 indicates the state of
the φ pin in various operating states.
MSTCR write cycle
(PSTOP = 1)
T1
T2
MSTCR write cycle
(PSTOP = 0)
T3
T1
T2
T3
φ pin
High impedance
Figure 17.3 Starting and Stopping of System Clock Output
Table 17.4 φ Pin State in Various Operating States
Operating State
PSTOP = 0
PSTOP = 1
Hardware standby
High impedance
High impedance
Software standby
Always high
High impedance
Sleep mode
System clock output
High impedance
Normal operation
System clock output
High impedance
Rev.3.00 Mar. 26, 2007 Page 520 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Section 18 Electrical Characteristics
18.1
Electrical Characteristics of Mask ROM Version
18.1.1
Absolute Maximum Ratings
Table 18.1 lists the absolute maximum ratings.
Table 18.1 Absolute Maximum Ratings
Item
Symbol
Value
Unit
Power supply voltage
VCC
–0.3 to +7.0
V
Input voltage (except port 7)*
Vin
–0.3 to VCC +0.3
V
Input voltage (port 7)
Vin
–0.3 to AVCC +0.3
V
Analog power supply voltage
AVCC
–0.3 to +7.0
V
Analog input voltage
VAN
–0.3 to AVCC +0.3
V
Operating temperature
Topr
Regular specifications: –20 to +75
°C
Wide-range specifications: –40 to +85
°C
–55 to +125
°C
Storage temperature
Caution:
Note: *
Tstg
Permanent damage to the chip may result if absolute maximum ratings are exceeded.
12 V must not be applied to any pin, as this will cause permanent damage to the chip.
Rev.3.00 Mar. 26, 2007 Page 521 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.1.2
DC Characteristics
Table 18.2 lists the DC characteristics. Table 18.3 lists the permissible output currents.
Table 18.2 DC Characteristics (1)
1
Conditions: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V* , Ta = –20°C to +75°C
(regular specifications), Ta = –40°C to +85°C (wide-range specifications)
Item
Symbol
Min
Typ
Max
Unit Test Conditions
1.0
—
—
V
—
—
VCC × 0.7
V
VT – VT
0.4
—
—
V
VIH
VCC –0.7
—
VCC +0.3
V
EXTAL
VCC × 0.7
—
VCC +0.3
V
Port 7
2.0
—
AVCC +0.3 V
Ports 1, 2, 3, 5,
6, 9, PB4, PB5,
PB7
2.0
—
VCC +0.3
V
–0.3
—
0.5
V
–0.3
—
0.8
V
VCC –0.5
—
—
V
IOH = –200 µA
3.5
—
—
V
IOH = –1 mA
—
—
0.4
V
IOL = 1.6 mA
Port A,
Schmitt
trigger input
P80 to P81,
voltages
PB0 to PB3
Input high
voltage
Input low
voltage
RES, STBY,
NMI, MD2,
MD1, MD0
RES, STBY,
MD2, MD1, MD0
–
VT
+
VT
+
–
VIL
NMI, EXTAL,
ports 1, 2, 3, 5,
6, 7, 9, PB4,
PB5, PB7
Output high All output pins
voltage
(except RESO)
VOH
Output low
voltage
VOL
All output pins
(except RESO)
Ports 1, 2, 5, B
—
—
1.0
V
IOL = 10 mA
RESO
—
—
0.4
V
IOL = 2.6 mA
Rev.3.00 Mar. 26, 2007 Page 522 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Item
Min
Typ
Max
Unit Test Conditions
STBY, NMI,
|Iin|
RES, MD2, MD1,
MD0
—
—
1.0
µA
Vin = 0.5 to
VCC –0.5 V
Port 7
—
—
1.0
µA
Vin = 0.5 to
AVCC –0.5 V
Three-state Ports 1, 2, 3, 5, |ITSI|
leakage
6, 8 to B
current
RESO
(off state)
—
—
1.0
µA
Vin = 0.5 to
VCC –0.5 V
—
—
10.0
µA
–Ip
50
—
300
µA
Vin = 0 V
Input
NMI, RES
Cin
capacitance All input pins
except NMI and
RES
—
—
50
pF
—
—
20
Vin = 0 V,
f = 1 MHz,
Ta = 25°C
Current
Normal
2
dissipation* operation
—
50
70
mA
f = 18 MHz
—
35
50
—
0.01
5.0
—
—
20.0
—
1.7
2.8
mA
—
0.02
10.0
µA
2.0
—
—
V
Input
leakage
current
Symbol
Input
Ports 2, 5
pull-up MOS
current
ICC
Sleep mode
Standby mode*
Analog
power
supply
current
During A/D
conversion
3
AICC
Idle
RAM standby voltage
VRAM
f = 18 MHz
µA
Ta ≤ 50°C
50°C < Ta
Notes: 1. If the A/D converter is not used, do not leave the AVCC and AVSS pins open.
Connect AVCC to VCC, and connect AVSS to VSS.
2. Current dissipation values are for VIH min = VCC –0.5 V and VIL max = 0.5 V with all
output pins unloaded and the on-chip pull-up transistors in the off state.
3. The values are for VRAM ≤ VCC < 4.5 V, VIH min = VCC × 0.9, and VIL max = 0.3 V.
Rev.3.00 Mar. 26, 2007 Page 523 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Table 18.2 DC Characteristics (2)
1
Conditions: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V* , Ta = –20°C to
+75°C (regular specifications), Ta = –40°C to +85°C (wide-range specifications)
Item
Symbol
Min
Typ
Max
Unit Test Conditions
VCC × 0.2
—
—
V
—
—
VCC × 0.7
V
VCC × 0.04 —
—
V
RES, STBY,
VIH
NMI, MD2, MD1,
MD0
VCC × 0.9
—
VCC +0.3
V
EXTAL
VCC × 0.7
—
VCC +0.3
V
Port 7
VCC × 0.7
—
AVCC +0.3 V
Ports 1, 2, 3, 5,
6, 9, PB4, PB5,
PB7
VCC × 0.7
—
VCC +0.3
V
–0.3
—
VCC × 0.1
V
–0.3
—
VCC × 0.2
V
VCC < 4.0 V
0.8
V
VCC =
4.0 V to 5.5 V
Schmitt
Port A,
trigger input P80 to P81,
voltages
PB0 to PB3
Input high
voltage
Input low
voltage
RES, STBY,
MD2, MD1, MD0
–
VT
+
VT
+
–
VT – VT
VIL
NMI, EXTAL,
ports 1, 2, 3,
5, 6, 7, 9,
PB4, PB5, PB7
Output high All output pins
voltage
(except RESO)
VOH
Output low
voltage
VOL
Input
leakage
current
VCC –0.5
—
—
V
IOH = –200 µA
VCC –1.0
—
—
V
IOH = –1 mA
—
—
0.4
V
IOL = 1.0 mA
Ports 1, 2, 5, B
—
—
1.0
V
VCC ≤ 4 V,
IOL = 5 mA,
4 V < VCC ≤ 5.5 V,
IOL = 10 mA
RESO
—
—
0.4
V
IOL = 1.6 mA
|Iin|
STBY, NMI,
RES, MD2, MD1,
MD0
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Port 7
—
—
1.0
µA
Vin = 0.5 V to
AVCC –0.5 V
All output pins
(except RESO)
Rev.3.00 Mar. 26, 2007 Page 524 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Item
Symbol
Three-state Ports 1, 2, 3, 5, |ITSI|
6, 8, 9, A, B
leakage
current
RESO
(off state)
Min
Typ
Max
Unit Test Conditions
—
—
1.0
µA
—
—
10.0
µA
Vin = 0.5 V to
VCC –0.5 V
Input
Ports 2, 5
pull-up MOS
current
–Ip
10
—
300
µA
VCC =
2.7 V to 5.5 V,
Vin = 0 V
Input
NMI, RES
capacitance
All input pins
except NMI
and RES
Cin
—
—
50
pF
—
—
20
Vin = 0 V,
f = 1 MHz ,
Ta = 25°C
Current
Normal
2
dissipation* operation
ICC*
—
12
33.8
(3.0 V) (5.5 V)
mA
f = 8 MHz
—
8
25.0
(3.0 V) (5.5 V)
mA
f = 8 MHz
—
0.01
5.0
µA
Ta ≤ 50°C
—
—
20.0
µA
50°C < Ta
—
1.3
2.5
mA
AVCC = 3.0 V
—
1.7
2.8
mA
AVCC = 5.0 V
—
0.02
10.0
µA
2.0
—
—
V
4
Sleep mode
Standby mode*
Analog
power
supply
current
During A/D
conversion
3
AICC
Idle
RAM standby voltage
VRAM
Notes: 1. If the A/D converter is not used, do not leave the AVCC and AVSS pins open.
Connect AVCC to VCC, and connect AVSS to VSS.
2. Current dissipation values are for VIH min = VCC –0.5 V and VIL max = 0.5 V with all
output pins unloaded and the on-chip pull-up MOS transistors in the off state.
3. The values are for VRAM ≤ VCC < 2.7 V, VIH min = VCC × 0.9, and VIL max = 0.3 V.
4. ICC depends on VCC and f as follows:
ICC max = 3.0 (mA) + 0.7 (mA/MHz · V) × VCC × f [normal mode]
ICC max = 3.0 (mA) + 0.5 (mA/MHz · V) × VCC × f [sleep mode]
Rev.3.00 Mar. 26, 2007 Page 525 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Table 18.2 DC Characteristics (3)
1
Conditions: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V* , Ta = –20°C to
+75°C (regular specifications), Ta = –40°C to +85°C (wide-range specifications)
Item
Symbol
Min
Typ
Max
Unit Test Conditions
VCC × 0.2
—
—
V
—
—
VCC × 0.7
V
VCC × 0.04 —
—
V
RES, STBY,
VIH
NMI, MD2, MD1,
MD0
VCC × 0.9
—
VCC +0.3
V
EXTAL
VCC × 0.7
—
VCC +0.3
V
Port 7
VCC × 0.7
—
AVCC +0.3 V
Ports 1, 2, 3, 5,
6, 9, PB4, PB5,
PB7
VCC × 0.7
—
VCC +0.3
V
–0.3
—
VCC × 0.1
V
–0.3
—
VCC × 0.2
V
VCC < 4.0 V
0.8
V
VCC = 4.0 V to
5.5 V
Schmitt
Port A,
trigger input P80 to P81,
voltages
PB0 to PB3
Input high
voltage
Input low
voltage
RES, STBY,
MD2, MD1, MD0
–
VT
+
VT
+
–
VT – VT
VIL
NMI, EXTAL,
ports 1, 2, 3, 5,
6, 7, 9, PB4,
PB5, PB7
Output high All output pins
voltage
(except RESO)
VOH
Output low
voltage
VOL
Input
leakage
current
VCC –0.5
—
—
V
IOH = –200 µA
VCC –1.0
—
—
V
IOH = –1 mA
—
—
0.4
V
IOL = 1.0 mA
Ports 1, 2, 5, B
—
—
1.0
V
VCC ≤ 4 V,
IOL = 5 mA,
4 V < VCC ≤ 5.5 V,
IOL = 10 mA
RESO
—
—
0.4
V
IOL = 1.6 mA
|Iin|
STBY, NMI,
RES, MD2, MD1,
MD0
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Port 7
—
—
1.0
µA
Vin = 0.5 V to
AVCC –0.5 V
All output pins
(except RESO)
Rev.3.00 Mar. 26, 2007 Page 526 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Item
Symbol
Three-state Ports 1, 2, 3, 5, |ITSI|
6, 8 to B
leakage
current
RESO
(off state)
Min
Typ
Max
Unit Test Conditions
—
—
1.0
µA
—
—
10.0
µA
Vin = 0.5 V to
VCC –0.5 V
Input
Ports 2, 5
pull-up MOS
current
–Ip
10
—
300
µA
VCC =
3.0 V to 5.5 V,
Vin = 0 V
Input
NMI, RES
capacitance
All input pins
except NMI
and RES
Cin
—
—
50
pF
—
—
20
Vin = 0 V,
f = 1 MHz,
Ta = 25°C
Current
Normal
2
dissipation* operation
ICC*
—
15
41.5
(3.0 V) (5.5 V)
mA
f = 10 MHz
—
10
30.5
(3.0 V) (5.5 V)
mA
f = 10 MHz
—
0.01
5.0
µA
Ta ≤ 50°C
—
—
20.0
µA
50°C < Ta
—
1.3
2.5
mA
AVCC = 3.0 V
—
1.7
—
mA
AVCC = 5.0 V
—
0.02
10.0
µA
2.0
—
—
V
4
Sleep mode
Standby mode*
Analog
power
supply
current
During A/D
conversion
3
AICC
Idle
RAM standby voltage
VRAM
Notes: 1. If the A/D converter is not used, do not leave the AVCC and AVSS pins open.
Connect AVCC to VCC, and connect AVSS to VSS.
2. Current dissipation values are for VIH min = VCC –0.5 V and VIL max = 0.5 V with all
output pins unloaded and the on-chip pull-up transistors in the off state.
3. The values are for VRAM ≤ VCC < 3.0 V, VIH min = VCC × 0.9, and VIL max = 0.3 V.
4. ICC depends on VCC and f as follows:
ICC max = 3.0 (mA) + 0.7 (mA/MHz · V) × VCC × f [normal mode]
ICC max = 3.0 (mA) + 0.5 (mA/MHz · V) × VCC × f [sleep mode]
Rev.3.00 Mar. 26, 2007 Page 527 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Table 18.3 Permissible Output Currents
Conditions: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, Ta = –20°C to +75°C
(regular specifications), Ta = –40°C to +85°C (wide-range specifications)
Item
Symbol
Min
Typ
Max
Unit
IOL
—
—
10
mA
—
—
2.0
mA
—
—
80
mA
Total of 23 pins, including
ports 8, 9, A and B
—
—
75* /65*
mA
Total of all output pins,
including the above
—
—
120
mA
Permissible output
low current (per pin)
Ports 1, 2, 5 and B
Permissible output
low current (total)
Total of 27 pins including
ports 1, 2, 5 and B
Other output pins
ΣIOL
2
1
Permissible output
high current (per pin)
All output pins
IOH
—
—
2.0
mA
Permissible output
high current (total)
Total of all output pins
ΣIOH
—
—
40
mA
Notes: To protect chip reliability, do not exceed the output current values in table 18.3.
When driving a Darlington pair or LED, always insert a current-limiting resistor in the output
line, as shown in figures 18.1 and 18.2.
1. The value is for conditions: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V
2. The value is for conditions: VCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V
Rev.3.00 Mar. 26, 2007 Page 528 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
LSI
2 kΩ
Port
Darlington pair
Figure 18.1 Darlington Pair Drive Circuit (Example)
LSI
Ports
600 Ω
LED
Figure 18.2 LED Drive Circuit (Example)
Rev.3.00 Mar. 26, 2007 Page 529 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.1.3
AC Characteristics
Bus timing parameters are listed in table 18.4. Control signal timing parameters are listed in table
18.5. Timing parameters of the on-chip supporting modules are listed in table 18.6.
Table 18.4 Bus Timing
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
8 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition C: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
8 MHz
Condition C
10 MHz
18 MHz
Item
Symbol
Min
Max
Min
Max
Min
Max
Unit
Clock cycle time
tcyc
125
500
100
500
55.5
500
ns
Clock low pulse width
tCL
40
—
30
—
17
—
Clock high pulse width
tCH
40
—
30
—
17
—
Clock rise time
tCr
—
20
—
15
—
10
Clock fall time
tCf
—
20
—
15
—
10
Address delay time
tAD
—
60
—
50
—
25
Address hold time
tAH
25
—
20
—
10
—
Address strobe delay time
tASD
—
60
—
40
—
25
Write strobe delay time
tWSD
—
60
—
50
—
25
Strobe delay time
tSD
—
60
—
50
—
25
Write data strobe pulse width 1
tWSW1*
85
—
60
—
32
—
Write data strobe pulse width 2
tWSW2*
150
—
110
—
62
—
Address setup time 1
tAS1
20
—
15
—
10
—
Address setup time 2
tAS2
80
—
65
—
38
—
Read data setup time
tRDS
50
—
35
—
15
—
Read data hold time
tRDH
0
—
0
—
0
—
Rev.3.00 Mar. 26, 2007 Page 530 of 682
REJ09B0353-0300
Test
Conditions
Figure 18.7,
Figure 18.8
Section 18 Electrical Characteristics
Condition A
Condition B
Condition C
8 MHz
10 MHz
18 MHz
Item
Symbol
Min
Max
Min
Max
Min
Max
Unit
Write data delay time
tWDD
—
75
—
75
—
55
ns
Write data setup time 1
tWDS1
60
—
40
—
10
—
Write data setup time 2
tWDS2
5
—
–10
—
–10
—
Write data hold time
tWDH
25
—
20
—
20
—
Read data access time 1
tACC1*
—
120
—
100
—
50
Read data access time 2
tACC2*
—
240
—
200
—
105
Read data access time 3
tACC3*
—
70
—
50
—
20
Read data access time 4
tACC4*
—
180
—
150
—
80
Precharge time
tPCH*
85
—
60
—
40
—
Wait setup time
tWTS
40
—
40
—
25
—
Wait hold time
tWTH
10
—
10
—
5
—
Test
Conditions
Figure 18.7,
Figure 18.8
Figure 18.9
Note: * For Condition A, the following times depend on the clock cycle time as shown below.
tACC1 = 1.5 × tcyc –68 (ns)
tWSW1 = 1.0 × tcyc –40 (ns)
tACC2 = 2.5 × tcyc –73 (ns)
tWSW2 = 1.5 × tcyc –38 (ns)
tACC3 = 1.0 × tcyc –55 (ns)
tPCH = 1.0 × tcyc –40 (ns)
tACC4 = 2.0 × tcyc –70 (ns)
For Condition B, the following times depend on the clock cycle time as shown below.
tACC1 = 1.5 × tcyc –50 (ns)
tWSW1 = 1.0 × tcyc –40 (ns)
tACC2 = 2.5 × tcyc –50 (ns)
tWSW2 = 1.5 × tcyc –40 (ns)
tACC3 = 1.0 × tcyc –50 (ns)
tPCH = 1.0 × tcyc –40 (ns)
tACC4 = 2.0 × tcyc –50 (ns)
For Condition C, the following times depend on the clock cycle time as shown below.
tACC1 = 1.5 × tcyc –34 (ns)
tWSW1 = 1.0 × tcyc –24 (ns)
tACC2 = 2.5 × tcyc –34 (ns)
tWSW2 = 1.5 × tcyc –22 (ns)
tACC3 = 1.0 × tcyc –36 (ns)
tPCH = 1.0 × tcyc –21 (ns)
tACC4 = 2.0 × tcyc –31 (ns)
Rev.3.00 Mar. 26, 2007 Page 531 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Table 18.5 Control Signal Timing
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
8 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition C: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
Condition C
8 MHz
10 MHz
18 MHz
Item
Symbol
Min
Max
Min
Max
Min
Max
Unit
Test Conditions
RES setup time
tRESS
200
—
200
—
200
—
ns
Figure 18.10
RES pulse width
tRESW
10
—
10
—
10
—
tcyc
Mode programming
tMDS
setup time (MD0, MD1,
MD2)
200
—
200
—
200
—
ns
RESO output delay
time
tRESD
—
100
—
100
—
100
ns
RESO output pulse
width
tRESOW
132
—
132
—
132
—
tcyc
NMI setup time
(NMI, IRQ0, IRQ1,
IRQ4, IRQ5)
tNMIS
200
—
200
—
150
—
ns
Figure 18.12
NMI hold time
(NMI, IRQ0, IRQ1,
IRQ4, IRQ5)
tNMIH
10
—
10
—
10
—
Interrupt pulse width
tNMIW
(NMI, IRQ1, IRQ0
when exiting software
standby mode)
200
—
200
—
200
—
Clock oscillator
settling time at reset
(crystal)
tOSC1
20
—
20
—
20
—
ms
Figure 18.13
Clock oscillator
settling time in
software standby
(crystal)
tOSC2
8
—
8
—
7
—
ms
Figure 17.1
Rev.3.00 Mar. 26, 2007 Page 532 of 682
REJ09B0353-0300
Figure 18.11
Section 18 Electrical Characteristics
Table 18.6 Timing of On-Chip Supporting Modules
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
8 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition C: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
SCI
Condition B
Condition C
8 MHz
10 MHz
18 MHz
Symbol
Min
Max
Min
Max
Min
Max
Unit
Test
Conditions
Timer output delay
time
tTOCD
—
100
—
100
—
100
ns
Figure 18.15
Timer input setup
time
tTICS
50
—
50
—
50
—
Timer clock input
setup time
tTCKS
50
—
50
—
50
—
Timer
clock
pulse
width
Single
edge
tTCKWH
1.5
—
1.5
—
1.5
—
Both
edges
tTCKWL
2.5
—
2.5
—
2.5
—
Input
clock
cycle
Asynchronous
tScyc
4
—
4
—
4
—
6
—
6
—
6
—
Input clock rise time tSCKr
—
1.5
—
1.5
—
1.5
Input clock fall time
tSCKf
—
1.5
—
1.5
—
1.5
Input clock pulse
width
tSCKW
0.4
0.6
0.4
0.6
0.4
0.6
Item
ITU
Condition A
Synchronous
Figure 18.16
tcyc
Figure 18.17
tScyc
Rev.3.00 Mar. 26, 2007 Page 533 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Condition C
10 MHz
18 MHz
Max
Min
Max
Min
Max
Unit
Test
Conditions
Transmit data delay tTXD
time
—
100
—
100
—
100
ns
Figure 18.18
Receive data setup
time (synchronous)
tRXS
100
—
100
—
100
—
Receive data hold
time (synchronous
clock input)
tRXH
100
—
100
—
100
—
0
—
0
—
0
—
tPWD
—
100
—
100
—
100
ns
Figure 18.14
Input data setup time tPRS
50
—
50
—
50
—
Input data hold time tPRH
50
—
50
—
50
—
Symbol
Receive data hold
time (synchronous
clock output)
Ports
and
TPC
Condition B
8 MHz
Min
Item
SCI
Condition A
Output data delay
time
5V
C = 90 pF: ports 1, 2, 3, 5, 6, 8, φ
RL
C = 30 pF: ports 9, A, B
This LSI
output pin
R L = 2.4 kΩ
R H = 12 kΩ
C
RH
Input/output timing measurement levels
• Low: 0.8 V
• High: 2.0 V
Figure 18.3 Output Load Circuit
Rev.3.00 Mar. 26, 2007 Page 534 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.1.4
A/D Conversion Characteristics
Table 18.7 lists the A/D conversion characteristics.
Table 18.7 A/D Converter Characteristics
Condition A: VCC = 2.7 V to 5.5 V, AVCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
8 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition C: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
Condition C
8 MHz
10 MHz
18 MHz
Item
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
Resolution
10
10
10
10
10
10
10
10
10
bits
Conversion time
—
—
16.8
—
—
13.4
—
—
7.5
µs
Analog input
capacitance
—
—
20
—
—
20
—
—
20
pF
Permissible signalsource impedance
—
—
10*1
—
—
10*1
—
—
10*4
kΩ
—
—
5*
—
—
5*5
Nonlinearity error
—
—
Offset error
—
—
Full-scale error
—
Quantization error
Absolute accuracy
Notes: 1.
2.
3.
4.
5.
2
3
—
—
5*
±7.5
—
—
±7.5
—
—
±3.5
LSB
±7.5
—
—
±7.5
—
—
±3.5
LSB
—
±7.5
—
—
±7.5
—
—
±3.5
LSB
—
—
±0.5
—
—
±0.5
—
—
±0.5
LSB
—
—
±8.0
—
—
±8.0
—
—
±4.0
LSB
The value is for 4.0 V ≤ AVCC ≤ 5.5 V.
The value is for 2.7 V ≤ AVCC < 4.0 V.
The value is for 3.0 V ≤ AVCC < 4.0 V.
The value is for φ ≤ 12 MHz.
The value is for φ > 12 MHz.
Rev.3.00 Mar. 26, 2007 Page 535 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.2
Electrical Characteristics of Flash Memory Version
18.2.1
Absolute Maximum Ratings
Table 18.8 lists the absolute maximum ratings.
Table 18.8 Absolute Maximum Ratings
Item
Symbol
Value
Unit
VCC
–0.3 to +7.0
V
Vin
–0.3 to VCC +0.3
V
Input voltage (port 7)
Vin
–0.3 to AVCC +0.3
V
Analog power supply voltage
AVCC
–0.3 to +7.0
V
Analog input voltage
VAN
–0.3 to AVCC +0.3
V
Operating temperature
Topr
Regular specifications: –20 to +75*2
Power supply voltage
Input voltage (except port 7)*
1
Wide-range specifications: –40 to +85*
Storage temperature
Tstg
–55 to +125
°C
2
°C
°C
Caution: Permanent damage to the chip may result if absolute maximum ratings are exceeded.
Notes: 1. 12 V must not be applied to any pin, as this will cause permanent damage to the chip.
2. The operating temperature range when programming/erasing flash memory is Ta = 0 to
+75°C (regular specifications) or Ta = 0 to +85°C (wide-range specifications).
Rev.3.00 Mar. 26, 2007 Page 536 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.2.2
DC Characteristics
Table 18.9 lists the DC characteristics. Table 18.10 lists the permissible output currents.
Table 18.9 DC Characteristics (1)
1
Conditions: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V* , Ta = –20°C to +75°C
(regular specifications), Ta = –40°C to +85°C (wide-range specifications)
(Programming/Erasing Conditions: Ta = 0°C to +75°C (regular specifications),
Ta = 0°C to +85°C (wide-range specifications))
Item
Symbol
Schmitt
Port A,
trigger input P80 to P81,
PB0 to PB3
voltages
Input high
voltage
Input low
voltage
–
VT
+
VT
+
–
VT – VT
Min
Typ
Max
Unit Test Conditions
1.0
—
—
V
—
—
VCC × 0.7
V
0.4
—
—
V
RES, STBY,
VIH
NMI, MD2, MD1,
MD0, FWE
VCC –0.7
—
VCC +0.3
V
EXTAL
VCC × 0.7
—
VCC +0.3
V
Port 7
2.0
—
AVCC +0.3 V
Ports 1, 2, 3,
5, 6, 9,
PB4, PB5, PB7
2.0
—
VCC +0.3
V
RES, STBY,
VIL
MD2, MD1, MD0,
FWE
–0.3
—
0.5
V
NMI, EXTAL,
ports 1, 2, 3,
5, 6, 7, 9,
PB4, PB5, PB7
–0.3
—
0.8
V
VCC –0.5
—
—
V
IOH = –200 µA
3.5
—
—
V
IOH = –1 mA
—
—
0.4
V
IOL = 1.6 mA
—
—
1.0
V
IOL = 10 mA
Output high All output pins
voltage
VOH
Output low
voltage
VOL
All output pins
Ports 1, 2, 5, B
Rev.3.00 Mar. 26, 2007 Page 537 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Item
Input
leakage
current
Symbol
Min
Typ
Max
Unit Test Conditions
STBY, NMI,
|Iin|
RES, MD2, MD1,
MD0
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Port 7
—
—
1.0
µA
Vin = 0.5 V to
AVCC –0.5 V
FWE
—
—
10
Three-state Ports 1, 2, 3,
leakage
5, 6, 8, 9, A, B
current
(off state)
|ITSI|
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Input
pull-up
current
–Ip
50
—
300
µA
Vin = 0 V
Input
NMI, RES
capacitance All input pins
except NMI
and RES
Cin
—
—
50
pF
—
—
20
Vin = 0 V,
f = 1 MHz,
Ta = 25°C
Current
dissipation
2
4
* *
ICC
—
50
70
mA
f = 18 MHz
—
35
50
—
0.01
5.0
—
—
20.0
—
1.7
2.8
mA
—
0.02
10.0
µA
2.0
—
—
V
Ports 2, 5
Normal
operation
Sleep mode
Standby mode*
Analog
power
supply
current
During A/D
conversion
3
AICC
Idle
RAM standby voltage
VRAM
f = 18 MHz
µA
Ta ≤ 50°C
50°C < Ta
Notes: 1. If the A/D converter is not used, do not leave the AVCC and AVSS pins open.
Connect AVCC to VCC, and connect AVSS to VSS.
2. Current dissipation values are for VIH min = VCC –0.5 V and VIL max = 0.5 V with all
output pins unloaded and the on-chip pull-up transistors in the off state.
3. The values are for VRAM ≤ VCC < 4.5 V, VIH min = VCC × 0.9, and VIL max = 0.3 V.
4. Power supply current value when programming/erasing in flash memory (Ta = 0°C to
+75°C (regular specifications), Ta = 0°C to +85°C (wide-range specifications)) is 20 mA
(max) higher than the power supply current value in normal operation.
Rev.3.00 Mar. 26, 2007 Page 538 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Table 18.9 DC Characteristics (2)
1
Conditions: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V* , Ta = –20°C to
+75°C (regular specifications), Ta = –40°C to +85°C (wide-range specifications)
(Programming/Erasing Conditions: VCC = 3.0 V to 3.6 V, Ta = 0°C to +75°C (regular
specifications), Ta = 0°C to +85°C (wide-range specifications))
Item
Symbol
Schmitt
Port A,
trigger input P80 to P81,
PB0 to PB3
voltages
Input high
voltage
Input low
voltage
–
VT
+
VT
Min
Typ
Max
Unit Test Conditions
VCC × 0.2
—
—
V
—
—
VCC × 0.7
V
VT – VT
VCC × 0.04 —
—
V
VIH
VCC × 0.9
—
VCC +0.3
V
EXTAL
VCC × 0.7
—
VCC +0.3
V
Port 7
VCC × 0.7
—
AVCC +0.3 V
Ports 1 to 3, 5, 6,
9, PB4, PB5, PB7
VCC × 0.7
—
VCC +0.3
V
–0.3
—
VCC × 0.1
V
–0.3
—
VCC × 0.2
V
RES, STBY,
NMI, MD2 to
MD0, FWE
RES, STBY,
FWE, MD2 to
MD0, FWE
+
VIL
NMI, EXTAL,
ports 1 to 3,
5 to 7, 9, PB4,
PB5, PB7
0.8
Output high All output pins
voltage
VOH
Output low
voltage
VOL
All output pins
Ports 1, 2, 5, B
–
VCC < 4.0 V
VCC = 4.0 V to
5.5V
VCC –0.5
—
—
V
IOH = –200 µA
VCC –1.0
—
—
V
IOH = –1 mA
—
—
0.4
V
IOL = 1.0 mA
—
—
1.0
V
VCC ≤ 4 V,
IOL = 5 mA,
4V < VCC ≤ 5.5 V,
IOL = 10 mA
Rev.3.00 Mar. 26, 2007 Page 539 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
Item
Symbol
Min
Typ
Max
Unit Test Conditions
|Iin|
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Port 7
—
—
1.0
µA
Vin = 0.5 V to
AVCC –0.5 V
FWE
—
—
10
µA
Vin = 0.5 V to
VCC –0.5 V
Three-state Ports 1, 2, 3, 5, |ITSI|
leakage
6, 8 to B
current
(off state)
—
—
1.0
µA
Vin = 0.5 V to
VCC –0.5 V
Input pull-up Ports 2 and 5
current
–Ip
10
—
300
µA
VCC = 3.0 V to
5.5 V,
Vin = 0 V
Input
NMI, RES
capacitance
All input pins
except NMI
and RES
Cin
—
—
50
pF
—
—
20
pF
Vin = 0 V,
f = 1 MHz,
Ta = 25°C
Current
dissipation
2 5
* *
ICC *
—
15
(3.0 V)
41.5
(5.5 V)
mA
f = 10 MHz
—
10
(3.0 V)
30.5
(5.5 V)
mA
f = 10 MHz
—
0.01
5.0
µA
Ta ≤ 50°C
—
—
20.0
—
1.3
2.5
mA
AVCC = 3.0 V
—
1.7
2.8
—
0.02
10.0
µA
2.0
—
—
V
Input
leakage
current
STBY, NMI,
RES, MD2,
MD1, MD0
Normal
operation
Sleep mode
Standby mode*
Analog
power
supply
current
4
During A/D
conversion
3
AICC
Idel
RAM standby voltage
VRAM
50°C < Ta
AVCC = 5.0 V
Notes: 1. If the A/D converter is not used, do not leave the AVCC and AVSS pins open.
Connect AVCC to VCC, and connect AVSS to VSS.
2. Current dissipation values are for VIH min = VCC –0.5 V and VIL max = 0.5 V with all
output pins unloaded and the on-chip pull-up transistors in the off state.
3. The values are for VRAM ≤ VCC < 3.0 V, VIH min = VCC × 0.9, and VIL max = 0.3 V.
4. ICC depends on VCC and f as follows:
ICC max = 3.0 (mA) + 0.7 (mA/MHz ⋅ V) × VCC × f [normal mode]
ICC max = 3.0 (mA) + 0.5 (mA/MHz ⋅ V) × VCC × f [sleep mode]
5. The current dissipation value when programming/erasing flash memory (Ta = 0°C to
+75°C (regular specifications), Ta = 0°C to +85°C (wide-range specifications)) is 20 mA
(max) higher than the current dissipation value in normal operation.
Rev.3.00 Mar. 26, 2007 Page 540 of 682
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Section 18 Electrical Characteristics
Table 18.10 Permissible Output Currents
Conditions: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, Ta = –20°C to +75°C
(regular specifications), Ta = –40°C to +85°C (wide-range specifications)
Item
Permissible output
low current (per pin)
Symbol
Min
Typ
Max
Unit
IOL
—
—
10
mA
—
—
2.0
mA
—
—
80
mA
Total of 23 pins,
including ports 8, 9, A
and B
—
—
75* /
1
65*
mA
Total of all output pins,
including the above
—
—
120
mA
Ports 1, 2, 5 and B
Other output pins
Permissible output
low current (total)
Total of 27 pins
including ports 1, 2, 5
and B
ΣIOL
2
Permissible output
high current (per pin)
All output pins
IOH
—
—
2.0
mA
Permissible output
high current (total)
Total of all output pins
ΣIOH
—
—
40
mA
Notes: To protect chip reliability, do not exceed the output current values in table 18.10.
When driving a Darlington pair or LED, always insert a current-limiting resistor in the output
line, as shown in figures 18.4 and 18.5.
1. Conditions: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V
2. Conditions: VCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V
Rev.3.00 Mar. 26, 2007 Page 541 of 682
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Section 18 Electrical Characteristics
LSI
2 kΩ
Port
Darlington pair
Figure 18.4 Darlington Pair Drive Circuit (Example)
LSI
Ports
600 Ω
LED
Figure 18.5 LED Drive Circuit (Example)
Rev.3.00 Mar. 26, 2007 Page 542 of 682
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Section 18 Electrical Characteristics
18.2.3
AC Characteristics
Bus timing parameters are listed in table 18.11. Control signal timing parameters are listed in table
18.12. Timing parameters of the on-chip supporting modules are listed in table 18.13.
Table 18.11 Bus Timing
Condition A: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 to 10 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition B: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
10 MHz
18 MHz
Item
Symbol
Min
Max
Min
Max
Unit
Clock cycle time
tcyc
100
500
55.5
500
ns
Clock low pulse width
tCL
30
—
17
—
Clock high pulse width
tCH
30
—
17
—
Clock rise time
tCr
—
15
—
10
Clock fall time
tCf
—
15
—
10
Address delay time
tAD
—
50
—
25
Address hold time
tAH
20
—
10
—
Address strobe delay time
tASD
—
40
—
25
Write strobe delay time
tWSD
—
50
—
25
Strobe delay time
tSD
—
50
—
25
Write data strobe pulse width 1
tWSW1*
60
—
32
—
Write data strobe pulse width 2
tWSW2*
110
—
62
—
Address setup time 1
tAS1
15
—
10
—
Address setup time 2
tAS2
65
—
38
—
Read data setup time
tRDS
35
—
15
—
Read data hold time
tRDH
0
—
0
—
Test
Conditions
Figure 18.7,
Figure 18.8
Rev.3.00 Mar. 26, 2007 Page 543 of 682
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Section 18 Electrical Characteristics
Condition A
Condition B
10 MHz
18 MHz
Test
Conditions
Item
Symbol
Min
Max
Min
Max
Unit
Write data delay time
tWDD
—
75
—
55
ns
Write data setup time 1
tWDS1
40
—
10
—
Figure 18.7,
Figure 18.8
Write data setup time 2
tWDS2
–10
—
–10
—
Write data hold time
tWDH
20
—
20
—
Read data access time 1
tACC1*
—
100
—
50
Read data access time 2
tACC2*
—
200
—
105
Read data access time 3
tACC3*
—
50
—
20
Read data access time 4
tACC4*
—
150
—
80
Precharge time
tPCH*
60
—
40
—
Wait setup time
tWTS
40
—
25
—
ns
Figure 18.9
Wait hold time
tWTH
10
—
5
—
Note:
*
For condition A, the following times depend on the clock cycle time as shown below.
tWSW1 = 1.0 × tcyc –40 (ns)
tACC1 = 1.5 × tcyc –50 (ns)
tWSW2 = 1.5 × tcyc –40 (ns)
tACC2 = 2.5 × tcyc –50 (ns)
tACC3 = 1.0 × tcyc –50 (ns)
tPCH = 1.0 × tcyc –40 (ns)
tACC4 = 2.0 × tcyc –50 (ns)
For condition B, the following times depend on the clock cycle time as shown below.
tWSW1 = 1.0 × tcyc –24 (ns)
tACC1 = 1.5 × tcyc –34 (ns)
tACC2 = 2.5 × tcyc –34 (ns)
tWSW2 = 1.5 × tcyc –22 (ns)
tPCH = 1.0 × tcyc –21 (ns)
tACC3 = 1.0 × tcyc –36 (ns)
tACC4 = 2.0 × tcyc –31 (ns)
Rev.3.00 Mar. 26, 2007 Page 544 of 682
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Section 18 Electrical Characteristics
Table 18.12 Control Signal Timing
Condition A: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 to 10 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition B: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
10 MHz
18 MHz
Item
Symbol
Min
Max
Min
Max
Unit
Test
Conditions
RES setup time
tRESS
200
—
200
—
ns
Figure 18.10
RES pulse width
tRESW
20
—
20
—
tcyc
Mode programming setup time
tMDS
200
—
200
—
ns
NMI setup time
(NMI, IRQ0, IRQ1, IRQ4, IRQ5)
tNMIS
200
—
150
—
ns
Figure 18.12
NMI hold time
(NMI, IRQ0, IRQ1, IRQ4, IRQ5)
tNMIH
10
—
10
—
Interrupt pulse width
(NMI, IRQ1, IRQ0 when exiting
software standby mode)
tNMIW
200
—
200
—
Clock oscillator settling time at
reset (crystal)
tOSC1
20
—
20
—
ms
Figure 18.13
Clock oscillator settling time in
software standby (crystal)
tOSC2
8
—
7
—
ms
Figure 17.1
Rev.3.00 Mar. 26, 2007 Page 545 of 682
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Section 18 Electrical Characteristics
Table 18.13 Timing of On-Chip Supporting Modules
Condition A: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
SCI
Condition B
10 MHz
18 MHz
Symbol
Min
Max
Min
Max
Unit
Test
Conditions
Timer output delay time
tTOCD
—
100
—
100
ns
Figure 18.15
Timer input setup time
tTICS
50
—
50
—
Timer clock input setup
time
tTCKS
50
—
50
—
Timer clock
pulse width
Single
edge
tTCKWH
1.5
—
1.5
—
Both
edges
tTCKWL
2.5
—
2.5
—
Asynchronous
tScyc
4
—
4
—
6
—
6
—
1.5
—
1.5
Item
ITU
Condition A
Input clock
cycle
Synchronous
Figure 18.16
tcyc
Figure 18.17
Input clock rise time
tSCKr
—
Input clock fall time
tSCKf
—
1.5
—
1.5
Input clock pulse width
tSCKW
0.4
0.6
0.4
0.6
tScyc
Transmit data delay time
tTXD
—
100
—
100
ns
Receive data setup time
(synchronous)
tRXS
100
—
100
—
Receive data hold time
(synchronous clock
input)
tRXH
100
—
100
—
0
—
0
—
Receive data hold time
(synchronous clock
output)
Rev.3.00 Mar. 26, 2007 Page 546 of 682
REJ09B0353-0300
Figure 18.18
Section 18 Electrical Characteristics
Condition B
10 MHz
18 MHz
Symbol
Min
Max
Min
Max
Unit
Test
Conditions
Output data delay time
tPWD
—
100
—
100
ns
Figure 18.14
Input data setup time
tPRS
50
—
50
—
Input data hold time
tPRH
50
—
50
—
Item
Ports
and
TPC
Condition A
5V
C = 90 pF: ports 1, 2, 3, 5, 6, 8, φ
RL
This LSI
output pin
C = 30 pF: ports 9, A, B
R L = 2.4 kΩ
R H = 12 kΩ
C
RH
Input/output timing measurement levels
• Low: 0.8 V
• High: 2.0 V
Figure 18.6 Output Load Circuit
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Section 18 Electrical Characteristics
18.2.4
A/D Conversion Characteristics
Table 18.14 lists the A/D conversion characteristics.
Table 18.14 A/D Converter Characteristics
Condition A: VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, VSS = AVSS = 0 V, φ = 2 MHz to
10 MHz, Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (widerange specifications)
Condition B: VCC = 5.0 V ±10%, AVCC = 5.0 V ±10%, VSS = AVSS = 0 V, φ = 2 MHz to 18 MHz,
Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range
specifications)
Condition A
Condition B
10 MHz
18 MHz
Item
Min
Typ
Max
Min
Typ
Max
Unit
Resolution
10
10
10
10
10
10
bits
Conversion time
—
—
13.4
—
—
7.5
µs
—
—
20
—
—
10*
Analog input capacitance
—
—
20
Permissible signalsource impedance
—
—
5*
Nonlinearity error
—
—
Offset error
—
Full-scale error
1
pF
2
kΩ
3
—
—
5*
±7.5
—
—
±3.5
LSB
—
±7.5
—
—
±3.5
LSB
—
—
±7.5
—
—
±3.5
LSB
Quantization error
—
—
±0.5
—
—
±0.5
LSB
Absolute accuracy
—
—
±8.0
—
—
±4.0
LSB
Notes: 1. The value is for φ = 10 MHz.
2. The value is for φ ≤ 12 MHz.
3. The value is for φ > 12 MHz.
Rev.3.00 Mar. 26, 2007 Page 548 of 682
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Section 18 Electrical Characteristics
18.2.5
Flash Memory Characteristics
Table 18.15 shows the flash memory characteristics.
Table 18.15 Flash Memory Characteristics (1)
Conditions: VCC = 4.5 V to 5.5 V, AVCC = 4.5 V to 5.5 V, VSS = AVSS = 0 V
Ta = 0°C to +75°C (program/erase operating temperature range: regular
specifications), Ta = 0°C to +85°C (program/erase operating temperature range:
wide-range specifications)
Item
Symbol
Min
Typ
Programming time*1 *2 *4
tP
—
10
200
ms/32 bytes
Erase time*1 *3 *5
tE
—
100
300
ms/block
NWEC
—
—
100
Times
x
10
—
—
µs
y
50
—
—
µs
z
150
—
500
µs
Reprogramming count
Programming Wait time after SWE bit setting*
Wait time after PSU bit setting*
1
Wait time after P bit setting* *
Wait time after P bit clear*
1
1
4
α
10
—
—
µs
β
10
—
—
µs
1
γ
4
—
—
µs
ε
2
—
—
µs
η
4
—
—
µs
N
—
—
403
Times
x
10
—
—
µs
y
200
—
—
µs
z
5
—
10
ms
Wait time after PV bit setting*
Wait time after H'FF dummy write*1
Wait time after PV bit clear*
1
1
Maximum programming count* *
Erase
Unit
1
1
Wait time after PSU bit clear*
Max
Wait time after SWE bit setting*
Wait time after ESU bit setting*
1
Wait time after E bit setting* *
4
1
1
5
α
10
—
—
µs
1
β
10
—
—
µs
Wait time after EV bit setting*1
γ
20
—
—
µs
ε
2
—
—
µs
η
5
—
—
µs
N
30
—
60
Times
Wait time after E bit clear*
1
Wait time after ESU bit clear*
Wait time after H'FF dummy write*
Wait time after EV bit clear*
1
Maximum erase count* *
5
1
1
Test
condition
Notes: 1. Set the times according to the program/erase algorithms.
2. Programming time per 32 bytes (Shows the total time the flash memory control register
(FLMCR) is set. It does not include the programming verification time.)
Rev.3.00 Mar. 26, 2007 Page 549 of 682
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Section 18 Electrical Characteristics
3. Block erase time (Shows the period the E bit in FLMCR is set. It does not include the
erase verification time.)
4. To specify the maximum programming time (tP(max)) in the 32-byte programming
flowchart, set the max value (403) for the maximum programming count (N).
The wait time after P bit setting (z) should be changed as follows according to the
programming counter value.
Programming counter value of 1 to 4:
z = 150 µs
Programming counter value of 5 to 403: z = 500 µs
5. For the maximum erase time (tE(max)), the following relationship applies between the
wait time after E bit setting (z) and the maximum erase count (N):
tE(max) = Wait time after E bit setting (z) × maximum erase count (N)
To set the maximum erase time, the values of z and N should be set so as to satisfy the
above formula.
Examples: When z = 5 [ms]: N = 60 times
When z = 10 [ms]: N = 30 times
Rev.3.00 Mar. 26, 2007 Page 550 of 682
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Section 18 Electrical Characteristics
Table 18.15 Flash Memory Characteristics (2)
Conditions: VCC = 3.0 V to 3.6 V, AVCC = 3.0 V to 3.6 V, VSS = AVSS = 0 V
Ta = 0°C to +75°C (Programming/erasing operating temperature range: regular
specification) Ta = 0°C to +85°C (Programming/erasing operating temperature range:
wide-range specification)
Item
Symbol
Min
Typ
Programming time*1 *2 *4
tP
—
10
200
ms/32 bytes
Erase time*1 *3 *5
tE
—
100
300
ms/block
NWEC
—
—
100
Times
x
10
—
—
µs
y
50
—
—
µs
z
150
—
500
µs
Reprogramming count
Programming Wait time after SWE bit setting*
Wait time after PSU bit setting*
1
Wait time after P bit setting* *
Wait time after P bit clear*
1
1
4
α
10
—
—
µs
β
10
—
—
µs
1
γ
4
—
—
µs
ε
2
—
—
µs
η
4
—
—
µs
N
—
—
403
Times
x
10
—
—
µs
y
200
—
—
µs
z
5
—
10
ms
Wait time after PV bit setting*
Wait time after H'FF dummy write*1
Wait time after PV bit clear*
1
1,
Maximum programming count* *
Erase
Unit
1
1
Wait time after PSU bit clear*
Max
Wait time after SWE bit setting*
Wait time after ESU bit setting*
1
Wait time after E bit setting* *
4
1
1
5
α
10
—
—
µs
1
β
10
—
—
µs
Wait time after EV bit setting*1
γ
20
—
—
µs
ε
2
—
—
µs
η
5
—
—
µs
N
30
—
60
Times
Wait time after E bit clear*
1
Wait time after ESU bit clear*
Wait time after H'FF dummy write*
Wait time after EV bit clear*
1
Maximum erase count* *
5
1
1
Test
condition
Notes: 1. Make each time setting in accordance with the program/program-verify flowchart or
erase/erase-verify flowchart.
2. Programming time per 32 bytes (Shows the total period for which the P-bit in the flash
memory control register (FLMCR) is set. It does not include the programming
verification time.)
3. Block erase time (Shows the total period for which the E-bit in FLMCR is set. It does not
include the erase verification time.)
Rev.3.00 Mar. 26, 2007 Page 551 of 682
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Section 18 Electrical Characteristics
4. To specify the maximum programming time (tP(max)) in the 32-byte programming
flowchart, set the maximum value (403) for the maximum programming count (N).
The wait time after P bit setting (z) should be changed as follows according to the
programming counter value.
Programming counter value of 1 to 4:
z = 150 µs
Programming counter value of 5 to 403: z = 500 µs
5. For the maximum erase time (tE(max)), the following relationship applies between the
wait time after E bit setting (z) and the maximum erase count (N):
tE(max) = Wait time after E bit setting (z) × maximum erase count (N)
To set the maximum erase time, the values of z and N should be set so as to satisfy the
above formula.
Examples: When z = 5 [ms], N = 60 times
When z = 10 [ms], N = 30 times
18.3
Operational Timing
This section shows timing diagrams.
18.3.1
Bus Timing
Bus timing is shown as follows:
• Basic bus cycle: two-state access
Figure 18.7 shows the timing of the external two-state access cycle.
• Basic bus cycle: three-state access
Figure 18.8 shows the timing of the external three-state access cycle.
• Basic bus cycle: three-state access with one wait state
Figure 18.9 shows the timing of the external three-state access cycle with one wait state
inserted.
Rev.3.00 Mar. 26, 2007 Page 552 of 682
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Section 18 Electrical Characteristics
T1
T2
tcyc
tCH
tCL
φ
tCf
tCr
tAD
A23 to A 0
tPCH
AS
tASD
tACC3
tSD
tAH
tASD
tACC3
tSD
tAH
tAS1
tPCH
RD
(read)
tAS1
tACC1
tRDS
tRDH
D7 to D0
(read)
tPCH
tASD
WR (write)
tSD
tAH
tAS1
tWSW1
tWDD
tWDS1
tWDH
D7 to D0
(write)
Figure 18.7 Basic Bus Cycle: Two-State Access
Rev.3.00 Mar. 26, 2007 Page 553 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
T1
T2
T3
φ
A23 to A0
tACC4
AS
tACC4
RD (read)
tRDS
tACC2
D7 to D0
(read)
tWSD
WR (write)
tWSW2
tAS2
tWDS2
D7 to D0
(write)
Figure 18.8 Basic Bus Cycle: Three-State Access
Rev.3.00 Mar. 26, 2007 Page 554 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
T1
T2
TW
T3
φ
A23 to A0
AS
RD (read)
D7 to D0
(read)
WR (write)
D7 to D0
(write)
tWTS
tWTH
tWTS
tWTH
WAIT
Figure 18.9 Basic Bus Cycle: Three-State Access with One Wait State
Rev.3.00 Mar. 26, 2007 Page 555 of 682
REJ09B0353-0300
Section 18 Electrical Characteristics
18.3.2
Control Signal Timing
Control signal timing is shown as follows:
• Reset input timing
Figure 18.10 shows the reset input timing.
• Reset output timing
Figure 18.11 shows the reset output timing.
• Interrupt input timing
Figure 18.12 shows the interrupt input timing for NMI and IRQ5, IRQ4, IRQ1, and IRQ0.
φ
tRESS
tRESS
RES
tMDS
tRESW
MD2 to MD0
FWE*
Note: * The FWE input timing shown is for entering and exiting boot mode.
Figure 18.10 Reset Input Timing
φ
tRESD
tRESD
RESO*
tRESOW
Note: * Flash version does not have RESO output pin
Figure 18.11 Reset Output Timing
Rev.3.00 Mar. 26, 2007 Page 556 of 682
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Section 18 Electrical Characteristics
φ
tNMIS
tNMIH
tNMIS
tNMIH
NMI
IRQ E
tNMIS
IRQ L
IRQ E : Edge-sensitive IRQ i
IRQ L : Level-sensitive IRQ i (i = 0, 1, 4, and 5)
tNMIW
NMI
IRQ j
(j = 0, 1)
Figure 18.12 Interrupt Input Timing
Rev.3.00 Mar. 26, 2007 Page 557 of 682
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Section 18 Electrical Characteristics
18.3.3
Clock Timing
Clock timing is shown below.
• Oscillator settling timing
Figure 18.13 shows the oscillator settling timing.
φ
VCC
STBY
tOSC1
tOSC1
RES
Figure 18.13 Oscillator Settling Timing
18.3.4
TPC and I/O Port Timing
TPC and I/O port timing is shown below.
T1
T2
T3
φ
tPRS
Ports 1 to 3,
5 to 9, A, and
B (read)
tPRH
tPWD
Ports 1 to 3,
5, 6, 8, 9, A,
and B (write)
Figure 18.14 TPC and I/O Port Input/Output Timing
Rev.3.00 Mar. 26, 2007 Page 558 of 682
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Section 18 Electrical Characteristics
18.3.5
ITU Timing
ITU timing is shown as follows:
• ITU input/output timing
Figure 18.15 shows the ITU input/output timing.
• ITU external clock input timing
Figure 18.16 shows the ITU external clock input timing.
φ
tTOCD
Output
compare*1
tTICS
Input
capture*2
Notes: 1. TIOCA0 to TIOCA4, TIOCB0 to TIOCB4, TOCXA4, TOCXB4
2. TIOCA0 to TIOCA4, TIOCB0 to TIOCB4
Figure 18.15 ITU Input/Output Timing
tTCKS
φ
tTCKS
TCLKA to
TCLKD
tTCKWL
tTCKWH
Figure 18.16 ITU External Clock Input Timing
Rev.3.00 Mar. 26, 2007 Page 559 of 682
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Section 18 Electrical Characteristics
18.3.6
SCI Input/Output Timing
SCI timing is shown as follows:
• SCI input clock timing
Figure 18.17 shows the SCI input clock timing.
• SCI input/output timing (synchronous mode)
Figure 18.18 shows the SCI input/output timing in synchronous mode.
tSCKr
tSCKW
tSCKf
SCK
tScyc
Figure 18.17 SCK Input Clock Timing
tScyc
SCK
tTXD
TxD
(transmit
data)
tRXS
tRXH
RxD
(receive
data)
Figure 18.18 SCI Input/Output Timing in Synchronous Mode
Rev.3.00 Mar. 26, 2007 Page 560 of 682
REJ09B0353-0300
Appendix A Instruction Set
Appendix A Instruction Set
A.1
Instruction List
Operand Notation
Symbol
Description
Rd
General destination register*
Rs
General source register*
Rn
General register*
ERd
General destination register (address register or 32-bit register)
ERs
General source register (address register or 32-bit register)
ERn
General register (32-bit register)
(EAd)
Destination operand
(EAs)
Source operand
PC
Program counter
SP
Stack pointer
CCR
Condition code register
N
N (negative) flag in CCR
Z
Z (zero) flag in CCR
V
V (overflow) flag in CCR
C
C (carry) flag in CCR
disp
Displacement
→
Transfer from the operand on the left to the operand on the right, or transition from
the state on the left to the state on the right
+
Addition of the operands on both sides
–
Subtraction of the operand on the right from the operand on the left
×
Multiplication of the operands on both sides
÷
Division of the operand on the left by the operand on the right
∧
Logical AND of the operands on both sides
•
Logical OR of the operands on both sides
⊕
Exclusive logical OR of the operands on both sides
¬
NOT (logical complement)
( ), < >
Contents of operand
Note:
*
General registers include 8-bit registers (R0H to R7H and R0L to R7L) and 16-bit
registers (R0 to R7 and E0 to E7).
Rev.3.00 Mar. 26, 2007 Page 561 of 682
REJ09B0353-0300
Appendix A Instruction Set
Condition Code Notation
↔
Symbol
Description
Changed according to execution result
*
Undetermined (no guaranteed value)
0
Cleared to 0
1
Set to 1
—
Not affected by execution of the instruction
∆
Varies depending on conditions, described in notes
Rev.3.00 Mar. 26, 2007 Page 562 of 682
REJ09B0353-0300
Appendix A Instruction Set
Table A.1
Instruction Set
1. Data transfer instructions
B
@(d:16, ERs) → Rd8
MOV.B @(d:24, ERs),
Rd
B
@(d:24, ERs) → Rd8
MOV.B @ERs+, Rd
B
@ERs → RD8
ERs32+1 → ERs32
MOV.B @aa:8, Rd
B
@aa:8 → Rd8
MOV.B @aa:16, Rd
B
MOV.B @aa:24, Rd
B
MOV.B Rs, @ERd
B
Rs8 → @ERd
MOV.B Rs, @(d:16,
ERd)
B
Rd8 → @(d:16, ERd)
4
— —
MOV.B Rs, @(d:24,
ERd)
B
Rd8 → @(d:24, ERd)
8
— —
MOV.B Rs, @–ERd
B
ERd32–1 → ERd32
Rs8 → @ERd
— —
MOV.B Rs, @aa:8
B
Rs8 → @aa:8
2
— —
MOV.B Rs, @aa:16
B
Rs8 → @aa:16
4
— —
MOV.B Rs, @aa:24
B
Rs8 → @aa:24
6
— —
↔ ↔ ↔
↔ ↔ ↔
↔
↔
0 —
↔
↔
0 —
↔
↔
0 —
↔ ↔
↔ ↔
0 —
↔ ↔ ↔
↔ ↔ ↔
0 —
↔
↔
0 —
↔
↔
0 —
MOV.W #xx:16, Rd
W #xx:16 → Rd16
MOV.W Rs, Rd
W Rs16 → Rd16
MOV.W @ERs, Rd
W @ERs → Rd16
MOV.W @(d:16, ERs),
Rd
W @(d:16, ERs) → Rd16
4
— —
↔ ↔ ↔ ↔ ↔ ↔ ↔
↔ ↔ ↔ ↔ ↔ ↔ ↔
0 —
0 —
MOV.W @(d:24, ERs),
Rd
W @(d:24, ERs) → Rd16
8
— —
↔
↔
0 —
MOV.W @ERs+, Rd
W @ERs → Rd16
ERs32+2 → @ERd32
— —
↔
C
0 —
↔
V
0 —
MOV.W @aa:16, Rd
W @aa:16 → Rd16
— —
↔
Z
↔
H N
0 —
— —
2
— —
2
— —
4
— —
8
— —
— —
2
— —
@aa:16 → Rd8
4
— —
@aa:24 → Rd8
6
— —
2
2
— —
2
4
— —
2
— —
2
— —
2
4
Advanced
MOV.B @(d:16, ERs),
Rd
Condition Code
I
Normal
@ERs → Rd8
Implied
Rs8 → Rd8
B
@@aa
B
MOV.B @ERs, Rd
@(d, PC)
MOV.B Rs, Rd
@aa
2
@(d, ERn)
#xx:8 → Rd8
MOV.B #xx:8, Rd
@ERn
B
Mnemonic
Rn
Operation
#xx
No. of
States*1
Operand Size
@–ERn/@ERn+
Addressing Mode and
Instruction Length (bytes)
2
0 —
2
0 —
4
6
10
6
4
0 —
6
8
0 —
4
0 —
6
10
6
4
0 —
6
0 —
8
0 —
4
0 —
2
0 —
4
6
10
6
6
Rev.3.00 Mar. 26, 2007 Page 563 of 682
REJ09B0353-0300
Appendix A Instruction Set
W Rs16 → @(d:24, ERd)
8
— —
MOV.W Rs, @–ERd
W ERd32–2 → ERd32
Rs16 → @ERd
— —
MOV.W Rs, @aa:16
W Rs16 → @aa:16
4
— —
MOV.W Rs, @aa:24
W Rs16 → @aa:24
6
— —
MOV.L #xx:32, Rd
L
L
@ERs → ERd32
ERs32+4 → ERs32
— —
MOV.L @aa:16, ERd
L
@aa:16 → ERd32
— —
4
0 —
0 —
0 —
0 —
8
0 —
10
0 —
14
0 —
10
0 —
10
0 —
12
0 —
6
0 —
10
MOV.L @aa:24, ERd
L
@aa:24 → ERd32
MOV.L ERs, @ERd
L
ERs32 → @ERd
MOV.L ERs, @(d:16,
ERd)
L
ERs32 → @(d:16, ERd)
6
— —
MOV.L ERs, @(d:24,
ERd)
L
ERs32 → @(d:24, ERd)
10
— —
MOV.L ERs, @–ERd
L
ERd32–4 → ERd32
ERs32 → @ERd
— —
MOV.L ERs, @aa:16
L
ERs32 → @aa:16
6
— —
MOV.L ERs, @aa:24
L
ERs32 → @aa:24
8
— —
POP.W Rn
W @SP → Rn16
SP+2 → SP
2 — —
POP.L ERn
L
4 — —
↔
6
↔ ↔ ↔
MOV.L @ERs+, ERd
↔ ↔ ↔
— —
↔
10
↔
@(d:24, ERs) → ERd32
↔
L
↔
MOV.L @(d:24, ERs),
ERd
↔ ↔ ↔ ↔ ↔ ↔
— —
↔ ↔ ↔ ↔ ↔ ↔
6
↔
@(d:16, ERs) → ERd32
— —
↔
L
— —
4
↔
MOV.L @(d:16, ERs),
ERd
2
↔
ERs32 → ERd32
@ERs → ERd32
↔ ↔ ↔ ↔
L
L
0 —
↔ ↔ ↔ ↔
MOV.L ERs, ERd
MOV.L @ERs, ERd
0 —
↔
— —
0 —
↔
6
@SP → ERn32
SP+4 → SP
Rev.3.00 Mar. 26, 2007 Page 564 of 682
REJ09B0353-0300
8
— —
— —
4
4
C
0 —
↔
2
V
↔
— —
Z
↔ ↔ ↔
H N
↔ ↔ ↔
#xx:32 → Rd32
I
— —
Normal
MOV.W Rs, @(d:24,
ERd)
Implied
— —
@@aa
4
2
@(d, PC)
W Rs16 → @(d:16, ERd)
@aa
MOV.W Rs, @(d:16,
ERd)
6
↔
@–ERn/@ERn+
W Rs16 → @ERd
@(d, ERn)
MOV.W Rs, @ERd
Operation
@ERn
W @aa:24 → Rd16
Rn
Operand Size
MOV.W @aa:24, Rd
#xx
Mnemonic
Condition Code
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
8
0 —
4
0 —
6
8
6
6
0 —
8
0 —
6
0 —
2
0 —
8
0 —
10
14
10
10
0 —
12
Appendix A Instruction Set
I
H N
Z
V
C
Normal
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
Rn
Operation
#xx
Operand Size
Mnemonic
Condition Code
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
SP–4 → SP
ERn32 → @SP
MOVFPE @aa:16,
Rd
B
Cannot be used in the
H8/3039 Group
4
Cannot be used in the H8/3039
Group
MOVTPE Rs,
@aa:16
B
Cannot be used in the
H8/3039 Group
4
Cannot be used in the H8/3039
Group
4 — —
↔
L
↔
PUSH.L ERn
2 — —
0 —
6
↔
W SP–2 → SP
Rn16 → @SP
↔
PUSH.W Rn
0 —
10
Rev.3.00 Mar. 26, 2007 Page 565 of 682
REJ09B0353-0300
Appendix A Instruction Set
2. Arithmetic instructions
Condition Code
I
H N
Z
V
C
Normal
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
2
Rn
Operation
#xx
Operand Size
Mnemonic
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
ADDX.B #xx:8, Rd
B
Rd8+#xx:8 +C → Rd8
ADDX.B Rs, Rd
B
Rd8+Rs8 +C → Rd8
2
—
ADDS.L #1, ERd
L
ERd32+1 → ERd32
2
ADDS.L #2, ERd
L
ERd32+2 → ERd32
2
— — — — — —
2
↔ ↔ ↔ ↔ ↔
ERd32+ERs32 →
ERd32
↔ ↔ ↔ ↔ ↔
L
6
— (2)
↔
ADD.L ERs, ERd
— (2)
2
(3)
↔ ↔
ERd32+#xx:32 →
ERd32
↔ ↔ ↔ ↔ ↔
L
↔
W Rd16+Rs16 → Rd16
ADD.L #xx:32, ERd
↔
ADD.W Rs, Rd
↔ ↔
W Rd16+#xx:16 → Rd16
2
— — — — — —
2
—
2
—
↔ ↔
ADD.W #xx:16, Rd
↔ ↔ ↔ ↔ ↔
Rd8+Rs8 → Rd8
↔
Rd8+#xx:8 → Rd8
B
↔ ↔
B
ADD.B Rs, Rd
↔ ↔
ADD.B #xx:8, Rd
— (1)
4
2
6
2
2
— (1)
—
(3)
2
— — — — — —
2
— —
INC.W #1, Rd
W Rd16+1 → Rd16
2
— —
INC.W #2, Rd
W Rd16+2 → Rd16
2
— —
Rev.3.00 Mar. 26, 2007 Page 566 of 682
REJ09B0353-0300
↔ ↔ ↔
ERd32+4 → ERd32
Rd8+1 → Rd8
↔ ↔ ↔
L
B
↔ ↔ ↔
ADDS.L #4, ERd
INC.B Rd
2
2
4
2
2
2
—
2
—
2
—
2
Appendix A Instruction Set
I
H N
Z
V
C
—
2
—
2
* —
2
ERd32–#xx:32
→ ERd32
SUB.L ERs, ERd
L
ERd32–ERs32
→ ERd32
6
2
2
6
2
(3)
2
(3)
2
— — — — — —
2
— (2)
— (2)
4
SUBS.L #1, ERd
L
ERd32–1 → ERd32
2
SUBS.L #2, ERd
L
ERd32–2 → ERd32
2
— — — — — —
2
SUBS.L #4, ERd
L
ERd32–4 → ERd32
2
— — — — — —
DEC.B Rd
B
Rd8–1 → Rd8
2
— —
2
— —
2
— —
DEC.L #1, ERd
L
ERd32–1 → ERd32
2
— —
2
2
—
2
—
2
—
2
ERd32–2 → ERd32
2
— —
—
2
Rd8 decimal adjust
→ Rd8
2
— *
* —
2
MULXU. B Rs, Rd
B
Rd8 × Rs8 → Rd16
(unsigned multiplication)
2
— — — — — —
14
MULXU. W Rs, ERd
W Rd16 × Rs16 → ERd32
(unsigned multiplication)
2
— — — — — —
22
MULXS. B Rs, Rd
B
4
— —
MULXS. W Rs, ERd
W Rd16 × Rs16 → ERd32
(signed multiplication)
4
— —
DIVXU. B Rs, Rd
B
2
Rd8 × Rs8 → Rd16
(signed multiplication)
Rd16 ÷ Rs8 → Rd16
(RdH: remainder,
RdL: quotient)
(unsigned division)
↔
L
B
— —
16
↔
DEC.L #2, ERd
DAS.Rd
↔
W Rd16–1 → Rd16
W Rd16–2 → Rd16
—
↔
DEC.W #1, Rd
DEC.W #2, Rd
↔ ↔ ↔
—
↔ ↔
2
2
↔ ↔ ↔
—
Rd8–Rs8–C → Rd8
↔ ↔ ↔
Rd8–#xx:8–C → Rd8
B
↔ ↔ ↔
B
SUBX.B Rs, Rd
↔ ↔ ↔
SUBX.B #xx:8, Rd
↔
L
— (1)
↔
SUB.L #xx:32, ERd
4
↔ ↔
— (1)
W Rd16–#xx:16 → Rd16
W Rd16–Rs16 → Rd16
↔
2
SUB.W #xx:16, Rd
2
↔ ↔ ↔
—
↔
2
↔
Rd8–Rs8 → Rd8
↔
B
↔ ↔ ↔
SUB.B Rs, Rd
↔
— *
↔ ↔ ↔
2
↔
Rd8 decimal adjust
→ Rd8
↔
B
↔
DAA Rd
↔ ↔ ↔
— —
↔
2
↔
ERd32+2 → ERd32
↔ ↔ ↔
L
↔
INC.L #2, ERd
↔
— —
↔ ↔ ↔
2
↔
ERd32+1 → ERd32
↔
L
↔
INC.L #1, ERd
SUB.W Rs, Rd
Normal
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
Rn
Operation
#xx
Operand Size
Mnemonic
Condition Code
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
— —
24
— — (6) (7) — —
14
Rev.3.00 Mar. 26, 2007 Page 567 of 682
REJ09B0353-0300
Appendix A Instruction Set
I
H N
Z
V
C
Normal
Condition Code
Advanced
No. of
States*1
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
Rn
Operation
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
— — (8) (7) — —
16
DIVXS. W Rs, ERd
W ERd32 ÷ Rs16 → ERd32
(Ed: remainder,
Rd: quotient)
(signed division)
4
— — (8) (7) — —
24
CMP.B #xx:8, Rd
B
Rd8–#xx:8
Rd8–Rs8
2
L
ERd32–#xx:32
CMP.L ERs, ERd
L
ERd32–ERs32
2
— (2)
— (2)
NEG.B Rd
B
0–Rd8 → Rd8
2
—
NEG.W Rd
W 0–Rd16 → Rd16
2
—
NEG.L ERd
L
0–ERd32 → ERd32
2
—
EXTU.W Rd
W 0 → (<bits 15 to 8>
of Rd16)
2
— — 0
EXTU.L ERd
L
0 → (<bits 31 to 16>
of Rd32)
2
— — 0
EXTS.W Rd
W (<bit 7> of Rd16) →
(<bits 15 to 8> of Rd16)
2
— —
↔
↔ ↔ ↔
CMP.L #xx:32, ERd
EXTS.L ERd
L
2
— —
↔
6
— (1)
(<bit 15> of Rd32) →
(<bits 31 to 16> of
ERd32)
Rev.3.00 Mar. 26, 2007 Page 568 of 682
REJ09B0353-0300
2
4
2
4
2
2
2
2
↔
W Rd16–Rs16
—
— (1)
0 —
2
↔
CMP.W Rs, Rd
2
4
2
0 —
2
↔
B
W Rd16–#xx:16
—
0 —
2
↔
CMP.B Rs, Rd
CMP.W #xx:16, Rd
2
↔ ↔ ↔ ↔ ↔
4
↔ ↔ ↔ ↔ ↔
Rd16 ÷ Rs8 → Rd16
(RdH: remainder,
RdL: quotient)
(signed division)
↔ ↔ ↔ ↔
B
↔ ↔ ↔ ↔ ↔
DIVXS. B Rs, Rd
↔ ↔ ↔ ↔
22
↔ ↔ ↔ ↔
— — (6) (7) — —
↔ ↔
2
↔ ↔ ↔ ↔ ↔
W ERd32 ÷ Rs16 →ERd32
(Ed: remainder,
Rd: quotient)
(unsigned division)
↔ ↔ ↔ ↔
DIVXU. W Rs, ERd
0 —
2
Appendix A Instruction Set
3. Logic instructions
AND.W #xx:16, Rd
W Rd16∧#xx:16 → Rd16
AND.W Rs, Rd
W Rd16∧Rs16 → Rd16
AND.L #xx:32, ERd
L
ERd32∧#xx:32 → ERd32
AND.L ERs, ERd
L
ERd32∧ERs32 → ERd32
OR.B #xx:8, Rd
B
Rd8∨#xx:8 → Rd8
OR.B Rs, Rd
B
Rd8∨Rs8 → Rd8
OR.W #xx:16, Rd
W Rd16∨#xx:16 → Rd16
OR.W Rs, Rd
W Rd16∨Rs16 → Rd16
OR.L #xx:32, ERd
L
ERd32∨#xx:32 → ERd32
OR.L ERs, ERd
L
ERd32∨ERs32 → ERd32
XOR.B #xx:8, Rd
B
Rd8⊕#xx:8 → Rd8
XOR.B Rs, Rd
B
Rd8⊕Rs8 → Rd8
XOR.W #xx:16, Rd
W Rd16⊕#xx:16 → Rd16
XOR.W Rs, Rd
W Rd16⊕Rs16 → Rd16
XOR.L #xx:32, ERd
L
ERd32⊕#xx:32 → ERd32
XOR.L ERs, ERd
L
ERd32⊕ERs32 → ERd32
¬ Rd8 → Rd8
Z
— —
2
4
— —
— —
2
6
— —
— —
4
2
— —
— —
2
4
— —
— —
2
6
— —
— —
4
— —
2
— —
2
— —
— —
4
2
— —
— —
6
4
— —
NOT.B Rd
B
2
— —
NOT.W Rd
W ¬ Rd16 → Rd16
2
— —
NOT.L ERd
L
¬ Rd32 → Rd32
2
— —
V
C
Advanced
H N
Normal
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
Condition Code
I
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
Rd8∧#xx:8 → Rd8
Rd8∧Rs8 → Rd8
No. of
States*1
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
B
B
@ERn
2
AND.B #xx:8, Rd
AND.B Rs, Rd
Rn
Operation
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
0 —
2
0 —
2
0 —
4
0 —
2
0 —
6
0 —
4
0 —
2
0 —
2
0 —
4
0 —
2
0 —
6
0 —
4
0 —
2
0 —
2
0 —
4
0 —
2
0 —
6
0 —
4
0 —
2
0 —
2
0 —
2
Rev.3.00 Mar. 26, 2007 Page 569 of 682
REJ09B0353-0300
Appendix A Instruction Set
4. Shift instructions
2
— —
2
— —
SHAR.B Rd
B
2
— —
SHAR.W Rd
W
2
— —
SHAR.L ERd
L
2
— —
SHLL.B Rd
B
2
— —
SHLL.W Rd
W
SHLL.L ERd
L
SHLR.B Rd
B
SHLR.W Rd
W
SHLR.L ERd
L
MSB
C
LSB
0
C MSB
LSB
0
MSB
LSB
C
2
— —
2
— —
2
— —
2
— —
2
— —
ROTXL.B Rd
B
2
— —
ROTXL.W Rd
W
2
— —
2
— —
2
— —
ROTXL.L ERd
L
ROTXR.B Rd
B
ROTXR.W Rd
W
ROTXR.L ERd
L
ROTL.B Rd
B
ROTL.W Rd
W
ROTL.L ERd
L
C MSB
MSB
C MSB
LSB
LSB
C
LSB
2
— —
2
— —
2
— —
2
— —
2
— —
ROTR.B Rd
B
2
— —
ROTR.W Rd
W
2
— —
ROTR.L ERd
L
2
— —
MSB
LSB
C
Rev.3.00 Mar. 26, 2007 Page 570 of 682
REJ09B0353-0300
C
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Advanced
V
Normal
Z
— —
↔ ↔ ↔
H N
2
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
Implied
@@aa
Condition Code
I
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
LSB
No. of
States*1
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
C MSB
@(d, PC)
L
@aa
SHAL.L ERd
0
@–ERn/@ERn+
W
@(d, ERn)
SHAL.W Rd
@ERn
B
Operation
Rn
SHAL.B Rd
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Appendix A Instruction Set
5. Bit manipulation instructions
(Rn8 of @ERd) ← 1
BSET Rn, @aa:8
B
(Rn8 of @aa:8) ← 1
BCLR #xx:3, Rd
B
(#xx:3 of Rd8) ← 0
BCLR #xx:3, @ERd
B
(#xx:3 of @ERd) ← 0
BCLR #xx:3, @aa:8
B
(#xx:3 of @aa:8) ← 0
BCLR Rn, Rd
B
(Rn8 of Rd8) ← 0
BCLR Rn, @ERd
B
(Rn8 of @ERd) ← 0
BCLR Rn, @aa:8
B
(Rn8 of @aa:8) ← 0
BNOT #xx:3, Rd
B
(#xx:3 of Rd8) ←
¬ (#xx:3 of Rd8)
BNOT #xx:3, @ERd
B
(#xx:3 of @ERd) ←
¬ (#xx:3 of @ERd)
BNOT #xx:3, @aa:8
B
(#xx:3 of @aa:8) ←
¬ (#xx:3 of @aa:8)
BNOT Rn, Rd
B
(Rn8 of Rd8) ←
¬ (Rn8 of Rd8)
BNOT Rn, @ERd
B
(Rn8 of @ERd) ←
¬ (Rn8 of @ERd)
BNOT Rn, @aa:8
B
(Rn8 of @aa:8) ←
¬ (Rn8 of @aa:8)
BTST #xx:3, Rd
B
¬ (#xx:3 of Rd8) → Z
BTST #xx:3, @ERd
B
¬ (#xx:3 of @ERd) → Z
BTST #xx:3, @aa:8
B
¬ (#xx:3 of @aa:8) → Z
BTST Rn, Rd
B
¬ (Rn8 of @Rd8) → Z
BTST Rn, @ERd
B
¬ (Rn8 of @ERd) → Z
BTST Rn, @aa:8
B
¬ (Rn8 of @aa:8) → Z
BLD #xx:3, Rd
B
(#xx:3 of Rd8) → C
2
4
4
2
4
4
2
4
4
2
4
4
2
4
4
2
2
8
— — — — — —
8
— — — — — —
2
— — — — — —
8
— — — — — —
8
— — — — — —
2
— — — — — —
8
— — — — — —
8
— — — — — —
2
— — — — — —
8
— — — — — —
8
— — — — — —
2
— — — — — —
8
— — — — — —
8
— — — — — —
2
— — — — — —
8
— — — — — —
8
— — —
— — —
4
2
2
— — —
4
C
— — — — — —
— — —
4
V
— — — — — —
— — —
4
Z
Normal
(Rn8 of Rd8) ← 1
B
H N
— — —
— —
2
— —
6
— —
6
— —
2
— —
6
— —
6
↔
B
BSET Rn, @ERd
Condition Code
I
↔ ↔ ↔ ↔ ↔ ↔
BSET Rn, Rd
4
Implied
(#xx:3 of @aa:8) ← 1
4
@@aa
B
2
@(d, PC)
BSET #xx:3, @aa:8
@aa
(#xx:3 of @ERd) ← 1
@–ERn/@ERn+
(#xx:3 of Rd8) ← 1
B
@(d, ERn)
B
BSET #xx:3, @ERd
@ERn
BSET #xx:3, Rd
Rn
Operand Size
Operation
#xx
Mnemonic
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
2
— — — — —
Rev.3.00 Mar. 26, 2007 Page 571 of 682
REJ09B0353-0300
Appendix A Instruction Set
B
C → (#xx:3 of Rd8)
BST #xx:3, @ERd
B
C → (#xx:3 of @ERd24)
BST #xx:3, @aa:8
B
C → (#xx:3 of @aa:8)
BIST #xx:3, Rd
B
¬ C → (#xx:3 of Rd8)
BIST #xx:3, @ERd
B
¬ C → (#xx:3 of @ERd24)
BIST #xx:3, @aa:8
B
¬ C → (#xx:3 of @aa:8)
BAND #xx:3, Rd
B
C∧(#xx:3 of Rd8) → C
BAND #xx:3, @ERd
B
C∧(#xx:3 of @ERd24) → C
BAND #xx:3, @aa:8
B
C∧(#xx:3 of @aa:8) → C
BIAND #xx:3, Rd
B
C∧ ¬ (#xx:3 of Rd8) → C
BIAND #xx:3, @ERd
B
C∧ ¬ (#xx:3 of @ERd24) → C
BIAND #xx:3, @aa:8
B
C∧ ¬ (#xx:3 of @aa:8) → C
BOR #xx:3, Rd
B
C∨(#xx:3 of Rd8) → C
BOR #xx:3, @ERd
B
C∨(#xx:3 of @ERd24) → C
BOR #xx:3, @aa:8
B
C∨(#xx:3 of @aa:8) → C
BIOR #xx:3, Rd
B
C∨ ¬ (#xx:3 of Rd8) → C
BIOR #xx:3, @ERd
B
C∨ ¬ (#xx:3 of @ERd24) → C
BIOR #xx:3, @aa:8
B
C∨ ¬ (#xx:3 of @aa:8) → C
BXOR #xx:3, Rd
B
C ⊕ (#xx:3 of Rd8) → C
BXOR #xx:3, @ERd
B
C ⊕(#xx:3 of @ERd24) → C
BXOR #xx:3, @aa:8
B
C ⊕ (#xx:3 of @aa:8) → C
BIXOR #xx:3, Rd
B
C ⊕ ¬ (#xx:3 of Rd8) → C
BIXOR #xx:3, @ERd
B
C ⊕ ¬ (#xx:3 of @ERd24) → C
BIXOR #xx:3, @aa:8
B
C ⊕ ¬ (#xx:3 of @aa:8) → C
Rev.3.00 Mar. 26, 2007 Page 572 of 682
REJ09B0353-0300
— — — — —
4
2
— — — — —
— — — — —
4
— — — — —
4
2
— — — — —
— — — — — —
4
4
2
4
4
2
2
— — — — — —
2
— — — — — —
8
— — — — — —
8
2
6
— — — — —
— — — — —
— — — — —
2
— — — — —
4
4
— — — — —
— — — — —
2
4
— — — — —
4
2
— — — — —
— — — — —
4
— — — — —
4
2
— — — — —
— — — — —
4
— — — — —
4
6
2
8
— — — — —
4
6
8
— — — — —
4
6
2
— — — — — —
— — — — —
4
6
— — — — — —
— — — — —
4
Normal
C
↔ ↔ ↔ ↔ ↔
BST #xx:3, Rd
V
↔ ↔ ↔ ↔
¬ (#xx:3 of @aa:8) → C
Z
↔ ↔ ↔ ↔
¬ (#xx:3 of @ERd) → C
B
H N
— — — — —
↔ ↔
B
Condition Code
I
↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔
BILD #xx:3, @ERd
BILD #xx:3, @aa:8
Implied
¬ (#xx:3 of Rd8) → C
@@aa
B
4
@(d, PC)
BILD #xx:3, Rd
@aa
(#xx:3 of @aa:8) → C
@–ERn/@ERn+
(#xx:3 of @ERd) → C
B
@(d, ERn)
B
BLD #xx:3, @aa:8
@ERn
BLD #xx:3, @ERd
Rn
Operand Size
Operation
#xx
Mnemonic
Advanced
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
6
6
2
6
2
6
6
2
6
6
2
6
6
2
6
6
Appendix A Instruction Set
6. Branching instructions
BLS d:8
—
BLS d:16
—
BCC d:8 (BHS d:8)
—
BCC d:16 (BHS d:16)
—
BCS d:8 (BLO d:8)
—
BCS d:16 (BLO d:16)
—
BNE d:8
—
BNE d:16
—
BEQ d:8
—
BEQ d:16
—
BVC d:8
—
BVC d:16
—
BVS d:8
—
BVS d:16
—
BPL d:8
—
BPL d:16
—
BMI d:8
—
BMI d:16
—
BGE d:8
—
BGE d:16
—
BLT d:8
—
BLT d:16
—
BGT d:8
—
BGT d:16
—
C∨Z=1
C=0
C=1
Z=0
Z=1
V=0
V=1
N=0
N=1
N⊕V=0
N⊕ V=1
Z ∨ (N ⊕ V)
=0
H N
Z
V
C
Advanced
—
Condition Code
I
Normal
BHI d:16
C∨Z=0
No. of
States*1
Implied
—
@@aa
—
BHI d:8
@(d, PC)
BRN d:16 (BF d:16)
@aa
—
@–ERn/@ERn+
BRN d:8 (BF d:8)
If condition Always
is true then
PC ←
PC+d else Never
next;
@(d, ERn)
—
@ERn
—
BRA d:16 (BT d:16)
Operation
Rn
BRA d:8 (BT d:8)
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
2
— — — — — —
4
4
— — — — — —
6
Rev.3.00 Mar. 26, 2007 Page 573 of 682
REJ09B0353-0300
Appendix A Instruction Set
Z ∨ (N ⊕ V)
=1
JMP @aa:24
— PC ← aa:24
JMP @@aa:8
— PC ← @aa:8
BSR d:8
— PC → @–SP
PC ← PC+d:8
BSR d:16
— PC → @–SP
PC ← PC+d:16
JSR @ERn
— PC → @–SP
PC ← @ERn
JSR @aa:24
— PC → @–SP
PC ← @aa:24
JSR @@aa:8
— PC → @–SP
PC ← @aa:8
RTS
— PC ← @SP+
Rev.3.00 Mar. 26, 2007 Page 574 of 682
REJ09B0353-0300
I
H N
Z
V
C
Normal
Condition Code
Advanced
No. of
States*1
Implied
@@aa
@(d, PC)
— PC ← ERn
@aa
JMP @ERn
@–ERn/@ERn+
—
If condition
is true then
PC ←
PC+d else
next;
@(d, ERn)
BLE d:16
Operation
@ERn
—
Rn
BLE d:8
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
2
— — — — — —
4
4
— — — — — —
6
— — — — — —
4
2
4
— — — — — —
2
6
— — — — — —
8
10
2
— — — — — —
6
8
4
— — — — — —
8
10
— — — — — —
6
8
— — — — — —
8
10
— — — — — —
8
12
2 — — — — — —
8
10
2
4
2
Appendix A Instruction Set
7. System control instructions
No. of
States*1
Implied
I
C
Normal
Advanced
2
1 — — — — —
14
16
Condition Code
Z
V
10
SLEEP
— Transition to powerdown state
— — — — — —
2
LDC #xx:8, CCR
B
#xx:8 → CCR
2
LDC Rs, CCR
B
Rs8 → CCR
LDC @ERs, CCR
W @ERs → CCR
LDC @(d:16, ERs),
CCR
W @(d:16, ERs) → CCR
6
LDC @(d:24, ERs),
CCR
W @(d:24, ERs) → CCR
10
LDC @ERs+, CCR
W @ERs → CCR
ERs32+2 → ERs32
LDC @aa:16, CCR
W @aa:16 → CCR
↔
↔
↔ ↔ ↔ ↔
↔ ↔ ↔ ↔
↔
↔
↔
↔
↔
↔ ↔ ↔ ↔
↔
↔
↔
↔
↔
↔ ↔ ↔ ↔
↔
↔
↔
8
↔
12
8
↔
↔ ↔ ↔ ↔
↔
↔
↔
8
8
↔
↔ ↔ ↔ ↔
↔
↔
6
↔
↔
— CCR ← @SP+
PC ← @SP+
↔
RTE
↔
— PC → @–SP
CCR → @–SP
<vector> → PC
↔
TRAPA #x:2
↔
H N
↔
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
Rn
Operation
#xx
Mnemonic
Operand Size
Addressing Mode and
Instruction Length (bytes)
10
— — — — — —
2
— — — — — —
6
6
— — — — — —
8
10
— — — — — —
12
— — — — — —
8
2
2
4
W CCR → @ERd
STC CCR, @(d:16,
ERd)
W CCR → @(d:16, ERd)
STC CCR, @(d:24,
ERd)
W CCR → @(d:24, ERd)
STC CCR, @–ERd
W ERd32–2 → ERd32
CCR → @ERd
STC CCR, @aa:16
W CCR → @aa:16
6
— — — — — —
8
STC CCR, @aa:24
W CCR → @aa:24
8
— — — — — —
10
ANDC #xx:8, CCR
B
CCR∧#xx:8 → CCR
2
2
ORC #xx:8, CCR
B
CCR∨#xx:8 → CCR
2
XORC #xx:8, CCR
B
CCR⊕#xx:8 → CCR
2
NOP
— PC ← PC+2
2 — — — — — —
2
2
4
4
↔ ↔ ↔
STC CCR, @ERd
CCR → Rd8
↔ ↔ ↔
B
↔ ↔ ↔
W @aa:24 → CCR
↔ ↔ ↔
LDC @aa:24, CCR
STC CCR, Rd
↔ ↔ ↔
6
↔ ↔ ↔
4
2
2
2
Rev.3.00 Mar. 26, 2007 Page 575 of 682
REJ09B0353-0300
Appendix A Instruction Set
8. Block transfer instructions
Condition Code
I
H N
Z
V
C
Advanced
Implied
@@aa
@(d, PC)
@aa
@–ERn/@ERn+
@(d, ERn)
@ERn
Rn
Operation
#xx
Operand Size
Mnemonic
Normal
No. of
States*1
Addressing Mode and
Instruction Length (bytes)
EEPMOV. B
— if R4L ≠ 0 then
repeat @R5 → @R6
R5+1 → R5
R6+1 → R6
R4L−1 → R4L
until
R4L=0
else next
4 — — — — — —
8+4n*2
EEPMOV. W
— if R4 ≠ 0 then
repeat @R5 → @R6
R5+1 → R5
R6+1 → R6
R4−1 → R4
until
R4=0
else next
4 — — — — — —
8+4n*2
Notes: 1. The number of states is the number of states required for execution when the
instruction and its operands are located in on-chip memory. For other cases see section
A.3, Number of States Required for Execution.
2. n is the value set in register R4L or R4.
(1)
(2)
(3)
(4)
(5)
Set to 1 when a carry or borrow occurs at bit 11; otherwise cleared to 0.
Set to 1 when a carry or borrow occurs at bit 27; otherwise cleared to 0.
Retains its previous value when the result is zero; otherwise cleared to 0.
Set to 1 when the adjustment produces a carry; otherwise retains its previous value.
The number of states required for execution of an instruction that transfers data in
synchronization with the E clock is variable.
(6) Set to 1 when the divisor is negative; otherwise cleared to 0.
(7) Set to 1 when the divisor is zero; otherwise cleared to 0.
(8) Set to 1 when the quotient is negative; otherwise cleared to 0.
Rev.3.00 Mar. 26, 2007 Page 576 of 682
REJ09B0353-0300
STC
Table A.2
(2)
LDC
3
SUBX
OR
XOR
AND
MOV
C
D
E
F
BILD
BIST
BLD
BST
TRAPA
BEQ
B
BIAND
BAND
AND
RTE
BNE
CMP
BIXOR
BXOR
XOR
BSR
BCS
A
BIOR
BOR
OR
RTS
BCC
MOV.B
Table A.2
(2)
LDC
7
ADDX
BTST
DIVXU
BLS
AND.B
ANDC
6
9
BCLR
MULXU
BHI
XOR.B
XORC
5
ADD
BNOT
DIVXU
BRN
OR.B
ORC
4
8
7
BSET
MULXU
5
6
BRA
4
3
2
2
1
Table A.2 Table A.2 Table A.2 Table A.2
(2)
(2)
(2)
(2)
NOP
0
MOV
BVS
9
B
JMP
BPL
BMI
MOV
Table A.2 Table A.2
(2)
(2)
Table A.2 Table A.2
(2)
(2)
A
Table A.2 Table A.2
EEPMOV
(2)
(2)
SUB
ADD
Table A.2
(2)
BVC
8
BSR
BGE
C
CMP
MOV
Instruction when most significant bit of BH is 1.
Instruction when most significant bit of BH is 0.
E
JSR
BGT
SUBX
ADDX
Table A.2
(3)
BLT
D
BLE
Table A.2
(2)
Table A.2
(2)
F
Table A.2
1
0
AL
1st byte 2nd byte
AH AL BH BL
A.2
AH
Instruction code:
Appendix A Instruction Set
Operation Code Maps
Operation Code Map (1)
Rev.3.00 Mar. 26, 2007 Page 577 of 682
REJ09B0353-0300
Rev.3.00 Mar. 26, 2007 Page 578 of 682
REJ09B0353-0300
ADD
DAS
BRA
MOV
MOV
1F
58
79
7A
ADD
BRN
SUBS
1B
NOT
17
DEC
ROTXR
13
1A
ROTXL
12
DAA
0F
SHLR
ADDS
0B
11
INC
0A
SHLL
MOV
01
1
CMP
CMP
BHI
2
SUB
SUB
BLS
NOT
ROTXR
ROTXL
SHLR
SHLL
3
4
OR
OR
BCC
LDC/STC
1st byte 2nd byte
AH AL BH BL
XOR
XOR
BCS
DEC
EXTU
INC
5
AND
AND
BNE
6
BEQ
DEC
EXTU
INC
7
BVC
SUB
NEG
9
BVS
ROTR
ROTL
SHAR
SHAL
ADDS
SLEEP
8
BPL
A
MOV
BMI
NEG
CMP
SUB
ROTR
ROTL
SHAR
C
D
BGE
BLT
DEC
EXTS
INC
Table A.2 Table A.2
(3)
(3)
ADD
SHAL
B
BGT
E
BLE
DEC
EXTS
INC
Table A.2
(3)
F
Table A.2
10
0
BH
AH AL
Instruction code:
Appendix A Instruction Set
Operation Code Map (2)
DIVXS
3
BSET
7Faa7*2
BNOT
BCLR
Notes: 1. r is the register designation field.
2. aa is the absolute address field.
BSET
7Faa6*2
BTST
BCLR
BCLR
7Eaa7*2
BNOT
BNOT
BTST
BSET
7Dr07*1
7Eaa6*2
BSET
7Dr06*1
BTST
BCLR
MULXS
2
7Cr07*1
BNOT
DIVXS
1
BTST
MULXS
0
7Cr06*1
01F06
01D05
01C05
01406
CL
BIOR
BOR
BIOR
BOR
OR
4
BIXOR
BXOR
BIXOR
BXOR
XOR
5
BIAND
BAND
BIAND
BAND
AND
6
7
BIST
BILD
BST
BLD
BIST
BILD
BST
BLD
1st byte 2nd byte 3rd byte 4th byte
AH AL BH BL CH CL DH DL
8
LDC
STC
9
A
LDC
STC
B
C
LDC
STC
D
E
LDC
STC
F
Instruction when most significant bit of DH is 1.
Instruction when most significant bit of DH is 0.
Table A.2
AH
ALBH
BLCH
Instruction code:
Appendix A Instruction Set
Operation Code Map (3)
Rev.3.00 Mar. 26, 2007 Page 579 of 682
REJ09B0353-0300
Appendix A Instruction Set
A.3
Number of States Required for Execution
The tables in this section can be used to calculate the number of states required for instruction
execution by the H8/300H CPU. Table A.3 indicates the number of states required per cycle
according to the bus size. Table A.4 indicates the number of instruction fetch, data read/write, and
other cycles occurring in each instruction. The number of states required for execution of an
instruction can be calculated from these two tables as follows:
Number of states = I × SI + J × SJ + K × SK + L × SL + M × SM + N × SN
Examples of Calculation of Number of States Required for Execution
Examples: Advanced mode, stack located in external address space, on-chip supporting modules
accessed with 8-bit bus width, external devices accessed in three states with one wait state and
16-bit bus width.
BSET #0, @FFFFC7:8
From table A.3, SI = 4 and SL = 3
From table A.4, I = L = 2 and J = K = M = N = 0
Number of states = 2 × 4 + 2 × 3 = 14
JSR @@30
From table A.3, SI = SJ = SK = 4
From table A.4, I = J = K = 2 and L = M = N = 0
Number of states = 2 × 4 + 2 × 4 + 2 × 4 = 24
Rev.3.00 Mar. 26, 2007 Page 580 of 682
REJ09B0353-0300
Appendix A Instruction Set
Table A.3
Number of States per Cycle
Access Conditions
External Device
On-Chip
Supporting
Module
Cycle
8-Bit Bus
16-Bit Bus
On-Chip
Memory
8-Bit
Bus
16-Bit
Bus
2-State
Access
3-State 2-State
Access Access
3-State
Access
2
6
3
4
6 + 2m
2
3+m
1
1
Instruction fetch
SI
Branch address read
SJ
Stack operation
SK
Byte data access
SL
3
2
3+m
Word data access
SM
6
4
6 + 2m
Internal operation
SN
1
1
1
1
1
Legend:
m: Number of wait states inserted in external device access
Rev.3.00 Mar. 26, 2007 Page 581 of 682
REJ09B0353-0300
Appendix A Instruction Set
Table A.4
Number of Cycles per Instruction
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
Instruction
Mnemonic
ADD
ADD.B #xx:8, Rd
1
ADD.B Rs, Rd
1
ADD.W #xx:16, Rd
2
ADD.W Rs, Rd
1
ADD.L #xx:32, ERd
3
ADD.L ERs, ERd
1
ADDS
ADDS #1/2/4, ERd
1
ADDX
ADDX #xx:8, Rd
1
ADDX Rs, Rd
1
AND
AND.B #xx:8, Rd
1
AND.B Rs, Rd
1
AND.W #xx:16, Rd
2
AND.W Rs, Rd
1
AND.L #xx:32, ERd
3
AND.L ERs, ERd
2
ANDC
ANDC #xx:8, CCR
1
BAND
BAND #xx:3, Rd
1
BAND #xx:3, @ERd
2
1
BAND #xx:3, @aa:8
2
1
BRA d:8 (BT d:8)
2
BRN d:8 (BF d:8)
2
Bcc
BHI d:8
2
BLS d:8
2
BCC d:8 (BHS d:8)
2
BCS d:8 (BLO d:8)
2
BNE d:8
2
BEQ d:8
2
BVC d:8
2
BVS d:8
2
BPL d:8
2
BMI d:8
2
BGE d:8
2
BLT d:8
2
BGT d:8
2
BLE d:8
2
Rev.3.00 Mar. 26, 2007 Page 582 of 682
REJ09B0353-0300
Word Data
Access
M
Internal
Operation
N
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
Bcc
BRA d:16 (BT d:16)
2
2
BRN d:16 (BF d:16)
2
2
BHI d:16
2
2
BLS d:16
2
2
BCC d:16 (BHS d:16)
2
2
BCS d:16 (BLO d:16)
2
2
BNE d:16
2
2
BEQ d:16
2
2
BVC d:16
2
2
BVS d:16
2
2
BPL d:16
2
2
BMI d:16
2
2
BGE d:16
2
2
BLT d:16
2
2
BGT d:16
2
2
BLE d:16
2
2
BCLR #xx:3, Rd
1
BCLR #xx:3, @ERd
2
2
BCLR #xx:3, @aa:8
2
2
BCLR Rn, Rd
1
BCLR Rn, @ERd
2
2
2
BCLR
BIAND
BILD
BIOR
BIST
BIXOR
BCLR Rn, @aa:8
2
BIAND #xx:3, Rd
1
BIAND #xx:3, @ERd
2
1
BIAND #xx:3, @aa:8
2
1
BILD #xx:3, Rd
1
BILD #xx:3, @ERd
2
1
BILD #xx:3, @aa:8
2
1
BIOR #xx:8, Rd
1
BIOR #xx:8, @ERd
2
1
BIOR #xx:8, @aa:8
2
1
BIST #xx:3, Rd
1
BIST #xx:3, @ERd
2
2
BIST #xx:3, @aa:8
2
2
BIXOR #xx:3, Rd
1
BIXOR #xx:3, @ERd
2
1
BIXOR #xx:3, @aa:8
2
1
Word Data
Access
M
Internal
Operation
N
Rev.3.00 Mar. 26, 2007 Page 583 of 682
REJ09B0353-0300
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
BLD
BLD #xx:3, Rd
1
BLD #xx:3, @ERd
2
1
BLD #xx:3, @aa:8
2
1
BNOT #xx:3, Rd
1
BNOT #xx:3, @ERd
2
2
BNOT #xx:3, @aa:8
2
2
BNOT Rn, Rd
1
BNOT Rn, @ERd
2
2
BNOT Rn, @aa:8
2
2
BNOT
BOR
BSET
BSR
BST
BTST
BXOR
BOR #xx:3, Rd
1
BOR #xx:3, @ERd
2
1
BOR #xx:3, @aa:8
2
1
BSET #xx:3, Rd
1
Word Data
Access
M
Internal
Operation
N
BSET #xx:3, @ERd
2
2
BSET #xx:3, @aa:8
2
2
BSET Rn, Rd
1
BSET Rn, @ERd
2
BSET Rn, @aa:8
2
BSR d:8
Normal
2
1
Advanced
2
2
BSR d:16
Normal
2
1
2
Advanced
2
2
2
2
2
BST #xx:3, Rd
1
BST #xx:3, @ERd
2
2
BST #xx:3, @aa:8
2
2
BTST #xx:3, Rd
1
BTST #xx:3, @ERd
2
1
BTST #xx:3, @aa:8
2
1
BTST Rn, Rd
1
BTST Rn, @ERd
2
1
BTST Rn, @aa:8
2
1
BXOR #xx:3, Rd
1
BXOR #xx:3, @ERd
2
1
BXOR #xx:3, @aa:8
2
1
Rev.3.00 Mar. 26, 2007 Page 584 of 682
REJ09B0353-0300
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
CMP
CMP.B #xx:8, Rd
1
CMP.B Rs, Rd
1
CMP.W #xx:16, Rd
2
CMP.W Rs, Rd
1
CMP.L #xx:32, ERd
3
CMP.L ERs, ERd
1
DAA
DAA Rd
1
DAS
DAS Rd
1
DEC
DEC.B Rd
1
DIVXS
DIVXU
EEPMOV
1
DEC.L #1/2, ERd
1
DIVXS.B Rs, Rd
2
DIVXS.W Rs, ERd
2
20
DIVXU.B Rs, Rd
1
12
DIVXU.W Rs, ERd
1
12
20
1
2
2n +2*
EEPMOV.W
2
2n +2*1
EXTS
EXTS.W Rd
1
EXTS.L ERd
1
EXTU
EXTU.W Rd
1
EXTU.L ERd
1
JMP
INC.B Rd
1
INC.W #1/2, Rd
1
INC.L #1/2, ERd
1
JMP @ERn
2
JMP @aa:24
JSR
Internal
Operation
N
DEC.W #1/2, Rd
EEPMOV.B
INC
Word Data
Access
M
2
JMP @@aa:8
Normal
JSR @ERn
Advanced
JSR @aa:24
JSR @@aa:8
2
2
1
2
Advanced
2
2
Normal
2
1
2
2
2
Normal
2
1
2
Advanced
2
2
2
Normal
2
1
1
Advanced
2
2
2
Rev.3.00 Mar. 26, 2007 Page 585 of 682
REJ09B0353-0300
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
LDC
LDC #xx:8, CCR
1
MOV
Word Data
Access
M
LDC Rs, CCR
1
LDC @ERs, CCR
2
1
LDC @(d:16, ERs), CCR
3
1
LDC @(d:24, ERs), CCR
5
1
LDC @ERs+, CCR
2
1
LDC @aa:16, CCR
3
1
LDC @aa:24, CCR
4
1
MOV.B #xx:8, Rd
1
MOV.B Rs, Rd
1
MOV.B @ERs, Rd
1
1
MOV.B @(d:16, ERs), Rd
2
1
MOV.B @(d:24, ERs), Rd
4
1
MOV.B @ERs+, Rd
1
1
MOV.B @aa:8, Rd
1
1
MOV.B @aa:16, Rd
2
1
MOV.B @aa:24, Rd
3
1
MOV.B Rs, @ERd
1
1
MOV.B Rs, @(d:16, ERd)
2
1
MOV.B Rs, @(d:24, ERd)
4
1
MOV.B Rs, @–ERd
1
1
MOV.B Rs, @aa:8
1
1
MOV.B Rs, @aa:16
2
1
MOV.B Rs, @aa:24
3
1
MOV.W #xx:16, Rd
2
MOV.W Rs, Rd
1
2
2
2
MOV.W @ERs, Rd
1
1
MOV.W @(d:16, ERs), Rd
2
1
MOV.W @(d:24, ERs), Rd
4
1
MOV.W @ERs+, Rd
1
1
MOV.W @aa:16, Rd
2
1
MOV.W @aa:24, Rd
3
1
MOV.W Rs, @ERd
1
1
MOV.W Rs, @(d:16, ERd)
2
1
MOV.W Rs, @(d:24, ERd)
4
1
MOV.W Rs, @–ERd
1
1
MOV.W Rs, @aa:16
2
1
Rev.3.00 Mar. 26, 2007 Page 586 of 682
REJ09B0353-0300
Internal
Operation
N
2
2
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
MOV
MOV.W Rs, @aa:24
3
MOV.L #xx:32, ERd
3
1
MOV.L @ERs, ERd
2
2
MOV.L @(d:16, ERs), ERd
3
2
MOV.L @(d:24, ERs), ERd
5
2
MOV.L @ERs+, ERd
2
2
MOV.L @aa:16, ERd
3
2
MOV.L @aa:24, ERd
4
2
MOV.L ERs, @ERd
2
2
MOV.L ERs, @(d:16, ERd)
3
2
MOV.L ERs, @(d:24, ERd)
5
2
MOV.L ERs, @–ERd
2
2
MOV.L ERs, @aa:16
3
2
MOV.L ERs, @aa:24
4
2
2
2
2
1
MOVTPE Rs, @aa:16*2
2
1
MULXS.B Rs, Rd
2
12
MULXS.W Rs, ERd
2
20
MOVTPE
MULXS
MULXU.B Rs, Rd
1
12
MULXU.W Rs, ERd
1
20
NEG.B Rd
1
NEG.W Rd
1
NEG.L ERd
1
NOP
NOP
1
NOT
NOT.B Rd
1
OR
Internal
Operation
N
2
MOVFPE @aa:16, Rd*
NEG
1
MOV.L ERs, ERd
MOVFPE
MULXU
Word Data
Access
M
NOT.W Rd
1
NOT.L ERd
1
OR.B #xx:8, Rd
1
OR.B Rs, Rd
1
OR.W #xx:16, Rd
2
OR.W Rs, Rd
1
OR.L #xx:32, ERd
3
OR.L ERs, ERd
2
Rev.3.00 Mar. 26, 2007 Page 587 of 682
REJ09B0353-0300
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
ORC
ORC #xx:8, CCR
1
POP
PUSH
ROTL
ROTR
ROTXL
ROTXR
POP.W Rn
1
1
2
2
2
2
PUSH.W Rn
1
1
2
PUSH.L ERn
2
2
2
ROTL.B Rd
1
ROTL.W Rd
1
ROTL.L ERd
1
ROTR.B Rd
1
ROTR.W Rd
1
ROTR.L ERd
1
ROTXL.B Rd
1
ROTXL.W Rd
1
ROTXL.L ERd
1
ROTXR.B Rd
1
ROTXR.W Rd
1
1
RTE
RTE
2
RTS
RTS
SHAR
SHLL
SHLR
SLEEP
Internal
Operation
N
POP.L ERn
ROTXR.L ERd
SHAL
Word Data
Access
M
2
2
Normal
2
1
2
Advanced
2
2
2
SHAL.B Rd
1
SHAL.W Rd
1
SHAL.L ERd
1
SHAR.B Rd
1
SHAR.W Rd
1
SHAR.L ERd
1
SHLL.B Rd
1
SHLL.W Rd
1
SHLL.L ERd
1
SHLR.B Rd
1
SHLR.W Rd
1
SHLR.L ERd
1
SLEEP
1
Rev.3.00 Mar. 26, 2007 Page 588 of 682
REJ09B0353-0300
Appendix A Instruction Set
Instruction
Mnemonic
Instruction Branch
Stack
Byte Data
Fetch
Addr. Read Operation Access
I
J
K
L
STC
STC CCR, Rd
1
STC CCR, @ERd
2
1
STC CCR, @(d:16, ERd)
3
1
STC CCR, @(d:24, ERd)
5
1
STC CCR, @–ERd
2
1
STC CCR, @aa:16
3
1
STC CCR, @aa:24
4
1
SUB.B Rs, Rd
1
SUB.W #xx:16, Rd
2
SUB.W Rs, Rd
1
SUB.L #xx:32, ERd
3
SUB.L ERs, ERd
1
SUB
SUBS
SUBS #1/2/4, ERd
1
SUBX
SUBX #xx:8, Rd
1
SUBX Rs, Rd
1
TRAPA
XOR
XORC
TRAPA #x:2
Word Data
Access
M
Internal
Operation
N
2
Normal
2
1
2
4
Advanced
2
2
2
4
XOR.B #xx:8, Rd
1
XOR.B Rs, Rd
1
XOR.W #xx:16, Rd
2
XOR.W Rs, Rd
1
XOR.L #xx:32, ERd
3
XOR.L ERs, ERd
2
XORC #xx:8, CCR
1
Notes: 1. n is the value set in register R4L or R4. The source and destination are accessed n+1
times each.
2. Not used with this LSI.
Rev.3.00 Mar. 26, 2007 Page 589 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
Appendix B Internal I/O Register Field
B.1
Addresses
Address Register
(low)
Name
Data
Bus
Width
Bit Names
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
H'1C
H'1D
H'1E
H'1F
H'20
—
—
—
—
—
—
—
—
—
H'21
—
—
—
—
—
—
—
—
—
H'22
—
—
—
—
—
—
—
—
—
H'23
—
—
—
—
—
—
—
—
—
H'24
—
—
—
—
—
—
—
—
—
H'25
—
—
—
—
—
—
—
—
—
H'26
—
—
—
—
—
—
—
—
—
H'27
—
—
—
—
—
—
—
—
—
H'28
—
—
—
—
—
—
—
—
—
H'29
—
—
—
—
—
—
—
—
—
H'2A
—
—
—
—
—
—
—
—
—
H'2B
—
—
—
—
—
—
—
—
—
H'2C
—
—
—
—
—
—
—
—
—
H'2D
—
—
—
—
—
—
—
—
—
H'2E
—
—
—
—
—
—
—
—
—
H'2F
—
—
—
—
—
—
—
—
—
H'30
—
—
—
—
—
—
—
—
—
H'31
—
—
—
—
—
—
—
—
—
H'32
—
—
—
—
—
—
—
—
—
H'33
—
—
—
—
—
—
—
—
—
H'34
—
—
—
—
—
—
—
—
—
H'35
—
—
—
—
—
—
—
—
—
H'36
—
—
—
—
—
—
—
—
—
H'37
—
—
—
—
—
—
—
—
—
H'38
—
—
—
—
—
—
—
—
—
H'39
—
—
—
—
—
—
—
—
—
H'3A
—
—
—
—
—
—
—
—
—
H'3B
—
—
—
—
—
—
—
—
—
H'3C
—
—
—
—
—
—
—
—
—
H'3D
—
—
—
—
—
—
—
—
—
H'3E
—
—
—
—
—
—
—
—
—
H'3F
—
—
—
—
—
—
—
—
—
Rev.3.00 Mar. 26, 2007 Page 590 of 682
REJ09B0353-0300
Module Name
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Module Name
H'40
FLMCR
8
FWE
SWE
ESU
PSU
EV
PV
E
P
Flash memory
H'41
—
—
—
—
—
—
—
—
—
H'42
EBR
EB7
EB6
EB5
EB4
EB3
EB2
EB1
EB0
H'43
—
—
—
—
—
—
—
—
—
H'44
—
—
—
—
—
—
—
—
—
H'45
—
—
—
—
—
—
—
—
—
H'46
—
—
—
—
—
—
—
—
—
H'47
RAMCR
—
—
—
—
RAMS
RAM2
RAM1
—
H'48
—
—
—
—
—
—
—
—
—
H'49
—
—
—
—
—
—
—
—
—
H'4A
—
—
—
—
—
—
—
—
—
H'4B
—
—
—
—
—
—
—
—
—
H'4C
—
—
—
—
—
—
—
—
—
H'4D
FLMSR
FLER
—
—
—
—
—
—
—
H'4E
—
—
—
—
—
—
—
—
—
H'4F
—
—
—
—
—
—
—
—
—
H'50
—
—
—
—
—
—
—
—
—
H'51
—
—
—
—
—
—
—
—
—
H'52
—
—
—
—
—
—
—
—
—
H'53
—
—
—
—
—
—
—
—
—
H'54
—
—
—
—
—
—
—
—
—
H'55
—
—
—
—
—
—
—
—
—
H'56
—
—
—
—
—
—
—
—
—
H'57
—
—
—
—
—
—
—
—
—
H'58
—
—
—
—
—
—
—
—
—
H'59
—
—
—
—
—
—
—
—
—
H'5A
—
—
—
—
—
—
—
—
—
H'5B
—
—
—
—
—
—
—
—
—
H'5C
—
—
—
—
—
—
—
—
—
H'5D
DIVCR
8
—
—
—
—
—
—
DIV1
DIV0
H'5E
MSTCR
8
PSTOP
—
MSTOP5 MSTOP4 MSTOP3 —
—
MSTOP0
H'5F
—
—
—
—
—
—
8
8
8
Bit Names
—
—
—
System control
Rev.3.00 Mar. 26, 2007 Page 591 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Module Name
H'60
TSTR
8
—
—
—
STR4
STR3
STR2
STR1
STR0
H'61
TSNC
8
—
—
—
SYNC4
SYNC3
SYNC2
SYNC1
SYNC0
ITU
(all channels)
H'62
TMDR
8
MDF
FDIR
PWM4
PWM3
PWM2
PWM1
PWM0
H'63
TFCR
8
—
—
CMD1
CMD0
BFB4
BFA4
BFB3
BFA3
H'64
TCR0
8
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
H'65
TIOR0
8
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Bit Names
H'66
TIER0
8
—
—
—
—
—
OVIE
IMIEB
IMIEA
H'67
TSR0
8
—
—
—
—
—
OVF
IMFB
IMFA
H'68
TCNT0H
16
H'69
TCNT0L
H'6A
GRA0H
H'6B
GRA0L
H'6C
GRB0H
H'6D
GRB0L
16
16
H'6E
TCR1
8
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
H'6F
TIOR1
8
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
H'70
TIER1
8
—
—
—
—
—
OVIE
IMIEB
IMIEA
H'71
TSR1
8
—
—
—
—
—
OVF
IMFB
IMFA
H'72
TCNT1H
16
H'73
TCNT1L
H'74
GRA1H
H'75
GRA1L
H'76
GRB1H
H'77
GRB1L
H'78
TCR2
8
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
H'79
TIOR2
8
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
H'7A
TIER2
8
—
—
—
—
—
OVIE
IMIEB
IMIEA
H'7B
TSR2
8
—
—
—
—
—
OVF
IMFB
IMFA
H'7C
TCNT2H
16
H'7D
TCNT2L
H'7E
GRA2H
H'7F
GRA2L
H'80
GRB2H
H'81
GRB2L
ITU
channel 0
ITU
channel 1
16
16
16
16
Rev.3.00 Mar. 26, 2007 Page 592 of 682
REJ09B0353-0300
ITU
channel 2
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Module Name
H'82
TCR3
8
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
ITU channel 3
H'83
TIOR3
8
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
H'84
TIER3
8
—
—
—
—
—
OVIE
IMIEB
IMIEA
H'85
TSR3
8
—
—
—
—
—
OVF
IMFB
IMFA
H'86
TCNT3H
16
H'87
TCNT3L
H'88
GRA3H
H'89
GRA3L
H'8A
GRB3H
H'8B
GRB3L
H'8C
BRA3H
H'8D
BRA3L
H'8E
BRB3H
H'8F
BRB3L
Bit Names
16
16
16
16
H'90
TOER
8
—
—
EXB4
EXA4
EB3
EB4
EA4
EA3
H'91
TOCR
8
—
—
—
XTGD
—
—
OLS4
OLS3
H'92
TCR4
8
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
H'93
TIOR4
8
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
H'94
TIER4
8
—
—
—
—
—
OVIE
IMIEB
IMIEA
H'95
TSR4
8
—
—
—
—
—
OVF
IMFB
IMFA
H'96
TCNT4H
16
H'97
TCNT4L
H'98
GRA4H
H'99
GRA4L
H'9A
GRB4H
H'9B
GRB4L
H'9C
BRA4H
H'9D
BRA4L
H'9E
BRB4H
H'9F
BRB4L
ITU
(all channel)
ITU channel 4
16
16
16
16
Rev.3.00 Mar. 26, 2007 Page 593 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
H'A0
TPMR
8
—
—
—
—
G3NOV G2NOV G1NOV G0NOV TPC
H'A1
TPCR
8
G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0
H'A2
NDERB
8
NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9
NDER8
H'A3
NDERA
8
NDER7
NDER6
NDER5
NDER4
NDER3
NDER2
NDER1
NDER0
H'A4
NDRB*
8
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
8
NDR15
NDR14
NDR13
NDR12
—
—
—
—
8
NDR7
NDR6
NDR5
NDR4
NDR3
NDR2
NDR1
NDR0
8
NDR7
NDR6
NDR5
NDR4
—
—
—
—
8
—
—
—
—
—
—
—
—
8
—
—
—
—
NDR11
NDR10
NDR9
NDR8
1
1
H'A5
NDRA*
H'A6
NDRB*
H'A7
H'A8
1
1
NDRA*
2
TCSR*
2
Bit Names
Bit 2
Bit 1
Bit 0
8
—
—
—
—
—
—
—
—
8
—
—
—
—
NDR3
NDR2
NDR1
NDR0
8
OVF
WT/IT
TME
—
—
CKS2
CKS1
CKS0
Module Name
WDT
H'A9
TCNT*
8
H'AA
—
—
—
—
—
—
—
—
—
H'AB
RSTCSR* 8
WRST
RSTOE
—
—
—
—
—
—
H'AC
—
—
—
—
—
—
—
—
—
H'AD
—
—
—
—
—
—
—
—
—
H'AE
—
—
—
—
—
—
—
—
—
H'AF
—
—
—
—
—
—
—
—
—
H'B0
SMR
8
C/A
CHR
PE
O/E
STOP
MP
CKS1
CKS0
H'B1
BRR
8
H'B2
SCR
8
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
H'B3
TDR
8
H'B4
SSR
8
TDRE
RDRF
ORER
FER
PER
TEND
MPB
MPBT
H'B5
RDR
8
H'B6
SCMR
8
—
—
—
—
SDIR
SINV
—
SMIF
Smart card
interface
H'B8
SMR
8
C/A
CHR
PE
O/E
STOP
MP
CKS1
CKS0
SCI1
H'B9
BRR
8
—
—
—
—
—
—
—
—
2
SCI0
H'B7
H'BA
SCR
8
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
H'BB
TDR
8
—
—
—
—
—
—
—
—
H'BC
SSR
8
TDRE
RDRF
ORER
FER
PER
TEND
MPB
MPBT
H'BD
RDR
8
—
—
—
—
—
—
—
—
H'BE
—
—
—
—
—
—
—
—
—
H'BF
—
—
—
—
—
—
—
—
—
Rev.3.00 Mar. 26, 2007 Page 594 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
H'C0
P1DDR
8
P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Port 1
H'C1
P2DDR
8
P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR Port 2
H'C2
P1DR
8
P17
P16
P15
P14
P13
P12
P11
P10
Port 1
H'C3
P2DR
8
P27
P26
P25
P24
P23
P22
P21
P20
Port 2
H'C4
P3DDR
8
P37DDR P36DDR P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Port 3
H'C5
—
H'C6
P3DR
H'C7
—
8
Bit Names
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Module Name
—
—
—
—
—
—
—
—
P37
P36
P35
P34
P33
P32
P31
P30
—
—
—
—
—
—
—
—
—
P53DDR P52DDR P51DDR P50DDR Port 5
Port 3
H'C8
P5DDR
8
—
—
—
H'C9
P6DDR
8
—
—
P65DDR P64DDR P63DDR —
—
P60DDR Port 6
H'CA
P5DR
8
—
—
—
—
P53
P52
P51
P50
Port 5
H'CB
P6DR
8
—
—
P65
P64
P63
—
—
P60
Port 6
H'CC
—
—
—
—
—
—
—
—
—
H'CD
P8DDR
8
—
—
—
—
—
—
P81DDR P80DDR Port 8
H'CE
P7DR
8
P77
P76
P75
P74
P73
P72
P71
P70
Port 7
H'CF
P8DR
8
—
—
—
—
—
—
P81
P80
Port 8
H'D0
P9DDR
8
—
—
P95DDR P94DDR P93DDR P92DDR P91DDR P90DDR Port 9
H'D1
PADDR
8
PA7DDR PA6DDR PA5DDR PA4DDR PA3DDR PA2DDR PA1DDR PA0DDR Port A
H'D2
P9DR
8
—
—
P95
P94
P93
P92
P91
P90
Port 9
H'D3
PADR
8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Port A
H'D4
PBDDR
8
PB7DDR —
PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Port B
H'D5
—
—
—
—
—
—
—
—
—
H'D6
PBDR
PB7
—
PB5
PB4
PB3
PB2
PB1
PB0
H'D7
—
—
—
—
—
—
—
—
—
8
H'D8
P2PCR
H'D9
—
8
—
—
—
—
—
—
—
—
H'DA
—
—
—
—
—
—
—
—
—
8
Port B
P27PCR P26PCR P25PCR P24PCR P23PCR P22PCR P21PCR P20PCR Port 2
H'DB
P5PCR
—
—
—
—
P53PCR P52PCR P51PCR P50PCR Port 5
H'DC
—
—
—
—
—
—
—
—
H'DD
—
—
—
—
—
—
—
—
—
H'DE
—
—
—
—
—
—
—
—
—
H'DF
—
—
—
—
—
—
—
—
—
—
Rev.3.00 Mar. 26, 2007 Page 595 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
Address Register
(low)
Name
Data
Bus
Width
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Module Name
H'E0
8
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
A/D
ADDRAH
Bit Names
H'E1
ADDRAL
8
AD1
AD0
—
—
—
—
—
—
H'E2
ADDRBH
8
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
H'E3
ADDRBL
8
AD1
AD0
—
—
—
—
—
—
H'E4
ADDRCH
8
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
H'E5
ADDRCL
8
AD1
AD0
—
—
—
—
—
—
H'E6
ADDRDH
8
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
H'E7
ADDRDL
8
AD1
AD0
—
—
—
—
—
—
H'E8
ADCSR
8
ADF
ADIE
ADST
SCAN
CKS
CH2
CH1
CH0
H'E9
ADCR
8
TRGE
—
—
—
—
—
—
—
H'EA
—
—
—
—
—
—
—
—
—
H'EB
—
—
—
—
—
—
—
—
—
H'EC
—
—
—
—
—
—
—
—
—
H'ED
ASTCR
8
AST7
AST6
AST5
AST4
AST3
AST2
AST1
AST0
H'EE
WCR
8
—
—
—
—
WMS1
WMS0
WC1
WC0
H'EF
WCER
8
WCE7
WCE6
WCE5
WCE4
WCE3
WCE2
WCE1
WCE0
H'F0
—
—
—
—
—
—
—
—
—
H'F1
MDCR
8
—
—
—
—
—
MDS2
MDS1
MDS0
H'F2
SYSCR
8
SSBY
STS2
STS1
STS0
UE
NMIEG
—
RAME
—
—
Bus controller
System control
H'F3
ADRCR
8
A23E
A22E
A21E
—
—
—
H'F4
ISCR
8
—
—
IRQ5SC IRQ4SC —
—
IRQ1SC IRQ0SC Interrupt
controller
H'F5
IER
8
—
—
IRQ5E
IRQ4E
—
—
IRQ1E
IRQ0E
H'F6
ISR
8
—
—
IRQ5F
IRQ4F
—
—
IRQ1F
IRQ0F
H'F7
—
—
—
—
—
—
—
—
—
H'F8
IPRA
8
IPRA7
IPRA6
—
IPRA4
IPRA3
IPRA2
IPRA1
IPRA0
H'F9
IPRB
8
IPRB7
IPRB6
—
—
IPRB3
IPRB2
IPRB1
—
H'FA
—
—
—
—
—
—
—
—
—
H'FB
—
—
—
—
—
—
—
—
—
H'FD
—
—
—
—
—
—
—
—
—
H'FE
—
—
—
—
—
—
—
—
—
H'FF
—
—
—
—
—
—
—
—
—
H'FC
Legend:
ITU:
16-bit integrated timer unit
TPC: Programmable timing pattern controller
WDT: Watchdog timer
SCI: Serial communication interface
A/D: A/D converter
Notes: 1. The address depends on the output trigger setting.
2. For write access to TCSR, TCNT, and RSTCSR, see section 10.2.4, Notes on Register Access.
Rev.3.00 Mar. 26, 2007 Page 596 of 682
REJ09B0353-0300
Bus controller
Appendix B Internal I/O Register Field
B.2
Function
Register
acronym
Register
name
TSTR Timer Start Register
Address to which
the register is mapped
H'60
Name of on-chip
supporting
module
ITU (all channels)
Bit
numbers
Bit
Initial bit
values
7
6
5
4
3
2
1
0
—
—
—
STR4
STR3
STR2
STR1
STR0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Names of the
bits. Dashes
(—) indicate
reserved bits.
Possible types of access
R
Read only
W
Write only
R/W Read and write
Counter start 0
0 TCNT0 is halted
1 TCNT0 is counting
Counter start 1
0 TCNT1 is halted
1 TCNT1 is counting
Full name
of bit
Counter start 2
0 TCNT2 is halted
1 TCNT2 is counting
Counter start 3
0 TCNT3 is halted
1 TCNT3 is counting
Descriptions
of bit settings
Counter start 4
0 TCNT4 is halted
1 TCNT4 is counting
Rev.3.00 Mar. 26, 2007 Page 597 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
FLMCR—Flash Memory Control Register
Flash memory
7
6
5
4
3
2
1
0
FWE
SWE
ESU
PSU
EV
PV
E
P
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
1/0
R
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Bit
Modes
1 to 4,
and 6
H'40
Initial value
Read/Write
Modes Initial value
5 and 7 Read/Write
Program mode
0
Program mode cleared (Initial value)
1
Transition to program mode
[Setting condition]
When FWE = 1, SWE = 1, and PSU = 1
Erase mode
0
Erase mode cleared (Initial value)
1
Transition to erase mode
[Setting condition]
When FWE = 1, SWE = 1, and ESU = 1
Program-verify mode
0
Program-verify mode cleared (Initial value)
1
Transition to program-verify mode
[Setting condition]
When FWE = 1 and SWE = 1
Erase-verify mode
0
Erase-verify mode cleared (Initial value)
1
Transition to erase-verify mode
[Setting condition]
When FWE = 1 and SWE = 1
Program setup
0
Program setup cleared (Initial value)
1
Program setup
[Setting condition]
When FWE = 1 and SWE = 1
Erase setup
0
Erase setup cleared (Initial value)
1
Erase setup
[Setting condition]
When FWE = 1 and SWE = 1
Software write enable bit
0
Program/erase disabled (Initial value)
1
Program/erase enabled
[Setting condition]
When FWE = 1
Flash write enable bit
0
When a low level is input to the FWE pin (hardware protection state)
1
When a high level is input to the FWE pin
Note: This register is used only in the flash memory versions.
Reading the corresponding address in a mask ROM version will always return 1s, and writes to this address are disabled.
Fix the FWE pin low in mode 6.
Rev.3.00 Mar. 26, 2007 Page 598 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
EBR—Erase Block Register
H'42
Flash memory
7
6
5
4
3
2
1
0
EB7
EB6
EB5
EB4
EB3
EB2
EB1
EB0
Modes Initial value
1 to 4,
and 6 Read/Write
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
Modes Initial value
5 to 7 Read/Write
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Bit
Block 7 to 0
0
Block EB7 to EB0 is not selected (Initial value)
1
Block EB7 to EB0 is selected
Note: When not erasing flash memory, EBR should be cleared to H'00.
This register is used only in the flash memory versions. Reading the corresponding address
in a mask ROM version will always return 1s, and writes to this address are disabled.
1s cannot be set in this register in mode 6.
Rev.3.00 Mar. 26, 2007 Page 599 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
RAMCR—RAM Control Register
Bit
H'47
Flash Memory
7
6
5
4
3
2
1
0
—
—
—
—
RAMS
RAM2
RAM1
—
Modes Initial value
1 to 4 Read/Write
1
—
1
—
1
—
1
—
0
R
0
R
0
R
1
—
Modes Initial value
5 to 7 Read/Write
1
—
1
—
1
—
1
—
0
R/W*
0
R/W*
0
R/W*
1
—
Reserved bits
RAM select, RAM2, RAM1
Bit 3
Bit 2
Bit 1
RAM Area
RAM Emulation Status
RAMS RAM2 RAM1
0
0/1
0/1
H'FFF000 to H'FFF3FF
No emulation
1
0
0
H'000000 to H'0003FF
Mapping RAM
1
1
H'000400 to H'0007FF
0
H'000800 to H'000BFF
1
H'000C00 to H'000FFF
Note: This register is used only in the flash memory versions. Reading the corresponding address in
a mask ROM version will always return 1s, and writes to this address are disabled.
* In mode 6 (single-chip normal mode), flash memory emulation by RAM is not supported;
these bits can be modified, but must not be set to 1.
Rev.3.00 Mar. 26, 2007 Page 600 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
FLMSR—Flash Memory Status Register
Bit
H'4D
Flash memory
7
6
5
4
3
2
1
0
FLER
—
—
—
—
—
—
—
Initial value
0
1
1
1
1
1
1
1
Read/Write
R
—
—
—
—
—
—
—
Flash memory error
0 Flash memory write/erase protection is disabled (Initial value)
1 An error has occurred during flash memory writing/erasing
Flash memory error protection is enabled
DIVCR—Division Control Register
Bit
H'5D
System control
7
6
5
7
3
2
1
0
—
—
—
—
—
—
DIV1
DIV0
Initial value
1
1
1
1
1
1
0
0
Read/Write
—
—
—
—
—
—
R/W
R/W
Divide bits 1 and 0
Bit 1 Bit 0 Frequency
DIV1 DIV0 Division Ratio
0
0
1/1initial value
1
1/2
1/4
0
1
1/8
1
Rev.3.00 Mar. 26, 2007 Page 601 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
MSTCR—Module Standby Control Register
Bit
H'5E
7
6
PSTOP
—
Initial value
0
1
0
0
Read/Write
R/W
—
R/W
R/W
5
4
3
System control
2
1
0
—
—
MSTOP0
0
0
0
0
R/W
R/W
R/W
R/W
MSTOP5 MSTOP4 MSTOP3
Module standby 0
0 A/D converter operates normally
1 A/D converter is in standby state
Module standby 3
0 SCI1 operates normally
1 SCI1 is in standby state
Module standby 4
0 SCI0 operates normally
1 SCI0 is in standby state
Module standby 5
0 ITU operates normally
1 ITU is in standby state
φ clock stop
0 φ clock output is enabled
1 φ clock output is disabled
Rev.3.00 Mar. 26, 2007 Page 602 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TSTR—Timer Start Register
Bit
H'60
ITU (all channels)
7
6
5
4
3
2
1
0
—
—
—
STR4
STR3
STR2
STR1
STR0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Counter start 0
0 TCNT0 is halted
1 TCNT0 is counting
Counter start 1
0 TCNT1 is halted
1 TCNT1 is counting
Counter start 2
0 TCNT2 is halted
1 TCNT2 is counting
Counter start 3
0 TCNT3 is halted
1 TCNT3 is counting
Counter start 4
0 TCNT4 is halted
1 TCNT4 is counting
Rev.3.00 Mar. 26, 2007 Page 603 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TSNC—Timer Synchro Register
Bit
H'61
ITU (all channels)
7
6
5
4
3
2
1
0
—
—
—
SYNC4
SYNC3
SYNC2
SYNC1
SYNC0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Timer sync 0
0 TCNT0 operates independently
1 TCNT0 is synchronized
Timer sync 1
0 TCNT1 operates independently
1 TCNT1 is synchronized
Timer sync 2
0 TCNT2 operates independently
1 TCNT2 is synchronized
Timer sync 3
0 TCNT3 operates independently
1 TCNT3 is synchronized
Timer sync 4
0 TCNT4 operates independently
1 TCNT4 is synchronized
Rev.3.00 Mar. 26, 2007 Page 604 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TMDR—Timer Mode Register
Bit
H'62
ITU (all channels)
7
6
5
4
3
2
1
0
—
MDF
FDIR
PWM4
PWM3
PWM2
PWM1
PWM0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PWM mode 0
0 Channel 0 operates normally
1 Channel 0 operates in PWM mode
PWM mode 1
0 Channel 1 operates normally
1 Channel 1 operates in PWM mode
PWM mode 2
0 Channel 2 operates normally
1 Channel 2 operates in PWM mode
PWM mode 3
0 Channel 3 operates normally
1 Channel 3 operates in PWM mode
PWM mode 4
0 Channel 4 operates normally
1 Channel 4 operates in PWM mode
Flag direction
0 OVF is set to 1 in TSR2 when TCNT2 overflows or underflows
1 OVF is set to 1 in TSR2 when TCNT2 overflows
Phase counting mode flag
0 Channel 2 operates normally
1 Channel 2 operates in phase counting mode
Rev.3.00 Mar. 26, 2007 Page 605 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TFCR—Timer Function Control Register
Bit
H'63
ITU (all channels)
7
6
5
4
3
2
1
0
—
—
CMD1
CMD0
BFB4
BFA4
BFB3
BFA3
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Buffer mode A3
0 GRA3 operates normally
1 GRA3 is buffered by BRA3
Buffer mode B3
0 GRB3 operates normally
1 GRB3 is buffered by BRB3
Buffer mode A4
0 GRA4 operates normally
1 GRA4 is buffered by BRA4
Buffer mode B4
0 GRB4 operates normally
1 GRB4 is buffered by BRB4
Combination mode 1 and 0
Bit 5 Bit 4
Operating Mode of Channels 3 and 4
CMD1 CMD0
0
0
Channels 3 and 4 operate normally
1
0
1
Channels 3 and 4 operate together in complementary PWM mode
1
Channels 3 and 4 operate together in reset-synchronized PWM mode
Rev.3.00 Mar. 26, 2007 Page 606 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TCR0—Timer Control Register 0
Bit
H'64
7
6
5
4
3
ITU0
2
1
0
—
CCLR1
CCLR0
TPSC2
TPSC1
TPSC0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
CKEG1 CKEG0
Timer prescaler 2 to 0
Bit 0
Bit 2
Bit 1
TPSC2 TPSC1 TPSC0
0
0
0
1
0
1
1
0
0
1
1
0
1
1
TCNT Clock Source
Internal clock: φ
Internal clock: φ/2
Internal clock: φ/4
Internal clock: φ/8
External clock A: TCLKA input
External clock B: TCLKB input
External clock C: TCLKC input
External clock D: TCLKD input
Clock edge 1 and 0
Bit 4 Bit 3
Counted Edges of External Clock
CKEG1 CKEG0
0
0
Rising edges counted
1
Falling edges counted
1
—
Both edges counted
Counter clear 1 and 0
Bit 6
Bit 5
TCNT Clear Source
CCLR1 CCLR0
0
0
TCNT is not cleared
1
TCNT is cleared by GRA compare match or input capture
1
0
TCNT is cleared by GRB compare match or input capture
1
Synchronous clear: TCNT is cleared in synchronization
with other synchronized timers
Rev.3.00 Mar. 26, 2007 Page 607 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TIOR0—Timer I/O Control Register 0
Bit
H'65
ITU0
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
I/O control A2 to A0
Bit 2 Bit 1 Bit 0
IOA2 IOA1 IOA0
0
0
0
1
0
1
1
0
1
0
1
0
1
1
I/O control B2 to B0
Bit 6 Bit 5 Bit 4
IOB2 IOB1 IOB0
0
0
0
1
0
1
1
0
1
0
1
0
1
1
GRA Function
GRA is an output
compare register
GRA is an input
capture register
No output at compare match
0 output at GRA compare match
1 output at GRA compare match
Output toggles at GRA compare match
GRA captures rising edge of input
GRA captures falling edge of input
GRA captures both edges of input
GRB Function
GRB is an output
compare register
GRB is an input
capture register
Rev.3.00 Mar. 26, 2007 Page 608 of 682
REJ09B0353-0300
No output at compare match
0 output at GRB compare match
1 output at GRB compare match
Output toggles at GRB compare match
GRB captures rising edge of input
GRB captures falling edge of input
GRB captures both edges of input
Appendix B Internal I/O Register Field
TIER0—Timer Interrupt Enable Register 0
Bit
H'66
ITU0
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Input capture/compare match interrupt enable A
0 IMIA interrupt requested by IMFA is disabled
1 IMIA interrupt requested by IMFA is enabled
Input capture/compare match interrupt enable B
0 IMIB interrupt requested by IMFB is disabled
1 IMIB interrupt requested by IMFB is enabled
Overflow interrupt enable
0 OVI interrupt requested by OVF is disabled
1 OVI interrupt requested by OVF is enabled
Rev.3.00 Mar. 26, 2007 Page 609 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TSR0—Timer Status Register 0
Bit
H'67
ITU0
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Input capture/compare match flag A
0 [Clearing condition]
Read IMFA when IMFA = 1, then write 0 in IMFA
1 [Setting conditions]
• TCNT = GRA when GRA functions as a compare
match register.
• TCNT value is transferred to GRA by an input capture
signal, when GRA functions as an input capture register.
Input capture/compare match flag B
0 [Clearing condition]
Read IMFB when IMFB = 1, then write 0 in IMFB
1 [Setting conditions]
• TCNT = GRB when GRB functions as a compare
match register.
• TCNT value is transferred to GRB by an input capture
signal, when GRB functions as an input capture register.
Overflow flag
0 [Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
1 [Setting condition]
TCNT overflowed from H'FFFF to H'0000
Note: * Only 0 can be written to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 610 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TCNT0 H/L—Timer Counter 0 H/L
H'68, H'69
ITU0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Up-counter
GRA0 H/L—General Register A0 H/L
Bit
Initial value
Read/Write
H'6A, H'6B
ITU0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Output compare or input capture register
GRB0 H/L—General Register B0 H/L
H'6C, H'6D
ITU0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Output compare or input capture register
TCR1—Timer Control Register 1
Bit
H'6E
ITU1
7
6
5
4
3
2
1
0
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
Rev.3.00 Mar. 26, 2007 Page 611 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TIOR1—Timer I/O Control Register 1
Bit
H'6F
ITU1
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TIER1—Timer Interrupt Enable Register 1
Bit
H'70
ITU1
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TSR1—Timer Status Register 1
Bit
H'71
ITU1
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Notes: Bit functions are the same as for ITU0.
* Only 0 can be written to clear the flag.
TCNT1 H/L—Timer Counter 1 H/L
H'72, H'73
ITU1
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU0.
Rev.3.00 Mar. 26, 2007 Page 612 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
GRA1 H/L—General Register A1 H/L
H'74, H'75
ITU1
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU0.
GRB1 H/L—General Register B1 H/L
H'76, H'77
ITU1
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU0.
TCR2—Timer Control Register 2
Bit
H'78
ITU2
7
6
5
4
3
2
1
0
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Notes: 1. Bit functions are the same as for ITU0.
2. When channel 2 is used in phase counting mode, the counter clock source selection by
bits CKEG1, CKEG0 and TPSC2 to TPSC0 is ignored.
Rev.3.00 Mar. 26, 2007 Page 613 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TIOR2—Timer I/O Control Register 2
Bit
H'79
ITU2
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
Notes: 1. Bit functions are the same as for ITU0.
2. Channel 2 does not have a compare match toggle output function. If this setting is
used, 1 output will be selected automatically.
TIER2—Timer Interrupt Enable Register 2
Bit
H'7A
ITU2
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
Rev.3.00 Mar. 26, 2007 Page 614 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TSR2—Timer Status Register 2
Bit
H'7B
ITU2
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Bit functions are the
same as for ITU0
Overflow flag
0 [Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
1 [Setting condition]
TCNT overflowed from H'FFFF to H'0000 or underflowed from
H'0000 to H'FFFF
Note: * Only 0 can be written to clear the flag.
TCNT2 H/L—Timer Counter 2 H/L
H'7C, H'7D
ITU2
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Phase counting mode: up/down-counter
Other modes: up-counter
Rev.3.00 Mar. 26, 2007 Page 615 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
GRA2 H/L—General Register A2 H/L
H'7E, H'7F
ITU2
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU0.
GRB2 H/L—General Register B2 H/L
H'80, H'81
ITU2
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU0.
TCR3—Timer Control Register 3
Bit
H'82
ITU3
7
6
5
4
3
2
1
0
—
CCLR1
CCLR0
CKEG1
CLEG0
TPSC2
TPSC1
TPSC0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TIOR3—Timer I/O Control Register 3
Bit
H'83
ITU3
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
Rev.3.00 Mar. 26, 2007 Page 616 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TIER3—Timer Interrupt Enable Register 3
Bit
H'84
ITU3
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TSR3—Timer Status Register 3
Bit
H'85
ITU3
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Bit functions are the
same as for ITU0
Overflow flag
0 [Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
1 [Setting condition]
TCNT overflowed from H'FFFF to H'0000 or underflowed from
H'0000 to H'FFFF
Note: * Only 0 can be written to clear the flag.
TCNT3 H/L—Timer Counter 3 H/L
H'86, H'87
ITU3
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Complementary PWM mode: up/down counter
Other modes: up-counter
Rev.3.00 Mar. 26, 2007 Page 617 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
GRA3 H/L—General Register A3 H/L
H'88, H'89
ITU3
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Output compare or input capture register (can be buffered)
GRB3 H/L—General Register B3 H/L
Bit
Initial value
Read/Write
H'8A, H'8B
ITU3
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Output compare or input capture register (can be buffered)
BRA3 H/L—Buffer Register A3 H/L
H'8C, H'8D
ITU3
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Used to buffer GRA
BRB3 H/L—Buffer Register B3 H/L
H'8E, H'8F
ITU3
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Used to buffer GRB
Rev.3.00 Mar. 26, 2007 Page 618 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TOER—Timer Output Enable Register
Bit
H'90
ITU (all channels)
7
6
5
4
3
2
1
0
—
—
EXB4
EXA4
EB3
EB4
EA4
EA3
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Master enable TIOCA3
0 TIOCA 3 output is disabled regardless of TIOR3, TMDR, and TFCR settings
1 TIOCA 3 is enabled for output according to TIOR3, TMDR, and TFCR settings
Master enable TIOCA4
0 TIOCA 4 output is disabled regardless of TIOR4, TMDR, and TFCR settings
1 TIOCA 4 is enabled for output according to TIOR4, TMDR, and TFCR settings
Master enable TIOCB4
0 TIOCB4 output is disabled regardless of TIOR4 and TFCR settings
1 TIOCB4 is enabled for output according to TIOR4 and TFCR settings
Master enable TIOCB3
0 TIOCB 3 output is disabled regardless of TIOR3 and TFCR settings
1 TIOCB 3 is enabled for output according to TIOR3 and TFCR settings
Master enable TOCXA4
0 TOCXA 4 output is disabled regardless of TFCR settings
1 TOCXA 4 is enabled for output according to TFCR settings
Master enable TOCXB4
0 TOCXB4 output is disabled regardless of TFCR settings
1 TOCXB4 is enabled for output according to TFCR settings
Rev.3.00 Mar. 26, 2007 Page 619 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TOCR—Timer Output Control Register
Bit
H'91
ITU (all channels)
7
6
5
4
3
2
1
0
—
—
—
XTGD
—
—
OLS4
OLS3
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
R/W
—
—
R/W
R/W
Output level select 3
0 TIOCB 3 , TOCXA 4, and TOCXB 4 outputs are inverted
1 TIOCB 3 , TOCXA 4, and TOCXB 4 outputs are not inverted
Output level select 4
0 TIOCA 3 , TIOCA 4, and TIOCB 4 outputs are inverted
1 TIOCA 3 , TIOCA 4, and TIOCB 4 outputs are not inverted
External trigger disable
0 Input capture A in channel 1 is used as an external trigger signal in
reset-synchronized PWM mode and complementary PWM mode*
1 External triggering is disabled
Note: * When an external trigger occurs, bits 5 to 0 in TOER are cleared to 0,
disabling ITU output.
TCR4—Timer Control Register 4
Bit
H'92
ITU4
7
6
5
4
3
2
1
0
—
CCLR1
CCLR0
CKEG1
CKEG0
TPSC2
TPSC1
TPSC0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
Rev.3.00 Mar. 26, 2007 Page 620 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TIOR4—Timer I/O Control Register 4
Bit
H'93
ITU4
7
6
5
4
3
2
1
0
—
IOB2
IOB1
IOB0
—
IOA2
IOA1
IOA0
Initial value
1
0
0
0
1
0
0
0
Read/Write
—
R/W
R/W
R/W
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TIER4—Timer Interrupt Enable Register 4
Bit
H'94
ITU4
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE
IMIEB
IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W
R/W
Note: Bit functions are the same as for ITU0.
TSR4—Timer Status Register 4
Bit
H'95
ITU4
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF
IMFB
IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/(W)*
R/(W)*
R/(W)*
Notes: Bit functions are the same as for ITU0.
* Only 0 can be written to clear the flag.
TCNT4 H/L—Timer Counter 4 H/L
Bit
Initial value
Read/Write
H'96, H'97
ITU4
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU3.
Rev.3.00 Mar. 26, 2007 Page 621 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
GRA4 H/L—General Register A4 H/L
H'98, H'99
ITU4
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU3.
GRB4 H/L—General Register B4 H/L
H'9A, H'9B
ITU4
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU3.
BRA4 H/L—Buffer Register A4 H/L
H'9C, H'9D
ITU4
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU3.
BRB4 H/L—Buffer Register B4 H/L
Bit
Initial value
Read/Write
H'9E, H'9F
ITU4
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Note: Bit functions are the same as for ITU3.
Rev.3.00 Mar. 26, 2007 Page 622 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TPMR—TPC Output Mode Register
Bit
H'A0
TPC
7
6
5
4
—
—
—
—
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
3
2
G3NOV G2NOV
0
1
G1NOV G0NOV
Group 0 non-overlap
0 Normal TPC output in group 0
Output values change at compare match A in the selected ITU channel
1 Non-overlapping TPC output in group 0, controlled by compare match
A and B in the selected ITU channel
Group 1 non-overlap
0 Normal TPC output in group 1
Output values change at compare match A in the selected ITU channel
1 Non-overlapping TPC output in group 1, controlled by compare match
A and B in the selected ITU channel
Group 2 non-overlap
0 Normal TPC output in group 2
Output values change at compare match A in the selected ITU channel
1 Non-overlapping TPC output in group 2, controlled by compare match
A and B in the selected ITU channel
Group 3 non-overlap
0 Normal TPC output in group 3
Output values change at compare match A in the selected ITU channel
1 Non-overlapping TPC output in group 3, controlled by compare match
A and B in the selected ITU channel
Rev.3.00 Mar. 26, 2007 Page 623 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TPCR—TPC Output Control Register
Bit
7
6
H'A1
5
4
3
TPC
2
1
0
G3CMS1 G3CMS0 G2CMS1 G2CMS0 G1CMS1 G1CMS0 G0CMS1 G0CMS0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Group 0 compare match select 1 and 0
Bit 1
Bit 0
ITU Channel Selected as Output Trigger
G0CMS1 G0CMS0
0
1
0
TPC output group 0 (TP3 to TP0) is triggered by compare match in ITU channel 0
1
TPC output group 0 (TP3 to TP0) is triggered by compare match in ITU channel 1
0
TPC output group 0 (TP3 to TP0) is triggered by compare match in ITU channel 2
1
TPC output group 0 (TP3 to TP0) is triggered by compare match in ITU channel 3
Group 1 compare match select 1 and 0
Bit 3
Bit 2
ITU Channel Selected as Output Trigger
G1CMS1 G1CMS0
0
1
0
TPC output group 1 (TP7 to TP4) is triggered by compare match in ITU channel 0
1
TPC output group 1 (TP7 to TP4) is triggered by compare match in ITU channel 1
0
TPC output group 1 (TP7 to TP4) is triggered by compare match in ITU channel 2
1
TPC output group 1 (TP7 to TP4) is triggered by compare match in ITU channel 3
Group 2 compare match select 1 and 0
Bit 5
Bit 4
ITU Channel Selected as Output Trigger
G2CMS1 G2CMS0
0
0
TPC output group 2 (TP11 to TP8) is triggered by compare match in ITU channel 0
1
TPC output group 2 (TP11 to TP8) is triggered by compare match in ITU channel 1
1
0
TPC output group 2 (TP11 to TP8) is triggered by compare match in ITU channel 2
1
TPC output group 2 (TP11 to TP8) is triggered by compare match in ITU channel 3
Group 3 compare match select 1 and 0
Bit 7
Bit 6
G3CMS1 G3CMS0
0
1
ITU Channel Selected as Output Trigger
0
TPC output group 3 (TP15 to TP12)* is triggered by compare match in ITU channel 0
1
TPC output group 3 (TP15 to TP12)* is triggered by compare match in ITU channel 1
0
TPC output group 3 (TP15 to TP12)* is triggered by compare match in ITU channel 2
1
TPC output group 3 (TP15 to TP12)* is triggered by compare match in ITU channel 3
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be output off-chip.
Rev.3.00 Mar. 26, 2007 Page 624 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
NDERB—Next Data Enable Register B
Bit
7
6
5
H'A2
4
3
TPC
2
0
1
NDER15 NDER14 NDER13 NDER12 NDER11 NDER10 NDER9 NDER8
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next data enable 15 to 8
Bits 7 to 0
Description
NDER15 to NDER8
0
TPC outputs TP15 to TP 8* are disabled
(NDR15 to NDR8 are not transferred to PB 7 to PB 0 )
TPC outputs TP15 to TP 8* are enabled
(NDR15 to NDR8 are transferred to PB 7 to PB 0 )
1
Note: * Since this LSI does not have a TP14 pin, the TP14 signal cannot be
output off-chip.
NDERA—Next Data Enable Register A
Bit
7
6
5
H'A3
4
3
TPC
2
0
1
NDER7
NDER6
NDER5
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NDER4 NDER3
NDER2
NDER1 NDER0
Next data enable 7 to 0
Bits 7 to 0
Description
NDER7 to NDER0
0
TPC outputs TP 7 to TP 0 are disabled
(NDR7 to NDR0 are not transferred to PA 7 to PA 0)
TPC outputs TP 7 to TP 0 are enabled
1
(NDR7 to NDR0 are transferred to PA 7 to PA 0)
Rev.3.00 Mar. 26, 2007 Page 625 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
NDRB—Next Data Register B
H'A4/H'A6
TPC
• Same output trigger for TPC output groups 2 and 3
Address H'FFA4
Bit
7
6
5
4
3
2
1
0
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next output data for
TPC output group 3*
Next output data for
TPC output group 2
Address H'FFA6
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
—
—
—
—
—
• Different output triggers for TPC output groups 2 and 3
Address H'FFA4
Bit
7
6
5
4
3
2
1
0
NDR15
NDR14
NDR13
NDR12
—
—
—
—
Initial value
0
0
0
0
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
—
—
—
—
Next output data for
TPC output group 3*
Address H'FFA6
Bit
7
6
5
4
3
2
1
0
—
—
—
—
NDR11
NDR10
NDR9
NDR8
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Next output data for
TPC output group 2
Note:
*
Since this LSI does not have a TP14 pin, the TP14 signal cannot be output off-chip.
Rev.3.00 Mar. 26, 2007 Page 626 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
NDRA—Next Data Register A
H'A5/H'A7
TPC
• Same output trigger for TPC output groups 0 and 1
Address H'FFA5
Bit
7
6
5
4
3
2
1
0
NDR7
NDR6
NDR5
NDR4
NDR3
NDR2
NDR1
NDR0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next output data for
TPC output group 1
Next output data for
TPC output group 0
Address H'FFA7
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
Initial value
1
1
1
1
1
1
1
1
Read/Write
—
—
—
—
—
—
—
—
• Different output triggers for TPC output groups 0 and 1
Address H'FFA5
Bit
7
6
5
4
3
2
1
0
NDR7
NDR6
NDR5
NDR4
—
—
—
—
Initial value
0
0
0
0
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
—
—
—
—
Next output data for
TPC output group 1
Address H'FFA7
Bit
7
6
5
4
3
2
1
0
—
—
—
—
NDR3
NDR2
NDR1
NDR0
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Next output data for
TPC output group 0
Rev.3.00 Mar. 26, 2007 Page 627 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TCSR—Timer Control/Status Register
Bit
H'A8
WDT
7
6
5
4
3
2
1
0
OVF
WT/ IT
TME
—
—
CKS2
CKS1
CKS0
Initial value
0
0
0
1
1
0
0
0
Read/Write
R/(W)*
R/W
R/W
—
—
R/W
R/W
R/W
Clock select 2 to 0
CKS2 CKS1 CKS0
0
0
0
1
1
0
1
0
1
0
1
1
0
1
Timer enable
0 TCNT is initialized to H'00 and halted
1 TCNT is counting
Timer mode select
0 Interval timer: requests interval timer interrupts
1 Watchdog timer: generates a reset signal
Overflow flag
0 [Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF
1 [Setting condition]
TCNT changes from H'FF to H'00
Note: * Only 0 can be written to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 628 of 682
REJ09B0353-0300
Description
φ/2
φ/32
φ/64
φ/128
φ/256
φ/512
φ/2048
φ/4096
Appendix B Internal I/O Register Field
TCNT—Timer Counter
H'A9 (read),
H'A8 (write)
WDT
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Count value
RSTCSR—Reset Control/Status Register
Bit
H'AB (read),
H'AA (write)
WDT
7
6
5
4
3
2
1
0
WRST
RSTOE
—
—
—
—
—
—
Initial value
0
0
1
1
1
1
1
1
Read/Write
R/(W)*
R/W
—
—
—
—
—
—
Reset output enable
0 Reset signal is not output externally
1 Reset signal is output externally
Watchdog timer reset
0 [Clearing condition]
Reset signal input at RES pin, or 0 written by software
1 [Setting condition]
TCNT overflow generates a reset signal
Note: * Only 0 can be written in bit 7 to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 629 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SMR—Serial Mode Register
Bit
H'B0
SCI0
7
6
5
7
3
2
1
0
C/ A
CHR
PE
O/ E
STOP
MP
CKS1
CKS0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock select 1 and 0
Bit 1 Bit 0
Clock Source
CKS1 CKS0
0
0
φ clock
1
φ/4 clock
φ/16 clock
0
1
φ/64 clock
1
Multiprocessor mode
0 Multiprocessor function disabled
1 Multiprocessor format selected
Stop bit length
0 One stop bit
1 Two stop bits
Parity mode
0 Even parity
1 Odd parity
Parity enable
0 Parity bit is not added or checked
1 Parity bit is added and checked
Character length
0 8-bit data
1 7-bit data
Communication mode
0 Asynchronous mode
1 Synchronous mode
Rev.3.00 Mar. 26, 2007 Page 630 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
BRR—Bit Rate Register
H'B1
SCI0
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Serial communication bit rate setting
Rev.3.00 Mar. 26, 2007 Page 631 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SCR—Serial Control Register
Bit
H'B2
SCI0
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock enable 1 and 0
Bit 1 Bit 2
Clock Selection and Output
CKE1 CKE2
0
Asynchronous mode Internal clock, SCK pin available for generic input/output
0
Synchronous mode Internal clock, SCK pin used for serial clock output
Asynchronous mode Internal clock, SCK pin used for clock output
1
Synchronous mode Internal clock, SCK pin used for serial clock output
Asynchronous mode External clock, SCK pin used for clock input
0
1
Synchronous mode External clock, SCK pin used for serial clock input
Asynchronous mode External clock, SCK pin used for clock input
1
Synchronous mode External clock, SCK pin used for serial clock input
Transmit-end interrupt enable
0 Transmit-end interrupt requests (TEI) are disabled
1 Transmit-end interrupt requests (TEI) are enabled
Multiprocessor interrupt enable
0 Multiprocessor interrupts are disabled (normal receive operation)
1 Multiprocessor interrupts are enabled
Transmit enable
0 Transmitting is disabled
1 Transmitting is enabled
Receive enable
0 Receiving is disabled
1 Receiving is enabled
Receive interrupt enable
0 Receive-data-full (RXI) and receive-error (ERI) interrupt requests are disabled
1 Receive-data-full (RXI) and receive-error (ERI) interrupt requests are enabled
Transmit interrupt enable
0 Transmit-data-empty interrupt request (TXI) is disabled
1 Transmit-data-empty interrupt request (TXI) is enabled
Rev.3.00 Mar. 26, 2007 Page 632 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
TDR—Transmit Data Register
H'B3
SCI0
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Serial transmit data
Rev.3.00 Mar. 26, 2007 Page 633 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SSR—Serial Status Register
Bit
H'B4
SCI0
7
6
5
4
3
2
1
0
TDRE
RDRF
ORER
FER
PER
TEND
MPB
MPBT
Initial value
1
0
0
0
0
1
0
0
Read/Write
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R
R
R/W
Multiprocessor bit
0 Multiprocessor bit value in
receive data is 0
1
Transmit end
Multiprocessor bit value in
receive data is 1
Multiprocessor bit transfer
0 Multiprocessor bit value in
transmit data is 0
1
0
[Clearing conditions]
Read TDRE when TDRE = 1, then write 0 in TDRE.
1
[Setting conditions]
Reset or transition to standby mode.
TE is cleared to 0 in SCR.
TDRE is 1 when last bit of serial character is transmitted.
Multiprocessor bit value in
transmit data is 1
Parity error
Framing error
0
[Clearing conditions]
Reset or transition to standby mode.
Read FER when FER = 1, then write 0
in FER.
1
[Setting condition]
Framing error (stop bit is 0)
0
[Clearing conditions]
Reset or transition to standby mode.
Read PER when PER = 1, then write 0 in
PER.
1
[Setting condition]
Parity error: (parity of receive data does not
match parity setting of O/ E in SMR)
Overrun error
Receive data register full
0
[Clearing conditions]
Reset or transition to standby mode.
Read RDRF when RDRF = 1, then write 0 in
RDRF.
1
[Setting condition]
Serial data is received normally and transferred
from RSR to RDR
Transmit data register empty
0
[Clearing conditions]
Read TDRE when TDRE = 1, then write 0 in TDRE.
1
[Setting conditions]
Reset or transition to standby mode.
TE is 0 in SCR
Data is transferred from TDR to TSR, enabling new
data to be written in TDR.
Note: * Only 0 can be written to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 634 of 682
REJ09B0353-0300
0
[Clearing conditions]
Reset or transition to standby mode.
Read ORER when ORER = 1, then write 0 in
ORER.
1
[Setting condition]
Overrun error (reception of next serial data
ends when RDRF = 1)
Appendix B Internal I/O Register Field
RDR—Receive Data Register
H'B5
SCI0
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
Serial receive data
SCMR—Smart Card Mode Register
Bit
H'B6
SCI0
7
6
5
4
3
2
1
0
—
—
—
—
SDIR
SINV
—
SMIF
Initial value
1
1
1
1
0
0
1
0
Read/Write
—
—
—
—
R/W
R/W
—
R/W
Smart card interface mode select
0 Smart card interface function is disabled
1 Smart card interface function is enabled
Smart card data invert
0 Unmodified TDR contents are transmitted
Received data is stored unmodified in RDR
1 Inverted 1/0 logic levels of TDR contents are transmitted
1/0 logic levels of received data are inverted before storage in RDR
Smart card data transfer direction
0 TDR contents are transmitted LSB-first
Received data is stored LSB-first in RDR
1 TDR contents are transmitted MSB-first
Received data is stored MSB-first in RDR
Rev.3.00 Mar. 26, 2007 Page 635 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SMR—Serial Mode Register
Bit
H'B8
SCI1
7
6
5
7
3
2
1
0
C/ A
CHR
PE
O/ E
STOP
MP
CKS1
CKS0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for SCI0.
BRR—Bit Rate Register
H'B9
SCI1
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for SCI0.
SCR—Serial Control Register
Bit
H'BA
SCI1
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE
MPIE
TEIE
CKE1
CKE0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for SCI0.
TDR—Transmit Data Register
H'BB
SCI1
Bit
7
6
5
4
3
2
1
0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note: Bit functions are the same as for SCI0.
Rev.3.00 Mar. 26, 2007 Page 636 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SSR—Serial Status Register
Bit
H'BC
SCI1
7
6
5
4
3
2
1
0
TDRE
RDRF
ORER
FER
PER
TEND
MPB
MPBT
Initial value
1
0
0
0
0
1
0
0
Read/Write
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R
R
R/W
Notes: Bit functions are the same as for SCI0.
* Only 0 can be written to clear the flag.
RDR—Receive Data Register
Bit
7
H'BD
6
5
4
3
SCI1
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
Note: Bit functions are the same as for SCI0.
P1DDR—Port 1 Data Direction Register
Bit
7
6
H'C0
5
4
Port 1
3
2
1
0
P17 DDR P16 DDR P15 DDR P14 DDR P13 DDR P12 DDR P11 DDR P10 DDR
Modes Initial value
1 and 3 Read/Write
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Modes
5 to 7
Port 1 input/output select
0 Generic input pin
1 Generic output pin
Rev.3.00 Mar. 26, 2007 Page 637 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P2DDR—Port 2 Data Direction Register
Bit
7
6
H'C1
5
4
Port 2
3
2
1
0
P27 DDR P26 DDR P25 DDR P24 DDR P23 DDR P22 DDR P21 DDR P20 DDR
Modes Initial value
1 and 3 Read/Write
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
Modes Initial value
5 to 7 Read/Write
0
0
0
0
0
0
0
0
W
W
W
W
W
W
W
W
Port 2 input/output select
0 Generic input pin
1 Generic output pin
P1DR—Port 1 Data Register
Bit
H'C2
Port 1
7
6
5
4
3
2
1
0
P17
P16
P15
P14
P13
P12
P11
P10
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port 1 pins
P2DR—Port 2 Data Register
Bit
H'C3
Port 2
7
6
5
4
3
2
1
0
P27
P26
P25
P24
P23
P22
P21
P20
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port 2 pins
Rev.3.00 Mar. 26, 2007 Page 638 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P3DDR—Port 3 Data Direction Register
Bit
7
6
H'C4
5
4
Port 3
3
2
1
0
P3 7 DDR P3 6 DDR P3 5 DDR P3 4 DDR P3 3 DDR P3 2 DDR P3 1 DDR P3 0 DDR
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port 3 input/output select
0 Generic input pin
1 Generic output pin
P3DR—Port 3 Data Register
Bit
H'C6
Port 3
7
6
5
4
3
2
1
0
P3 7
P3 6
P3 5
P3 4
P3 3
P3 2
P3 1
P3 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port 3 pins
P5DDR—Port 5 Data Direction Register
Bit
H'C8
7
6
5
4
—
—
—
—
3
Port 5
2
1
0
P5 3 DDR P5 2 DDR P5 1 DDR P5 0 DDR
Modes Initial value
1 and 3 Read/Write
1
1
1
1
1
1
1
1
—
—
—
—
—
—
—
—
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
W
W
W
W
Modes
5 to 7
Port 5 input/output select
0 Generic input
1 Generic output
Rev.3.00 Mar. 26, 2007 Page 639 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P6DDR—Port 6 Data Direction Register
Bit
7
6
—
—
Initial value
1
0
Read/Write
—
W
H'C9
2
1
0
P6 5 DDR P6 4 DDR P6 3 DDR
—
—
P6 0 DDR
0
0
0
0
0
0
W
W
W
W
W
W
5
4
3
Port 6
Port 6 input/output select
0 Generic input
1 Generic output
P5DR—Port 5 Data Register
Bit
H'CA
Port 5
7
6
5
4
3
2
1
0
—
—
—
—
P53
P52
P51
P50
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Data for port 5 pins
P6DR—Port 6 Data Register
Bit
H'CB
Port 6
7
6
5
4
3
2
1
0
—
—
P6 5
P6 4
P6 3
—
—
P6 0
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port 6 pins
Rev.3.00 Mar. 26, 2007 Page 640 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P8DDR—Port 8 Data Direction Register
Bit
H'CD
Port 8
7
6
5
4
3
2
—
—
—
—
—
—
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
W
W
W
W
W
1
0
P8 1 DDR P8 0 DDR
Port 8 input/output select
0 Generic input
1 Generic output
P7DR—Port 7 Data Register
Bit
H'CE
Port 7
7
6
5
4
3
2
1
0
P77
P76
P75
P74
P73
P72
P71
P70
Initial value
—*
—*
—*
—*
—*
—*
—*
—*
Read/Write
R
R
R
R
R
R
R
R
Data for port 7 pins
Note: * Determined by pins P77 to P70.
P8DR—Port 8 Data Register
Bit
H'CF
Port 8
7
6
5
4
3
2
1
0
—
—
—
—
—
—
P8 1
P8 0
Initial value
1
1
1
0
0
0
0
0
Read/Write
—
—
—
R/W
R/W
R/W
R/W
R/W
Data for port 8 pins
Rev.3.00 Mar. 26, 2007 Page 641 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P9DDR—Port 9 Data Direction Register
Bit
H'D0
3
Port 9
7
6
—
—
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
W
W
W
W
W
W
4
5
1
2
0
P95DDR P9 4 DDR P93DDR P9 2 DDR P91DDR P9 0 DDR
Port 9 input/output select
0 Generic input
1 Generic output
PADDR—Port A Data Direction Register
Bit
6
7
H'D1
5
4
Port A
3
2
1
0
PA 7 DDR PA 6 DDR PA 5 DDR PA 4 DDR PA 3 DDR PA 2 DDR PA 1 DDR PA 0 DDR
Mode 3
Modes
1 and 5
to 7
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
W
W
W
W
W
W
W
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port A input/output select
0 Generic input
1 Generic output
P9DR—Port 9 Data Register
Bit
H'D2
Port 9
7
6
5
4
3
2
1
0
—
—
P95
P94
P93
P92
P91
P90
Initial value
1
1
0
0
0
0
0
0
Read/Write
—
—
R/W
R/W
R/W
R/W
R/W
R/W
Data for port 9 pins
Rev.3.00 Mar. 26, 2007 Page 642 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
PADR—Port A Data Register
Bit
7
PA 7
6
PA 6
H'D3
5
4
PA 5
PA 4
Port A
3
PA 3
2
PA 2
1
PA 1
0
PA 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port A pins
PBDDR—Port B Data Direction Register
Bit
7
6
PB7 DDR
—
H'D4
4
5
Port B
3
2
1
0
PB5 DDR PB4 DDR PB3 DDR PB2 DDR PB1 DDR PB0 DDR
Initial value
0
0
0
0
0
0
0
0
Read/Write
W
W
W
W
W
W
W
W
Port B input/output select
0 Generic input
1 Generic output
PBDR—Port B Data Register
Bit
H'D6
Port B
7
6
5
4
3
2
1
0
PB 7
—
PB 5
PB 4
PB 3
PB 2
PB 1
PB 0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Data for port B pins
Rev.3.00 Mar. 26, 2007 Page 643 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
P2PCR—Port 2 Input Pull-Up Control Register
Bit
7
6
5
H'D8
4
Port 2
3
2
1
0
P2 7 PCR P2 6 PCR P2 5 PCR P2 4 PCR P2 3 PCR P2 2 PCR P2 1 PCR P2 0 PCR
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Port 2 input pull-up control 7 to 0
0 Input pull-up transistor is off
1 Input pull-up transistor is on
Note: Valid when the corresponding P2DDR bit is cleared to 0 (designating generic input).
P5PCR—Port 5 Input Pull-Up Control Register
Bit
H'DB
Port 5
7
6
5
4
—
—
—
—
2
Initial value
1
1
1
1
0
0
0
0
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
3
1
0
P5 3 PCR P5 2 PCR P5 1 PCR P5 0 PCR
Port 5 input pull-up control 3 to 0
0 Input pull-up transistor is off
1 Input pull-up transistor is on
Note: Valid when the corresponding P5DDR bit is cleared to 0 (designating generic input).
ADDRA H/L—A/D Data Register A H/L
Bit
14
12
H'E0, H'E1
10
8
6
A/D
5
4
3
2
1
0
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 —
—
—
—
—
—
15
13
11
9
7
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
ADDRAH
A/D conversion data
10-bit data giving an
A/D conversion result
Rev.3.00 Mar. 26, 2007 Page 644 of 682
REJ09B0353-0300
ADDRAL
Appendix B Internal I/O Register Field
ADDRB H/L—A/D Data Register B H/L
Bit
14
12
H'E2, H'E3
10
8
6
A/D
5
4
3
2
1
0
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 —
—
—
—
—
—
15
13
11
9
7
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
ADDRBH
ADDRBL
A/D conversion data
10-bit data giving an
A/D conversion result
ADDRC H/L—A/D Data Register C H/L
Bit
14
12
H'E4, H'E5
10
8
6
A/D
5
4
3
2
1
0
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 —
15
13
11
9
7
—
—
—
—
—
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
ADDRCH
ADDRCL
A/D conversion data
10-bit data giving an
A/D conversion result
ADDRD H/L—A/D Data Register D H/L
Bit
14
12
H'E6, H'E7
10
8
6
A/D
5
4
3
2
1
0
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 —
—
—
—
—
—
15
13
11
9
7
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
ADDRDH
ADDRDL
A/D conversion data
10-bit data giving an
A/D conversion result
Rev.3.00 Mar. 26, 2007 Page 645 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ADCR—A/D Control Register
Bit
H'E9
A/D
7
6
5
4
3
2
1
0
TRGE
—
—
—
—
—
—
—
Initial value
0
1
1
1
1
1
1
1
Read/Write
R/W
—
—
—
—
—
—
—
Trigger enable
0 A/D conversion cannot be externally triggered
1 A/D conversion starts at the fall of the external trigger signal ( ADTRG )
Rev.3.00 Mar. 26, 2007 Page 646 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ADCSR—A/D Control/Status Register
Bit
H'E8
A/D
7
6
5
4
3
2
1
0
ADF
ADIE
ADST
SCAN
CKS
CH2
CH1
CH0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/(W)*
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock select
0 Conversion time = 266 states (maximum)
1 Conversion time = 134 states (maximum)
Scan mode
0 Single mode
1 Scan mode
Channel select 2 to 0
Group
Channel
Selection
Selection
CH2
CH1
CH0
0
0
0
1
0
1
1
0
0
1
1
0
1
1
Description
Single Mode
AN 0
AN 1
AN 2
AN 3
AN 4
AN 5
AN 6
AN 7
Scan Mode
AN 0
AN 0, AN 1
AN 0 to AN 2
AN 0 to AN 3
AN 4
AN 4, AN 5
AN 4 to AN 6
AN 4 to AN 7
A/D start
0 A/D conversion is stopped
1 Single mode: A/D conversion starts; ADST is automatically cleared to 0 when
conversion ends
Scan mode: A/D conversion starts and continues, cycling among the selected
channels, until ADST is cleared to 0 by software, by a reset, or by a
transition to standby mode
A/D interrupt enable
0 A/D end interrupt request is disabled
1 A/D end interrupt request is enabled
A/D end flag
0 [Clearing condition]
Read ADF while ADF = 1, then write 0 in ADF
1 [Setting conditions]
Single mode: A/D conversion ends
Scan mode: A/D conversion ends in all selected channels
Note: * Only 0 can be written to clear flag.
Rev.3.00 Mar. 26, 2007 Page 647 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ASTCR—Access State Control Register
Bit
H'ED
Bus controller
7
6
5
4
3
2
1
0
AST7
AST6
AST5
AST4
AST3
AST2
AST1
AST0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Area 7 to 0 access state control
Bits 7 to 0
Number of States in Access Cycle
AST7 to AST0
0
Areas 7 to 0 are two-state access areas
Areas 7 to 0 are three-state access areas
1
WCR—Wait Control Register
Bit
H'EE
Bus controller
7
6
5
4
3
2
1
0
—
—
—
—
WMS1
WMS0
WC1
WC0
Initial value
1
1
1
1
0
0
1
1
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Wait mode select 1 and 0
Bit 3 Bit 2
Wait Mode
WMS1 WMS0
0
0
Programmable wait mode
1
No wait states inserted by
wait-state controller
1
0
1
Pin wait mode 1
Pin auto-wait mode
Rev.3.00 Mar. 26, 2007 Page 648 of 682
REJ09B0353-0300
Wait count 1 and 0
Bit 1 Bit 0
Number of Wait States
WC1 WC0
0
0
No wait states inserted by
wait-state controller
1
1
0
1
1 state inserted
2 states inserted
3 states inserted
Appendix B Internal I/O Register Field
WCER—Wait Controller Enable Register
Bit
H'EF
Bus controller
7
6
5
4
3
2
1
0
WCE7
WCE6
WCE5
WCE4
WCE3
WCE2
WCE1
WCE0
Initial value
1
1
1
1
1
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Wait state controller enable 7 to 0
0 Wait-state control is disabled (pin wait mode 0)
1 Wait-state control is enabled
MDCR—Mode Control Register
Bit
H'F1
System control
7
6
5
4
3
2
1
0
—
—
—
—
—
MDS2
MDS1
MDS0
Initial value
1
1
0
0
0
—*
—*
—*
Read/Write
—
—
—
—
—
R
R
R
Mode select 2 to 0
Bit 1 Bit 0
Bit 2
MD1 MD0
MD2
0
0
1
0
0
1
1
0
0
1
1
1
0
1
Operating mode
—
Mode 1
—
Mode 3
—
Mode 5
Mode 6
Mode 7
Note: * Determined by the state of the mode pins (MD2 to MD0).
Rev.3.00 Mar. 26, 2007 Page 649 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
SYSCR—System Control Register
Bit
H'F2
System control
7
6
5
4
3
2
1
0
SSBY
STS2
STS1
STS0
UE
NMIEG
—
RAME
Initial value
0
0
0
0
1
0
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
RAM enable
0 On-chip RAM is disabled
1 On-chip RAM is enabled
NMI edge select
0 An interrupt is requested at the falling edge of NMI
1 An interrupt is requested at the rising edge of NMI
User bit enable
0 CCR bit 6 (UI) is used as an interrupt mask bit
1 CCR bit 6 (UI) is used as a user bit
Standby timer select 2 to 0
Bit 6 Bit 5 Bit 4
Standby Timer
STS2 STS1 STS0
0
0
0
Waiting time = 8192 states
1
Waiting time = 16384 states
0
Waiting time = 32768 states
1
1
Waiting time = 65536 states
Waiting time = 131072 states
1
0
—
Illegal setting
—
1
Software standby
0 SLEEP instruction causes transition to sleep mode
1 SLEEP instruction causes transition to software standby mode
Rev.3.00 Mar. 26, 2007 Page 650 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ADRCR—Address Control Register
Bit
Modes
1 and
5 to 7
Mode 3
H'F3
Bus controller
7
6
5
4
3
2
1
0
A23E
A22E
A21E
—
—
—
—
—
Initial value
1
1
1
1
1
1
1
0
Read/Write
—
—
—
—
—
—
—
R/W
Initial value
1
1
1
1
1
1
1
0
Read/Write
R/W
R/W
R/W
—
—
—
—
R/W
Address 23 to 21 enable
0 Address output
1 I/O pins other than the above
Rev.3.00 Mar. 26, 2007 Page 651 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ISCR—IRQ Sense Control Register
Bit
7
6
H'F4
5
4
Interrupt controller
3
2
1
0
—
—
—
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
IRQ5SC IRQ4SC
IRQ1SC IRQ0SC
IRQ5, IRQ4, IRQ1 and IRQ0 sense control
0 Interrupts are requested when IRQ5, IRQ4, IRQ1, and IRQ0
inputs are low
1 Interrupts are requested by falling-edge input at IRQ5, IRQ4,
IRQ1 and IRQ0
IER—IRQ Enable Register
Bit
H'F5
Interrupt controller
7
6
5
4
3
2
1
0
—
—
IRQ5E
IRQ4E
—
—
IRQ1E
IRQ0E
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
IRQ5, IRQ4, IRQ1, IRQ0 enable
0 IRQ5, IRQ4, IRQ1 and IRQ0 interrupts are disabled
1 IRQ5, IRQ4, IRQ1 and IRQ0 interrupts are enabled
Rev.3.00 Mar. 26, 2007 Page 652 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
ISR—IRQ Status Register
Bit
H'F6
Interrupt controller
7
6
5
4
3
2
1
0
—
—
IRQ5F
IRQ4F
—
—
IRQ1F
IRQ0F
Initial value
0
0
0
0
0
0
0
0
Read/Write
—
—
R/(W)*
R/(W)*
—
—
R/(W)*
R/(W)*
IRQ5, IRQ4, IRQ1 and IRQ0 flags
Bits 5, 4, 1 and 0
IRQ5F
IRQ4F
IRQ1F
IRQ0F
0
1
Setting and Clearing Conditions
[Clearing conditions]
• Read IRQnF when IRQnF = 1, then write 0 in IRQnF.
• IRQnSC = 0, IRQn input is high, and interrupt exception
handling is carried out.
• IRQnSC = 1 and IRQn interrupt exception handling is
carried out.
[Setting conditions]
• IRQnSC = 0 and IRQn input is low.
• IRQnSC = 1 and IRQn input changes from high to low.
Note: n = 5, 4, 1 and 0
Note: * Only 0 can be written to clear the flag.
Rev.3.00 Mar. 26, 2007 Page 653 of 682
REJ09B0353-0300
Appendix B Internal I/O Register Field
IPRA—Interrupt Priority Register A
Bit
H'F8
Interrupt controller
7
6
5
4
3
2
1
0
IPRA7
IPRA6
—
IPRA4
IPRA3
IPRA2
IPRA1
IPRA0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Priority level A7, A6, A4 to A0
0 Priority level 0 (low priority)
1 Priority level 1 (high priority)
• Interrupt sources controlled by each bit
Interrupt
source
Bit 7
IPRA7
Bit 6
IPRA6
Bit 5
—
Bit 4
IPRA4
Bit 3
IPRA3
Bit 2
IPRA2
Bit 1
IPRA1
Bit 0
IPRA0
IRQ0
IRQ1
—
IRQ4,
IRQ5
WDT
ITU
channel
0
ITU
channel
1
ITU
channel 2
IPRB—Interrupt Priority Register B
Bit
H'F9
Interrupt controller
7
6
5
4
3
2
1
0
IPRB7
IPRB6
—
—
IPRB3
IPRB2
IPRB1
—
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Priority level B7, B6, B3 to B1
0 Priority level 0 (low priority)
1 Priority level 1 (high priority)
• Interrupt sources controlled by each bit
Interrupt
source
Bit 7
IPRB7
Bit 6
IPRB6
Bit 5
—
Bit 4
—
Bit 3
IPRB3
Bit 2
IPRB2
Bit 1
IPRB1
ITU
channel
3
ITU
channel
4
—
—
SCI
channel
0
SCI
channel
1
A/D
—
converter
Rev.3.00 Mar. 26, 2007 Page 654 of 682
REJ09B0353-0300
Bit 0
—
Appendix C I/O Block Diagrams
Appendix C I/O Block Diagrams
C.1
Port 1 Block Diagram
S
R
Q
D
P1nDDR
*
C
WP1D
Modes 6 and 7
Internal address bus
Modes 1, 3, and 5 Reset
Internal data bus (upper)
Software standby Modes 6 and 7
Hardware standby
Reset
R
Q
P1n
P1nDR
D
C
Modes 1, 3, and 5
WP1
RP1
Legend:
WP1D: Write to P1DDR
WP1: Write to port 1
RP1: Read port 1
Notes: n = 0 to 7
* Set priority
Figure C.1 Port 1 Block Diagram
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REJ09B0353-0300
Appendix C I/O Block Diagrams
C.2
Port 2 Block Diagram
Modes
Software standby 6 and 7
Hardware standby
Internal data bus (upper)
R
Q
D
P2nPCR
C
RP2P
WP2P
Reset
Modes 1, 3, and 5
S
R
Q
D
P2nDDR
*
C
WP2D
Reset
Modes 6 and 7
R
Q
P2n
P2nDR
C
Modes
1, 3, and 5
WP2
RP2
Legend:
WP2P: Write to P2PCR
RP2P: Read P2PCR
WP2D: Write to P2DDR
WP2: Write to port 2
RP2:
Read port 2
Notes: n = 0 to 7
* Set priority
Figure C.2 Port 2 Block Diagram
Rev.3.00 Mar. 26, 2007 Page 656 of 682
REJ09B0353-0300
D
Internal address bus
Reset
Appendix C I/O Block Diagrams
Reset
Hardware
standby
Modes 6 and 7
R
Q
D
P3nDDR
Write to external
address
C
WP3D
Internal data bus (lower)
Port 3 Block Diagram
Internal data bus (upper)
C.3
Reset
Modes 6 and 7
R
Q
P3n
P3nDR
D
C
Modes
1, 3, and 5
WP3
RP3
Read external
address
Legend:
WP3D: Write to P3DDR
WP3: Write to port 3
RP3: Read port 3
Note: n = 0 to 7
Figure C.3 Port 3 Block Diagram
Rev.3.00 Mar. 26, 2007 Page 657 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
C.4
Port 5 Block Diagram
Software standby
Hardware standby
Modes
6 and 7
Internal data bus (upper)
R
Q
D
P5nPCR
C
RP5P
WP5P
Modes 1, 3 Reset
S
R
Q
D
P5nDDR
*
C
WP5D
Reset
Modes 6 and 7
R
Q
P5n
P5nDR
C
Modes
1, 3, and 5
WP5
RP5
Legend:
WP5P: Write to P5PCR
RP5P: Read P5PCR
WP5D: Write to P5DDR
WP5: Write to port 5
RP5: Read port 5
Notes: n = 0 to 3
* Set priority
Figure C.4 Port 5 Block Diagram
Rev.3.00 Mar. 26, 2007 Page 658 of 682
REJ09B0353-0300
D
Internal address bus
Reset
Appendix C I/O Block Diagrams
Port 6 Block Diagram
Reset
R
Q
D
P60DDR
C
Modes
6 and 7
WP6D
Reset
R
P60
Q
P60DR
Internal data bus
C.5
Bus controller
WAIT
input
enable
D
C
WP6
RP6
Bus controller
WAIT
output
Legend:
WP6D: Write to P6DDR
WP6: Write to port 6
RP6: Read port 6
Figure C.5 (a) Port 6 Block Diagram (Pin P60)
Rev.3.00 Mar. 26, 2007 Page 659 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
Software standby Modes 6 and 7
Hardware standby
R
Q
D
P6nDDR
C
WP6D
Reset
Modes 6 and 7
R
Q
P6n
Modes
1, 3,
and 5
Internal data bus
Reset
P6nDR
D
C
WP6
AS output
RD output
WR output
RP6
Legend:
WP6D: Write to P6DDR
Write to port 6
WP6:
Read port 6
RP6:
Note: n = 3 to 5
Figure C.5 (b) Port 6 Block Diagram (Pins P63 to P65)
Rev.3.00 Mar. 26, 2007 Page 660 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
Port 7 Block Diagram
Internal data bus
C.6
RP7
P7n
A/D converter
Input enable
Analog input
Legend:
RP7: Read port 7
Note: n = 0 to 7
Figure C.6 Port 7 Block Diagram
Rev.3.00 Mar. 26, 2007 Page 661 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
C.7
Port 8 Block Diagram
R
Q
D
P80DDR
C
WP8D
Reset
Internal data bus
Reset
R
Q
P80
P80DR
D
C
WP8
RP8
Interrupt
controller
IRQ0
input
Legend:
WP8D: Write to P8DDR
WP8: Write to port 8
RP8: Read port 8
Figure C.7(a) Port 8 Block Diagram (Pin P80)
Rev.3.00 Mar. 26, 2007 Page 662 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
R
Q
D
P81DDR
C
WP8D
Reset
Modes
6 and 7
Internal data bus
Reset
R
Q
P81
P81DR
Modes
1, 3, and 5
D
C
WP8
RP8
Interrupt
controller
IRQ1 input
Legend:
WP8D: Write to P8DDR
WP8: Write to port 8
RP8: Read port 8
Figure C.7 (b) Port 8 Block Diagram (Pin P81)
Rev.3.00 Mar. 26, 2007 Page 663 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
C.8
Port 9 Block Diagram
R
Q
D
P90DDR
C
WP9D
Internal data bus
Reset
Reset
R
Q
P90
P90DR
D
SCI0
C
WP9
Output enable
Serial transmit
data
Guard time
RP9
Legend:
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Figure C.8 (a) Port 9 Block Diagram (Pin P90)
Rev.3.00 Mar. 26, 2007 Page 664 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
R
Q
D
P91DDR
C
WP9D
Internal data bus
Reset
Reset
R
Q
P91
P91DR
D
SCI1
C
WP9
Output enable
Serial transmit
data
RP9
Legend:
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Figure C.8 (b) Port 9 Block Diagram (Pin P91)
Rev.3.00 Mar. 26, 2007 Page 665 of 682
REJ09B0353-0300
Reset
R
Q
D
P9nDDR
C
WP9D
Internal data bus
Appendix C I/O Block Diagrams
Reset
SCI
Input
enable
R
Q
P9n
P9nDR
D
C
WP9
RP9
Serial receive
data
Legend:
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Note: n = 2, 3
Figure C.8 (c) Port 9 Block Diagram (Pin P92, P93)
Rev.3.00 Mar. 26, 2007 Page 666 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
R
Q
D
P9nDDR
C
WP9D
Reset
Internal data bus
Reset
SCI
Clock input
enable
R
Q
P9n
P9nDR
D
C
WP9
Clock output
enable
Clock output
RP9
Clock input
Interrupt controller
IRQ4, IRQ5 input
Legend:
WP9D: Write to P9DDR
WP9: Write to port 9
RP9: Read port 9
Note: n = 4 and 5
Figure C.8 (d) Port 9 Block Diagram (Pin P94, P95)
Rev.3.00 Mar. 26, 2007 Page 667 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
Port A Block Diagram
Internal data bus
C.9
Reset
R
Q
D
PAnDDR
C
WPAD
Reset
TPC output
enable
R
PAn
Q
PAnDR
TPC
D
Next data
C
WPA
Output trigger
ITU
RPA
Counter
input
clock
Legend:
WPAD: Write to PADDR
WPA: Write to port A
RPA: Read port A
Note: n = 0 or 1
Figure C.9 (a) Port A Block Diagram (Pins PA0, PA1)
Rev.3.00 Mar. 26, 2007 Page 668 of 682
REJ09B0353-0300
Internal data bus
Appendix C I/O Block Diagrams
Reset
R
Q
D
PAnDDR
C
TPC
WPAD
Reset
TPC output
enable
R
Q
PAn
PAnDR
D
Next data
C
WPA
Output trigger
ITU
Output enable
Compare
match output
Input capture
input
Counter input
clock
RPA
Legend:
WPAD: Write to PADDR
WPA: Write to port A
RPA: Read port A
Note: n = 2 or 3
Figure C.9 (b) Port A Block Diagram (Pins PA2, PA3)
Rev.3.00 Mar. 26, 2007 Page 669 of 682
REJ09B0353-0300
Software standby
Address output enable
Mode 3
Internal data bus
Reset
R
Q
D
PAnDDR
C
WPAD
Internal address bus
Appendix C I/O Block Diagrams
TPC
TPC output
enable
Reset
R
PAn
Q
PAnDR
D
Next data
C
WPA
Output trigger
ITU
Output enable
Compare
match output
RPA
Input capture
input
Legend:
WPAD: Write to PADDR
WPA: Write to port A
RPA: Read port A
Notes: n = 4 to 7
PA7 address output enable is fixed at 1 in mode 3.
Figure C.9 (c) Port A Block Diagram (Pins PA4 to PA7)
Rev.3.00 Mar. 26, 2007 Page 670 of 682
REJ09B0353-0300
Appendix C I/O Block Diagrams
Port B Block Diagram
Internal data bus
C.10
Reset
R
Q
D
PBnDDR
C
TPC
WPBD
Reset
TPC output
enable
R
Q
PBn
PBnDR
D
Next data
C
WPB
Output trigger
ITU
Output enable
Compare
match output
RPB
Input capture
input
Legend:
WPBD: Write to PBDDR
WPB: Write to port B
RPB: Read port B
Note: n = 0 to 3
Figure C.10 (a) Port B Block Diagram (Pins PB0 to PB3)
Rev.3.00 Mar. 26, 2007 Page 671 of 682
REJ09B0353-0300
Internal data bus
Appendix C I/O Block Diagrams
Reset
R
Q
D
PBnDDR
C
TPC
WPBD
Reset
TPC output
enable
R
Q
PBn
PBnDR
D
Next data
C
WPB
Output trigger
ITU
Output enable
Compare
match output
RPB
Legend:
WPBD: Write to PBDDR
WPB: Write to port B
RPB: Read port B
Note: n = 4 or 5
Figure C.10 (b) Port B Block Diagram (Pins PB4, PB5)
Rev.3.00 Mar. 26, 2007 Page 672 of 682
REJ09B0353-0300
Internal data bus
Appendix C I/O Block Diagrams
Reset
R
Q
D
PB7DDR
C
TPC
WPBD
Reset
TPC output
enable
R
PB7
Q
PB7DR
D
Next data
C
WPB
Output trigger
RPB
A/D converter
ADTRG
input
Legend:
WPBD: Write to PBDDR
WPB: Write to port B
RPB: Read port B
Figure C.10 (c) Port B Block Diagram (Pin PB7)
Rev.3.00 Mar. 26, 2007 Page 673 of 682
REJ09B0353-0300
Appendix D Pin States
Appendix D Pin States
D.1
Port States in Each Mode
Table D.1
Port States
Reset
State
Hardware
Standby Mode
Software
Standby Mode
Program Execution
State Sleep Mode
—
Clock
output
T
H
Clock output
—
T*
2
T
T
RESO
1, 3
L
T
T
A7 to A0
5
T
T
keep
Input port (DDR = 0)
T
A7 to A0 (DDR = 1)
6, 7
T
T
keep
I/O port
1, 3
L
T
T
A15 to A8
5
T
T
keep
Input port (DDR = 0)
T
A15 to A8 (DDR = 1)
Pin Name
Mode
φ
RESO*
1
P17 to P10
P27 to P20
P37 to P30
P53 to P50
P60
P65 to P63
6, 7
T
T
keep
I/O port
1, 3, 5
T
T
T
D7 to D0
6, 7
T
T
keep
I/O port
1, 3
L
T
T
A19 to A16
5
T
T
keep
Input port (DDR = 0)
T
A19 to A16 (DDR = 1)
6, 7
T
T
keep
I/O port
1, 3, 5
T
T
keep
I/O port, WAIT
6, 7
T
T
keep
I/O port
1, 3, 5
H
T
T
WR, RD, AS
6, 7
T
T
keep
I/O port
P77 to P70
1, 3, 5 to 7
T
T
T
Input port
P80
1, 3, 5
T
T
keep
I/O port
6, 7
T
T
keep
I/O port
Rev.3.00 Mar. 26, 2007 Page 674 of 682
REJ09B0353-0300
Appendix D Pin States
Pin Name
Mode
Reset
State
Hardware
Standby Mode
Software
Standby Mode
Program Execution
State Sleep Mode
P81
1, 3, 5
T
T
T [DDR = 0]
Input port [DDR = 0]
H [DDR = 1]
H [DDR = 1]
6, 7
T
T
keep
I/O port
P95 to P90
1, 3, 5 to 7
T
T
keep
I/O port
PA 3 to PA 0
1, 3, 5 to 7
T
T
keep
I/O port
PA6 to PA4
3
T
T
[ADRCR = 0]
T
(ADRCR = 0)
A21 to A23
[ADRCR = 1]
keep
(ADRCR = 1)
I/O port
PA7
PB7, PB5 to
PB0
Legend:
H:
L:
T:
keep:
DDR:
ADRCR:
1, 5, 6, 7
T
T
keep
I/O port
3
L
T
T
A20
1, 5, 6, 7
T
T
keep
I/O port
1, 3, 5 to 7
T
T
keep
I/O port
High
Low
High-impedance state
Input pins are in the high-impedance state; output pins maintain their previous state.
Data direction register bit
Address control register
Notes: 1 Mask ROM version. Dedicated FWE input pin for the F-ZTAT version.
2 Low output only when WDT overflows causes a reset.
Rev.3.00 Mar. 26, 2007 Page 675 of 682
REJ09B0353-0300
Appendix D Pin States
D.2
Pin States at Reset
Reset in T1 State
Figure D.1 is a timing diagram for the case in which RES goes low during the T1 state of an
external memory access cycle. As soon as RES goes low, all ports are initialized to the input state.
AS, RD, and WR go high, and the data bus goes to the high-impedance state. The address bus is
initialized to the low output level 0.5 state after the low level of RES is sampled. Sampling of RES
takes place at the fall of the system clock (φ).
Access to external address
T1
T2
T3
φ
RES
Internal
reset signal
Address bus
(modes 1, 3, 5)
AS (modes 1, 3, 5)
RD (read access)
(modes 1, 3, 5)
WR (write access)
(modes 1, 3, 5)
H'000000
High
High
High
Data bus
(write access)
(modes 1, 3, 5)
High impedance
I/O port
(modes 1, 3, 5 to 7)
High impedance
Figure D.1 Reset during Memory Access (Reset during T1 State)
Rev.3.00 Mar. 26, 2007 Page 676 of 682
REJ09B0353-0300
Appendix D Pin States
Reset in T2 State
Figure D.2 is a timing diagram for the case in which RES goes low during the T2 state of an
external memory access cycle. As soon as RES goes low, all ports are initialized to the input state.
AS, RD, and WR go high, and the data bus goes to the high-impedance state. The address bus is
initialized to the low output level 0.5 state after the low level of RES is sampled. The same timing
applies when a reset occurs during a wait state (TW).
Access to external address
T1
T2
T3
φ
RES
Internal
reset signal
Address bus
(modes 1, 3, 5)
H'000000
AS (modes 1, 3, 5)
RD (read access)
(modes 1, 3, 5)
WR (write access)
(modes 1, 3, 5)
Data bus
(write access)
(modes 1, 3, 5)
I/O port
(modes 1, 3, 5 to 7)
High impedance
High impedance
Figure D.2 Reset during Memory Access (Reset during T2 State)
Rev.3.00 Mar. 26, 2007 Page 677 of 682
REJ09B0353-0300
Appendix D Pin States
Reset in T3 State
Figure D.3 is a timing diagram for the case in which RES goes low during the T3 state of an
external memory access cycle. As soon as RES goes low, all ports are initialized to the input state.
AS, RD, and WR go high, and the data bus goes to the high-impedance state. The address bus
outputs are held during the T3 state.The same timing applies when a reset occurs in the T2 state of
an access cycle to a two-state-access area.
Access to external address
T1
T2
T3
φ
RES
Internal
reset signal
Address bus
(modes 1, 3, 5)
H'000000
AS (modes 1, 3, 5)
RD (read access)
(modes 1, 3, 5)
WR (write access)
(modes 1, 3, 5)
Data bus
(write access)
(modes 1, 3, 5)
High impedance
I/O port
(modes 1, 3, 5 to 7)
High impedance
Figure D.3 Reset during Memory Access (Reset during T3 State)
Rev.3.00 Mar. 26, 2007 Page 678 of 682
REJ09B0353-0300
Appendix E Timing of Transition to and Recovery from Hardware Standby Mode
Appendix E Timing of Transition to and Recovery from
Hardware Standby Mode
Timing of Transition to Hardware Standby Mode
(1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low 10
system clock cycles before the STBY signal goes low, as shown below. RES must remain low
until STBY goes low (minimum delay from STBY low to RES high: 0 ns).
STBY
t1 ≥ 10tcyc
t2 ≥ 0 ns
RES
(2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, RES does not have to be
driven low as in (1).
Timing of Recovery from Hardware Standby Mode
Drive the RES signal low approximately 100 ns before STBY goes high.
STBY
t ≥ 100 ns
tOSC
RES
Rev.3.00 Mar. 26, 2007 Page 679 of 682
REJ09B0353-0300
Appendix F Product Lineup
Appendix F Product Lineup
Table F.1
H8/3039 Group Product Lineup
Product Type
H8/3039
Flash memory
version
Mask ROM
version
H8/3038
H8/3037
Mask ROM
version
Mask ROM
version
Part Number
5V
version
Mask ROM
version
Package
(Package Code)
HD64F3039F
HD64F3039F
80-pin QFP (FP-80A)
HD64F3039TE
HD64F3039TE
80-pin TQFP (TFP-80C)
3V
version
HD64F3039VF
HD64F3039VF
80-pin QFP (FP-80A)
HD64F3039VTE
HD64F3039VTE
80-pin TQFP (TFP-80C)
5V
version
HD6433039F
HD6433039(***)F
80-pin QFP (FP-80A)
HD6433039TE
HD6433039(***)TE
80-pin TQFP (TFP-80C)
3V
version
HD6433039VF
HD6433039(***)VF
80-pin QFP (FP-80A)
HD6433039VTE
HD6433039(***)VTE
80-pin TQFP (TFP-80C)
80-pin QFP (FP-80A)
HD6433038F
HD6433038(***)F
HD6433038TE
HD6433038(***)TE
80-pin TQFP (TFP-80C)
3V
version
HD6433038VF
HD6433038(***)VF
80-pin QFP (FP-80A)
HD6433038VTE
HD6433038(***)VTE
80-pin TQFP (TFP-80C)
5V
version
HD6433037F
HD6433037(***)F
80-pin QFP (FP-80A)
HD6433037TE
HD6433037(***)TE
80-pin TQFP (TFP-80C)
5V
version
3V
version
H8/3036
Mark Code
5V
version
3V
version
HD6433037VF
HD6433037(***)VF
80-pin QFP (FP-80A)
HD6433037VTE
HD6433037(***)VTE
80-pin TQFP (TFP-80C)
80-pin QFP (FP-80A)
HD6433036F
HD6433036(***)F
HD6433036TE
HD6433036(***)TE
80-pin TQFP (TFP-80C)
HD6433036VF
HD6433036(***)VF
80-pin QFP (FP-80A)
HD6433036VTE
HD6433036(***)VTE
80-pin TQFP (TFP-80C)
Note: (***) in mask ROM versions is the ROM code.
Rev.3.00 Mar. 26, 2007 Page 680 of 682
REJ09B0353-0300
Appendix G Package Dimensions
Appendix G Package Dimensions
The package dimension that is shown in the Renesas Semiconductor Package Data Book has
priority.
JEITA Package Code
P-QFP80-14x14-0.65
RENESAS Code
PRQP0080JB-A
Previous Code
FP-80A/FP-80AV
MASS[Typ.]
1.2g
HD
*1
D
60
41
61
NOTE)
1. DIMENSIONS"*1"AND"*2"
DO NOT INCLUDE MOLD FLASH
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
40
bp
c
c1
HE
*2
E
b1
Reference Dimension in Millimeters
Symbol
Terminal cross section
ZE
Min
21
80
1
c
A
F
A2
20
ZD
θ
A1
L
L1
Detail F
e
*3
y
bp
x
M
D
E
A2
HD
HE
A
A1
bp
b1
c
c1
θ
e
x
y
ZD
ZE
L
L1
Nom Max
14
14
2.70
16.9 17.2 17.5
16.9 17.2 17.5
3.05
0.00 0.10 0.25
0.24 0.32 0.40
0.30
0.12 0.17 0.22
0.15
0°
8°
0.65
0.12
0.10
0.83
0.83
0.5 0.8 1.1
1.6
Figure G.1 Package Dimensions (FP-80A)
Rev.3.00 Mar. 26, 2007 Page 681 of 682
REJ09B0353-0300
Appendix G Package Dimensions
JEITA Package Code
P-TQFP80-12x12-0.50
RENESAS Code
PTQP0080KC-A
Previous Code
TFP-80C/TFP-80CV
MASS[Typ.]
0.4g
HD
*1
D
60
41
61
NOTE)
1. DIMENSIONS"*1"AND"*2"
DO NOT INCLUDE MOLD FLASH
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
40
bp
c
c1
HE
*2
E
b1
Reference Dimension in Millimeters
Symbol
Terminal cross section
ZE
F
c
A2
Index mark
A
20
1
ZD
θ
A1
L
L1
e
*3
y
bp
Detail F
x
M
Figure G.2 Package Dimensions (TFP-80C)
Rev.3.00 Mar. 26, 2007 Page 682 of 682
REJ09B0353-0300
Nom Max
12
12
1.00
13.8 14.0 14.2
13.8 14.0 14.2
1.20
0.00 0.10 0.20
0.17 0.22 0.27
0.20
0.12 0.17 0.22
0.15
0°
8°
0.5
0.10
0.10
1.25
1.25
0.4 0.5 0.6
1.0
Min
21
80
D
E
A2
HD
H1
A
A1
bp
b1
c
c1
θ
e
x
y
ZD
ZE
L
L1
Renesas 16-Bit Single-Chip Microcomputer
Hardware Manual
H8/3039 Group, H8/3039F-ZTAT™
Publication Date: 1st Edition, December 1997
Rev.3.00, March 26, 2007
Published by:
Sales Strategic Planning Div.
Renesas Technology Corp.
Edited by:
Customer Support Department
Global Strategic Communication Div.
Renesas Solutions Corp.
2007. Renesas Technology Corp., All rights reserved. Printed in Japan.
Sales Strategic Planning Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
RENESAS SALES OFFICES
http://www.renesas.com
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
Renesas Technology America, Inc.
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Tel: <1> (408) 382-7500, Fax: <1> (408) 382-7501
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Colophon 6.0
H8/3039 Group, H8/3039F-ZTAT™
Hardware Manual
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REJ09B0353-0300