Data Sheet(eng)

EM78P528N
8-Bit Microprocessor
with OTP ROM
Product
Specification
DOC. VERSION 1.2
ELAN MICROELECTRONICS CORP.
March 2013
Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation
Copyright © 2011 ~ 2013 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes no
responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN Microelectronics
makes no commitment to update, or to keep current the information and material contained in this specification.
Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not
be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information
or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Hong Kong:
USA:
No. 12, Innovation 1 Road
Hsinchu Science Park
Hsinchu, TAIWAN 30076
Tel: +886 3 563-9977
Fax: +886 3 563-9966
[email protected]
http://www.emc.com.tw
Elan (HK) Microelectronics
Corporation, Ltd.
Flat A, 19F., World Tech Centre
95 How Ming Street, Kwun Tong
Kowloon, HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
Elan Information
Technology Group
(U.S.A.)
PO Box 601
Cupertino, CA 95015
U.S.A.
Tel: +1 408 366-8225
Fax: +1 408 366-8225
Korea:
Shenzhen:
Shanghai:
Elan Korea Electronics
Company, Ltd.
Elan Microelectronics
Shenzhen, Ltd.
ELAN Microelectronics
Shanghai, Ltd.
301 Dong-A Building
632 Kojan-Dong, Namdong-ku
Incheon City, KOREA
Tel: +82 32 814-7730
Fax: +82 32 813-7730
8A Floor, Microprofit Building
Gaoxin South Road 6
Shenzhen Hi-tech Industrial Park
South Area, Shenzhen
CHINA 518057
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
[email protected]
6F, Ke Yuan Building
No. 5 Bibo Road
Zhangjiang Hi-Tech Park
Shanghai, CHINA 201203
Tel: +86 21 5080-3866
Fax: +86 21 5080-0273
[email protected]
Headquarters:
st
Contents
Contents
1
General Description .................................................................................................. 1
2
Features ..................................................................................................................... 1
3
Pin Configuration (Package) .................................................................................... 2
4
Pin Description.......................................................................................................... 4
5
Functional Block Diagram...................................................................................... 10
6
Functional Description ............................................................................................11
6.1
Operational Registers....................................................................................... 11
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.1.11
6.1.12
6.1.13
6.1.14
6.1.15
6.1.16
6.1.17
6.1.18
6.1.19
6.1.20
6.1.21
6.1.22
6.1.23
6.1.24
6.1.25
6.1.26
6.1.27
6.1.28
6.1.29
6.1.30
6.1.31
R0 IAR (Indirect Addressing Register).............................................................. 11
R1 BSR (Bank Selection Control Register) ...................................................... 11
R2 PCL (Program Counter Low)....................................................................... 11
R3 SR (Status Register).................................................................................... 17
R4 RSR (RAM Select Register) ........................................................................ 17
Bank 0 R5 ~ RA Port 5 ~ Port A........................................................................ 17
Bank 0 RB~RD IOCR5 ~ IOCR7 ...................................................................... 18
Bank 0 RE OMCR (Operating Mode Control Register) .................................... 18
Bank 0 RF EIESCR (External Interrupt Edge Select Control Register)............ 20
Bank 0 R10 WUCR1 (Wake-up Control Register 1) ......................................... 21
Bank 0 R11 WUCR2 (Wake-up Control Register 2) ......................................... 21
Bank 0 R12 WUCR3 (Wake-up Control Register 3) ......................................... 22
Bank 0 R14 SFR1 (Status Flag Register 1) ...................................................... 22
Bank 0 R15 SFR2 (Status Flag Register 2) ...................................................... 23
Bank 0 R17 SFR4 (Status Flag Register 4) ...................................................... 23
Bank 0 R18 SFR5 (Status Flag Register 5) ...................................................... 24
Bank 0 R1B IMR1 (Interrupt Mask Register 1) ................................................. 24
Bank 0 R1C IMR2 (Interrupt Mask Register 2) ................................................. 25
Bank 0 R1E IMR4 (Interrupt Mask Register 4) ................................................. 26
Bank 0 R1F IMR5 (Interrupt Mask Register 5) ................................................. 27
Bank 0 R21 WDTCR (Watchdog Timer Control Register) ................................ 27
Bank 0 R22 TCCCR (TCC Control Register).................................................... 28
Bank 0 R23 TCCD (TCC Data Register) .......................................................... 29
Bank 0 R24 TC1CR1 (Timer/Counter 1 Control Register 1)............................. 29
Bank 0 R25 TC1CR2 (Timer/Counter 1 Control Register 2)............................. 30
Bank 0 R26 TC1DA (Timer/Counter 1 Data Buffer A)....................................... 32
Bank 0 R27 TC1DB (Timer/Counter 1 Data Buffer B) ...................................... 32
Bank 0 R28 TC2CR1 (Timer/Counter 2 Control Register 1)............................. 32
Bank 0 R29 TC2CR2 (Timer/Counter 2 Control Register 2)............................. 33
Bank 0 R2A TC2DA (Timer/Counter 2 Data Buffer A)....................................... 34
Bank 0 R2B TC2DB (Timer/Counter 2 Data Buffer B) ...................................... 34
Product Specification (V1.2) 03.29.2013
• iii
Contents
6.1.32
6.1.33
6.1.34
6.1.35
6.1.36
6.1.37
6.1.38
6.1.39
6.1.40
6.1.41
6.1.42
6.1.43
6.1.44
6.1.45
6.1.46
6.1.47
6.1.48
6.1.49
6.1.50
6.1.51
6.1.52
6.1.53
6.1.54
6.1.55
6.1.56
6.1.57
6.1.58
6.1.59
6.1.60
6.1.61
6.1.62
6.1.63
6.1.64
6.1.65
6.1.66
6.1.67
6.1.68
6.1.69
6.1.70
6.1.71
6.1.72
iv •
Bank 0 R2C TC3CR1 (Timer/Counter 3 Control Register 1) ............................ 35
Bank 0 R2D TC3CR2 (Timer/Counter 3 Control Register 2) ............................ 36
Bank 0 R2E TC3DA (Timer/Counter 3 Data Buffer A) ...................................... 37
Bank 0 R2F TC3DB (Timer/Counter 3 Data Buffer B) ...................................... 37
Bank 0 R30 I2CCR1 (I2C Status and Control Register 1) ................................ 37
Bank 0 R31 I2CCR2 (I2C Status and Control Register 2) ................................ 38
Bank 0 R32 I2CSA (I2C Slave Address Register) ............................................ 39
Bank 0 R33 I2CDB (I2C Data Buffer Register) ................................................. 39
Bank 0 R34 I2CDAL (I2C Device Address Register) ........................................ 39
Bank 0 R35 I2CDAH (I2C Device Address Register) ....................................... 40
Bank 0 R36 SPICR (SPI Control Register)....................................................... 40
Bank 0 R37 SPIS (SPI Status Register) ........................................................... 41
Bank 0 R38 SPIR (SPI Read Buffer Register).................................................. 42
Bank 0 R39 SPIW (SPI Write Buffer Register) ................................................. 42
Bank 0 R3E ADCR1 (Analog-to-Digital Converter Control Register 1)............. 42
Bank 0 R3F ADCR2 (Analog-to-Digital Converter Control Register 2)............. 43
Bank 0 R40 ADISR (Analog-to-Digital Converter Input
Channel Select Register) ..................................................................................44
Bank 0 R41 ADER1 (Analog-to-Digital Converter Input Control Register 1) .... 45
Bank 0 R42 ADER2 (Analog-to-Digital Converter Input Control Register 2) .... 46
Bank 0 R43 ADDL (Low Byte of Analog-to-Digital Converter Data).................. 47
Bank 0 R44 ADDH (High Byte of Analog-to-Digital Converter Data) ................ 47
Bank 0 R45 ADCVL (Low Byte of Analog-to-Digital Converter
Compare Value) ................................................................................................47
Bank 0 R46 ADCVH (High Byte of Analog-to-Digital Converter
Compare Value) ................................................................................................48
Bank 0 R48 LCDCR1 (LCD Driver Control Register 1) .................................... 48
Bank 0 R49 LCDCR2 (LCD Driver Control Register 2) .................................... 49
Bank 0 R4A LCDCR3 (LCD Driver Control Register 3) .................................... 50
Bank 0 R4B LCDADDR (Address of LCD RAM) .............................................. 50
Bank 0 R4C LCDDB (Data of LCD RAM) ......................................................... 50
Bank 0 R4D LCDSCR0 (LCD COM/SEG Pin Control Register 0).................... 51
Bank 0 R4E LCDSCR1 (LCD SEG Pin Control Register 1) ............................. 52
Bank 0 R4F LCDSCR2 (LCD Segment Control Register 2)............................. 52
Bank 1 R5~R7 IOCR8~IOCA............................................................................ 52
Bank 1 R8 P5PHCR (Port 5 Pull-high Control Register) .................................. 53
Bank 1 R9 P6PHCR (Port 6 Pull-high Control Register) .................................. 53
Bank 1 RA P789APHCR (Port 7~A Pull-high Control Register) ....................... 53
Bank 1 RB P5PLCR (Port 5 Pull-low Control Register) .................................... 54
Bank 1 RC P6PLCR (Port 6 Pull-low Control Register).................................... 54
Bank 1 RD P789APLCR (Port 7~A Pull-low Control Register) ......................... 54
Bank 1 RE P5HDSCR (Port 5 High Drive/Sink Control Register) .................... 55
Bank 1 RF P6HDSCR (Port 6 High Drive/Sink Control Register)..................... 55
Bank 1 R10 P789AHDSCR (Port 7~A High Drive/Sink Control Register) ........ 55
Product Specification (V1.2) 03.29.2013
Contents
6.1.73
6.1.74
6.1.75
6.1.76
6.1.77
6.1.78
6.1.79
6.1.80
6.1.81
6.1.82
6.1.83
6.1.84
6.1.85
6.1.86
6.1.87
6.1.88
Bank 1 R11 P5ODCR (Port 5 Open-drain Control Register) ............................ 56
Bank 1 R12 P6ODCR (Port 6 Open-drain Control Register)............................ 56
Bank 1 R13 P789AODCR (Port 7~A Open-drain Control Register) ................. 56
Bank 1 R33 URCR (UART Control Register).................................................... 57
Bank 1 R34 URS (UART Status Register) ........................................................ 58
Bank 1 R35 URTD (UART Transmit Data Buffer Register)............................... 58
Bank 1 R36 URRDL (UART Receive Data Low Buffer Register) ..................... 59
Bank 1 R37 URRDH (UART Receive Data High Buffer Register).................... 59
Bank 1 R40 WCR (Watch Timer Control Register) ........................................... 59
Bank 1 R45 TBPTL (Table Pointer Low Register)............................................. 59
Bank 1 R46 TBPTH (Table Pointer High Register) ........................................... 60
Bank 1 R47 STKMON (Stack Monitor).............................................................. 60
Bank 1 R48 PCH (Program Counter High) ....................................................... 60
Bank 1 R49 LVDCR (Low Voltage Detector Control Register) ......................... 60
Bank 1 R4A~R4C: (Reserve)............................................................................ 61
Bank 0 R50~R7F, Bank 0~3 R80~RFF............................................................. 61
6.2
TCC/WDT and Prescaler.................................................................................. 61
6.3
I/O Ports ........................................................................................................... 62
6.4
Reset and Wake-up.......................................................................................... 65
6.4.1
6.4.2
Reset................................................................................................................. 65
Status of RST, T, and P of the Status Register.................................................. 70
6.5
Interrupt ............................................................................................................ 85
6.6
A/D Converter................................................................................................... 87
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.6.6
6.6.7
6.7
Timer ................................................................................................................ 95
6.7.1
6.7.2
6.7.3
6.7.4
6.7.5
6.8
ADC Data Register............................................................................................ 88
A/D Sampling Time ........................................................................................... 88
A/D Conversion Time ........................................................................................ 89
ADC Operation during Sleep Mode .................................................................. 90
Programming Process/Considerations ............................................................. 90
Programming Process for Detecting Internal VDD ........................................... 91
Sample Demo Programs................................................................................... 93
Timer/Counter Mode ......................................................................................... 96
Window Mode ................................................................................................... 97
Capture Mode ................................................................................................... 98
Programmable Divider Output Mode and Pulse Width Modulation Mode ........ 99
Buzzer Mode ................................................................................................... 100
UART (Universal Asynchronous Receiver/Transmitter).................................. 101
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
UART Mode .................................................................................................... 102
Transmitting .................................................................................................... 103
Receiving ........................................................................................................ 103
Baud Rate Generator...................................................................................... 104
UART Timing................................................................................................... 104
Product Specification (V1.2) 03.29.2013
•v
Contents
6.9
SPI (Serial Peripheral Interface)..................................................................... 104
6.9.1
6.9.2
6.9.3
6.9.4
Overview and Feature..................................................................................... 105
SPI Functional Description.............................................................................. 106
SPI Signal and Pin Description ....................................................................... 108
SPI Mode Timing............................................................................................. 109
6.10 I2C Function.................................................................................................... 110
6.10.1 Master Mode ................................................................................................... 117
6.10.2 Slave Mode ..................................................................................................... 117
6.11 Liquid Crystal Display Driver (LCD Driver) ..................................................... 117
6.12 LVD (Low Voltage Detector) ........................................................................... 126
6.13 Oscillator ........................................................................................................ 128
6.13.1 Oscillator Modes ............................................................................................. 128
6.13.2 Crystal Oscillator/Ceramic Resonators (XTAL)............................................... 129
6.13.3 Internal RC Oscillator Mode............................................................................ 131
6.14 Power-on Considerations ............................................................................... 131
6.15 External Power-on Reset Circuit .................................................................... 131
6.16 Residue-Voltage Protection ............................................................................ 132
6.17 Code Option ................................................................................................... 133
6.17.1
6.17.2
6.17.3
6.17.4
Code Option Register (Word 0) ...................................................................... 133
Code Option Register (Word 1) ...................................................................... 134
Code Option Register (Word 2) ...................................................................... 136
Code Option Register (Word 3) ...................................................................... 137
6.18 Instruction Set ................................................................................................ 138
7
Absolute Maximum Ratings ................................................................................. 140
8
DC Electrical Characteristics ............................................................................... 140
8.1
AD Converter Characteristics......................................................................... 142
8.2
VREF 2V/3V/4V Characteristics..................................................................... 143
9
AC Electrical Characteristics ............................................................................... 144
10
Timing Diagrams ................................................................................................... 145
vi •
Product Specification (V1.2) 03.29.2013
Contents
APPENDIX
A
Ordering and Manufacturing Information ........................................................... 146
B
Package Type......................................................................................................... 147
C
Package Information............................................................................................. 148
C.1 EM78P528NQ44 ............................................................................................ 148
C.2 EM78P528NL44 ............................................................................................. 149
C.3 EM78P528NL48 ............................................................................................. 150
D
Quality Assurance and Reliability ....................................................................... 151
D.1 Address Trap Detect....................................................................................... 151
E
EM78P528N Program Pin List .............................................................................. 152
F
ICE 400 Oscillator Circuit (JP3) ........................................................................... 152
F.1
Mode 1 ........................................................................................................... 152
F.2
Mode 2 ........................................................................................................... 153
F.3
Mode 3 ........................................................................................................... 153
F.4
Mode 4 ........................................................................................................... 153
Product Specification (V1.2) 03.29.2013
• vii
Contents
Specification Revision History
Doc. Version
1.0
Revision Description
Date
Initial released version
2011/03/18
1. Modified the CPU change operating mode description.
1.1
2. Modified the ADC description.
3. Modified Figure 6-3. CPU Operation Mode.
2012/02/08
4. Modified the LVD power consumption.
1.2
viii •
Added LVR specifications
2013/03/29
Product Specification (V1.2) 03.29.2013
EM78P528N
8-Bit Microprocessor with OTP ROM
1
General Description
The EM78P528N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS
technology. It is used for 15 bits kernel simulation and it simulates the 8K×15-bit programmable ROM.
Using the UIT400N, users can develop their program for ELAN’s several OTP types of IC.
2
„
Features
•
•
•
•
•
•
•
•
•
„
„
CPU configuration
Support 8K×15 bits program ROM
selective signal sources and trigger edges
(48+512) bytes general purpose register
• 15+1 channels Analog-to-Digital Converter with
32 bytes LCD RAM
12-bit resolution + 1 internal reference for Vref
8-level stacks for subroutine nesting
• LCD: 8×23 dots, bias (1/2, 1/3), duty (static, 1/3,
1/4, 1/8)
Less than 1mA at 5V/4MHz
• Three 8-bit timers (TC1/TC2/TC3) with six modes:
Typically 15 μA at 3V/16kHz
Typically 22 μA, at 3V/32kHz
Typically 2 μA during sleep mode
Four CPU operation modes: Normal, Sleep, Green,
Idle
I/O port configuration
•
• Six bidirectional I/O ports: P5~P9, PA
• Four programmable pin change wake-up ports :
•
•
P5~P8
•
•
•
•
Six programmable pull-down I/O ports: P5~P9, PA
•
Six programmable pull-high I/O ports: P5~P9, PA
Six programmable open-drain I/O ports: P5~P9, PA
•
Six programmable high-sink/drive I/O ports: P5~P9,
PA
voltage reset POR: 1.8V (Default), LVR: 4.0, 3.5, 2.7V
Operating voltage range:
• High EFT immunity
• 2.1V~5.5V at 0°C~70°C (commercial)
• 2.3V~5.5V at -40°C~85°C (industrial)
„
„
DC~16 MHz at 5V; DC~8 MHz at 3V; DC~4 MHz at 2.1V
• IRC mode:
DC~16 MHz at 5V; DC~8 MHz at 3V; DC~4 MHz at 2.1V
Drift Rate
Total
1 MHz
±2%
±1%
±1%
±4%
4 MHz
±2%
±1%
±1%
±4%
8 MHz
±2%
±1%
±1%
±4%
16 MHz
±2%
±1%
±1%
±4%
Sub oscillator:
• Crystal mode: 32.768kHz
• IRC mode: 16k/32kHz
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
sleep mode)
LVD interrupt
TCC overflow interrupt
Three timer interrupt
ADC completion interrupt
I2C transfer/receive interrupt
UART TX, RX , RX error interrupt
SPI interrupt
Watch timer interrupt
Single instruction cycle commands
Package Type:
•
•
•
•
•
•
•
•
• Crystal mode:
Temperature
Voltage
Process
(-40°C ~+85°C) (2.5V~5.5V)
25 available interrupts (12 external, 13 internal)
• 10 external interrupts
• Input-port status changed interrupt (wake up from
Operating frequency range (base on 2 clocks):
Main oscillator:
Internal RC
Frequency
Timer/Counter/Capture/Window/Buzzer/PWM/
PDO (Programmable Divider Output) modes.
Timers 1 and 2 can be cascaded to one 16-bit
counter/timer
Universal Asynchronous Receiver/Transmitter
(UART)
Serial transmitter/receiver interface (SPI): 3-wire
synchronous communication
I2C function with 7/10-bit address and 8-bit data
transmit/receive mode
Four programmable watch timer: 1.0 sec, 0.5 sec,
0.25 sec, 3.91 ms
Four programmable Level Voltage Detector
LVD: 4.5V, 4.0V, 3.3V, 2.2V
• Power-on reset and three programmable level
• 10 external interrupt pins
„
Peripheral configuration
• 8-bit Real Time Clock/Counter (TCC) with
„
„
• 44-pin QFP 10x10mm :
• 44-pin LQFP 10x10mm :
• 48-pin LQFP 7x7mm :
EM78P528NQ44J
EM78P528NL44J
EM78P528NL48J
Note: These are Green Products which do not contain
hazardous substances.
•1
EM78P528N
8-Bit Microprocessor with OTP ROM
3
Pin Configuration (Package)
Figure 3-1 44-pin QFP 10x10mm EM78P528NQ44/L44
2•
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
PA5/SEG21
PA4/SEG20
PA3/SEG19
PA1/SEG17/TX/*SCL
PA0/SEG16/RX/*SDA
P97/SEG15
P96/SEG14
P94/SEG12/AD13
P93/SEG11/INT7/AD12
P92/SEG10/INT6/AD11
48
47
46
45 44
43
42
41 40 39
38
37
36
P95/SEG13/AD14
PA6/SEG22
*: Optional selection
PA2/SEG18/INT0
1
CLK/P50/INT1/TC1OUT
2
35
P90/SEG8/INT4/AD9
DATA/P51/INT2/TC1IN
3
34
P87/SEG7//SS
P52/INT3/TCC
4
33
P86/SEG6/SCK/SCL
VDD/VDD
5
32
P85/SEG5/SO
VSS/VSS
6
31
P84/SEG4/SI/SDA
P53/OSCO
7
30
P83/SEG3
P54/OSCI/RCOUT
8
29
P82/SEG2
VPP//RESET2
9
28
P81/SEG1
P55/Xin
10
27
P80/SEG0
P56/Xout
11
26
P77/COM0
P76/COM1
15
16
17
18
19
20
21 22
23
25
24
P62/VREF
P63/COM6/AD6
P64/COM5/AD5
P65/COM4/AD4
P66/AD3/TC2
P67/AD2/TC3
P72/AD1
P74/COM3
P75/COM2
P73/AD0
14
P61/COM7/INT9/AD7
12
13
P60/INT8/AD8
P57//RESET
EM78P528N
48-PIN
P91/SEG9/INT5/AD10
Figure 3-2 48-pin LQFP 7x7mm EM78P528NL48
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
•3
EM78P528N
8-Bit Microprocessor with OTP ROM
4
Pin Description
Name
P50/INT1/
TC1OUT/
(CLK)
P51/INT2/
TC1IN/
(DATA)
P52/INT3/
TCC
P53/OSCO
P54/OSCI/
RCOUT
Function
Input
Type
Output
Type
Description
P50
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
INT1
ST
-
T1OUT
-
CMOS
(CLK)
ST
-
P51
ST
CMOS
INT2
ST
-
External interrupt pin
T1IN
ST
-
Timer 1 input (Counter/Capture/Window)
(DATA)
ST
CMOS
DATA pin for Writer programming
P52
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
INT3
ST
-
External Interrupt pin
TCC
ST
-
Real Time Clock/Counter clock input
P53
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
OSCO
-
XTAL
Clock output of crystal/resonator oscillator
P54
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
OSCI
XTAL
-
RCOUT
-
CMOS
Clock output of internal RC oscillator
P55
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
Xin
XTAL
-
P56
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
Xout
-
XTAL
Clock output of crystal/resonator oscillator only for
32.768kHz
P57
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
/RESET1
ST
-
P60
ST
CMOS
INT8
ST
-
External interrupt pin
AD8
AN
-
ADC Input 8
P55/Xin
P56/Xout
P57/
/RESET1
P60/INT8/
AD8
4•
External interrupt pin
Timer 1 output (PDO/PWM/Buzzer)
Clock pin for Writer programming
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
Clock input of crystal/resonator oscillator
Clock input of crystal/resonator oscillator only for
32.768kHz
Internal pull-high (set P57 pull-high) reset pin
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Name
P61/COM7/INT9/
AD7
Function
Input
Type
Output
Type
Description
P61
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
COM7
-
AN
ST
-
AN
-
INT9
AD7
P62/VREF
P63/COM6/AD6
P64/COM5/AD5
P65/COM4/AD4
P66/AD3/TC2
P67/AD2/TC3
P72/AD1
P73/AD0
P74/COM3
LCD Common 7 output
External interrupt pin
ADC Input 7
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
P62
ST
CMOS
VREF
AN
-
P63
ST
CMOS
COM6
-
AN
AD6
AN
-
P64
ST
CMOS
COM5
-
AN
AD5
AN
-
P65
ST
CMOS
COM4
-
AN
AD4
AN
-
P66
ST
CMOS
AD3
AN
-
TC2
ST
CMOS
Timer 2 input (Counter/Capture/Window)
Timer 2 output (PDO/PWM/Buzzer)
P67
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
AD2
AN
-
TC3
ST
CMOS
Timer 3 input (Counter/Capture/Window)
Timer 3 output (PDO/PWM/Buzzer)
P72
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
AD1
AN
-
P73
ST
CMOS
AD0
AN
-
P74
ST
CMOS
COM3
-
AN
Voltage reference for ADC
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 6 output
ADC Input 6
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 5 output
ADC Input 5
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 4 output
ADC Input 4
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
ADC Input 3
ADC Input 2
ADC Input 1
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
ADC Input 0
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 3 output
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
•5
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Name
P75/COM2
P76/COM1
P77/COM0
P80/SEG0
P81/SEG1
P82/SEG2
P83/SEG3
P84/SEG4/SI/
SDA
P85/SEG5/SO
P86/SEG6/SCK/
SCL
P87/SEG7//SS
6•
Function
Input
Type
Output
Type
P75
ST
CMOS
COM2
-
AN
P76
ST
CMOS
COM1
-
AN
P77
ST
CMOS
COM0
-
AN
P80
ST
CMOS
SEG0
-
AN
P81
ST
CMOS
SEG1
-
AN
P82
ST
CMOS
SEG2
-
AN
P83
ST
CMOS
SEG3
-
AN
P84
ST
CMOS
SEG4
-
AN
Description
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 2 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 1 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Common 0 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Segment 0 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Segment 1 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Segment 2 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Segment 3 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
LCD Segment 4 output
SI
ST
-
SDA
ST
CMOS
2
I C serial data line. It is open-drain
P85
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
SEG5
-
AN
SO
-
CMOS
SPI serial data output
P86
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
SEG6
-
AN
SCK
ST
CMOS
SPI serial clock input/output
SCL
ST
CMOS
2
I C serial clock line. It is open-drain.
P87
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain, high-sink/drive and pin change wake-up.
SEG7
-
AN
/SS
ST
-
SPI serial data input
LCD Segment 5 output
LCD Segment 6 output
LCD Segment 7 output
SPI Slave select pin
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Name
P90/SEG8/INT4/
AD9
P91/SEG9/INT5/
AD10
Function
Input
Type
Output
Type
P90
ST
CMOS
SEG8
-
AN
INT4
ST
-
External interrupt pin
AD9
AN
-
ADC Input 9
P91
ST
CMOS
SEG9
-
AN
INT5
ST
-
External interrupt pin
AD10
AN
-
ADC Input 10
P92
ST
CMOS
-
AN
External interrupt pin
ADC Input 11
P92/SEG10/INT6/ SEG10
AD11
INT6
ST
-
AD11
AN
-
P93
ST
CMOS
-
AN
ST
-
AN
-
P93/SEG11/INT7/ SEG11
AD12
INT7
AD12
P94/SEG12/AD13
P95/SEG13/AD14
P96/SEG14
P97/SEG15
PA0/SEG16/RX/
SDA
P94
ST
CMOS
SEG12
-
AN
AD13
AN
-
P95
ST
CMOS
SEG13
-
AN
AD14
AN
-
P96
ST
CMOS
SEG14
-
AN
P97
ST
CMOS
SEG15
-
AN
PA0
ST
CMOS
SEG16
-
AN
RX
ST
-
SDA
ST
CMOS
Description
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 8 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 9 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 10 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 11 output
External interrupt pin
ADC Input 12
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 12 output
ADC Input 13
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 13 output
ADC Input 14
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 14 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 15 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 16 output
UART RX input
I2C serial data line. It is open-drain.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
•7
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Name
PA1/SEG17/TX/
SCL
PA2/SEG18/INT0
PA3/SEG19
PA4/SEG20
PA5/SEG21
PA6/SEG22
VDD/(VDD)
VSS/(VSS)
/RESET2/(VPP)
Function
Input
Type
Output
Type
PA1
ST
CMOS
SEG17
-
AN
TX
-
CMOS
UART TX output
SCL
ST
CMOS
2
I C serial clock line. It is open-drain.
PA2
ST
CMOS
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
SEG18
-
AN
INT0
ST
-
PA3
ST
CMOS
SEG19
-
AN
PA4
ST
CMOS
SEG20
-
AN
PA5
ST
CMOS
SEG21
-
AN
PA6
ST
CMOS
SEG22
-
AN
VDD
Power
-
Power
(VDD)
Power
-
VDD pin for Writer programming
VSS
Power
-
Ground
(VSS)
Power
-
Ground pin for Writer programming
/RESET2
ST
-
Reset pin. It is open-drain
(VPP)
Power
-
VPP pin for Writer programming
Description
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 17 output
LCD Segment 18 output
External interrupt pin
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 19 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 20 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 21 output
Bidirectional I/O pin with programmable pull-low, pull-high,
open-drain and high-sink/drive.
LCD Segment 22 output
Legend: ST : Schmitt Trigger input
AN :
XTAL : Oscillation pin for crystal/resonator
8•
Analog pin
CMOS : CMOS output
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Pin control condition repeat function starting capability
I/O Status
Pin Function
Pin Control
I/O Direction Pin Change WK/Int.
General Input
Pull High
Pull Low
O.D.
Input
S/W
S/W
S/W
S/W
General Output
Output
Disable
S/W
S/W
S/W
PWM
Output
Disable
S/W
S/W
S/W
TCC
Input
Disable
S/W
S/W
S/W
TC-IN
Input
Disable
S/W
S/W
S/W
Output
Disable
S/W
S/W
S/W
RSTB (VPP pin)
Input
Disable
−
S/W
S/W
RSTB
Input
Disable
Init: Enable
S/W
S/W
EX_INT
Input
Disable
S/W
S/W
S/W
I2C-SDA
Input/Output
Disable
S/W
S/W
Enable
I2C-SCL
Input/Output
Disable
S/W
S/W
Enable
SPI-SDI
Input
Disable
S/W
S/W
S/W
SPI-SDO
Output
Disable
S/W
S/W
S/W
Input
Disable
S/W
S/W
S/W
SPI-SCK-OUT
Output
Disable
S/W
S/W
S/W
UART-TX
Output
Disable
S/W
S/W
S/W
UART-RX
Input
Disable
S/W
S/W
S/W
LCD Driver
Input
Disable
Disable
Disable
S/W
AD
Input
Disable
Disable
Disable
S/W
OP/VO
Input
Disable
Disable
Disable
S/W
CMP/IN
Input
Disable
Disable
Disable
S/W
CMP/CO
Output
Disable
Disable
Disable
S/W
OSCI
Input
Disable
Disable
Disable
S/W
OSCO
Input
Disable
Disable
Disable
S/W
INMODE
Input
Disable
Disable
Disable
−
−
−
Enable
−
−
Output: *
Enable High
drive/sink
−
−
−
−
TC-OUT
SPI-SCK-IN
WRITER PIN
DUMPROM
Disable → forced to shutoff
Enable → forced to open
S/W → The initial value in the control register is set as “Disable”.
1. For non-I/O function, the Pin Change Wake-up/Interrupt function should be disabled
2. Priority: INMODE PIN > Analog function > I2C, SPI, UART > Output Digital Function > Input
Digital Function > General I/O Function
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
•9
EM78P528N
8-Bit Microprocessor with OTP ROM
Functional Block Diagram
P57
P56
P55
P54
P53
P52
P51
P50
5
Figure 5-1 EM78P528N Functional Block Diagram
10 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6
Functional Description
6.1 Operational Registers
6.1.1 R0 IAR (Indirect Addressing Register)
R0 is not a physically implemented register. Its major function is to perform as an
indirect addressing pointer. Any instruction using R0 as a pointer actually accesses
data pointed by the RAM Select Register (R4).
6.1.2 R1 BSR (Bank Selection Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
SBS0
−
−
GBS1
GBS0
−
−
−
R/W
−
−
R/W
R/W
Bits 7~5: Not used, set to “0” all the time.
Bit 4 (SBS0): Special register bank select bit. It is used to select Bank 0/1 of Special
Registers R5~R4F.
0: Bank 0
1: Bank 1
Bits 3~2: Not used, fixed to 0 all the time.
Bits 1~0 (GBS1~GBS0): General register bank select bit. It is used to select
Banks 0~3 of General Registers R80~RFF.
GBS1
GBS0
RAM Bank
0
0
0
0
1
1
1
0
2
1
1
3
6.1.3 R2 PCL (Program Counter Low)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (PC7~PC0): Low byte of program counter.
„
Depending on the device type, R2 and hardware stack are 13-bit wide. The
structure is depicted in Figure 6-1.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 11
EM78P528N
8-Bit Microprocessor with OTP ROM
12 •
„
Generates 8K×15 bits on-chip OTP ROM addresses to the relative programming
instruction codes. One program page is 4096 words long.
„
R2 is set as all "0"s when under reset condition.
„
"JMP" instruction allows direct loading of the lower 12-bit program counter. Thus,
"JMP" allows the PC to go to any location within a page.
„
"CALL" instruction loads the lower 12 bits of the PC, and the present PC value will
be incremented by 1 and is pushed onto the stack. Thus, the subroutine entry
address can be located anywhere within a page.
„
"LJMP" instruction allows direct loading of the lower 13-bit program counter.
Therefore, "LJMP" allows the PC to jump to any location within 8K (213).
„
"LCALL" instruction loads the lower 13 bits of the PC and PC+1 are pushed onto
the stack. Thus, the subroutine entry address can be located anywhere within 8K
(213).
„
"RET" ("RETL k", "RETI") instruction loads the program counter with the contents
of the top-level stack.
„
"ADD R2, A" allows a relative address to be added to the current PC, and the ninth
and above bits of the PC will increase progressively.
„
"MOV R2, A" allows to load an address from the "A" register to the lower 8 bits of
the PC, and the ninth and above bits of the PC will remain unchanged.
„
Any instruction except “ADD R2,A” that is written to R2 (e.g. "MOV R2, A", "BC
R2, 6",⋅etc.) will cause the ninth bit and the above bits (A8~A12) of the PC to
remain unchanged.
„
All instructions are single instruction cycle (Fsys/2) except “LCALL” and “LJMP”
instructions. The “LCALL” and “LJMP” instructions need two instruction cycles
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Figure 6-1 EM78P528N Program Counter Organization
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 13
EM78P528N
8-Bit Microprocessor with OTP ROM
„
14 •
Data Memory Configuration
Address
Bank 0
Bank 1
0X00
IAR (Indirect Addressing Register)
0X01
BSR (Bank Select Control Register)
0X02
PC (Program Counter)
0X03
SR (Status Register)
0X04
RSR (RAM Select Register)
0X05
Port 5
IOCR8
0X06
Port 6
IOCR9
0X07
Port 7
IOCRA
0X08
Port 8
P5PHCR
0X09
Port 9
P6PHCR
0X0A
Port A
P789APHCR
0x0B
IOC5
P5PLCR
0X0C
IOC6
P6PLCR
0X0D
IOC7
P789APLCR
0X0E
OMCR (Operating Mode Control Register)
P5HDSCR
0X0F
EIESCR1 (External Interrupt Edge Select
Control Register)
P6HDSCR
0X10
WUCR1
P789AHDSCR
0X11
WUCR2
P5ODCR
0X12
WUCR3
P6ODCR
0X13
−
P789AODCR
0X14
SFR1 (Status Flag Register 1)
−
0X15
SFR2 (Status Flag Register 2)
−
0X16
SFR3 (Status Flag Register 3)
−
0X17
SFR4 (Status Flag Register 4)
−
0X18
SFR5 (Status Flag Register 5)
−
0X19
−
−
0X1A
−
−
0X1B
IMR1 (Interrupt Mask Register 1)
−
0X1C
IMR2 (Interrupt Mask Register 2)
−
0X1D
IMR3 (Interrupt Mask Register 3)
−
0X1E
IMR4 (Interrupt Mask Register 4)
−
0X1F
IMR5 (Interrupt Mask Register 5)
−
0X20
−
−
0X21
WDTCR
−
−
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Address
Bank 0
Bank 1
0X22
TCCCR
−
0X23
TCCD
−
0X24
TC1CR1
−
0X25
TC1CR2
−
0X26
TC1DA
−
0X27
TC1DB
−
0X28
TC2CR1
−
0X29
TC2CR2
−
0X2A
TC2DA
−
0x2B
TC2DB
−
0X2C
TC3CR1
−
0X2D
TC3CR2
−
0X2E
TC3DA
−
0X2F
TC3DB
−
0X30
I CCR1
−
0X31
I2CCR2
−
0X32
I2CSA
−
2
2
0X33
I CDB
0X34
2
URS
2
I CDAL
URCR
0X35
I CDAH
URTD
0X36
SPICR
URRDL
0X37
SPIS
URRDH
0X38
SPIR
−
0X39
SPIW
−
0X3A
−
−
0x3B
−
−
0X3C
−
−
0X3D
−
−
0X3E
ADCR1
−
0X3F
ADCR2
−
0X40
ADISR
WCR
0X41
ADER1
−
0X42
ADER2
−
0X43
ADDL
−
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 15
EM78P528N
8-Bit Microprocessor with OTP ROM
Address
Bank 0
Bank 1
0X44
ADDH
−
0X45
ADCVL
TBPTL
0X46
ADCVH
TBPTH
0X47
−
STKMON
0X48
LCDCR1
PCH
0X49
LCDCR2
LVDCR
0X4A
LCDCR3
COBS1
0x4B
LCDADDR
COBS2
0X4C
LCDCCR
COBS3
0X4D
LCDSCR0
−
0X4E
LCDSCR1
−
0X4F
LCDSCR2
−
0X50
0X51
General Purpose Register
:
:
0X7F
0X80
Bank 3
:
Bank 2
:
Bank 1
:
Bank 0
0X81
0XFE
0XFF
Figure 6-2 Data Memory Configuration
16 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.4 R3 SR (Status Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
INT
−
−
T
P
Z
DC
C
F
−
−
R/W
R/W
R/W
R/W
R/W
Bit 7 (INT): Interrupt Enable flag
0: Interrupt masked by DISI or hardware interrupt
1: Interrupt enabled by ENI/DISI instructions
Bits 6~5: Not used, set to “0” all the time.
Bit 4 (T): Time-out bit.
Set to 1 with the "SLEP" and "WDTC" commands, or during power up
and reset to “0” by WDT time-out.
Bit 3 (P): Power down bit.
Set to ”1” during power on or by a "WDTC" command and reset to ”0” by
a "SLEP" command.
Bit 2 (Z): Zero flag.
Set to "1" if the result of an arithmetic or logic operation is zero.
Bit 1 (DC): Auxiliary carry flag
Bit 0 (C): Carry flag
6.1.5 R4 RSR (RAM Select Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RSR7
RSR6
RSR5
RSR4
RSR3
RSR2
RSR1
RSR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (RSR7~RSR0): these bits are used to select registers (Address: 00~FF) in
indirect addressing mode. For more details refer to Figure 6-2 Data
Memory Configuration.
6.1.6 Bank 0 R5 ~ RA Port 5 ~ Port A
R5, R6, R7, R8, R9 and RA are I/O data registers.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 17
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.7 Bank 0 RB~RD IOCR5 ~ IOCR7
These registers are used to control the I/O port direction. They are both readable and
writable.
0: Put the relative I/O pin as output
1: Put the relative I/O pin into high impedance (input)
6.1.8 Bank 0 RE OMCR (Operating Mode Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CPUS
IDLE
−
−
−
−
RCM1
RCM0
R/W
R/W
−
−
−
−
R/W
R/W
Bit 7 (CPUS): CPU Oscillator Source Select.
0: Fs: sub-oscillator
1: Fm: main-oscillator
When CPUS=0, the CPU oscillator selects the sub-oscillator and the
main oscillator is stopped.
Bit 6 (IDLE): Idle Mode Enable Bit. This bit will determine as to which mode to go to or
be activated after SLEP instruction.
0: “IDLE=0”+SLEP instruction → sleep mode
1: “IDLE=1”+SLEP instruction → idle mode
Figure 6-3 CPU Operation Mode
Note
(*) Switching Operation Mode from Idle → Normal, Idle → Green
If the clock source of the timer is Fs, the timer/counter will continue to count in Idle
mode. When the matching condition of the timer/counter occurs during Idle mode, the
interrupt flag of the timer/counter will be active. The MCU will jump to the interrupt
vector when the corresponding interrupt is enabled.
18 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
„
Oscillation Characteristics
HLFS=1
Fmain
RC
XT
Pin-Reset / WDT
Power-on
Fsub
LVR
N/G/I
S
RC
16ms + WSTO + 8*1/Fmain
WSTO + 8*1/Fmain
WSTO + 8*1/Fmain
XT
16ms + WSTO + 510*1/Fsub
WSTO + 8*1/Fmain
WSTO + 510*1/Fsub
RC
16ms + WSTO + 510*1/Fmain
WSTO + 510*1/Fmain
WSTO + 510*1/Fmain
XT
16ms + WSTO + 510*1/Fsub
WSTO + 510*1/Fmain
WSTO + 510*1/Fsub
HLFS=0
Fmain
RC
XT
Fmain
RC
XT
Pin-Reset / WDT
Power-on
Fsub
LVR
N/G/I
S
RC
16ms + WSTO + 8*1/Fsub
WSTO + 8*1/Fsub
WSTO + 8*1/Fsub
XT
16ms + WSTO + 510*1/Fsub
WSTO + 8*1/Fsub
WSTO + 510*1/Fsub
RC
16ms + WSTO + 8*1/Fsub
WSTO + 8*1/Fsub
WSTO + 8*1/Fsub
XT
16ms + WSTO + 510*1/Fsub
WSTO + 8*1/Fsub
WSTO + 510*1/Fsub
IÆN
SÆN
GÆN
Fsub
RC
WSTO + 8*1/Fmain
WSTO + 8*1/Fmain
WSTO + 8*1/Fmain
XT
WSTO + 8*1/Fmain
WSTO + 8*1/Fmain
WSTO + 510*1/Fsub
RC
WSTO + 510*1/Fmain
WSTO + 510*1/Fmain
WSTO + 510*1/Fmain
XT
WSTO + 510*1/Fmain
WSTO + 510*1/Fmain
WSTO + 510*1/Fsub
Fmain
Fsub
IÆG
SÆG
RC
RC
WSTO + 8*1/Fsub
WSTO + 8*1/Fsub
XT
XT
WSTO + 8*1/Fsub
WSTO + 510*1/Fsub
N: Normal mode
WSTO: Waiting Time from Start-to-Oscillation
G: Green mode
I: Idle mode
S: Sleep mode
Bits 5~2: Not used, set to “0” all the time
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 19
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 1~0 (RCM1~RCM0): Internal RC mode select bits
*RCM1
*RCM0
Frequency (MHz)
0
0
1
0
1
8
1
0
16
1
1
4
Note *: The initial value of RCM1~0 is the same as setting in Code Option Word 0. According to
the control bit “COBS” in Code Option Word 0, the IRC frequencies can be switched by
the control register or only by code option after the IC power is on.
6.1.9 Bank 0 RF EIESCR (External Interrupt Edge Select Control
Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EIES98
EIES76
EIES54
EIES32
EIES1
EIES0
−
−
R/W
R/W
R/W
R/W
R/W
R/W
−
−
Bit 7 (EIES98): External Interrupt Edge Select Bit (while controlling INT9 and INT8)
0: Falling edge interrupt
1: Rising edge interrupt
Bit 6 (EIES76): External Interrupt Edge Select Bit (while controlling INT7 and INT6)
0: Falling edge interrupt
1: Rising edge interrupt
Bit 5 (EIES54): External Interrupt Edge Select Bit (while controlling INT5 and INT4)
0: Falling edge interrupt
1: rising edge interrupt
Bit 4 (EIES32): External Interrupt Edge Select Bit (while controlling INT3 and INT2)
0: Falling edge interrupt
1: Rising edge interrupt
Bits 3~2 (EIES1~0): External Interrupt Edge Select Bit
0: Falling edge interrupt
1: Rising edge interrupt
Bits 1~0: Not used, set to “0” all the time
20 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.10 Bank 0 R10 WUCR1 (Wake-up Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
LVDWK
ADWK
INTWK1
INTWK0
−
−
−
−
R/W
R/W
R/W
R/W
−
−
Bits 7~6: Not used, set to “0” all the time
Bit 5 (LVDWK): Low Voltage Detect Wake-up Enable Bit
0: Disable Low Voltage Detect wake-up.
1: Enable Low Voltage Detect wake-up.
Bit 4 (ADWK): A/D Converter Wake-up Function Enable Bit
0: Disable AD converter wake-up
1: Enable AD converter wake-up
When the AD Complete status is used to enter an interrupt vector or to wake-up the IC
from sleep/idle mode with AD conversion running, the ADWK bit must be set to
“Enable“.
Bits 3~2 (INTWK1~0): External Interrupt (INT pin) Wake-up Function Enable Bit
0: Disable external interrupt wake-up
1: Enable external interrupt wake-up
When the External Interrupt status changed is used to enter an interrupt vector or to
wake-up the IC from sleep/idle mode, the INTWK bits must be set to “Enable“.
Bits 1~0: Not used, set to “0” all the time
6.1.11 Bank 0 R11 WUCR2 (Wake-up Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
−
SPIWK
I2CWK
−
−
−
−
−
−
R/W
R/W
−
−
Bits 7~4: Not used, set to “0” all the time.
Bit 3 (SPIWK): SPI wake-up enable bit. Functions when SPI works in Slave mode.
0: Disable SPI wake-up
1: Enable SPI wake-up
Bit 2 (I2CWK): I2C wake-up enable bit. It is available when I2C works in Slave mode.
0: Disable
1: Enable
Bits 1~0: Not used, set to “0” all the time
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 21
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.12 Bank 0 R12 WUCR3 (Wake-up Control Register 3)
Bit 7
Bit 6
Bit 5
Bit 4
ICWKP8
ICWKP7
ICWKP6
ICWKP5
R/W
R/W
R/W
R/W
Bit 3
Bit 2
Bit 1
Bit 0
INTWK98 INTWK76 INTWK54 INTWK32
R/W
R/W
R/W
R/W
Bits 7~4 (ICWKP8~5): (Port 8~5) Pin-change Wake-up Function Enable Bit
0: Disable pin change wake-up function
1: Enable pin change wake-up function
Bits 3~0 (INTWK98/INTWK76/INTWK54/INTWK32): External Interrupt (INT pin)
Wake-up Function Enable Bit (INTWK98 while controlling INT9 and INT8.
INTWK76, INTWK54 and INTWK32 are similar)
0: Disable external interrupt wake-up
1: Enable external interrupt wake-up
When the External Interrupt status change is used to enter an interrupt
vector or to wake-up the IC from sleep/idle mode, the INTWK bits must
be set to “Enable“.
6.1.13 Bank 0 R14 SFR1 (Status Flag Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
LVDSF
ADSF
EXSF1
EXSF0
WTSF
TCSF
−
−
F
F
F
F
F
F
Each corresponding status flag is set to “1” when interrupt condition is triggered.
Bits 7~6: Not used, set to “0” all the time.
Bit 5 (LVDSF): Low Voltage Detector status flag.
LVDEN
LVDS2~0
LVD Voltage Interrupt Level
LVDSF
1
011
2.2V
1*
1
010
3.3V
1*
1
001
4.0V
1*
1
000
4.5V
1*
0
XXX
NA
0
* If VDD crossovers at the LVD voltage interrupt level as VDD varies, then LVDSF = 1.
Bit 4 (ADSF): Status flag for Analog-to-Digital conversion. Set when AD conversion is
completed, reset by software.
Bits 3~2 (EXSF1~0): External interrupt status flag.
Bit 1 (WTSF): Watch timer status flag. Set when the Watch timer overflows, reset by
software.
Bit 0 (TCSF): TCC overflow status flag. Set when TCC overflows, reset by software.
22 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
NOTE
If a function is enabled, the corresponding status flag would be active whether the
interrupt mask is enabled or not.
6.1.14 Bank 0 R15 SFR2 (Status Flag Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
UERRSF
URSF
UTSF
TC3SF
TC2SF
TC1SF
−
−
F
F
F
F
F
F
Each corresponding status flag is set to “1” when interrupt condition is triggered.
Bits 7~6: Not used, set to “0” all the time
Bit 5 (UERRSF): UART receiving error Status flag. This flag is cleared by software or
when UART is disabled.
Bit 4 (URSF): UART receive mode data buffer full Status flag. This flag is cleared by
software.
Bit 3 (UTSF): UART transmit mode data buffer empty flag. This flag is cleared by
software.
Bit 2 (TC3SF): 8-bit Timer/Counter 3 Status flag. This flag is cleared by software.
Bit 1 (TC2SF): 8-bit Timer/Counter 2 Status flag. This flag is cleared by software.
Bit 0 (TC1SF): 8-/16-bit Timer/Counter 1 Status flag. This flag is cleared by software.
6.1.15 Bank 0 R17 SFR4 (Status Flag Register 4)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
2
Bit 1
2
Bit 0
2
P8ICSF
P7ICSF
P6ICSF
P5ICSF
SPISF
I CSTPSF
I CRSF
I CTSF
F
F
F
F
F
F
F
F
Bit 7 (P8ICSF): Port 8 Status flag. This flag is cleared by software.
Bit 6 (P7ICSF): Port 7 Status flag. This flag is cleared by software.
Bit 5 (P6ICSF): Port 6 Status flag. This flag is cleared by software.
Bit 4 (P5ICSF): Port 5 Status flag. This Flag is cleared by software.
Bit 3 (SPISF): SPI mode Status flag. This flag is cleared by software.
Bit 2 (I2CSTPSF): I2C Stop Status flag. Set when I2C occurs at a stop signal.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 23
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 1 (I2CRSF): I2C Receive Status flag. Set when I2C receives 1 byte data and
responds with an ACK signal. Reset by firmware or when I22C is
disabled.
Bit 0 (I2CTSF): I2C Transmit Status flag. Set when I2C transmits 1 byte data and
receives handshake signal (ACK or NACK). Reset by firmware or
when I2C is disabled
NOTE
If a function is enabled, the corresponding Status flag would be active whether the
interrupt mask is enabled or not.
6.1.16 Bank 0 R18 SFR5 (Status Flag Register 5)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EXSF9
EXSF8
EXSF7
EXSF6
EXSF5
EXSF4
EXSF3
EXSF2
F
F
F
F
F
F
F
F
Each corresponding Status flag is set to “1” when interrupt condition is triggered.
Bits 7~0 (EXSF9~2): External Interrupt Status flag.
NOTE
If a function is enabled, the corresponding status flag would be active regardless
whether the interrupt mask is enabled or not.
6.1.17 Bank 0 R1B IMR1 (Interrupt Mask Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
LVDIE
ADIE
EXIE1
EXIE0
WTIE
TCIE
−
−
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~6: Not used, set to “0” all the time.
Bit 5 (LVDIE): LVDSF interrupt enable bit.
0: Disable LVDSF interrupt
1: Enable LVDSF interrupt
Bit 4 (ADIE): ADSF interrupt enable bit.
0: Disable ADSF interrupt
1: Enable ADSF interrupt
24 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 3 (EXIE1): EXSF1 interrupt enable bit.
0: Disable EXSF1 interrupt
1: Enable EXSF1 interrupt
Bit 2 (EXIE0): EXSF0 interrupt enable bit.
0: Disable EXSF0 interrupt
1: Enable EXSF0 interrupt
Bit 1 (WTIE): WTSF interrupt enable bit.
0: Disable WTSF interrupt
1: Enable WTSF interrupt
Bit 0 (TCIE): TCSF interrupt enable bit.
0: Disable TCSF interrupt
1: Enable TCSF interrupt
NOTE
If the interrupt mask and instruction “ENI” are enabled, the program counter would
jump into the corresponding interrupt vector when the corresponding status flag is
set.
6.1.18 Bank 0 R1C IMR2 (Interrupt Mask Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
UERRIE
URIE
UTIE
TC3IE
TC2IE
TC1IE
−
−
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~6: Not used, set to “0” all the time.
Bit 5 (UERRIE): UART receive error interrupt enable bit.
0: Disable UERRSF interrupt
1: Enable UERRSF interrupt
Bit 4 (URIE): UART receive mode Interrupt enable bit.
0: Disable URSF interrupt
1: Enable URSF interrupt
Bit 3 (UTIE): UART transmit mode interrupt enable bit.
0: Disable UTSF interrupt
1: Enable UTSF interrupt
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 25
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 2 (TC3IE): Interrupt enable bit.
0: Disable TC3SF interrupt
1: Enable TC3SF interrupt
Bit 1 (TC2IE): Interrupt enable bit.
0: Disable TC2SF interrupt
1: Enable TC2SF interrupt
Bit 0 (TC1IE): Interrupt enable bit.
0: Disable TC1SF interrupt
1: Enable TC1SF interrupt
NOTE
If the interrupt mask and instruction “ENI” are enabled, the program counter would
jump to the corresponding interrupt vector when the corresponding status flag is set.
6.1.19 Bank 0 R1E IMR4 (Interrupt Mask Register 4)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P8ICIE
P7ICIE
P6ICIE
P5ICIE
SPIIE
I2CSTPIE
I2CRIE
I2CTIE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~4 (P8ICIE ~P5ICIE): Ports 8~5 pin-change Interrupt Enable bit.
0: Disable P8ICSF ~ P5ICSF interrupt
1: Enable P8ICSF ~ P5ICSF interrupt
Bit 3 (SPIIE): Interrupt enable bit.
0: Disable SPISF interrupt
1: Enable SPISF interrupt
2
Bit 2 (I CSTPIE): I2C stop interrupt enable bit.
0: Disable interrupt
1: Enable interrupt
2
Bit 1 (I CRIE): I2C Interface Rx interrupt enable bit
0: Disable interrupt
1: Enable interrupt
2
Bit 0 (I CTIE): I2C Interface Tx interrupt enable bit
0: Disable interrupt
1: Enable interrupt
26 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
NOTE
If the interrupt mask and instruction “ENI” are enabled, the program counter would
jump to the corresponding interrupt vector when the corresponding status flag is set.
6.1.20 Bank 0 R1F IMR5 (Interrupt Mask Register 5)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EXIE9
EXIE8
EXIE7
EXIE6
EXIE5
EXIE4
EXIE3
EXIE2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (EXIE9~2): EXSF9~2 interrupt enable bit.
0: Disable EXSF9~2 interrupt
1: Enable EXSF9~2 interrupt
INT Pin
Enable Condition
INTX
EXIEX
Edge
Digital Noise Reject
Rising or Falling
8/Fc or 32/Fc
NOTE
1. The compound pin used as INT pin determines whether the interrupt
mask is enabled or not.
2. If the interrupt mask and instruction “ENI” are enabled, the program counter would
jump to the corresponding interrupt vector when the corresponding Status flag is
set.
6.1.21 Bank 0 R21 WDTCR (Watchdog Timer Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
WDTE
−
−
−
PSWE
WPSR2
WPSR1
WPSR0
R/W
−
−
−
R/W
R/W
R/W
R/W
Bit 7 (WDTE): Watchdog Timer Enable Bit. WDTE is both readable and writable.
0: Disable WDT
1: Enable WDT
Bits 6~4: Not used, set to “0” all the time.
Bit 3 (PSWE): Prescaler enable bit for WDT
0: Prescaler disable bit. WDT rate is 1:1
1: Prescaler enable bit. WDT rate is set at Bits 2~0.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 27
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 2~0 (WPSR2~ WPSR 0): WDT Prescaler Bits
WPSR2
WPSR1
WPSR0
WDT Rate
0
0
0
1:2
0
0
1
1:4
0
1
0
1:8
0
1
1
1:16
1
0
0
1:32
1
0
1
1:64
1
1
0
1:128
1
1
1
1:256
6.1.22 Bank 0 R22 TCCCR (TCC Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
TCCS
TS
TE
PSTE
TPSR2
TPSR1
TPSR0
−
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7: Not used, set to “0” all the time.
Bit 6 (TCCS): TCC Clock Source Select Bit
0: Fs (sub clock) (default)
1: Fm (main clock)
Bit 5 (TS): TCC Signal Source
0: Internal oscillator cycle clock. If P77 is used as I/O pin, TS must be 0.
1: Transition on the TCC pin, TCC period must be larger than internal
instruction clock period.
Bit 4 (TE): TCC Signal Edge
0: Increment if the transition from low to high takes place on the TCC pin
1: Increment if the transition from high to low takes place on the TCC pin
Bit 3 (PSTE): Prescaler enable bit for TCC
0: Prescaler disable bit. The TCC rate is 1:1.
1: Prescaler enable bit. The TCC rate is set at Bit 2 ~ Bit 0.
28 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 2~0 (TPSR2~TPSR0): TCC Prescaler Bits
TPSR2
TPSR1
TPSR0
TCC Rate
0
0
0
1:2
0
0
1
1:4
0
1
0
1:8
0
1
1
1:16
1
0
0
1:32
1
0
1
1:64
1
1
0
1:128
1
1
1
1:256
6.1.23 Bank 0 R23 TCCD (TCC Data Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TCC7
TCC6
TCC5
TCC4
TCC3
TCC2
TCC1
TCC0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TCC7~TCC0): TCC data
It is incremented by an external signal edge through the TCC pin or by the instruction
cycle clock. The external signal of the TCC trigger pulse width must be greater than
one instruction. The signals to increment the counter are determined by Bit 4 and Bit 5
of the TCCCR register. Writable and readable as any other registers. Whenever
overflow is happened, the TCC circuit will continue to count signal edge from 0
repeatedly.
6.1.24 Bank 0 R24 TC1CR1 (Timer/Counter 1 Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC1S
TC1RC
TC1SS1
TC1MOD
TC1FF
TC1OMS
TC1IS1
TC1IS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (TC1S): Timer/Counter 1 start control (main switch for all modes)
0: Stop and clear the counter (default)
1: Start Timer/Counter 1
Bit 6 (TC1RC): Timer 1 Read Control Bit
0: When this bit is set to “0”, data from TC1DB cannot be read (default).
1: When this bit is set to “1”, data is read from TC1DB. The read data is
the enumerated counting number.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 29
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 5 (TC1SS1): Timer/Counter 1 clock source select Bit 1
0: Select internal clock as counting source (Fc) Fs/Fm (default)
1: Select external TC1 pin as counting source (Fc). It is used only for
timer/counter mode.
Bit 4 (TC1MOD): Timer Operation Mode Select Bit
0: Two 8-bit timers
1: Timers 1 and 2 are cascaded as one 16-bit timer. The corresponding
control register of the 16-bit timer is from Timer 1. TC1DA and TC1DB
are high byte. TC2DA and TC2DB are low byte.
Bit 3 (TC1FF): Inversion for Timer/Counter 1 as PWM or PDO mode
0: Duty is Logic 1 (default)
1: Duty is Logic 0
Bit 2 (TC1OMS): Timer Output Mode Select Bit
0: Repeating mode (default)
1: One-shot mode
NOTE
One-shot mode means the timer only counts a cycle.
Bits 1~0 (TC1IS1~ TC1IS0): Timer 1 Interrupt Type Select Bits. These two bits are
used when the Timer operates in PWM mode.
TC1IS1
TC1IS0
Timer 1 Interrupt Type Select
0
0
TC1DA (period) matching
0
1
TC1DB (duty) matching
1
×
TC1DA and TC1DB matching
6.1.25 Bank 0 R25 TC1CR2 (Timer/Counter 1 Control Register 2)
30 •
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC1M2
TC1M1
TC1M0
TC1SS0
TC1CK3
TC1CK2
TC1CK1
TC1CK0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 7~5 (TC1M2~TC1M0): Timer/Counter 1 operation mode select.
TC1M2
TC1M1
TC1M0
Operating Mode Select
0
0
0
Timer/Counter Rising Edge
0
0
1
Timer/Counter Falling Edge
0
1
0
Capture Mode Rising Edge
0
1
1
Capture Mode Falling Edge
1
0
0
Window mode
1
0
1
Programmable Divider output
1
1
0
Pulse Width Modulation output
1
1
1
Buzzer (output timer/counter clock source. The
duty cycle of the clock source must be 50/50)
Bit 4 (TC1SS0): Timer/Counter 1 clock source select bit
0: Fs is used as counting source (Fc) (default)
1: Fm is used as counting source (Fc)
Bits 3~0 (TC1CK3~TC1CK0): Timer/Counter 1 clock source prescaler select
TC3CK3
TC3CK2
TC3CK1
TC3CK0
Clock
Source
Resolution
8 MHz
Max. Time
Max. Time
8 MHz
Resolution
16kHz
Normal
FC=8M
FC=8M
FC=16K
FC=16K
16kHz
0
0
0
0
FC
125ns
32 μs
62.5 μs
16ms
0
0
0
1
FC/2
250ns
64 μs
125 μs
32ms
0
0
1
0
FC/22
500ns
128 μs
250 μs
64ms
3
0
0
1
1
FC/2
1 μs
256 μs
500 μs
128ms
0
1
0
0
FC/24
2 μs
512 μs
1ms
256ms
1
5
4 μs
1024 μs
2ms
512ms
6
8 μs
2048 μs
4ms
1024ms
7
16 μs
4096 μs
8ms
2048ms
8
0
1
0
FC/2
0
1
1
0
FC/2
0
1
1
1
FC/2
1
0
0
0
FC/2
32 μs
8192 μs
16ms
4096ms
1
0
0
1
FC/29
64 μs
16384 μs
32ms
8192ms
0
10
128 μs
32768 μs
64ms
16384ms
11
256 μs
65536 μs
128ms
32768ms
12
512 μs
131072 μs
256ms
65536ms
13
1.024ms
262144 μs
512ms
131072ms
14
2.048ms
524.288ms
1.024s
262144ms
15
4.096ms
1.048s
2.048s
524288ms
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
1
1
0
1
0
1
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 31
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.26 Bank 0 R26 TC1DA (Timer/Counter 1 Data Buffer A)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC1DA7
TC1DA6
TC1DA5
TC1DA4
TC1DA3
TC1DA2
TC1DA1
TC1DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC1DA7~0): Data Buffer A of 8-bit Timer/Counter 1
6.1.27 Bank 0 R27 TC1DB (Timer/Counter 1 Data Buffer B)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC1DB7
TC1DB6
TC1DB5
TC1DB4
TC1DB3
TC1DB2
TC1DB1
TC1DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC1DB7~0): Data Buffer B of 8-bit Timer/Counter 1
NOTE
When Timer / Counter x is used in PWM mode, the duty value stored at register
TCxDB must be smaller than or equal to the period value stored at register
TCxDA.,i.e. duty≦period. Then the PWM waveform is generated. If the duty is
larger than the period, the PWM output waveform is kept at a high voltage level.
2. The period value set by users is extra plus 1 in inner circuit.
For example:
When the period value is set as 0x4F, the PWM waveform will actually generate 0x50
period length.
When the period value is set as 0xFF, the PWM waveform will actually generate
0x100 period length.
1.
6.1.28 Bank 0 R28 TC2CR1 (Timer/Counter 2 Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC2S
TC2RC
TC2SS1
−
TC2FF
TC2OMS
TC2IS1
TC2IS0
R/W
R/W
R/W
−
R/W
R/W
R/W
R/W
Bit 7 (TC2S): Timer/Counter 2 start control (main switch for all modes)
0: Stop and clear the counter (default)
1: Start Timer/Counter 2
Bit 6 (TC2RC): Timer 2 Read Control Bit
0: When this bit is set to “0”, data from TC2DB cannot be read (default).
1: When this bit is set to “1”, data is read from TC2DB. The read data is
the enumerated counting number.
32 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 5 (TC2SS1): Timer/Counter 2 clock source select Bit 1
0: Internal clock as counting source (Fc) - Fs/Fm (default)
1: External TC2 pin as counting source (Fc). It is used only for
timer/counter mode.
Bit 4: Not used, set to “0” all the time.
Bit 3 (TC2FF): Inversion for Timer/Counter 2 as PWM or PDO mode
0: Duty is Logic 1 (default).
1: Duty is Logic 0.
Bit 2 (TC2OMS): Timer Output Mode Select Bit
0: Repeating mode (default)
1: One-shot mode
NOTE
One-shot mode means the timer only counts a cycle.
Bits 1~0 (TC2IS1~ TC2IS0): Timer 2 Interrupt Type Select Bits. These two bits are
used when the Timer operates in PWM mode.
TC2IS1
TC2IS0
Timer 2 Interrupt Type Select
0
0
TC2DA (period) matching
0
1
TC2DB (duty) matching
1
×
TC2DA and TC2DB matching
6.1.29 Bank 0 R29 TC2CR2 (Timer/Counter 2 Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC2M2
R/W
TC2M1
R/W
TC2M0
R/W
TC2SS0
R/W
TC2CK3
R/W
TC2CK2
R/W
TC2CK1
R/W
TC2CK0
R/W
Bits 7~5 (TC2M2~TC2M0): Timer/Counter 2 operation mode select
TC2M2
TC2M1
TC2M0
0
0
0
Timer/Counter Rising Edge
0
0
1
Timer/Counter Falling Edge
0
1
0
Capture Mode Rising Edge
0
1
1
Capture Mode Falling Edge
1
0
0
Window mode
1
0
1
Programmable Divider output
1
1
0
Pulse Width Modulation output
1
1
1
Buzzer(output timer/counter clock source. The duty cycle
of the clock source must be 50/50)
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
Operating Mode Select
• 33
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 4 (TC2SS0): Timer/Counter 2 Clock Source Select Bit 0
0: Fs is used as counting source (Fc) (default)
1: Fm is used as counting source (Fc)
Bits 3~0 (TC2CK3~TC2CK0): Timer/Counter 2 Clock Source Prescaler Select.
TC2CK3
TC2CK2
TC2CK1
TC2CK0
Clock
Source
Resolution
8 MHz
Max. Time
Max. Time
8 MHz
Resolution
16kHz
Normal
FC=8M
FC=8M
FC=16K
FC=16K
125ns
32 μs
62.5 μs
16ms
16kHz
0
0
0
0
FC
0
0
0
1
FC/2
250ns
64 μs
125 μs
32ms
0
2
500ns
128 μs
250 μs
64ms
3
1 μs
256 μs
500 μs
128ms
4
2 μs
512 μs
1ms
256ms
5
4 μs
1024 μs
2ms
512ms
6
8 μs
2048 μs
4ms
1024ms
7
16 μs
4096 μs
8ms
2048ms
8
32 μs
8192 μs
16ms
4096ms
9
64 μs
16384 μs
32ms
8192ms
10
128 μs
32768 μs
64ms
16384ms
11
256 μs
65536 μs
128ms
32768ms
12
512 μs
131072 μs
256ms
65536ms
13
1.024ms
262144 μs
512ms
131072ms
14
2.048ms
524.288ms
1.024s
262144ms
15
4.096ms
1.048s
2.048s
524288ms
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
0
1
1
1
0
1
0
0
1
1
1
1
0
1
0
1
0
0
0
0
0
1
1
0
0
1
1
1
0
1
0
0
1
1
1
1
0
1
1
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
FC/2
6.1.30 Bank 0 R2A TC2DA (Timer/Counter 2 Data Buffer A)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC2DA7
TC2DA6
TC2DA5
TC2DA4
TC2DA3
TC2DA2
TC2DA1
TC2DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC2DA7~ TC2DA0): Data Buffer A of 8-bit Timer/Counter 2
6.1.31 Bank 0 R2B TC2DB (Timer/Counter 2 Data Buffer B)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC2DB7
TC2DB6
TC2DB5
TC2DB4
TC2DB3
TC2DB2
TC2DB1
TC2DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC2DB7~ TC2DB0): Data Buffer B of 8-bit Timer/Counter 2
34 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.32 Bank 0 R2C TC3CR1 (Timer/Counter 3 Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC3S
TC3RC
TC3SS1
−
TC3FF
TC3OMS
TC3IS1
TC3IS0
R/W
R/W
R/W
−
R/W
R/W
R/W
R/W
Bit 7 (TC3S): Timer/Counter 3 start control (main switch for all modes)
0: Stop and clear the counter (default)
1: Start Timer/Counter 3
Bit 6 (TC3RC): Timer 3 Read Control Bit
0: When this bit is set to “0”, data from TC3DB cannot be read (default).
1: When this bit is set to “1”, data is read from TC3DB. The read data is
the enumerated counting number.
Bit 5 (TC3SS1): Timer/Counter 3 Clock Source Select Bit 1
0: Internal clock as counting source (Fc) - Fs/Fm (default)
1: External TC3 pin as counting source (Fc). It is used only for
timer/counter mode.
Bit 4: Not used, set to “0” all the time.
Bit 3 (TC3FF): Inversion for Timer/Counter 3 as PWM or PDO mode.
0: Duty is Logic 1 (default).
1: Duty is Logic 0.
Bit 2 (TC3OMS): Timer Output Mode Select Bit
0: Repeating mode (default)
1: One-shot mode
NOTE
One-shot mode means the timer only counts a cycle.
Bits 1~0 (TC3IS1~ TC3IS0): Timer 3 Interrupt Type Select Bits. These two bits are
used when the Timer operates in PWM mode.
TC3IS1
TC3IS0
Timer 3 Interrupt Type Select
0
0
TC3DA (period) matching
0
1
TC3DB (duty) matching
1
×
TC3DA and TC3DB matching
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 35
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.33 Bank 0 R2D TC3CR2 (Timer/Counter 3 Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC3M2
TC3M1
TC3M0
TC3SS0
TC3CK3
TC3CK2
TC3CK1
TC3CK0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~5 (TC3M2~TC3M0): Timer/Counter 3 operation mode select.
TC3M2
TC3M1
TC3M0
Operating Mode Select
0
0
0
Timer/Counter Rising Edge
0
0
1
Timer/Counter Falling Edge
0
1
0
Capture Mode Rising Edge
0
1
1
Capture Mode Falling Edge
1
0
0
Window mode
1
0
1
Programmable Divider output
1
1
0
Pulse Width Modulation output
1
1
1
Buzzer (output timer/counter clock source. The
duty cycle of the clock source must be 50/50)
Bit 4 (TC3SS0): Timer/Counter 3 Clock Source Select Bit 0
0: Fs is used as counting source (Fc) (default)
1: Fm is used as counting source (Fc)
Bits 3~0 (TC3CK3~TC3CK0): Timer/Counter 3 clock source prescaler select.
TC3CK3
TC3CK1
TC3CK0
Clock
Source
Resolution
8 MHz
Max. Time
8 MHz
Resolution
16kHz
Max. Time
16kHz
Normal
FC=8M
FC=8M
FC=16K
FC=16K
FC
125ns
32 μs
62.5 μs
16ms
0
0
0
0
0
0
0
1
FC/2
250ns
64 μs
125 μs
32ms
0
0
1
0
FC/22
500ns
128 μs
250 μs
64ms
1
3
1 μs
256 μs
500 μs
128ms
4
0
0
1
FC/2
0
1
0
0
FC/2
2 μs
512 μs
1ms
256ms
0
1
0
1
FC/25
4 μs
1024 μs
2ms
512ms
6
0
1
1
0
FC/2
8 μs
2048 μs
4ms
1024ms
0
1
1
1
FC/27
16 μs
4096 μs
8ms
2048ms
0
8
32 μs
8192 μs
16ms
4096ms
1
36 •
TC3CK2
0
0
FC/2
9
1
0
0
1
FC/2
64 μs
16384 μs
32ms
8192ms
1
0
1
0
FC/210
128 μs
32768 μs
64ms
16384ms
1
0
1
1
FC/211
256 μs
65536 μs
128ms
32768ms
12
1
1
0
0
FC/2
512 μs
131072 μs
256ms
65536ms
1
1
0
1
FC/213
1.024ms
262144 μs
512ms
131072ms
1
1
1
0
FC/214
2.048ms
524.288ms
1.024s
262144ms
1
1
1
1
FC/215
4.096ms
1.048s
2.048s
524288ms
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.34 Bank 0 R2E TC3DA (Timer/Counter 3 Data Buffer A)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC3DA7
TC3DA6
TC3DA5
TC3DA4
TC3DA3
TC3DA2
TC3DA1
TC3DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC3DA7~ TC3DA0): Data Buffer A of 8-bit Timer/Counter 3
6.1.35 Bank 0 R2F TC3DB (Timer/Counter 3 Data Buffer B)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC3DB7
TC3DB6
TC3DB5
TC3DB4
TC3DB3
TC3DB2
TC3DB1
TC3DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TC3DB7~ TC3DB0): Data Buffer B of 8-bit Timer/Counter 3
6.1.36 Bank 0 R30 I2CCR1 (I2C Status and Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Strobe/Pend
IMS
ISS
STOP
SAR_EMPTY
ACK
FULL
EMPTY
R/W
R/W
R/W
R/W
R
R
R
R
Bit 7 (Strobe/Pend): In Master mode, it is used as strobe signal to control the I2C
circuit from sending SCL clock. Automatically resets after receiving or
transmitting a handshake signal (ACK or NACK).
In Slave mode, it is used as pending signal. User should clear it after
writing data into the Tx buffer or retrieving data from the Rx buffer to
inform the Slave I2C circuit to release an SCL signal.
Bit 6 (IMS): I2C Master/Slave mode select bit.
0: Slave
1: Master
2
Bit 5 (ISS): I C Fast/Standard mode select bit. (If Fm is 4 MHz and I2CTS1~0<0,0>)
0: Standard mode (100kbit/s)
1: Fast mode (400kbit/s)
Bit 4 (STOP): In Master mode, if STOP=1 and R/nW=1 then the MCU must return a
nACK signal to the Slave device before sending a STOP signal. If
STOP=1 and R/nW=0 then the MCU sends a STOP signal after
receiving an ACK signal. Reset when the MCU sends a STOP signal to
the Slave device.
In Slave mode, if STOP=1 and R/nW=0 then the MCU must return a
nACK signal to the Master device.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 37
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 3 (SAR_EMPTY): Set when the MCU transmits a “1” byte data from the I2C Slave
Address Register and receives an ACK (or nACK) signal. Reset when
the MCU writes a “1” byte data to the I2C Slave Address Register.
Bit 2 (ACK): The ACK condition bit is set to “1” by hardware when the device responds
with an “acknowledge” (ACK) signal. Reset when the device responds
with a “not-acknowledge” (nACK) signal.
Bit 1 (FULL): Set by hardware when the I2C Receive Buffer Register is full. Reset by
hardware when the MCU reads data from the I2C Receive Buffer
Register.
Bit 0 (EMPTY): Set by hardware when I2C Transmit Buffer Register is empty and
receives ACK (or nACK) signal. Reset by hardware when the MCU
writes new data to I2C Transmit Buffer Register.
6.1.37 Bank 0 R31 I2CCR2 (I2C Status and Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
I2CBF
GCEN
−
BBF
2
I CTS1
I2CTS0
−
I2CEN
R
R/W
−
R
R/W
R/W
−
R/W
Bit 7 (I2CBF): I2C Busy Flag Bit
0: Clear to “0” in Slave mode, if the received STOP signal or the I2C
Slave address does not match.
1: Set when I2C communicates with Master in Slave mode.
Bit 6 (GCEN): I2C General Call Function Enable Bit
0: Disable General Call Function
1: Enable General Call Function
Bit 5: Not used, set to “0” all the time.
Bit 4 (BBF): Busy Flag Bit. I2C detection is busy in the Master mode. Read only.
Bits 3~2 (I2CTS1~I2CTS0): I2C Transmit Clock Select Bits. When using different
operating frequency (Fm), these bits must be set correctly in order for the
SCL clock to be consistent in Standard/Fast mode.
I2CCR1 Bit 5 = 1, Fast mode
38 •
I2CTS1
I2CTS0
SCL CLK
Operating Fm (MHz)
0
0
Fm/10
4
0
1
Fm/20
8
1
0
Fm/30
12
1
1
Fm/40
16
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
I2CCR1 Bit 5 = 0, Standard mode
I2CTS1
I2CTS0
SCL CLK
Operating Fm (MHz)
0
0
Fm/40
4
0
1
Fm/80
8
1
0
Fm/120
12
1
1
Fm/160
16
Bit 1: Not used, set to "0" all the time.
Bit 0 (I2CEN): I2C Enable Bit
0: Disable I2C mode
1: Enable I2C mode
6.1.38 Bank 0 R32 I2CSA (I2C Slave Address Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SA6
SA5
SA4
SA3
SA2
SA1
SA0
IRW
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~1 (SA6~SA0): When the MCU is used as Master device for I2C application,
these bits are the Slave device address register.
Bit 0 (IRW): When the MCU is used as Master device for I2C application, this bit is a
Read/Write transaction control bit.
0: Write
1: Read
6.1.39 Bank 0 R33 I2CDB (I2C Data Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (DB7~DB0): I2C Receive/Transmit Data Buffer.
6.1.40 Bank 0 R34 I2CDAL (I2C Device Address Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (DA7~DA0): When the MCU is used as Slave device for I2C application, this
register stores the address of the MCU. It is used to identify the data on
the I2C bus to extract the message delivered to the MCU.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 39
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.41 Bank 0 R35 I2CDAH (I2C Device Address Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
−
−
−
DA9
DA8
−
−
−
−
−
−
R/W
R/W
Bits 7~2: Not used, set to “0” all the time.
Bits 1~0 (DA9~DA8): Device Address bits.
6.1.42 Bank 0 R36 SPICR (SPI Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CES
SPIE
SRO
SSE
SDOC
SBRS2
SBRS1
SBRS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (CES): Clock Edge Select Bit
0: Data shifts out on a rising edge, and shifts in on a falling edge. Data is
on hold during a low-level.
1: Data shifts out on a falling edge, and shift in on a rising edge. Data is
on hold during a high-level.
Bit 6 (SPIE): SPI Enable Bit
0: Disable SPI mode
1: Enable SPI mode
Bit 5 (SRO): SPI Read Overflow Bit
0: No overflow
1: A new data is received while the previous data is still being held in the
SPIR register. In this situation, the data in the SPIS register will be
destroyed. To avoid setting this bit, user is required to read the SPIR
register although only transmission is implemented. This can only
occur in Slave mode.
Bit 4 (SSE): SPI Shift Enable Bit
0: Reset as soon as shifting is completed, and the next byte is ready to
be shifted.
1: Start to shift, and remain on “1” while the current byte is still being
transmitted.
Bit 3 (SDOC): SDO Output Status Control Bit
0: After the serial data output, the SDO remains high.
1: After the serial data output, the SDO remains low.
40 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 2~0 (SBRS2~SBRS0): SPI Baud Rate Select Bits
SBRS2
SBRS1
SBRS0
Mode
SPI Baud Rate
0
0
0
Master
Fosc/2
0
0
1
Master
Fosc/4
0
1
0
Master
Fosc/8
0
1
1
Master
Fosc/16
1
0
0
Master
Fosc/32
1
0
1
Master
Fosc/64
1
1
0
Slave
/SS enable
1
1
1
Slave
/SS disable
6.1.43 Bank 0 R37 SPIS (SPI Status Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DORD
TD1
TD0
−
OD3
OD4
−
RBF
R/W
R/W
R/W
−
R/W
R/W
−
R
Bit 7 (DORD): Data Shift of Type Control Bit
0: Shift left (MSB first)
1: Shift right (LSB first)
Bits 6~5 (TD1~TD0): SDO Status Output Delay Times Options. When CPU oscillator
source use Fs from 1 CLK delay time.
TD1
TD0
Delay Time
0
0
8 CLK
0
1
16 CLK
1
0
24 CLK
1
1
32 CLK
Bit 4: Not used, set to “0” all the time.
Bit 3 (OD3): Open drain control bit
0: Open drain disable for SDO
1: Open drain enable for SDO
Bit 2 (OD4): Open drain control bit
0: Open drain disable for SCK
1: Open drain enable for SCK
Bit 1: Not used, set to “0” all the time.
Bit 0 (RBF): Read Buffer Full Flag
0: Receiving not completed, and SPIR has not fully exchanged.
1: Receiving completed, and SPIR is fully exchanged.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 41
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.44 Bank 0 R38 SPIR (SPI Read Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SRB7
SRB6
SRB5
SRB4
SRB3
SRB2
SRB1
SRB0
R
R
R
R
R
R
R
R
Bits 7~0 (SRB7~SRB0): SPI Read Data Buffer
6.1.45 Bank 0 R39 SPIW (SPI Write Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SWB7
SWB6
SWB5
SWB4
SWB3
SWB2
SWB1
SWB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (SWB7~SWB0): SPI Write Data Buffer
6.1.46 Bank 0 R3E ADCR1 (Analog-to-Digital Converter Control
Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CKR2
CKR1
CKR0
ADRUN
ADP
ADOM
SHS1
SHS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~5 (CKR2~0): Clock Rate Selection of ADC
System
Mode
Normal
Mode
Green
Mode
CKR2~0
Operating Clock
of ADC (FAD = 1 / TAD)
Max. FMain
(VDD = 2.5V ~ 3V)
Max. FMain
(VDD = 3V ~ 5.5V)
000
FMain/16
8 MHz
16 MHz
001
FMain/8
4 MHz
16 MHz
010
FMain/4
2 MHz
8 MHz
011
FMain/2
1 MHz
4 MHz
100
FMain/64
16 MHz
16 MHz
101
FMain/32
16 MHz
16 MHz
110
FMain/1
500kHz
2 MHz
111
FSub
32.768kHz
32.768kHz
xxx
FSub
32.768kHz
32.768kHz
Bit 4 (ADRUN): ADC Starts to Run
In Single mode:
0: Reset on completion of the conversion by hardware, this bit cannot be
reset by software.
1: A/D conversion starts. This bit can be set by software
42 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
In Continuous mode:
0: ADC is stopped
1: ADC is running unless this bit is reset by software
Bit 3 (ADP): ADC Power
0: ADC is in power down mode.
1: ADC is operating normally.
Bit 2 (ADOM): ADC Operation Mode Select
0: ADC operates in single mode.
1: ADC operates in continuous mode.
Bits 1~0 (SHS1~0): Sample and Hold Timing Select (Recommend at least 4 µs,
TAD: Period of ADC Operating Clock)
SHS1~0
Sample and Hold Timing
00
2 x TAD
01
4 x TAD
10
8 x TAD
11
12 x TAD
6.1.47 Bank 0 R3F ADCR2 (Analog-to-Digital Converter Control
Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
ADIM
ADCMS
VPIS1
VPIS0
VREFP
−
−
R/W
R/W
R/W
R/W
R/W
−
−
Bits 7~6: Not used, set to “0” all the time.
Bit 5 (ADIM): ADC Interrupt Mode
0: Normal mode. Interrupt occurred after AD conversion is completed.
1: Compare mode. Interrupt occurred when comparison result conforms
to the setting of ADCMS bits. Using continuous mode is
recommended.
Bit 4 (ADCMS): ADC Compare Mode Select.
Compare mode:
0: Interrupt occurs when AD conversion data is equal to or greater than
data in ADCD register (which means when ADD＞=ADCD, interrupt
occurs).
1: Interrupt occurs when AD conversion data is equal to or less than the
data in ADCD register (which means when ADD＜=ADCD, interrupt
occurs).
Normal mode: No effect
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 43
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 3 ~ 2 (VPIS1~0): Internal Positive Reference Voltage Select
VPIS1~0
00
01
10
11
Reference Voltage
AVDD
4V
3V
2V
Bit 1 (VREFP): Positive Reference Voltage Select
0: Internal positive reference voltage. The actual voltage is set by
VPIS1~0 bits
1: From VREF pin.
Bit 0: Not used, set to “0” all the time.
1.
2.
NOTE
When using the internal voltage reference and the Code Option Word 2<6>
(IRCIRS) sets to ”1”, users need to wait for at least 50 µs when the first time to
enable and stabilize the voltage reference. Un-stabilized reference makes
conversion result inaccurate. After that, users only need to wait for at least 6 μs
whenever switching voltage references.
When using the internal voltage reference and the Code Option Word 2<6>
(IRCIRS) sets to “0”, users only need to wait for at least 6 μs for the internal
voltage reference circuit stabilized whenever switching voltage references.
6.1.48 Bank 0 R40 ADISR (Analog-to-Digital Converter Input
Channel Select Register)
Bit 7
−
−
Bit 6
−
−
Bit 5
−
−
Bit 4
ADIS4
R/W
Bit 3
ADIS3
R/W
Bit 2
ADIS2
R/W
Bit 1
ADIS1
R/W
Bit 0
ADIS0
R/W
Bits 7~5: Not used, set to “0” all the time.
Bits 4~0 (ADIS4~0): ADC input channel select bits
ADIS4~0
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
Selected Channel
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
N/A
ADIS4~0
∗10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
Selected Channel
1/4 VDD Power Detect
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
* Used for internal signal source. Users only need to set ADIS4~0=10000.
These AD input channels are instantly active.
44 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.49 Bank 0 R41 ADER1 (Analog-to-Digital Converter Input
Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADE7
ADE6
ADE5
ADE4
ADE3
ADE2
ADE1
ADE0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (ADE7): ADC enable bit of P61 pin.
0: Disable AD7, P61 acts as I/O pin.
1: Enable AD7 to act as analog input pin.
Bit 6 (ADE6): ADC enable bit of P63 pin.
0: Disable AD6, P63 acts as I/O pin
1: Enable AD6 to act as analog input pin
Bit 5 (ADE5): ADC enable bit of P64 pin.
0: Disable AD5, P64 acts as I/O pin
1: Enable AD5 to act as analog input pin
Bit 4 (ADE4): ADC enable bit of P65 pin.
0: Disable AD4, P65 acts as I/O pin
1: Enable AD4 to act as analog input pin
Bit 3 (ADE3): ADC enable bit of P66 pin.
0: Disable AD3, P66 act as I/O pin
1: Enable AD3 to act as analog input pin
Bit 2 (ADE2): ADC enable bit of P67 pin.
0: Disable AD2, P67 acts as I/O pin
1: Enable AD2 to act as analog input pin
Bit 1 (ADE1): ADC enable bit of P72 pin.
0: Disable AD1, P72 acts as I/O pin
1: Enable AD1 to act as analog input pin
Bit 0 (ADE0): ADC enable bit of P73 pin.
0: Disable AD0, P73 acts as I/O pin
1: Enable AD0 to act as analog input pin
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 45
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.50 Bank 0 R42 ADER2 (Analog-to-Digital Converter Input
Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
ADE14
ADE13
ADE12
ADE11
ADE10
ADE9
ADE8
−
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7: Not used, set to “0” all the time.
Bit 6 (ADE14): ADC enable bit of P95 pin.
0: Disable AD14, P95 acts as I/O pin
1: Enable AD14 to act as analog input pin
Bit 5 (ADE13): ADC enable bit of P94 pin.
0: Disable AD13, P94 acts as I/O pin
1: Enable AD13 to act as analog input pin
Bit 4 (ADE12): ADC enable bit of P93 pin.
0: Disable AD12, P93 acts as I/O pin
1: Enable AD12 to act as analog input pin
Bit 3 (ADE11): ADC enable bit of P92 pin.
0: Disable AD11, P92 acts as I/O pin
1: Enable AD11 to act as analog input pin
Bit 2 (ADE10): ADC enable bit of P91 pin.
0: Disable AD10, P91 acts as I/O pin
1: Enable AD10 to act as analog input pin
Bit 1 (ADE9): ADC enable bit of P90 pin.
0: Disable AD9, P90 acts as I/O pin
1: Enable AD9 to act as analog input pin
Bit 0 (ADE8): ADC enable bit of P60 pin.
0: Disable AD8, P60 acts as I/O pin
1: Enable AD8 to act as analog input pin
46 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.51 Bank 0 R43 ADDL (Low Byte of Analog-to-Digital Converter
Data)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADD7
ADD6
ADD5
ADD4
ADD3
ADD2
ADD1
ADD0
R
R
R
R
R
R
R
R
Bits 7~0 (ADD7~ ADD0): Low Byte of AD Data Buffer
6.1.52 Bank 0 R44 ADDH (High Byte of Analog-to-Digital
Converter Data)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADD15
ADD14
ADD13
ADD12
ADD11
ADD10
ADD9
ADD8
R
R
R
R
R
R
R
R
Bits 7~0 (ADD15~ ADD8): High Byte of AD Data Buffer.
The format of AD data is dependent on Code Option ADFM. The following table shows
how the data justify the different ADFM settings.
ADFM1~0
0
12 bits
1
Bit 7
Bit 6
Bit 5
Bit 4
-
-
-
-
ADDH
Bit 3
Bit 2
Bit 1
Bit 0
ADD11 ADD10 ADD9 ADD8
ADDL ADD7 ADD6 ADD5 ADD4 ADD3 ADD2 ADD1 ADD0
ADDH ADD11 ADD10 ADD9 ADD8 ADD7 ADD6 ADD5 ADD4
ADDL
-
-
-
-
ADD3 ADD2 ADD1 ADD0
6.1.53 Bank 0 R45 ADCVL (Low Byte of Analog-to-Digital
Converter Compare Value)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADCV7
ADCV6
ADCV5
ADCV4
ADCV3
ADCV2
ADCV1
ADCV0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (ADCV7~ ADCV0): Low Byte Data for AD Compare Value.
User should use the data format as with ADDH and ADDL register. Otherwise faulty
values will result after AD comparison.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 47
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.54 Bank 0 R46 ADCVH (High Byte of Analog-to-Digital
Converter Compare Value)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADCV15
ADCV14
ADCV13
ADCV12
ADCV11
ADCV10
ADCV9
ADCV8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (ADCV15~ ADCV8): High Byte Data for AD Compare Value
User should use the data format as with ADDH and ADDL registers. Otherwise, faulty
values will result after AD comparison.
6.1.55 Bank 0 R48 LCDCR1 (LCD Driver Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LCDEN
LCDTYPE
−
BS
DS1
DS0
LCDF1
LCDF0
R/W
−
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (LCDEN): LCD enable bit
0: Disable LCD driver Power-on during COM/SEG initial pull-low
1: Enable LCD driver
Bit 6 (LCDTYPE): LCD type select bit
0: A type waveform
1: B type waveform
Bit 5: Not used, set to “0” all the time.
Bit 4 (BS): bias select bit
BS
LCD bias
0
1/2 bias
1
1/3 bias
Bits 3~2 (DS1~DS0): LCD duty select bits
48 •
DS1
DS0
LCD duty
0
0
1/2 duty
0
1
1/3 duty
1
0
1/4 duty
1
1
1/8 duty
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 1~0 (LCDF1~LCDF0): LCD frame rate select bits
LCD Frame Frequency (Fs=32.768kHz from Cystal Osciilator)
LCDF1
LCDF0
1/2 duty
1/3 duty
1/4 duty
1/8 duty
0
0
Fs/(2*8*8*4)=64.0
Fs/(3*8*11*2)=62.0
Fs/(4*8*8*2)=64.0
Fs/(8*8*8)=64.0
0
1
Fs/(2*8*9*4)=56.8
Fs/(3*8*12*2)=56.8
Fs/(4*8*9*2)=56.8
Fs/(8*8*9)=56.8
1
0
Fs/(2*8*10*4)=51.2
Fs/(3*8*13*2)=52.5
Fs/(4*8*10*2)=51.2
Fs/(8*8*10)=51.2
1
1
Fs/(2*8*7*4)=73.1
Fs/(3*8*10*2)=68.2
Fs/(4*8*7*2)=73.1
Fs/(8*8*7)=73.1
LCDF1
LCDF0
LCD Frame Frequency (*Fs≒32kHz from IRC)
1/2 duty
1/3 duty
1/4 duty
1/8 duty
0
0
Fs/(2*8*8*4)=62.5
Fs/(3*8*11*2)=60.6
Fs/(4*8*8*2) =62.5
Fs/(8*8*8)=62.5
0
1
Fs/(2*8*9*4)=55.6
Fs/(3*8*12*2)=55.6
Fs/(4*8*9*2) =55.6
Fs/(8*8*9)=55.6
1
0
Fs/(2*8*10*4)=50.0
Fs/(3*8*13*2)=51.3
Fs/(4*8*10*2) =50.0
Fs/(8*8*10)=50.0
1
1
Fs/(2*8*7*4)=71.4
Fs/(3*8*10*2)=66.7
Fs/(4*8*7*2) =71.4
Fs/(8*8*7)=71.4
Note: *The 32kHz frequency from the internal RC is dedicated for LCD application, not for the MCU kernel.
6.1.56 Bank 0 R49 LCDCR2 (LCD Driver Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
RBS1
R/W
RBS0
R/W
DYMEN
R/W
−
−
−
−
−
−
−
−
Bit 7: Not used, set to “0” all the time.
Bits 6~5 (RBS1~ RBS0): Resistor for Resistive Bias Selection
Bias
1/2
1/3
RBS1~0
00
01
10
11
00
01
10
11
Ohms (Ω)
270k
150k
90k
30k
180k
100k
60k
20k
Bit 4 (DYMEN): Dynamic Mode Enable
0: Disable
1: Enable
When Dynamic mode is enabled, 1/8 Clock LCD resistance of 20kΩ will
switch to fast charging and 7/8 Clock LCD selection of LCD bias stalls
resistance (RBS1 ~ 0 ≠ 11). If selected RBS1 ~ 0 = 11 (20kΩ) do not
perform switching action.
Bits 3~0: Not used, set to “0” all the time.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 49
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.57 Bank 0 R4A LCDCR3 (LCD Driver Control Register 3)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
−
−
−
−
−
−
LCDCC2
LCDCC1
LCDCC0
R/W
R/W
R/W
−
Bits 7~3: Not used, set to “0” all the time.
Bits 2~0 (LCDCC2~ LCDCC0): LCD Contrast Control (Only for R-Type LCD)
LCDCC2~0
VLCD
000
1 x VDD
001
0.96 x VDD
010
0.93 x VDD
011
0.87 x VDD
100
0.82 x VDD
101
0.74 x VDD
110
0.66 x VDD
111
0.60 x VDD
6.1.58 Bank 0 R4B LCDADDR (Address of LCD RAM)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
LCDA4
LCDA3
LCDA2
LCDA1
LCDA0
−
−
−
R/W
R/W
R/W
R/W
R/W
Bits 7~5: Not used, set to “0” all the time.
Bits 4~0 (LCDA4~ LCDA0): Address of LCD RAM. This register is used for 00H~16H
corresponding to SEG0~SEG22.
6.1.59 Bank 0 R4C LCDDB (Data of LCD RAM)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LCDD7
LCDD6
LCDD5
LCDD4
LCDD3
LCDD2
LCDD1
LCDD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (LCDD7~ LCDD0): LCD RAM data register
50 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
The following table shows the organization of the LCD RAM and the relation between
the Data RAM and the LCD signal
Address
of LCD
Bit 7
RAM
(LCDD7)
Data of LCD RAM
Bit 6
(LCDD6)
Bit 5
(LCDD5)
Bit 4
Bit 3
Bit 2
Bit 1
(LCDD4) (LCDD3) (LCDD2) (LCDD1)
Bit 0
(LCDD0)
SEG
0x00h
-
-
-
-
-
-
-
-
SEG0
0x01h
-
-
-
-
-
-
-
-
SEG1
0x02h
-
-
-
-
-
-
-
-
SEG2
|
|
|
|
|
|
|
|
|
|
0x14h
-
-
-
-
-
-
-
-
SEG20
0x15h
-
-
-
-
-
-
-
-
SEG21
0x16h
-
-
-
-
-
-
-
-
SEG22
COM
COM7
COM6
COM5
COM4
COM3
COM2
COM1
COM0
−
6.1.60
Bit 7
−
−
Bank 0 R4D LCDSCR0 (LCD COM/SEG Pin Control Register 0)
Bit 6
Bit 5
Bit 4
LCDSM2 LCDSM1 LCDSM0
R/W
R/W
R/W
Bit 3
−
−
Bit 2
Bit 1
LCDCM2 LCDCM1
R/W
R/W
Bit 0
LCDCM0
R/W
Bit 7: Not used, set to 0 all the time
Bits 6~4 (LCDSM2~ LCDSM0): LCD pin switch for SEG16~SEG22
LCDSM
2~0
Number of
SEG signals
Description
x00
16 segments
mode max.
(default)
SEG0~SEG15 pins are switched individually.
SEG16~SEG22 pins are switched to general purpose I/O ports.
001
18 segments
mode max.
SEG0~SEG15 pins are switched individually.
SEG16~SEG17 pins are switched to LCD segment signals.
SEG18~SEG22 pins are switched to general purpose I/O ports.
010
20 segments
mode max.
SEG0~SEG15 pins are switched individually.
SEG16~SEG19 pins are switched to LCD segment signals.
SEG20~SEG22 pins are switched to general purpose I/O ports.
x11
23 segments
mode max.
SEG0~SEG15 pins are switched individually.
SEG16~SEG22 pins are switched to LCD segment signals.
101
17 segments
mode max.
SEG0~SEG15 pins are switched individually.
SEG16~SEG21 pins are switched to general purpose I/O ports.
SEG22 pin is switched to LCD segment signals.
110
18 segments
mode max.
SEG0~SEG15 pins are switched individually.
SEG16~SEG19 pins are switched to general purpose I/O ports.
SEG20~SEG22 pins are switched to LCD segment signals.
Bit 3: Not used, set to “0” all the time.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 51
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 2~0 (LCDCM2~ LCDCM0): LCD port switch for COM0~COM7.
LCDCM
2~0
Number of
COM signals
Description
0xx
No common mode
COM0~COM7 pins are switched to general purpose I/O ports.
(default)
100
2 common modes
101
3 common modes
110
4 common modes
111
8 common modes COM0~COM7 pins are switched to LCD common signals.
COM0~COM1 pins are switched to LCD common signals.
COM2~COM7 pins are switched to general purpose I/O ports.
COM0~COM2 pins are switched to LCD common signals.
COM3~COM7 pins are switched to general purpose I/O ports.
COM0~COM3 pins are switched to LCD common signals.
COM4~COM7 pins are switched to general purpose I/O ports.
6.1.61 Bank 0 R4E LCDSCR1 (LCD SEG Pin Control Register 1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (SEG7~ SEG0): LCD Pin Switch for SEG7~SEG0
0: Function as normal I/O or other functions (default)
1: Function as LCD segment pins
6.1.62 Bank 0 R4F LCDSCR2 (LCD Segment Control Register 2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (SEG15~ SEG8): LCD Pin Switch for SEG15~SEG8
0: Function as normal I/O or other functions (default)
1: Function as LCD segment pins
6.1.63 Bank 1 R5~R7 IOCR8~IOCA
These registers are used to control I/O port direction. They are both readable and
writable.
0: Put the relative I/O pin as output
1: Put the relative I/O pin into high impedance
52 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.64 Bank 1 R8 P5PHCR (Port 5 Pull-high Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PH57
PH56
PH55
PH54
PH53
PH52
PH51
PH50
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (PH57~PH50): Control bit used to enable pull-high of the P57~P50 pins
0: Enable internal pull-high
1: Disable internal pull-high
6.1.65 Bank 1 R9 P6PHCR (Port 6 Pull-high Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PH67
PH66
PH65
PH64
PH63
PH62
PH61
PH60
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (PH67~PH60): Control bit used to enable pull-high of the
P67~P60 pin s
0: Enable internal pull-high
1: Disable internal pull-high
6.1.66
Bank 1 RA P789APHCR (Port 7~A Pull-high Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PAHPH
PALPH
P9HPH
P9LPH
P8HPH
P8LPH
P7HPH
P7LPH
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (PAHPH): Control bit used to enable pull-high of Port A high nibble (PA7~PA4) pin
Bit 6 (PALPH): Control bit used to enable pull-high of Port A low nibble (PA3~PA0) pin
Bit 5 (P9HPH): Control bit used to enable pull-high of Port 9 high nibble (P97~P94) pin
Bit 4 (P9LPH): Control bit used to enable pull-high of Port 9 low nibble (P93~P90) pin
Bit 3 (P8HPH): Control bit used to enable pull-high of Port 8 high nibble (P87~P84) pin
Bit 2 (P8LPH): Control bit used to enable pull-high of Port 8 low nibble (P83~P80) pin
Bit 1 (P7HPH): Control bit used to enable pull-high of Port 7 high nibble (P77~P74) pin
Bit 0 (P7LPH): Control bit used to enable pull-high of Port 7 low nibble (P73~P72) pin
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 53
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.67 Bank 1 RB P5PLCR (Port 5 Pull-low Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PL57
PL56
PL55
PL54
PL53
PL52
PL51
PL50
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (PL57~PL50): Control bit used to enable pull-low of P57~P50 pins
0: Enable internal pull-low
1: Disable internal pull-low
6.1.68 Bank 1 RC P6PLCR (Port 6 Pull-low Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PL67
PL66
PL65
PL64
PL63
PL62
PL61
PL60
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (PL67~PL60): Control bit used to enable pull-low of P67~P60 pins
0: Enable internal pull-low
1: Disable internal pull-low
6.1.69 Bank 1 RD P789APLCR (Port 7~A Pull-low Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PAHPL
PALPL
P9HPL
P9LPL
P8HPL
P8LPL
P7HPL
P7LPL
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (PAHPL): Control bit used to enable pull-low of Port A high nibble (PA7~PA4) pin
Bit 6 (PALPL): Control bit used to enable pull-low of Port A low nibble (PA3~PA0) pin
Bit 5 (P9HPL): Control bit used to enable pull-low of Port 9 high nibble (P97~P94) pin
Bit 4 (P9LPL): Control bit used to enable pull-low of Port 9 low nibble (P93~P90) pin
Bit 3 (P8HPL): Control bit used to enable pull-low of Port 8 high nibble (P87~P84) pin
Bit 2 (P8LPL): Control bit used to enable pull-low of Port 8 low nibble (P83~P80) pin
Bit 1 (P7HPL): Control bit used to enable pull-low of Port 7 high nibble (P77~P74) pin
Bit 0 (P7LPL): Control bit used to enable pull-low of Port 7 low nibble (P73~P72) pin
54 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.70 Bank 1 RE P5HDSCR (Port 5 High Drive/Sink Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
H57
H56
H55
H54
H53
H52
H51
H50
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (H57~H50): P57~P50 high drive/sink current control bits
0: Enable high drive/sink
1: Disable high drive/sink
6.1.71 Bank 1 RF P6HDSCR (Port 6 High Drive/Sink Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
H67
H66
H65
H64
H63
H62
H61
H60
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (H67~H60): P67~P60 high drive/sink current control bits
0: Enable high drive/sink
1: Disable high drive/sink
6.1.72 Bank 1 R10 P789AHDSCR (Port 7~A High Drive/Sink
Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PAHHDS
PALHDS
P9HHDS
P9LHDS
P8HHDS
P8LHDS
P7HHDS
P7LHDS
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (PAHHDS): Control bit used to enable high drive/sink of Port A high nibble
(PA7~PA4) pin
Bit 6 (PALHDS): Control bit used to enable high drive/sink of Port A low nibble
(PA3~PA0) pin
Bit 5 (P9HHDS): Control bit used to enable high drive/sink of Port 9 high nibble
(P97~P94) pin
Bit 4 (P9LHDS): Control bit used to enable high drive/sink of Port 9 low nibble
(P93~P90) pin
Bit 3 (P8HHDS): Control bit used to enable high drive/sink of Port 8 high nibble
(P87~P84) pin
Bit 2 (P8LHDS): Control bit used to enable high drive/sink of Port 8 low nibble
(P83~P80) pin
Bit 1 (P7HHDS): Control bit used to enable high drive/sink of Port 7 high nibble
(P77~P74) pin
Bit 0 (P7LHDS): Control bit used to enable high drive/sink of Port 7 low nibble
(P73~P72) pin
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 55
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.73 Bank 1 R11 P5ODCR (Port 5 Open-drain Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
OD57
OD56
OD55
OD54
OD53
OD52
OD51
OD50
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (OD57~OD50): P57~P50 Open-drain control bits
0: Disable open-drain function
1: Enable open-drain function
6.1.74 Bank 1 R12 P6ODCR (Port 6 Open-drain Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
OD67
OD66
OD65
OD64
OD63
OD62
OD61
OD60
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (OD67~OD60): P67~P60 Open-drain control bits
0: Disable open-drain function
1: Enable open-drain function
6.1.75 Bank 1 R13 P789AODCR (Port 7~A Open-drain Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PAHOD
PALOD
P9HOD
P9LOD
P8HOD
P8LOD
P7HOD
P7LOD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (PAHOD): Control bit used to enable open-drain of Port A high nibble (PA7~PA4) pin
Bit 6 (PALOD): Control bit used to enable open-drain of Port A low nibble (PA3~PA0) pin
Bit 5 (P9HOD): Control bit used to enable open-drain of Port 9 high nibble (P97~P94) pin
Bit 4 (P9LOD): Control bit used to enable open-drain of Port 9 low nibble (P93~P90) pin
Bit 3 (P8HOD): Control bit used to enable open-drain of Port 8 high nibble (P87~P84) pin
Bit 2 (P8LOD): Control bit used to enable open-drain of Port 8 low nibble (P83~P80) pin
Bit 1 (P7HOD): Control bit used to enable open-drain of Port 7 high nibble (P77~P74) pin
Bit 0 (P7LOD): Control bit used to enable open-drain of Port 7 low nibble (P73~P72) pin
56 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.76 Bank 1 R33 URCR (UART Control Register)
Bit 6
Bit 7
UINVEN
Bit 5
UMODE1 UMODE0
R/W
R/W
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BRATE2
BRATE1
BRATE0
UTBE
TXE
R/W
R/W
R/W
R
R/W
R/W
Bit 7 (UINVEN): Enable UART TXD and RXD Port Inverse Output Bit
0: Disable TXD and RXD port inverse output.
1: Enable TXD and RXD port inverse output.
Bits 6~5 (UMODE1~UMODE0): UART mode select bits
UMODE1
UMODE0
UART Mode
0
0
7-bit
0
1
8-bit
1
0
9-bit
1
1
Reserved
Bits 4~2 (BRATE2~BRATE0): Transmit Baud rate select
BRATE2
BRATE1
BRATE0
Baud Rate
8 MHz
0
0
0
Fc/13
38400
0
0
1
Fc/26
19200
0
1
0
Fc/52
9600
0
1
1
Fc/104
4800
1
0
0
Fc/208
2400
1
0
1
Fc/416
1200
1
1
0
TC3
−
1
1
1
Reserved
Bit 1 (UTBE): UART transfer buffer empty flag. Set to “1” when transfer buffer is empty.
Reset to ”0” automatically when writing to the URTD register. The UTBE bit will be
cleared by hardware when enabling transmission. The UTBE bit is read-only.
Therefore, writing to the URTD register is necessary in starting transmission shifting.
Bit 0 (TXE): Enable transmission
0: Disable
1: Enable
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 57
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.77 Bank 1 R34 URS (UART Status Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
URTD8
EVEN
PRE
PRERR
OVERR
FMERR
URBF
RXE
W
R/W
R/W
R/W
R/W
R/W
R
R/W
Bit 7 (URTD8): UART Transmit Data Bit 8. Write only.
Bit 6 (EVEN): Select parity check
0: Odd parity
1: Even parity
Bit 5 (PRE): Enable parity addition
0: Disable
1: Enable
Bit 4 (PRERR): Parity error flag. Set to 1 when parity error occurred, clear to 0 by
software.
Bit 3 (OVERR): Over running error flag. Set to 1 when overrun error occurred, clear to
0 by software.
Bit 2 (FMERR): Framing error flag. Set to 1 when framing error occurred, clear to 0 by
software.
Bit 1 (URBF): UART read buffer full flag. Set to 1 when one character is received.
Reset to 0 automatically when read from the URS register. URBF will
be cleared by hardware when enabling receiving. The URBF bit is
read-only. Therefore, reading the URS register is necessary to avoid
overrun error.
Bit 0 (RXE): Enable receiving
0: Disable
1: Enable
6.1.78 Bank 1 R35 URTD (UART Transmit Data Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
URTD7
URTD6
URTD5
URTD4
URTD3
URTD2
URTD1
URTD0
W
W
W
W
W
W
W
W
Bits 7~0 (URTD7~URTD0): UART transmit data buffer. Write only.
58 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.79 Bank 1 R36 URRDL (UART Receive Data Low Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
URRD7
URRD6
URRD5
URRD4
URRD3
URRD2
URRD1
URRD0
R
R
R
R
R
R
R
R
Bits 7~0 (URRD7~URRD0): UART Receive Data Buffer. Read only.
6.1.80 Bank 1 R37 URRDH (UART Receive Data High Buffer Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
URRD8
−
−
−
−
−
−
−
R
−
−
−
−
−
−
−
Bit 7 (URRD8): UART Receive Data Bit 8. Read only.
Bits 6~0: Not used, set to “0” all the time.
6.1.81 Bank 1 R40 WCR (Watch Timer Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
WTE
WTSSB1
WTSSB0
−
−
−
−
−
R/W
R/W
R/W
−
−
−
−
−
Bit 7 (WTE): Watch Timer Enable Bit
0: Disable
1: Enable
Bits 6~5 (WTSSB1~ WTSSB0): Watch Timer Interval Select Bits
WTSSB1
WTSSB0
Timer Interval Select
Timer Interval Select
(LXT2=32.768kHz)
0
0
32768/Fs
1.0s
0
1
16384/Fs
0.5s
1
0
8192/Fs
0.25s
1
1
128/Fs
3.91ms
Bits 4~0: Not used, set to “0” all the time.
6.1.82 Bank 1 R45 TBPTL (Table Pointer Low Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TB7
TB6
TB5
TB4
TB3
TB2
TB1
TB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 7~0 (TB7~TB0): Table Pointer Address Bits 7~0.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 59
EM78P528N
8-Bit Microprocessor with OTP ROM
6.1.83 Bank 1 R46 TBPTH (Table Pointer High Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
HLB
GP1
GP0
TB12
TB11
TB10
TB9
TB8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7 (HLB): Take MLB or LSB at machine code
Bits 6~5 (GP1~GP0): General Purpose read/write bits
Bits 4~0 (TB12~TB8): Table Pointer Address Bits 12~8.
6.1.84 Bank 1 R47 STKMON (Stack Monitor)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STOV
−
−
−
STL3
STL2
STL1
STL0
R
−
−
−
R
R
R
R
Bit 7 (STOV): Stack pointer overflow indication bit. Read only.
Bits 6~4: Not used, set to “0” all the time.
Bits 3~0 (STL3~ STL0): Stack pointer number. Read only.
6.1.85 Bank 1 R48 PCH (Program Counter High)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
−
−
−
PC12
PC11
PC10
PC9
PC8
−
−
−
R/W
R/W
R/W
R/W
R/W
Bits 7~5: Not used, set to “0” all the time.
Bits 4~0 (PC12~PC8): Program Counter high byte.
6.1.86 Bank 1 R49 LVDCR (Low Voltage Detector Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LVDEN
LVDS2
LVDS1
LVDS0
LVDB
−
−
−
R/W
R/W
R/W
R/W
R
−
−
−
Bit 7 (LVDEN): Low Voltage Detector Enable Bit
0: Disable low voltage detector
1: Enable low voltage detector
60 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 6~4 (LVDS2~LVDS0): Low Voltage Detector Level Bits
LVDEN
LVDS2~0
1
011
1
010
1
001
1
000
0
XX
LVD Voltage Interrupt Level
LVDB
VDD < 2.2V
0
VDD > 2.2V
1
VDD < 3.3V
0
VDD > 3.3V
1
VDD < 4.0V
0
VDD > 4.0V
1
VDD < 4.5V
0
VDD > 4.5V
1
NA
1
Bit 3 (LVDB): Low Voltage Detector State Bit. This is a read only bit. When the VDD
pin voltage is lower than LVD voltage interrupt level (selected by LVDS2
~ LVDS0), this bit will be cleared.
0: Low voltage is detected.
1: Low voltage is not detected or LVD function is disabled.
Bits 2~0: Not used, set to “0” all the time.
6.1.87 Bank 1 R4A~R4C: (Reserve)
6.1.88 Bank 0 R50~R7F, Bank 0~3 R80~RFF
All of these are 8-bit general-purpose registers.
6.2 TCC/WDT and Prescaler
There are two 8-bit counters available as prescalers for the TCC and WDT
respectively. The TPSR0~ TPSR2 bits of the TCCCR register (Bank 0 R22) are used to
determine the ratio of the TCC prescaler. Likewise, the WPSR0~WPSR2 bits of the
WDTCR register (Bank 0 R21) are used to determine the prescaler of WDT. The
prescaler counter will be cleared by the instructions each time they are written into
TCC. The WDT and prescaler counter will be cleared by the “WDTC” and “SLEP”
instructions. Figure 6-3 depicts the Block Diagram of TCC/WDT.
The clock source of TCC can be internal clock or external signal input (edge selectable
from the TCC pin). If the TCC signal source is from an internal clock, the TCC will be
incremented by 1 at Fc clock (without prescaler). If the TCC signal source is from an
external clock input, the TCC will be incremented by 1 at every falling edge or rising
edge of the TCC pin. The TCC pin input time length (kept in High or low level) must be
greater than 1/Fc. The TCC will stop running when sleep mode occurs.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 61
EM78P528N
8-Bit Microprocessor with OTP ROM
The Watchdog timer is a free running on-chip RC oscillator. The WDT will keep on
running even after the oscillator driver has been turned off (i.e. in sleep mode). During
normal operation or sleep mode, a WDT time-out (if enabled) will cause the device to
reset. The WDT can be enabled or disabled at any time during normal mode by
software programming. Refer to WDTE bit of WDTCR (Bank 0 R21) register. With no
prescaler, the WDT time-out period is approximately 16 ms 1 (one oscillator start-up
timer period).
Figure 6-3 TCC and WDT Block Diagram
6.3 I/O Ports
The I/O registers, Port 5~Port A are bidirectional tri-state I/O ports. All can be
pulled-high and pulled-low internally by software. In addition, they can also have
open-drain output and high sink/drive setting by software. Ports 5~8 have wake up and
interrupt function. Furthermore, Ports 5~8 also have input status change interrupt
function. Each I/O pin can be defined as "input" or "output" pin by the I/O control
register (IOC5 ~ IOCA).
The I/O registers and I/O control registers are both readable and writable. The I/O
interface circuits for Port 5 ~ Port A are shown in Figures 6-4~6-7.
1
62 •
VDD=2.1~5.5V, Temp= -40°C~85°C, WDT Time-out period = 16ms ± 10%.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
PCRD
PORT
Q
P
R
_
Q
C
L
Q
_
Q
P
R
C
L
D
CLK
PCWR
IOD
D
CLK
PDWR
PDRD
0
1
M
U
X
Note: Pull-down is not shown in the figure.
Figure 6-4 Circuit of I/O Port and I/O Control Register for Port 9~A
Note: Pull-high (down) and Open-drain are not shown in the figure.
Figure 6-5 Circuit of I/O Port and I/O Control Register for /INT
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 63
EM78P528N
8-Bit Microprocessor with OTP ROM
PCRD
P61~P67
PORT
0
1
Q
_
Q
P
R D
CLK
C
L
PCWR
Q
_
Q
P
R D
CLK
C
L
PDWR
IOD
M
U
X
TIN
PDRD
P
R
CLK
C
L
D
Q
_
Q
Note: Pull-high (down) and Open-drain are not shown in the figure.
Figure 6-6 Circuit of I/O Port and I/O Control Register for Ports 5~8
IOCE.1
D
P
R
Q
Interrupt
CLK
_
C Q
L
RE.
1
ENI Instruction
P
D R Q
T10
T11
CLK
_
C Q
L
P
Q R
D
CLK
_
Q C
L
T17
DISI Instruction
/SLEP
Interrupt
(Wake-up from SLEEP)
Next Instruction
(Wake-up from SLEEP)
Figure 6-7 Block Diagram of I/O Port 5~8 with Input Change Interrupt/Wake-up
64 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Table 1 Usage of Ports 5~8 Input Changed Wake-up/Interrupt Function
Usage of Ports 5~8 Input Status Changed Wake-up/Interrupt
(I) Wake-up
(II) Wake-up and interrupt
(a) Before Sleep
(a) Before Sleep
1. Disable WDT
1. Disable WDT
2. Read I/O Port (MOV R6,R6)
2. Read I/O Port (MOV R6,R6)
3. Execute "ENI" or "DISI"
3. Execute "ENI" or "DISI"
4. Enable wake-up bit (Set WUE6H=1, WUE6L=1)
4. Enable wake-up bit (Set WUE6H=1, WUE6L=1)
5. Execute "SLEP" instruction
5. Enable interrupt (Set ICIE =1)
(b) After wake-up
6. Execute "SLEP" instruction
→ Next instruction
(b) After wake-up
1. IF "ENI" → Interrupt vector (0006H)
2. IF "DISI" → Next instruction
6.4 Reset and Wake-up
6.4.1 Reset
A reset is initiated by one of the following events(1) Power-on reset
(2) /RESET pin input "low"
(3) WDT time-out (if enabled)
(4) LVR (if enabled)
The device is kept in a reset condition for a period of approx. 16ms 2 (one oscillator
start-up timer period) after the reset is detected. If the /Reset pin goes “low” or WDT
time-out is active, a reset is generated, in IRC mode the reset time is WSTO and 8
clocks, High XTAL mode reset time is WSTO and 510 clocks. In low XTAL mode, the
reset time is WSTO and 510 clocks (Fsub). Once a reset occurs, the following functions
are performed. Refer to Figure 6-8.
„
The oscillator is running, or will be started.
„
The Program Counter (R2) is set to all "0".
„
All I/O port pins are configured as input mode (high-impedance state).
„
The Watchdog timer and prescaler are cleared.
„
The control register bits are set according to the entries shown in Table 2 Summary
of Register Initial Values after Reset.
2
VDD=2.1~5.5V, Temp=-40°C~85°C, WDT time-out period = 16ms ± 10%.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 65
EM78P528N
8-Bit Microprocessor with OTP ROM
Sleep (power down) mode is asserted by executing the “SLEP” instruction. While
entering sleep mode, WDT (if enabled) is cleared but keeps on running. After wake-up
is generated, in IRC mode the wake-up time is WSTO and 8 clocks, High XTAL mode
wake-up time is WSTO and 510 clocks. In low XTAL mode, the wake-up time is WSTO
and 510 clocks (Fsub). The controller can be awakened by :
(1) External reset input on /RESET pin.
(2) WDT time-out (if enabled).
(3) External (/INT) pin changes (if INTWKX is enabled).
(4) Port input status changes (if ICWKPX is enabled).
(5) SPI received data when SPI acts as a Slave device (if SPIWK is enabled).
(6) I2C received data when I2C acts as a Slave device (if I2CWK is enabled).
(7) Low Voltage Detector (if LVDWK enable).
(8) A/D conversion completed (if ADWK is enabled).
The first two cases will cause the EM78P528N to reset. The T and P flags of R3 can be
used to determine the source of the reset (wake-up). Case 3~8 are considered the
continuation of program execution and the global interrupt ("ENI" or "DISI" being
executed) determines whether or not the controller branches to the interrupt vector
following a wake-up. If ENI is executed before SLEP, the instruction will begin to
execute from the Address 0X02~0X38 by each interrupt vector after wake-up. If DISI is
executed before SLEP, the execution will restart from the instruction right next to SLEP
after wake-up.
Only one of Cases 3 to 8 can be enabled before entering into sleep mode. That is,
[a] If WDT is enabled before SLEP, the EM78P528N can be waken-up only by Case 1
or Case 2. For further details refer to Section 6.5, Interrupt.
[b] If the External (INT9~0) pin change is used to wake-up the EM78P528N and the
INTWKX bit is enabled before SLEP, WDT must be disabled. Hence, the
EM78P528N can be waken-up only by Case 3.
[c] If Port Input Status Change is used to wake-up the EM78P528N and the
corresponding wake-up setting is enabled before SLEP, WDT must be disabled.
Hence, the EM78P528N can be waken-up only by Case 4.
[d] When SPI acts as Slave device, after receiving data the EM78P528N will wake-up
and the SPIWK bit of Bank 0 R11 register is enabled before SLEP, WDT must be
disabled by software. Hence, the EM78P528N can be waken-up only by Case 5.
66 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
2
[e] When I C acts as Slave device, after receiving data, the EM78P528N will wake-up
and the I2CWK bit of Bank 0 R11 register is enabled before SLEP, WDT must be
disabled by software. Hence, the EM78P528N can be waken-up only by Case 6.
[f] If Low voltage detector is used to wake-up the EM78P528N and the LVDWK bit of
Bank 0 R10 register is enabled before SLEP, WDT must be disabled by software.
Hence, the EM78P528N can be wake-up only by Case 7.
[g] If AD conversion completed is used to wake-up the EM78P528N and the ADWK bit
of Bank 0 R10 register is enabled before SLEP, WDT must be disabled by software.
Hence, the EM78P528N can be waken-up only by Case 8.
Table 2 All kinds of Wake-up modes and Interrupt modes are shown below:
Wake-up
Signal
Condition
Signal
Sleep Mode
DISI
ENI
TCIE=0
TCC
(Used as
Timer)
TCIE=1
TC1/2/3
Interrupt
(Used as
Timer)
TC1/2/3
Interrupt
(Used as
Counter)
TCIE=1
Wake-up is invalid
DISI
Wake-up is invalid
Wake-up is invalid
TC1/2/3IE=1
Wake-up is invalid
Wake-up is invalid
WTIE=1
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
−
Interrupt
+
Interrupt
Vector
Interrupt is invalid
Interrupt
+
Interrupt
Vector
Interrupt is invalid
Wake up Wake up Wake up Wake up
+
+
+
+
Next
TC1/2/3IE=1
Next
Interrupt
Next
Interrupt Instruction
Instruction Vector Instruction Vector
Wake-up is invalid.
Interrupt
+
Interrupt
Vector
Interrupt is invalid
Wake up Wake up
+
+
Next
Next
Interrupt Instruction
Instruction Vector
Wake-up is invalid
ENI
Interrupt is invalid
Wake up Wake up
+
+
Next
Next
Interrupt Instruction
Instruction Vector
Wake-up is invalid
WTIE=0
Watch
Timer
ENI
Green Mode
Wake up Wake up Wake up Wake up
+
+
+
+
Next
Next
Interrupt
Next
Interrupt Instruction
Instruction Vector Instruction Vector
TC1/2/3IE=0
TC1/2/3IE=0
DISI
Wake-up is invalid
Wake-up is invalid
TCIE=0
TCC
(Used as
Counter)
Idle Mode
Interrupt
+
Interrupt
Vector
Interrupt is invalid.
Wake up
+
Next
Interrupt Instruction
Vector
Interrupt
+
Interrupt
Vector
Normal Mode
DISI
ENI
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid.
Interrupt
Next
+
Instruction Interrupt
Vector
• 67
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Wake-up
Signal
External
INT
Condition
Signal
Sleep Mode
DISI
ENI
Idle Mode
DISI
ENI
INTWKx = 0,
EXIEx = 0
Wake-up is invalid
Wake-up is invalid
INTWKx = 0,
EXIEx = 1
Wake-up is invalid
Wake-up is invalid
INTWKx = 1,
EXIEx = 0
Green Mode
DISI
ENI
Interrupt is invalid
Next
Instruction
DISI
ENI
Interrupt is invalid
Interrupt +
Interrupt +
Next
Interrupt
Interrupt
Instruction
Vector
Vector
Wake up +
Wake up +
Interrupt is invalid
Next Instruction
Next Instruction
Wake up Wake up Wake up Wake up
Interrupt
INTWKx = 1,
+
+
+
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt
EXIEx = 1
Instruction Vector Instruction Vector
Vector
ICWKPx = 0,
Wake-up is invalid
Wake-up is invalid
Interrupt is invalid
PxICIE = 0
Interrupt
ICWKPx = 0,
Next
+
Wake-up is invalid
Wake-up is invalid
Instruction Interrupt
PxICIE = 1
Vector
Pin change
Wake up
Wake up
ICWKPx = 1,
+
+
Interrupt is invalid
PxICIE = 0
Next Instruction
Next Instruction
Wake up Wake up Wake up Wake up
Interrupt
ICWKPx = 1,
+
+
+
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt
PxICIE = 1
Instruction Vector Instruction Vector
Vector
ADWK = 0,
Wake-up is invalid
Wake-up is invalid
Interrupt is invalid
ADIE = 0
Interrupt
ADWK = 0,
Next
+
Wake-up is invalid
Wake-up is invalid
Instruction Interrupt
ADIE = 1
AD
Vector
Conversion
ADWK = 1,
Wake up +
Wake up +
complete
Interrupt is invalid
Next Instruction
Next Instruction
ADIE = 0
Wake up Wake up Wake up Wake up
Interrupt
ADWK = 1,
+
+
+
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt
ADIE = 1
Instruction Vector Instruction Vector
Vector
SPIWK = 0,
Wake-up is invalid
Wake-up is invalid
Interrupt is invalid
SPIE = 0
Interrupt
SPIWK = 0,
Next
+
Wake-up is invalid
Wake-up is invalid
Instruction Interrupt
SPIE = 1
SPI
Vector
(Slave
SPIWK
=
1,
Wake up +
Wake up +
mode)
Interrupt is invalid
Next Instruction
Next Instruction
SPIE = 0
Wake up Wake up Wake up Wake up
Interrupt
SPIWK = 1,
+
+
+
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt
SPIE = 1
Instruction Vector Instruction Vector
Vector
68 •
Normal Mode
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Interrupt is invalid
Interrupt
Next
+
Instruction Interrupt
Vector
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Wake-up
Signal
Condition
Signal
Sleep Mode
DISI
ENI
Idle Mode
DISI
ENI
Green Mode
DISI
ENI
Normal Mode
DISI
ENI
2
I2 C
(Slave
mode)
I CWK=0
I2CRIE=0
Wake-up is invalid
Wake-up is invalid
I2CWK=0
I2CRIE=1
Wake-up is invalid
Wake-up is invalid
I2CWK=1
I2CRIE=0
I2CWK=1
I2CRIE=1
UART
Transmit
complete
Interrupt
UART
Receive
data
Buffer full
Interrupt
UART
Receive
Error
Interrupt
Low
Voltage
Detector
Interrupt
Interrupt
+
Next
+
Interrupt Instruction Interrupt
Vector
Vector
Interrupt is invalid.
Wake-up is invalid
Wake-up is invalid
UTIE = 1
URIE = 0
Wake-up is invalid
URIE = 1
UERRIE = 0
Wake-up is invalid
Wake-up is invalid
Wake-up is invalid
UERRIE = 1
Wake-up is invalid
Wake-up is invalid
Interrupt is invalid
Interrupt
Interrupt
Next
+
Next
+
Instruction Interrupt Instruction Interrupt
Vector
Vector
Interrupt is invalid
Wake-up is invalid
Interrupt is invalid.
Interrupt
Interrupt
Next
+
Next
+
Instruction Interrupt Instruction Interrupt
Vector
Vector
Interrupt is invalid
Wake-up is invalid
LVDWK = 0,
LVDIE = 1
Next
Instruction
Interrupt is invalid
Wake up
Wake up
+
+
Interrupt is invalid
Interrupt is invalid
Next Instruction
Next Instruction
Wake up Wake up Wake up Wake up
Interrupt
Interrupt
+
+
+
+
Next
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt Instruction Interrupt
Instruction Vector Instruction Vector
Vector
Vector
UTIE = 0
LVDWK = 0,
LVDIE = 0
Interrupt is invalid
Interrupt is invalid
Interrupt
Interrupt
Next
+
Next
+
Instruction Interrupt Instruction Interrupt
Vector
Vector
Interrupt is invalid
Interrupt is invalid
Interrupt
Interrupt
Next
+
Next
+
Instruction Interrupt Instruction Interrupt
Vector
Vector
Wake up
Wake up
+
+
Interrupt is invalid
Interrupt is invalid
Next Instruction
Next Instruction
Wake up Wake up Wake up Wake up
Interrupt
Interrupt
LVDWK = 1,
+
+
+
+
Next
+
Next
+
Next
Interrupt
Next
Interrupt Instruction Interrupt Instruction Interrupt
LVDIE = 1
Instruction Vector Instruction Vector
Vector
Vector
LVDWK = 1,
LVDIE = 0
Low
Voltage
Reset
Wake up + Reset
Wake up + Reset
Reset
Reset
WDT
Timeout
Wake up + Reset
Wake up + Reset
Reset
Reset
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 69
EM78P528N
8-Bit Microprocessor with OTP ROM
6.4.2 Status of RST, T, and P of the Status Register
A reset condition is initiated by the following events:
1. Power-on condition,
2. High-low-high pulse on /RESET pin
3. Watchdog timer time-out
4. When LVR occurs
The values of T and P, listed in Table 4 are used to check how the processor wakes up.
Table 4 shows the events that may affect the status of T and P.
Table 4 Values of RST, T and P after reset
Reset Type
Power on
/RESET during Operating mode
/RESET wake-up during Sleep mode
WDT during Operating mode
WDT wake-up during Sleep mode
Wake-up on pin change during Sleep mode
T
P
1
1
*P
*P
1
0
0
*P
0
0
1
0
*P: Previous status before reset
Table 5 Status of T and P Being Affected by Events
Event
T
P
Power on
1
1
WDTC instruction
1
1
WDT time-out
0
*P
SLEP instruction
1
0
Wake-up on pin change during Sleep mode
1
0
*P: Previous value before reset
VDD
D
Oscillator
Q
CLK
CLK
CLR
Power-On Reset
Low Voltage Reset
Setup time
WDTE
WDT
WDT Timeout
Reset
/RESET
Figure 6-8 Block Diagram of Controller Reset
70 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Table 3 Summary of Register Initial Values after Reset
Legend: U: Unknown or don’t care
P: Previous value before reset
C: Same with Code option
Address Bank Name
Bank 0/1
0x00
R0
IAR
Bank 0/1
0x01
R1
BSR
Bank 0/1
0x02
R2
PCL
Bank 0/1
0x03
R3
SR
Bank 0/1
0x04
R4
RSR
Bank 0
0X05
R5
Port 5
Reset Type
t: Check Table 4
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
-
-
-
-
-
-
-
-
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
-
SBS0
-
-
GBS1
GBS0
Power-on
U
U
U
0
U
U
0
0
/RESET and WDT
U
U
U
0
U
U
0
0
Wake-up from
Sleep/Idle
U
U
U
P
U
U
P
P
Bit Name
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
INT
-
-
T
P
Z
DC
C
Power-on
0
U
U
1
1
U
U
U
/RESET and WDT
0
U
U
t
t
P
P
P
Wake-up from
Sleep/Idle
P
U
U
t
t
P
P
P
Bit Name
RSR7
RSR6
RSR5
RSR4
RSR3
RSR2
RSR1
RSR0
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
P57
P56
P55
P54
P53
P52
P51
P50
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 71
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0x06
R6
Port 6
Bank 0
0x07
R7
Port 7
Bank 0
0x08
R8
Port 8
Bank 0
0x09
R9
Port 9
Bank 0
0x0A
RA
Port A
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
P67
P66
P65
P64
P63
P62
P61
P60
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
P77
P76
P75
P74
P73
P72
-
-
Power-on
0
0
0
0
0
0
U
U
/RESET and WDT
0
0
0
0
0
0
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
P
U
U
Bit Name
P87
P86
P85
P84
P83
P82
P81
P80
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
P97
P96
P95
P94
P93
P92
P91
P90
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Power-on
U
0
0
0
0
0
0
0
/RESET and WDT
U
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
P
P
P
P
P
P
P
IOC55
IOC54
IOC51
IOC50
Bit Name
Bank 0
0X0B
RB
IOCR5
0x0C
RC
IOCR6
72 •
IOC53 IOC52
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
IOC65
IOC64
IOC63
IOC62
IOC61
IOC60
Bit Name
Bank 0
IOC57 IOC56
IOC67 IOC66
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X0D
RD
IOCR7
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
IOC77
IOC76
IOC75
IOC74
IOC73
IOC72
-
-
Power-on
1
1
1
1
1
1
U
U
/RESET and WDT
1
1
1
1
1
1
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
P
U
U
CPUS
IDLE
-
-
-
-
RCM1
RCM0
U
U
C
C
Bit Name
Bank 0
0x0E
RE
OMCR
Power-on
1
1
U
U
/RESET and WDT
1
1
U
U
U
U
C
C
Wake-up from
Sleep/Idle
P
P
U
U
U
U
P
P
EIES0
-
-
Bit Name
Bank 0
0x0F
RF
EIESCR
Bank 0
0x10
R10
WUCR1
Bank 0
0x11
R11
WUCR2
Power-on
1
1
1
1
1
1
U
U
/RESET and WDT
1
1
1
1
1
1
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
P
U
U
Bit Name
-
-
-
-
Power-on
U
U
0
0
0
0
U
U
/RESET and WDT
U
U
0
0
0
0
U
U
Wake-up from
Sleep/Idle
U
U
P
P
P
P
U
U
Bit Name
-
-
-
-
-
-
Power-on
U
U
U
U
0
0
U
U
/RESET and WDT
U
U
U
U
0
0
U
U
Wake-up from
Sleep/Idle
U
U
U
U
P
P
U
U
Bit Name
Bank 0
0x12
R12
WUCR3
Bank 0
0X14
R14
SFR1
EIES98 EIES76 EIES54 EIES32 EIES1
LVDWK ADWK INTWK1 INTWK0
ICWKP8 ICWKP7 ICWKP6 ICWKP5
SPIWK I2CWK
INTWK INTWK INTWK INTWK
98
76
54
32
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
LVDSF
ADSF
WTSF
TCSF
Power-on
U
U
0
0
0
0
0
0
/RESET and WDT
U
U
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
U
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EXSF1 EXSF0
• 73
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X15
R15
SFR2
Reset Type
Bit 7
Bit 6
Bit Name
-
-
Power-on
U
U
0
/RESET and WDT
U
U
Wake-up from
Sleep/Idle
U
U
Bit Name
Bank 0
0X17
R17
SFR4
Bank 0
R18
SFR5
Bank 0
0X1B
R1B
IMR1
Bank 0
0X1C
R1C
IMR2
0X1E
R1E
IMR4
Bank 0
0X1F
R1F
IMR5
74 •
Bit 3
Bit 2
Bit 1
Bit 0
UERRSF URSF
UTSF
TC3SF
0
0
0
0
0
0
0
0
0
0
0
P
P
P
P
P
P
TC2SF TC1SF
P8ICSF P7ICSF P6ICSF P5ICSF SPISF I2CSTPSF I2CRSF I2CTSF
U
U
U
U
0
0
0
0
/RESET and WDT
U
U
U
U
0
0
0
0
Wake-up from
Sleep/Idle
U
U
U
U
P
P
P
P
EXSF9 EXSF8
EXSF7
EXSF6 EXSF5
EXSF4
EXSF3 EXSF2
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
LVDIE
ADIE
EXIE1
EXIE0
WTIE
TCIE
Power-on
U
U
0
0
0
0
0
0
/RESET and WDT
U
U
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
U
P
P
P
P
P
P
Bit Name
-
-
UERRSF
URIE
UTIE
TC3IE
TC2IE
TC1IE
Power-on
U
U
0
0
0
0
0
0
/RESET and WDT
U
U
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
U
P
P
P
P
P
P
P6ICIE
P5ICIE
SPIIE
Bit Name
Bank 0
Bit 4
Power-on
Bit Name
0X18
Bit 5
P8ICIE P7ICIE
I2CSTPIE I2CRIE I2CTIE
Power-on
U
U
U
U
0
0
0
0
/RESET and WDT
U
U
U
U
0
0
0
0
Wake-up from
Sleep/Idle
U
U
U
U
P
P
P
P
Bit Name
EXIE9
EXIE8
EXIE7
EXIE6
EXIE5
EXIE4
EXIE3
EXIE2
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X21
R21
WDTCR
Bank 0
0X22
R22
TCCR
Bank 0
0X23
R23
TCCD
Bank 0
0X24
R24
TC1CR1
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit Name
WDTE
-
-
-
Power-on
0
U
U
U
0
0
0
0
/RESET and WDT
0
U
U
U
0
0
0
0
Wake-up from
Sleep/Idle
P
U
U
U
P
P
P
P
Bit Name
-
TCCS
TS
TE
PSTE
TPSR2
Power-on
U
0
0
0
0
0
0
0
/RESET and WDT
U
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
P
P
P
P
P
P
P
Bit Name
TCC7
TCC6
TCC5
TCC4
TCC3
TCC2
TCC1
TCC0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
0X25
R25
TC1CR2
Bank 0
R26
TC1DA
0X27
R27
TC1DB
Bit 0
PSWE WPSR2 WPSR1 WPSR0
TPSR1 TPSR0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
TC1RC TC1SS1 TC1MOD TC1FF TC1OMS TC1IS1 TC1IS0
TC1M2 TC1M1 TC1M0 TC1SS0 TC1CK3 TC1CK2 TC1CK1 TC1CK0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
TC1DA7 TC1DA6 TC1DA5 TC1DA4 TC1DA3 TC1DA2 TC1DA1 TC1DA0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 0
Bit 1
TC1S
Bit Name
0X26
Bit 2
Bit Name
Bit Name
Bank 0
Bit 3
TC1DB7 TC1DB6 TC1DB5 TC1DB4 TC1DB3 TC1DB2 TC1DB1 TC1DB0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 75
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X28
R28
TC2CR1
Reset Type
Bit Name
TC2S
Power-on
0
0X29
R29
TC2CR2
Bank 0
R2A
TC2DA
0X2B
R2B
TC2DB
Bank 0
0X2C
R2C
TC3CR1
0X2D
R2D
TC3CR2
Bank 0
R2E
TC3DA
76 •
Bit 3
Bit 2
Bit 1
Bit 0
TC2FF TC2OMS TC2IS1 TC2IS0
0
U
0
0
0
0
0
0
0
0
P
P
P
P
0
Wake-up from
Sleep/Idle
P
P
P
U
TC2M2 TC2M1 TC2M0 TC2SS0 TC2CK3 TC2CK2 TC2CK1 TC2CK0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
TC2DA7 TC2DA6 TC2DA5 TC2DA4 TC2DA3 TC2DA2 TC2DA1 TC2DA0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
TC2DB7 TC2DB6 TC2DB5 TC2DB4 TC2DB3 TC2DB2 TC2DB1 TC2DB0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
TC3S
Power-on
0
TC3RC TC3SS1
0
-
TC3FF TC3OMS TC3IS1 TC3IS0
0
U
0
0
0
0
0
0
0
0
P
P
P
P
/RESET and WDT
0
0
0
U
Wake-up from
Sleep/Idle
P
P
P
U
TC3M2 TC3M1 TC3M0 TC3SS0 TC3CK3 TC3CK2 TC3CK1 TC3CK0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
0X2E
0
-
0
Bit Name
Bank 0
TC2RC TC2SS1
Bit 4
0
Bit Name
Bank 0
Bit 5
/RESET and WDT
Bit Name
0X2A
Bit 6
U
Bit Name
Bank 0
Bit 7
TC3DA7 TC3DA6 TC3DA5 TC3DA4 TC3DA3 TC3DA2 TC3DA1 TC3DA0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Reset Type
Bit Name
Bank 0
0X2F
R2F
TC3DB
Bank 0
0X30
R30
I2CCR1
Bank 0
0X31
R31
I2CCR2
Bank 0
0X32
R32
I2CSA
Bank 0
0X33
R33
I2CDB
Bank 0
0X34
R34
I2CDAL
Bank 0
0X35
R35
I2CDAH
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TC3DB7 TC3DB6 TC3DB5 TC3DB4 TC3DB3 TC3DB2 TC3DB1 TC3DB0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Strobe/
Pend
IMS
ISS
STOP
SAR_
EMPTY
ACK
FULL
EMPTY
Power-on
0
0
0
0
1
0
0
1
/RESET and WDT
0
0
0
0
1
0
0
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
I2CBF
GCEN
-
BBF
I2CTS1
I2CTS0
-
I2CEN
Power-on
0
0
U
0
0
0
U
0
/RESET and WDT
0
0
U
0
0
0
U
0
Wake-up from
Sleep/Idle
P
P
U
P
P
P
U
P
Bit Name
SA6
SA5
SA4
SA3
SA2
SA1
SA0
IRW
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
-
-
-
-
DA9
DA8
Power-on
U
U
U
U
U
U
1
1
/RESET and WDT
U
U
U
U
U
U
1
1
Wake-up from
Sleep/Idle
U
U
U
U
U
U
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 77
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X36
R36
SPICR
Bank 0
0X37
R37
SPIS
Bank 0
0X38
R38
SPIR
Bank 0
0X39
R39
SPIW
Bank 0
0X3E
R3E
ADCR1
Bank 0
0X3F
R3F
ADCR2
Bank 0
0X40
R40
ADISR
78 •
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
CES
SPIE
SRO
SSE
SDOC
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
DORD
TD1
TD0
-
OD3
OD4
-
RBF
Power-on
0
0
0
U
0
0
U
0
/RESET and WDT
0
0
0
U
0
0
U
0
Wake-up from
Sleep/Idle
P
P
P
U
P
P
U
P
Bit Name
SRB7
SRB6
SRB5
SRB4
SRB3
SRB2
SRB1
SRB0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
SWB7
SWB6
SWB5
SWB4
SWB3
SWB2
SWB1
SWB0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
CKR2
CKR1
CKR0
ADRUN
ADP
ADOM
SHS1
SHS0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
ADIM
ADCMS
VPIS1
VPIS0
VREFP
-
Power-on
U
U
0
0
0
0
0
U
/RESET and WDT
U
U
0
0
0
0
0
U
Wake-up from
Sleep/Idle
U
U
P
P
P
P
P
U
Bit Name
-
-
-
ADIS4
ADIS3
ADIS2
ADIS1
ADIS0
Power-on
U
U
U
0
0
0
0
0
/RESET and WDT
U
U
U
0
0
0
0
0
Wake-up from
Sleep/Idle
U
U
U
P
P
P
P
P
SBRS2 SBRS1 SBRS0
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X41
R41
ADER1
Bank 0
0X42
R42
ADER2
Bank 0
0X43
R43
ADDL
Bank 0
0X44
R44
ADDH
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
ADE7
ADE6
ADE5
ADE4
ADE3
ADE2
ADE1
ADE0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
ADE14
ADE13
ADE12
ADE11
ADE10
ADE9
ADE8
Power-on
U
0
0
0
0
0
0
0
/RESET and WDT
U
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
U
P
P
P
P
P
P
P
Bit Name
ADD7
ADD6
ADD5
ADD4
ADD3
ADD2
ADD1
ADD0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
U
U
U
U
U
U
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
ADD15
ADD14
ADD13
ADD12
ADD11
ADD10
ADD9
ADD8
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
U
U
U
U
U
U
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 0
0X45
R45
ADCVL
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 0
0X46
R46
ADCVH
0X48
R48
LCDCR1
ADCV15 ADCV14 ADCV13 ADCV12 ADCV11 ADCV10 ADCV9 ADCV8
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
-
BS
DS1
DS0
LCDF1
LCDF0
Bit Name
Bank 0
ADCV7 ADCV6 ADCV5 ADCV4 ADCV3 ADCV2 ADCV1 ADCV0
LCDEN LCDTYPE
Power-on
0
0
U
0
0
0
0
0
/RESET and WDT
0
0
U
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
U
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 79
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 0
0X49
R49
LCDCR2
Bank 0
0X4A
R4A
LCDCR3
Bank 0
0X4B
R4B
LCDADDR
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
-
RBS1
RBS0
DYMEN
-
-
-
-
Power-on
U
0
0
0
U
U
0
0
/RESET and WDT
U
0
0
0
U
U
0
0
Wake-up from
Sleep/Idle
U
P
P
P
U
U
P
P
Bit Name
-
-
-
-
-
Power-on
U
U
U
U
U
0
0
0
/RESET and WDT
U
U
U
U
U
0
0
0
Wake-up from
Sleep/Idle
U
U
U
U
U
P
P
P
Bit Name
-
-
-
LCDA4
LCDA3
LCDA2
Power-on
U
U
U
0
0
0
0
0
/RESET and WDT
U
U
U
0
0
0
0
0
Wake-Up from
Sleep/Idle
U
U
U
P
P
P
P
P
Bit Name
Bank 0
0X4C
R4C
LCDCDB
Bank 0
0X4D
R4D
LCDSCR0
Bank 0
0X4E
R4E
LCDSCR1
Bank 0
0X4F
R47
LCDSCR2
80 •
LCDCC2 LCDCC1 LCDCC0
LCDA1 LCDA0
LCDD7 LCDD6 LCDD5 LCDD4 LCDD3 LCDD2 LCDD1 LCDD0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
Power-on
U
/RESET and WDT
U
0
Wake-up from
Sleep/Idle
U
Bit Name
LCDSM2 LCDSM1 LCDSM0
-
LCDCM2 LCDCM1 LCDCM0
0
U
0
0
0
0
0
U
0
0
0
P
P
P
U
P
P
P
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
0
0
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 1
0X05
R5
IOCR8
Bank 1
0X06
R6
IOCR9
Bank 1
0X07
R7
IOCRA
Bank 1
0X08
R8
P5PHCR
Bank 1
0X09
R9
P6PHCR
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
IOC87
IOC86
IOC85
IOC84
IOC83
IOC82
IOC81
IOC80
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
IOC97
IOC96
IOC95
IOC94
IOC93
IOC92
IOC91
IOC90
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
IOCA6
IOCA5
IOCA4
IOCA3
IOCA2
IOCA1
IOCA0
Power-on
U
1
1
1
1
1
1
1
/RESET and WDT
U
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
U
P
P
P
P
P
P
P
Bit Name
PH57
PH56
PH55
PH54
PH53
PH52
PH51
PH50
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
PH67
PH66
PH65
PH64
PH63
PH62
PH61
PH60
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 1
0X0A
RA
P789APHCR
Bank 1
0X0B
RB
P5PLCR
PAHPH PALPH P9HPH P9LPH P8HPH P8LPH P7HPH P7LPH
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
PL57
PL56
PL55
PL54
PL53
PL52
PL51
PL50
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 81
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 1
0X0C
RC
P6PLCR
Bank 1
0X0D
RD
P789APLCR
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
PL67
PL66
PL65
PL64
PL63
PL62
PL61
PL60
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
PAHPL
PALPL
P9HPL
P9LPL
P8HPL
P8LPL
P7HPL
P7LPL
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 1
0X0E
RE
P5HDSCR
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 1
0X0F
RF
P6HDSCR
0X10
R10
P789AHDSCR
Bank 1
0X11
R11
P5ODCR
Bank 1
0X12
R2
P6ODCR
82 •
HDS67 HDS66 HDS65 HDS64 HDS63 HDS62 HDS61 HDS60
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
Bank 1
HDS57 HDS56 HDS55 HDS54 HDS53 HDS52 HDS51 HDS50
PAHHDS PALHDS P9HHDS P9LHDS P8HHDS P8LHDS P7HHDS P7LHDS
Power-on
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
OD57
OD56
OD55
OD54
OD53
OD52
OD51
OD50
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
OD67
OD66
OD65
OD64
OD63
OD62
OD61
OD60
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Reset Type
Bit Name
Bank 1
0X13
Power-on
R13
/RESET and WDT
P789AODCR Wake-up from
Sleep/Idle
Bit Name
Bank 1
0X33
R33
URCR
Bit 2
Bit 1
Bit 0
PAHOD PALOD P9HOD P9LOD P8HOD P8LOD P7HOD P7LOD
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
P
P
P
P
P
P
P
P
UTBE
TXE
UINVEN UMODE1 UMODE0 BRATE2 BRATE1 BRATE0
0
0
0
0
0
0
1
0
/RESET and WDT
0
0
0
0
0
0
1
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
URTD8
EVEN
PRE
URBF
RXE
PRERR OVERR FMERR
0
0
0
0
0
0
0
/RESET and WDT
P
0
0
0
0
0
0
0
URS
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
R35
Bank 1
R36
URRDL
Bank 1
R37
URRDH
URTD7 URTD6 URTD5 URTD4 URTD3 URTD2 URTD1 URTD0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
URRD7 URRD6 URRD5 URRD4 URRD3 URRD2 URRD1 URRD0
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
URRD8
-
-
-
-
-
-
-
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
U
U
U
U
U
U
U
Wake-up from
Sleep/Idle
P
U
U
U
U
U
U
U
-
-
-
-
-
Bit Name
WTE
Power-on
0
0
0
U
U
U
U
U
R40
/RESET and WDT
0
0
0
U
U
U
U
U
WCR
Wake-up from
Sleep/Idle
P
P
P
U
U
U
U
U
Bank 1
0X40
Bit 3
U
URTD
0X37
Bit 4
Power-on
Bank 1
0X36
Bit 5
Power-on
Bit Name
0X35
Bit 6
R34
Bank 1
0X34
Bit 7
WTSSB1 WTSSB0
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 83
EM78P528N
8-Bit Microprocessor with OTP ROM
(Continuation)
Address Bank Name
Bank 1
0X45
R45
TBPTL
Bank 1
0X46
R46
TBPTH
Bank 1
0X47
R47
STKMON
Bank 1
0X48
R48
PCH
Bank 1
0X49
R49
LVDCR
0X50
~
0X7F
0X80
~
0XFF
84 •
Bank 0
R50~R7F
Bank 0~3
R80~RFF
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
TB7
TB6
TB5
TB4
TB3
TB2
TB1
TB0
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
HLB
GP1
GP0
TB12
TB11
TB10
TB9
TB8
Power-on
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
STOV
-
-
-
STL3
STL2
STL1
STL0
Power-on
0
U
U
U
0
0
0
0
/RESET and WDT
0
U
U
U
0
0
0
0
Wake-up from
Sleep/Idle
P
U
U
U
P
P
P
P
Bit Name
-
-
-
PC12
PC11
PC10
PC9
PC8
Power-on
U
U
U
0
0
0
0
0
/RESET and WDT
U
U
U
0
0
0
0
0
Wake-up from
Sleep/Idle
U
U
U
P
P
P
P
P
Bit Name
LVDEN
LVDS2
LVDS1
LVDS0
LVDB
-
-
-
Power-on
0
0
0
0
1
U
U
U
/RESET and WDT
0
0
0
0
1
U
U
U
Wake-up from
Sleep/Idle
P
P
P
P
P
U
U
U
Bit Name
-
-
-
-
-
-
-
-
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Bit Name
-
-
-
-
-
-
-
-
Power-on
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-up from
Sleep/Idle
P
P
P
P
P
P
P
P
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.5 Interrupt
The EM78P528N has 25 interrupts (11 external, 14 internal) as listed below:
Interrupt Source
Enable Condition
Int. Flag
Int. Vector
Priority
Internal/External
Reset
-
-
0
High 0
External
INT
ENI + EXIE=1
EXSF
2
1
External
Pin change
ENI +ICIE=1
ICSF
4
2
Internal
TCC
ENI + TCIE=1
TCSF
6
3
Internal
LVD
ENI+LVDEN &
LVDIE=1
LVDSF
8
4
Internal
SPI
ENI + SPIIE=1
SPISF
C
5
Internal
AD
ENI + ADIE=1
ADSF
10
6
Internal
TC1(TCXDA)
ENI + TC1IE=1
TC1SF
12
7
Internal
I2C Transmit
ENI+ I2CTIE
I2CTSF
1A
8
Internal
I2C Receive
ENI+ I2CRIE
I2CRSF
1C
9
Internal
I CSTOP
ENI+ I CSTPIE
I CSTPSF
1E
10
Internal
TC2(TCXDA)
ENI + TC2IE=1
TC2SF
22
11
2
2
2
Internal
TC3(TCXDA)
ENI + TC3IE=1
TC3SF
28
12
Internal
UART Receive error
ENI+UERRIE=1
UERRSF
2E
13
Internal
UART Receive
ENI + URIE=1
URSF
30
14
Internal
UART Transmit
ENI + UTIE=1
UTSF
32
15
Internal
Watch timer
ENI+WTIE=1
WTSF
38
16
Bank 0 R14~R18 are the interrupt status registers that record the interrupt requests in
relative flags/bits. Bank 0 R1B~R1F is the Interrupt Mask register. The global interrupt
is enabled by the ENI instruction and is disabled by the DISI instruction. When one of
the enabled interrupts occurs, the next instruction will be fetched from their individual
address. The interrupt flag bit must be cleared by instructions before leaving the
interrupt service routine and before interrupts are enabled to avoid recursive interrupts.
The flag (except ICSF bit delete) in the Interrupt Status Register is set regardless of the
status of its mask bit or the execution of ENI. The RETI instruction ends the interrupt
routine and enables the global interrupt (the execution of ENI).
External interrupt is equipped with digital noise rejection circuit (input pulse of less than
4 system clock time is eliminated as noise), but in Low XTAL oscillator (LXT)
mode, the noise rejection circuit is disabled. When an interrupt (Falling edge) is
generated by the External interrupt (when enabled), the next instruction will be fetched
from Address 0X02H.
Before the interrupt subroutine is executed, the contents of ACC, R3 (Bit 0~Bit 4) and
R4 registers are saved by hardware. If another interrupt occurs, the ACC, R3 (Bit 0~Bit
4) and R4 registers will be replaced by the new interrupt. After the interrupt service
routine is finished, ACC, R3 (bit0~bit4) and R4 are restored.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 85
EM78P528N
8-Bit Microprocessor with OTP ROM
VDD
D
/IRQn
PR Q
IRQn
.
.
IRQm
CLK
CL
Q
RFRD
INT
ISR
ENI / DISI
Q PR
Q
IOD
D
CLK
CL
IOCFWR
IMR
/RESET
IOCFRD
RFWR
Figure 6-9a Interrupt Input Circuit
Interrupt
sources
ENI/DISI
ACC
Interrupt
occurs
R1
R3 (bits 0~4)
R4
STACKACC
STACKR1
RETI
STACKR3
STACKR4
Figure 6-9b Interrupt Backup Diagram
86 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.6 A/D Converter
R_BANK Address
Name
Bank 0
0x3E
ADCR1
Bank 0
0x3F
ADCR2
Bank 0
0x40
ADISR
Bank 0
Bank 0
Bank 0
0x41
0x42
0x43
ADER1
ADER2
ADDL
Bank 0
0x44
ADDH
Bank 0
0x45
ADCVL
Bank 0
0x46
ADCVH
Bank 0
0x10
WUCR2
Bank 0
0x15
SFR1
Bank 0
0x1B
IMR1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CKR2
CKR1
CKR0
ADRUN
ADP
ADOM
SHS1
SHS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
-
ADIM
ADCMS
VPIS1
VPIS0
VREFP
-
-
-
R/W
R/W
R/W
R/W
R/W
-
-
-
-
ADIS4
ADIS3
ADIS2
ADIS1
ADIS0
-
-
-
R/W
R/W
R/W
R/W
R/W
ADE7
ADE6
ADE5
ADE4
ADE3
ADE2
ADE1
ADE0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
ADE14
ADE13
ADE12
ADE11
ADE10
ADE9
ADE8
-
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADD7
ADD6
ADD5
ADD4
ADD3
ADD2
ADD1
ADD0
R
R
R
R
R
R
R
R
ADD15
ADD14
ADD13
ADD12
ADD11
ADD10
ADD9
ADD8
R
R
R
R
R
R
R
R
ADCV7
ADCV6
ADCV5
ADCV4
ADCV3
ADCV2
ADCV1
ADCV0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADCV15 ADCV14 ADCV13 ADCV12 ADCV11 ADCV10 ADCV9
R/W
R/W
R/W
-
-
-
ADWK
-
-
-
-
-
-
-
R/W
-
-
-
-
-
-
-
ADSF
-
-
-
-
-
-
-
R/W
-
-
-
-
-
-
-
ADIE
-
-
-
-
-
-
-
R/W
-
-
-
-
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
R/W
R/W
R/W
ADCV8
R/W
R/W
• 87
EM78P528N
8-Bit Microprocessor with OTP ROM
Figure 6-10 AD Converter Functional Block Diagram
This is a 12-bit successive approximation register analog-to-digital converter (SAR
ADC). There are two reference voltages for SAR ADC. The positive reference voltage
can select internal AVDD, internal voltage sources or external input pin by setting the
VREFP and VPIS1~0 bits in ADCR2. Connecting to external positive reference voltage
provides more accuracy than using internal AVDD.
6.6.1 ADC Data Register
When the AD conversion is completed, the result is loaded to the ADDH and ADDL.
And the ADSF is set if ADIE is enabled.
6.6.2 A/D Sampling Time
The accuracy, linearity, and speed of the successive approximation AD converter are
dependent on the properties of the ADC. The source impedance and the internal
sampling impedance directly affect the time required to charge the sample and hold
capacitor. The application program controls the length of the sample time to meet the
specified accuracy. The maximum recommended impedance for the analog source is
10kΩ at VDD = 5V. After the analog input channel is selected; this acquisition time
must be done before AD conversion can be started.
88 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.6.3 A/D Conversion Time
CKR2~0 select the conversion time (TAD). This allows the MCU to run at maximum
frequency without sacrificing the accuracy of AD conversion. The following tables
show the relationship between TAD and the maximum operating frequencies. The TAD
is 0.5 µs for 3V~5.5V and TAD is 2 µs for 2.5V~3V.
1. VDD = 3V ~ 5.5V (TAD is 0.5 µs)
System
Mode
Normal
Mode
Green Mode
Conversion Time
of One Word
Operating Clock
of ADC
(FAD = 1 / TAD)
Max. FMain
(VDD = 3V ~ 5.5V)
000
FMain / 16
16 MHz
21 μs
001
FMain / 8
16 MHz
10.5 μs
010
FMain / 4
8 MHz
10.5 μs
011
FMain / 2
4 MHz
10.5 μs
100
FMain / 64
16 MHz
84 μs
101
FMain / 32
16 MHz
42 μs
110
FMain / 1
2 MHz
10.5 μs
111
FSub
32.768 kHz
640 μs
xxx
FSub
32.768 kHz
640 μs
CKR[2:0]
(SHS1~0 = 10*)
* Conversion Time = Sample and Hold (SHS[1:0]=10, 8 * TAD) + 12 * Bit Conversion Time (12 *
TAD) + Delay Time between setting ADSTART bit and starting first TAD.
2. VDD = 2.5V ~ 3V (TAD is 2 µs)
System
Mode
Normal
Mode
Green Mode
Conversion Time
of One Word
Operating Clock
of ADC
(FAD = 1 / TAD)
Max. FMain
(VDD = 2.5V ~ 3V)
000
FMain / 16
8 MHz
42 μs
001
FMain / 8
4 MHz
42 μs
010
FMain / 4
2 MHz
42 μs
011
FMain / 2
1 MHz
42 μs
100
FMain / 64
16 MHz
84 μs
101
FMain / 32
16 MHz
42 μs
110
FMain / 1
0.5 MHz
42 μs
111
FSub
32.768 kHz
640 μs
xxx
FSub
32.768 kHz
640 μs
CKR[2:0]
(SHS[1:0] = 10*)
* Conversion Time = Sample and Hold (SHS[1:0]=10, 8 * TAD) + 12 * Bit Conversion Time (12 *
TAD) + Delay Time between setting ADSTART bit and starting first TAD (0.5 * TAD).
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 89
EM78P528N
8-Bit Microprocessor with OTP ROM
6.6.4 ADC Operation during Sleep Mode
In order to obtain a more accurate ADC value and reduce power consumption, the AD
conversion remains operational during sleep mode. As the SLEP instruction is
executed, all the MCU operations will stop except for the Oscillator, TCC, TC1~3 and
AD conversion.
The AD Conversion is considered completed as determined by:
1. The ADRUN bit of the Bank 0-R3E register is cleared to “0”.
2. The ADSF bit of the Bank 0-R15 register is set to “1”.
3. The ADWK bit of the Bank 0-R10 register is set to “1”. Wakes up from ADC
conversion (where it remains in operation during sleep mode).
4. Wake up and execution of the next instruction if the ADIE bit of the Bank 0-R1B is
enabled and the “DISI” instruction is executed.
5. Wake up and enters into Interrupt vector if the ADIE bit of Bank 0-R1B is enabled
and the “ENI” instruction is executed.
6. Enters into an Interrupt vector if the ADIE bit of the Bank 0-R1B is enabled and the
“ENI” instruction is executed.
The results are fed into the ADDL and ADDH registers when the conversion is
completed. If the ADWK is enabled, the device will wake up. Otherwise, the AD
conversion will be shut off, no matter what the status of the ADPD bit is.
6.6.5 Programming Process/Considerations
Follow these steps to obtain data from the ADC:
1. Write to the 15 bits (ADE14~0) on the Bank 0-R41~R42 (ADER1~2) register to
define the characteristics of P60~P61, P63~P67, P72~P73 and P90~P95 (digital
I/O, analog channels, or voltage reference pin)
2. Write to the Bank 0-R3E/ADCON register to configure the AD module:
a) Select the ADC input channel (ADIS4~0)
b) Define the AD conversion clock rate (CKR2~0)
c) Select the VREFS input source of the ADC
d) Set the ADPD bit to “1” to begin sampling
3. Set the ADWK bit, if the wake-up function is employed
4. Set the ADIE bit, if the interrupt function is employed
5. Write “ENI” instruction, if the interrupt function is employed
90 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6. Set the ADRUN bit to “1”
7. Write “SLEP” instruction or Polling.
8. Wait for either Wake-up or for the ADRUN bit to be cleared to “0” , and the Status
flag (ADSF) is set “1”, or ADC interrupt occurs.
9. Read the ADDL and ADDH conversion data registers. If the ADC input channel
changes at this time, the ADDL and ADDH values can be cleared to “0”.
10. Clear the status flag (ADSF).
11. For next conversion, go to Step 1 or Step 2 as required. At least two TAD are
required before the next acquisition starts. On the other hand, the timing setting
ADRUN = 1 must be later than the timing setting ADPD=1, and the difference
between the two timing is also two TAD.
NOTE
In order to obtain accurate values, it is necessary to avoid any data transition on I/O
pins during AD conversion
6.6.6 Programming Process for Detecting Internal VDD
VDD is detected within the operation, as described in the previous section the
difference is that before starting the ADC conversion, the first detection of VDD is
ready. Therefore in Detecting VDD:
It should be noted that before starting the AD conversion operation, the channel has to
be switched to 1/4VDD channel, the voltage divider is started, then AD can be
converted. Several points to note is that, precise conversion values can be added in
the VDD Pin capacitance, or more than twice the conversion, taking the average or the
last few strokes data in order to increase the reliability of the data.
Note that usually before VDD is detected, do not switch the channel to 1/4VDD
channel, as it has always been a DC current consumption, must be switched to another
channel analog multiplexer, and it will be shut out of the resistor divider, which requires
user attention.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 91
EM78P528N
8-Bit Microprocessor with OTP ROM
Figure 6-11 ADC and VDD Detection Block Diagram
92 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.6.7 Sample Demo Programs
A. Define System Control Registers
IAR
== 0X00
; Indirect addressing register
SR
== 0X03
; Status register
WUCR2 == 0x10
; Wakeup Control Register 2
SFR1 == 0x15
; Status Flag Register 1 of Interrupt
IMR1 == 0x1B
; Interrupt Mask Register 1
B. Define I/O Control Registers
PORT6 == 0X06
PORT7 == 0X07
PORT9 == 0X09
IOCR6 == 0x0C
; I/O Control Register of Port 6
IOCR7 == 0x0D
; I/O Control Register of Port 7
IOCR9 == 0x06
; I/O Control Register of Port 9(Bank 1)
C. ADC Control Register
ADCR1 == 0x3E
; 7
6
5
; CKR1 CKR1 CKR0
ADISR == 0x40
; ADC input select
ADDH == 0x44
; The contents are
ADDL == 0x45
; The contents are
4
3
2
1
0
ADRUN ADP
ADOM SHS1 SHS0
register
the results of ADC[11:8]
the results of ADC[7:0]
D. Define Bits in ADCR1
ADP
== 0x3
; Power Mode of ADC
ADRUN == 0x4
; ADC is executed as the bit is set
E. Program Starts
ORG 0
JMP INITIAL
; Initial address
;
ORG 0x12
; ADC Interrupt vector
JMP CLRRE
;
;(User program section)
;
CLRRE:
MOV A, SFR1
AND A, @0BXXX0XXXX ; To clear the ADSF bit, “X” by application
MOV SFR1, A
BS
ADCR1, ADRUN ; To start to execute the next AD conversion
; if necessary
RETI
INITIAL:
MOV A, @0B00000001 ; To define P73 as an analog input
MOV ADISR, A
MOV A, @0B00001000 ; To select P73 as an analog input channel, and
AD power on
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 93
EM78P528N
8-Bit Microprocessor with OTP ROM
MOV
ADCR1, A
; To define P73 as an input pin and set clock
rate at fosc/16
En_ADC:
MOV A, @0BXXXX1XXX ; To define P73 as an input pin, and the others
; are dependent on applications
MOV IOCR7, A
MOV
MOV
MOV
MOV
ENI
BS
A, @0BXXX1XXXX ;
;
WUCR2, A
A, @0BXXX1XXXX ;
;
IMR1, A
;
ADCON, ADRUN
Enable the ADWE wake-up function of ADC, “X”
by application
Enable the ADIE interrupt function of ADC,
“X” by application
Enable the interrupt function
; Start to run the ADC
; If the interrupt function is employed, the following three lines
may be ignored
;If Sleep:
SLEP
;
;(User program section)
;
or
;If Polling:
POLLING:
JBC ADCR1, ADRUN
JMP POLLING
; To check the ADRUN bit continuously;
; ADRUN bit will be reset as the AD conversion
; is completed
;
;(User program section)
94 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.7 Timer
There are three Timers in the EM78P528N. Timer 2 and Timer 3 are 8 bits up-counter.
Timer 1 can be as one 8-bit up-counter or cascaded with Timer 2 as one 16-bit
up-counter. If Timer 1 is used as 16-bit up-counter, the circuit resource of Timer 2
would be used. At this time, Timer 2 cannot be used.
R_BANK Address
Bank 0
0x24
Name
TC1CR1
Bank 0
0x25
TC1CR2
Bank 0
0x26
TC1DA
Bank 0
0x27
TC1DB
Bank 0
0x28
TC2CR1
Bank 0
0x29
TC2CR2
Bank 0
0x3A
TC2DA
Bank 0
0x3B
TC2DB
Bank 0
Bank 0
Bank 0
0x3C
0x3D
0x3E
TC3CR1
TC3CR2
TC3DA
Bank 0
0x3F
TC3DB
Bank 0
0x16
SFR2
Bank 0
0x1C
IMR2
Bit 7
Bit 6
TC1S
TC1RC
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
TC1SS1 TC1MOD TC1FF TC1OMS TC1IS1
R/W
R/W
R/W
TC1M2
TC1M1
TC1M0
R/W
R/W
R/W
R/W
R
R/W
R/W
Bit 0
TC1IS0
R/W
TC1SS0 TC1CK3 TC1CK2 TC1CK1 TC1CK0
R/W
R/W
R/W
R/W
R/W
TC1DA7 TC1DA6 TC1DA5 TC1DA4 TC1DA3 TC1DA2 TC1DA1 TC1DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TC1DB7 TC1DB6 TC1DB5 TC1DB4 TC1DB3 TC1DB2 TC1DB1 TC1DB0
R/W
R/W
R/W
R/W
TC2S
TC2RC
TC2SS1
-
R/W
R/W
R/W
-
TC2M2
TC2M1
TC2M0
-
R/W
R/W
R/W
-
R/W
R/W
R/W
TC2FF TC2OMS TC2IS1
R
R/W
R/W
R/W
TC2IS0
R/W
TC2CK3 TC2CK2 TC2CK1 TC2CK0
R/W
R/W
R/W
R/W
TC2DA7 TC2DA6 TC2DA5 TC2DA4 TC2DA3 TC2DA2 TC2DA1 TC2DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TC2DB7 TC2DB6 TC2DB5 TC2DB4 TC2DB3 TC2DB2 TC2DB1 TC2DB0
R/W
R/W
R/W
R/W
TC3S
TC3RC
TC3SS1
-
R/W
R/W
R/W
-
TC3M2
TC3M1
TC3M0
-
R/W
R/W
R/W
-
R/W
R/W
R/W
TC3FF TC3OMS TC3IS1
R
R/W
R/W
R/W
TC3IS0
R/W
TC3CK3 TC3CK2 TC3CK1 TC3CK0
R/W
R/W
R/W
R/W
TC3DA7 TC3DA6 TC3DA5 TC3DA4 TC3DA3 TC3DA2 TC3DA1 TC3DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TC3DB7 TC3DB6 TC3DB5 TC3DB4 TC3DB3 TC3DB2 TC3DB1 TC3DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
-
-
-
-
TC3DIF
TC2DIF
TC1DIF
-
-
-
-
-
F
F
F
-
-
-
-
-
TC3DIE
TC2DIE
TC1DIE
-
-
-
-
-
R/W
R/W
R/W
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 95
EM78P528N
8-Bit Microprocessor with OTP ROM
6.7.1 Timer/Counter Mode
TCxM2~0
TCxM2~0=timer/counter mode
TCx pin
M
fc/215
MUX
8-bit up counter
clear
fc/20
TC1S
TCxCK
Comparator
TCx
interrupt
4
TCxCR
TCxDB
TCxDA
Figure 6-12a Timer/Counter Mode Block Diagram
In Timer/Counter mode, counting up is performed using internal clock or TCx pin.
When the contents of the up-counter are matched with the TCxDA, then interrupt is
generated and the counter is cleared. Counting up resumes after the counter is
cleared. The current contents of the up-counter are loaded into TCxDB by setting
TCxRC to “1”.
Figure 6-12b Timer/Counter Mode Waveform
96 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.7.2 Window Mode
Figure 6-13a Window Mode Block Diagram
In Window mode, counting up is performed on a rising edge of the pulse that is logical
AND of an internal clock and the TCx pin (window pulse). When the contents of the
up-counter are matched with the TCxDA, then interrupt is generated and the counter is
cleared. The frequency (window pulse) must be slower than the selected internal
clock.
Figure 6-13b Window Mode Waveform
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 97
EM78P528N
8-Bit Microprocessor with OTP ROM
6.7.3 Capture Mode
Figure 6-14a Capture Mode Block Diagram
In Capture mode, the pulse width, period and duty of the TCx input pin are measured in
this mode, which can be used to decode the remote control signal. The counter is free
running by the internal clock. On a rising (falling) edge of TCx pin, the contents of the
counter is loaded into TCxDA, then the counter is cleared and interrupt is generated.
On a falling (rising) edge of TC1 pin, the contents of the counter are loaded into TCxDB.
At this time, the counter is still counting. Once the next rising edge of TCx pin is
triggered, the contents of the counter are loaded into TCxDA, the counter is cleared
and interrupt is generated again. If overflow before the edge is detected, the FFH is
loaded into TCxDA and an overflow interrupt is generated. During interrupt processing,
it can be determined whether or not there is an overflow by checking whether or not the
TCxDA value is FFH. After an interrupt (capture to TCxDA or overflow detection) is
generated, capture and overflow detection are halted until TCxDA is read out.
98 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Clock source
Up-counter
K-2
1
K-1 K 0
m-1
m m+1
n-1 n 0
1
2
3
FE FF 0
1
2
3
TCx pin input
TCxDA
K
TCxDB
TCx Interrupt
n
m
capture
FF (overflow)
FE
capture
overflow
Reading TCxDA
Figure 6-14b Capture Mode Waveform
6.7.4 Programmable Divider Output Mode and Pulse Width
Modulation Mode
Figure 6-15a PDO/PWM Mode Block Diagram
„
Programmable Divider Output (PDO)
In Programmable Divider Output (PDO) mode, counting up is performed using the
internal clock. The contents of TCxDA are compared with the contents of the upcounter. The F/F output is toggled and the counter is cleared each time a match is
found. The F/F output is inverted and output to PDO pin. This mode can generate 50%
duty pulse output. The PDO pin is initialized to “0” during reset. A TCx interrupt is
generated each time the PDO output is toggled.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 99
EM78P528N
8-Bit Microprocessor with OTP ROM
Figure 6-15b PDO Mode Waveform
„
Pulse Width Modulation (PWM)
In Pulse Width Modulation (PWM) Output mode, counting up is performed using the
internal clock with prescaler. The Duty of PWMx control by TCxDB, and the period of
PWMx control by TCxDA. The pulse at the PWMx pin is held to high level as long as
TCxS=1 or timerx matches TCxDA, while the pulse is held to low level as long as
Timerx matches TCxDB. Once TCxFF is set to 1, the signal of PWMx is inverted. A TCx
interrupt is generated and defined by TCxIS. On the other hand, the TCxDA and
TCxDB can be written anytime, but the data of TCxDA and TCxDB are latched only at
writing TCxDA0. Therefore, the new duty and new period of PWM appear at the PMW
pin at the last period–match.
Figure 6-15c PWM Mode Waveform
6.7.5 Buzzer Mode
The TCx pin outputs the clock after dividing the frequency.
100 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.8 UART (Universal Asynchronous Receiver/Transmitter)
Registers for UART Circuit
R_BAN Addr.
Name
Bank 0
0x16
SFR2
Bank 0
0x1C
IMR2
Bank 1
0X33
URCR
Bank 1
0X34
URS
Bank 1
0x35
URTD
Bank 1
0X36 URRDL
Bank 1
0X37 URRDH
Bit 7
-
Bit 6
-
Bit 5
UERRSF
Bit 4
URSF
Bit 3
UTSF
Bit 2
-
Bit 1
-
Bit 0
-
-
-
R/W
R/W
R/W
-
-
-
-
-
UERRIE
URIE
UTIE
-
-
-
-
-
R/W
R/W
R/W
-
-
-
UINVEN UMODE1 UMODE0 BRATE2 BRATE1 BRATE0 UTBE TXE
R/W
R/W
R/W
URTD8
EVEN
PRE
R/W
R/W
R/W
PRERR OVERR FMERR
R/W
R/W
URB
RXE
W
R/W
R/W
R/W
R/W
R/W
R
R/W
URTD7
URTD6
URTD5
URTD4
URTD3
URTD2
URT
URT
W
W
W
W
W
W
W
W
URRD7
URRD6
URRD5
URRD4
URRD3
URRD2
URR
URR
R
R
R
R
R
R
R
R
URRD8
-
-
-
-
-
-
-
R
-
-
-
-
-
-
-
Figure 6-16 UART Functional Block Diagram
In Universal Asynchronous Receiver Transmitter (UART), each transmitted or received
character is individually synchronized by framing it with a start bit and stop bit.
Full duplex data transfer is possible since the UART has independent transmit and
receive sections. Double buffering for both sections allows the UART to be
programmed for continuous data transfer.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 101
EM78P528N
8-Bit Microprocessor with OTP ROM
The figure below shows the general format of one character sent or received. The
communication channel is normally held in the marked state (high). Character
transmission or reception starts with a transition to the space state (low).
The first bit transmitted or received is the start bit (low). It is followed by the data bits, in
which the least significant bit (LSB) comes first. The data bits are followed by the parity
bit. If present, then the stop bit or bits (high) confirm the end of the frame.
In receiving, the UART synchronizes on a falling edge of the start bit. When two or
three “0” are detected during three samples, it is recognized as normal start bit and the
receiving operation is started.
Figure 6-17 Data Format in UART
6.8.1 UART Mode
There are three UART modes. Mode 1 (7 bits data) and Mode 2 (8 bits data) allow the
addition of a parity bit. The parity bit addition is not available in Mode 3. Figure 6-18a
below shows the data format in each mode.
Figure 6-18a UART Model
102 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.8.2 Transmitting
In transmitting serial data, the UART operates as follows:
1. Set the TXE bit of the URCR1 register to enable the UART transmission function.
2. Write data into the URTD register and the UTBE bit of the URCR register will be
cleared by hardware.
3. Then start transmitting.
4. Serially transmitted data are transmitted in the following order from the TX pin.
5. Start bit: one “0” bit is output.
6. Transmit data: 7, 8 or 9 bits data are output from the LSB to the MSB.
7. Parity bit: one parity bit (odd or even selectable) is output.
8. Stop bit: one “1” bit (stop bit) is output.
Mark state: output “1” continues until the start bit of the next transmitted data.
After transmitting the stop bit, the UART generates a UTSF interrupt (if enabled).
6.8.3 Receiving
In receiving, the UART operates as follows:
1. Set the RXE bit of the URS register to enable the UART receiving function. The
UART monitors the RX pin and synchronizes internally when it detects a start bit.
2. Receive data is shifted into the URRD register in the order from LSB to MSB.
3. The parity bit and the stop bit are received. After one character is received, the
URBF bit of the URS register will be set to “1”. This means UART interrupt will
occur.
4. The UART makes the following checks:
(a) Parity check: The number of “1” of the received data must match the even or
odd parity setting of the EVEN bit in the URS register.
(b) Frame check: The start bit must be “0” and the stop bit must be “1”.
(c) Overrun check: The URBF bit of the URS register must be cleared (that means
the URRD register should be read out) before the next received data is loaded
into the URRD register.
If any checks failed, the UERRSF interrupt will be generated (if enabled), and an
error flag is indicated in PRERR, OVERR or FMERR bit. The error flag should be
cleared by software, otherwise, UERRSF interrupt will occur when the next byte is
received.
5. Read received data from URRD register. And URBF bit will be set by hardware.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 103
EM78P528N
8-Bit Microprocessor with OTP ROM
6.8.4 Baud Rate Generator
The baud rate generator is comprised of a circuit that generates a clock pulse to
determine the transfer speed for transmission/reception in the UART.
The BRATE2~BRATE0 bits of the URC register can determine the desired baud rate.
6.8.5 UART Timing
1. Transmission Counter Timing:
2. Receiving Counter Timing:
Figure 6-18b UART Timing Diagrams
6.9 SPI (Serial Peripheral Interface)
R_BANK Address Name
104 •
Bank 0
0X36
SPICR
Bank 0
0X37
SPIS
Bank 0
0X38
SPIR
Bank 0
0X39
SPIW
Bank 0
0X18
SFR4
Bank 0
0X1E
IMR4
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
CES
SPIE
SRO
SSE
SDOC SBRS2 SBRS1 SBRS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DORD
TD1
TD0
-
OD3
OD4
-
RBF
R/W
R/W
R/W
-
R/W
R/W
-
R
SRB2
SRB1
SRB0
R
R
R
SRB7
R
SWB7
SRB6 SRB5 SRB4 SRB3
R
R
R
R
Bit 2
Bit 1
Bit 0
SWB6 SWB5 SWB4 SWB3 SWB2 SWB1 SWB0
R/W
-
R/W
-
R/W
-
R/W
-
R/W
SPISF
R/W
-
R/W
-
R/W
-
-
-
-
-
R/W
SPIIE
-
-
-
-
-
-
-
R/W
-
-
-
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.9.1 Overview and Feature
Overview:
Figures 6-19 and 6-20 show how the EM78P528N communicates with other devices
through SPI module. If EM78P528N is a Master controller, it sends clock through the
SCK pin. A couple of 8-bit data are transmitted and received at the same time.
However, if the EM78P528N is defined as a Slave, its SCK pin could be programmed
as an input pin. Data will continue to be shifted based on both the clock rate and the
selected edge. User can also set SPIS Bit 7 (DORD) to determine the SPI transmission
order, SPICR Bit 3 (SDOC) to control SDO pin after serial data output status and SPIS
Bit 6 (TD1), Bit 5 (TD0) determines the SDO status output delay times.
Features:
1.
Operation in either Master mode or Slave mode
2.
Three-wire or four-wire full duplex synchronous communication
3.
Programmable baud rates of communication
4.
Programming clock polarity, (Bank 0 R36 Bit 7)
5.
Interrupt flag available for the read buffer full
6.
SPI transmission order
7.
After serial data output SDO status select
8.
SDO status output delay times
9.
SPI handshake pin
10.
Up to 4 MHz (maximum) bit frequency
Figure 6-19 SPI Master/Slave Communication
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 105
EM78P528N
8-Bit Microprocessor with OTP ROM
SDI
SDO
SCK
/SS
Vdd
Master
Slave Device 1
P60
P61
P62
P63
Slave Device 2
Slave Device 4
Slave Device 3
Figure 6-20 SPI Configuration of Single-Master and Multi-Slave
6.9.2 SPI Functional Description
Read
RBF
SPIIF
Write
SPIR
SSE
reg
SPIW reg
Set to 1
Buffer Full Detector
SPIS
shift right
reg
SI
SPIC reg
SO
Edge
Select
SBR0 ~SBR2
/SS
/ SS
Noise
Filter
SBR2~SBR0
Clock Select
Fosc
Prescaler
2, 4, 8, 16, 32
Edge
Select
SCK
TMR2
CES
Figure 6-21 SPI Block Diagram
106 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
SPI
SI
SPI Read Register
(0X0D)
/ SS
SPI Write Register
(0X0E)
8-1
MUX
SPI mode select
Register
2 1 0
SPIC
SO
Shift Clock
SPI Shift
Buffer
FOSC
7 6 4 5 4
SPIC
SPIC
7~0
SPIW
3
0
ISR4
SPIS
7~0
SPIR
DATA Bus
Figure 6-22 Functional Block Diagram of SPI Transmission
Below are the functions of each block and explanations on how to carry out the SPI
communication with the signals depicted in Figures 6-21 and 6-22.
„
P84/SDA/SI/SEG4: Serial Data In
„
P85/SO/SEG5: Serial Data Out
„
P86/SCL/SCK/SEG6: Serial Clock
„
P87//SS/AD9/SEG8: /Slave Select (Option). This pin (/SS) may be required during
a Slave mode
„
RBF: Set by Buffer Full Detector
„
Buffer Full Detector: Set to 1 when an 8-bit shifting is completed.
„
SSE: Loads the data in SPIS register, and begin to shift
„
SPIS reg.: Shifting byte in and out. The MSB is shifted first. Both the SPIR and the
SPIW registers are shift at the same time. Once data are written, SPIS starts
transmission / reception. The data received will be moved to the SPIR register as
the shifting of the 8-bit data is completed. The RBF (Read Buffer Full) flag and the
SPISF (SPI Interrupt) flag are then set.
„
SPIR reg.: Read buffer. The buffer will be updated as the 8-bit shifting is
completed. The data must be read before the next reception is completed. The
RBF flag is cleared as the SPIR register reads.
„
SPIW reg.: Write buffer. The buffer will deny any attempts to write until the 8-bit
shifting is completed.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 107
EM78P528N
8-Bit Microprocessor with OTP ROM
The SSE bit will be kept in “1” if the communication is still undergoing. This flag must
be cleared as the shifting is completed. Users can determine if the next write attempt is
available.
„
SBRS2~SBRS0: Programming the clock frequency/rates and sources.
„
Clock Select: Selecting either the internal or the external clock as the shifting clock.
„
Edge Select: Selecting the appropriate clock edges by programming the CES bit
6.9.3 SPI Signal and Pin Description
The detailed functions of the four pins, SI, SO, SCK, and /SS are as follows:
P84/SDA/SI/SEG4:
„
Serial Data In
„
Receive sequentially, the Most Significant Bit (MSB) first, Least Significant Bit
(LSB) last,
„
Defined as high-impedance, if not selected
„
Program the same clock rate and clock edge to latch on both the Master and Slave
devices
„
The byte received will update the transmitted byte
„
The RBF will be set as the SPI operation is completed
„
Timing is shown in Figures 6-23 and 6-24.
P85/SO/SEG5:
108 •
„
Serial Data Out
„
Transmit sequentially; the Most Significant Bit (MSB) first, Least Significant Bit
(LSB) last
„
Program the same clock rate and clock edge to latch on both the Master and Slave
devices
„
The received byte will update the transmitted byte
„
The CES bit will be reset, as the SPI operation is completed
„
Timing is shown in Figures 6-23 and 6-24.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
P86/SCL/SCK/SEG6:
„
Serial Clock
„
Generated by a Master device
„
Synchronize the data communication on both the SI and SO pins
„
The CES is used to select the edge to communicate.
„
The SBR0~SBR2 is used to determine the baud rate of communication
„
The CES, SBR0, SBR1, and SBR2 bits have no effect in Slave mode
„
Timing is shown in Figures 6-23 and 6-24.
P87//SS/AD9/SEG8:
„
Slave Select; negative logic
„
Generated by a Master device to signify the Slave(s) to receive data
„
Goes low before the first cycle of SCK appears, and remains low until the last
(eighth) cycle is completed
„
Ignores the data on the SI and SO pins while /SS is high, because the SO is no
longer driven
„
Timing is shown in Figures 6-23 and 6-24.
6.9.4 SPI Mode Timing
SCK
(CES=0)
SCK
(CES=1)
SDO
(DORD=0)
SDI
(DORD=0)
MSB
MSB
6
5
6
4
5
3
4
2
3
1
2
LSB
1
LSB
Delay
Time
RBF
Figure 6-23 SPI Mode with /SS Disabled
The SCK edge is selected by programming bit CES. The waveform shown in Figure
6-23 is applicable regardless of whether the EM78P528N is in Master or Slave mode
with /SS disabled. However, the waveform in Figure 6-24 can only be implemented in
Slave mode with /SS enabled.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 109
EM78P528N
8-Bit Microprocessor with OTP ROM
Figure 6-24 SPI Mode with /SS Enabled
6.10 I2C Function
R_BANK Addr. Name
Bank 0
0x30 I2CCR1
Bit 7
Bit 6
Bit 5
Bit 4
Strobe/Pend
IMS
ISS
STOP SAR_EMPTY
R/W
R/W
R/W
2
Bank 0
0x31 I2CCR2
Bank 0
0x32
I2CSA
Bank 0
0x33
I2CDB
Bank 0
0x34 I2CDAL
Bank 0
0x35 I2CDAH
Bank 0
Bank 0
110 •
0x18
0x1E
SFR4
IMR4
Bit 3
R/W
Bit 2
Bit 1
ACK
FULL EMPTY
R
2
R
Bit 0
R
2
R
2
I CBF
GCEN
-
BBF
I CTS1
I CTS0
-
I CEN
R
R/W
-
R
R/W
R/W
-
R/W
SA6
SA5
SA4
SA3
SA2
SA1
SA0
IRW
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
-
-
-
-
-
DA9
DA8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
R/W
2
R/W
2
I CSTPIF I CRSF I CTSF
R/W
2
R/W
2
R/W
2
I CSTPIE I CRIE I CTIE
R/W
R/W
R/W
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
FULL
I2CRIF
Read
Write
I2CTIF
I2CDB reg
Buffer Full Detector
Control and
Status reg
SCL
I2CSA reg
SDA
MSb
LSb
Match Detect
Add Match
I2CDA reg
Start and Stop
bit Detect
Figure 6-25 I2C Block Diagram
The EM78P528N supports a bidirectional, 2-wire bus, 7/10-bit addressing and data
transmission protocol. A device that sends data onto the bus is defined as transmitter,
while a device receiving data is defined as a receiver. The bus has to be controlled by
a Master device which generates the Serial Clock (SCL), controls the bus access and
generates the Start and Stop conditions. Both Master and Slave can operate as
transmitter or receiver, but the Master device determines which mode is activated.
Both SDA and SCL are bidirectional lines, connected to a positive supply voltage via a
pull-up resistor. When the bus is free, both lines are HIGH. The output stages of
devices connected to the bus must have an open-drain or open-collector to perform the
wired-AND function. Data on the I2C-bus can be transferred at the rates of up to
100Kbit/s in Standard mode or up to 400Kbit/sec. in Fast mode.
The data on the SDA line must be stable during the HIGH period of the clock. The
HIGH or LOW state of the data line can only change when the clock signal on the SCL
line is LOW.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 111
EM78P528N
8-Bit Microprocessor with OTP ROM
The I2C Interrupt occurs as describe below:
Condition
Master/Slave Transmit Address
Transmit Data
Stop
Master-transmitter
transmits to
Slave-receiver
Master
Transmit interrupt
Transmit interrupt
Stop interrupt
Slave
Receive interrupt
Receive interrupt
Stop interrupt
Master receiver read
Slave-transmitter
Master
Transmit interrupt
Receive interrupt
Stop interrupt
Slave
Transmit interrupt
Transmit interrupt
Stop interrupt
Within the procedure of the I2C bus, there can be unique situations which are defined
as START (S) and STOP (P) conditions.
A High to Low transition on the SDA line while SCL is High is one such unique case.
This situation indicates a START condition.
A Low to High transition on the SDA line while SCL is High defines a STOP condition.
SCL
SDA
START
data line change
stable;
of data
data valid allowed
STOP
Figure 6-26 I2C Transfer Condition
„
7-Bit Slave Address
Master-transmitter transmits to Slave-receiver. The transfer direction is not changed.
Master reads Slave immediately after the first byte. At the moment of the first
acknowledgement, the Master-transmitter becomes a Master-receiver and the
Slave-receiver becomes a Slave-transmitter. This first acknowledgement is still
generated by the Slave. The STOP condition is generated by the Master, which has
previously sent a not-acknowledge (A). The difference between Master transmitter
with Master receiver is only in R//W bit. If the R//W bit is “0”, the Master device is the
Transmitter. Otherwise, the Master device is the Receiver. The Master-Transmitter is
illustrated in Figure 6-27a “Master-Transmitter transmits to Slave–receiver with 7-Bit
Slave Address”, and that of the Master-Receiver is shown in Figure 6-27b “MasterReceiver Reads Slave –Transmitter with 7-Bit Slave Address”.
112 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
8 Bits
S
8 Bits
Slave Address
R//W
7 Bits
'0'
Write
Master to Slave
Slave to Master
A
Data
8 Bits
A
Data
A//A
P
data transferred
(n byte + acknowledge)
A = acknowledge (SDA low)
/A = not acknowledge (SDA high)
S = Start
P = Stop
Figure 6-27a Master-Transmitter Transmits to Slave-Receiver with 7-Bit Slave Address
Figure 6-27b Master-Receiver Reads Slave-Transmitter with 7-Bit Slave Address
„
10-Bit Slave Address
In 10-Bit Slave address mode, using 10 bits for addressing exploits the reserved
combination 11110XX for the first seven bits of the first byte following a START (S) or
repeated START (Sr) condition. The first seven bits of the first byte are the
combination 11110XX of which the last two bits (XX) are the two most-significant bits of
the 10-bit address. If the R//W bit is “0”, the second byte after acknowledgement would
be the eight address bits of the10-bit Slave address. Otherwise, the second byte would
just only be the next transmitted data from a Slave to Master device. The first bytes
11110XX are transmitted using the Slave address register (I2CSA), and the second
bytes XXXXXXXX are transmitted using the data buffer (I2CDB).
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 113
EM78P528N
8-Bit Microprocessor with OTP ROM
The following explains the possible data transfer formats for 10-bit Slave address
mode:
„
Master-Transmitter Transmits to Slave-Receiver with a 10-bit Slave Address
When the Slave receives the first byte after START bit from Master, each Slave devices
will compare the seven bits of the first byte (11110XX) with their own address and the
8th bit, R//W. If the R//W bit is “0”, the Slave will return the Acknowledge (A1). It is
possible that more than one Slave devices will return the Acknowledge (A1). Then all
Slave devices will continue to compare the second address (XXXXXXXX). If a Slave
device finds a match, that particular Slave will be the only one to return an
Acknowledge (A2). The matching Slave device will remain addressed by the Master
until it receives a STOP condition or a repeated START condition followed by the
different Slave address.
Figure 6-28a Master-Transmitter Transmits to Slave-Receiver with a 10-bit Slave Address
„
Master-Receiver Reads Slave-Transmitter with a 10-bit Slave Address
Up to and including acknowledge Bit A2, the procedure is the same as that described
for Master-transmitter addressing a Slave receiver. After the acknowledge A2, a
repeated START condition (Sr) followed by seven bits Slave address (11110XX) but
the 8th bit R//W is “1”, the addressed Slave device will return the acknowledge A3. If
the repeated START (Sr) condition and the seven bits of first byte (11110XX) received
by Slave device, all the Slave device would compare with their own address and test
the 8th R//W. However, none of the Slave devices can return an acknowledgement
because R//W=1.
Figure 6-28b Master-Receiver Reads Slave-Transmitter with a 10-bit Slave Address
114 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
„
Master Transmits and Receives Data to and from the Same Slave Device with
10-Bit Addresses
The initial operation of this data transfer format is the same as explained in the above
paragraph on “Master-Transmitter Transmits to Slave-Receiver with a 10-bit Slave
Address.” Then the Master device starts to transmit the data to Slave device. When
the Slave device receives the Acknowledge or None-Acknowledge that is followed by
repeat START (Sr), the above operation under “Master-Receiver Read SlaveTransmitter with a 10-Bit Slave Address” is repeatedly performed.
Figure 6-28c Master Addresses a Slave with 10-Bit Addresses Transmits and Receives Data
with the Same Slave Device
„
Master Device Transmits Data to Two or More Slave Devices with 10 and
7 Bits Slave Address
For 10-bit address, the initial operation of this data transfer format is the same as
explained in the above paragraph on “Master-Transmitter Transmits to Slave-Receiver
with a 10-bit Slave Address,” which describes how to transmit data to Slave device.
After the Master device completes the initial transmittal, and wants to continue
transmitting data to another device, the Master needs to address each of the new Slave
devices by repeating the initial operation mentioned above. If the Master device wants
to transmit the data in 7-bit and 10-bit Slave address modes successively, this could be
done after the START or repeat START conditions as illustrated in the following figures.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 115
EM78P528N
8-Bit Microprocessor with OTP ROM
11110XX
S
0
Slave
Address
R//W
1st 7Bits
Write
Sr
A
Slave
Address
A
Data
Data
A
A//A
2nd 8Bits
11110XX
0
Slave
Address
R//W
1st 7Bits
Write
Slave
Address
A
A
Data
A
Data
A//A
P
2nd 8Bits
Figure 6-28d Master Transmitting to More than One Slave Devices with 10-Bit Slave Address
0
S
Slave
Address
R//W
7-Bits
Write
Sr
A
11110XX
0
Slave
Address
R//W
1st 7Bits
Write
Data
A
A
Slave
Address
Data
A
A//A
Data
A
Data
A//A
P
2nd 8Bits
Figure 6-28e Master Successively Transmitting to 7-Bit and 10-Bit Slave Address
116 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.10.1 Master Mode
In transmitting (receiving) serial data, the I2C operates as follows:
2
1. Set I2CTS1~0 and ISS bits to select I C transmit clock source.
2
2. Set I2CEN and IMS bits to enable I C Master function.
3. Write Slave address into the I2CSA register and IRW bit to select read or write.
4. Set strobe bit will start transmit and then Check I2CTSF (I2CTSF) bit.
5. Write 1st data into the I2CDB register, set strobe bit and Check I2CTSF (I2CRSF) bit.
6. Write 2nd data into the I2CDB register, set strobe bit, Stop bit and Check I2CTSF
(I2CRSF) bit.
6.10.2 Slave Mode
In receiving (transmitting) serial data, the I2C operates as follows:
2
1. Set I2CTS1~0, I2CCS and ISS bits to select I C transmit clock source.
2
2. Set I2CEN and IMS bits to enable I C Slave function.
3. Write device address into the I2CDA register.
4. Check I2CRSF (I2CTSF) bit, read I2CDB register (address) and then clear Pend bit.
5. Check I2CRSF (I2CTSF) bit, read I2CDB register (1st data) and then clear Pend bit.
6. Check I2CRSF (I2CTSF) bit, read I2CDB register (2nd data) and then clear Pend bit.
7. Check I2CSTPSF bit, end transmission.
6.11 Liquid Crystal Display Driver (LCD Driver)
The EM78P528N supports two types of LCD (R-type) that can drive up to 23 segments
and 8 commons, which drive a total of 8×23 dots. The LCD block is made up of LCD
driver, display RAM, segment output pins, common output pins and LCD operating
power supply pins. This circuit can work in normal mode, green mode and idle mode.
The LCD duty, bias, the number of segment, the number of common and frame
frequency are determined by the LCD controller register.
The basic structure contains a timing control, which uses the main system clock or
subsystem clock to generate the proper timing for different duty and display access.
The Bank 1 R4B register is a command register for LCD driver that include LCD
enable/disable, bias (1/2 and 1/3), duty (1/2, 1/3, 1/4) and LCD frame frequency
control. The register Bank 1 R4C is LCD RAM address control register. The register
Bank 1 R4D is LCD RAM data buffer. The control register is explained as follows.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 117
EM78P528N
8-Bit Microprocessor with OTP ROM
Control Register
R_BANK Address
Bank 0
Bank 0
Bank 0
Bank 0
Bank 0
0x48
0x49
0x4A
0x4B
0x4C
Name
Bit 7
LCDCR1
LCDCR2
LCDCR3
LCDADDR
LCDDB
Bank 0
0x4D
LCDCSCR
Bank 0
0x4E
LCDSCR1
Bank 0
0x4F
LCDSCR2
Bit 6
LCDEN LCDTYPE
Bit 5
-
Bit 4
Bit 3
Bit 2
BS
DS1
DS0
LCDF1
Bit 1
LCDF0
Bit 0
R/W
R/W
-
R/W
R/W
R/W
R/W
R/W
-
RBS1
RBS0
DYMEN
-
-
BF1
BF0
-
R/W
R/W
R/W
-
-
R/W
R/W
-
-
-
-
-
-
-
-
-
-
R/W
R/W
R/W
-
-
-
LCDA4
LCDA3
LCDA2
LCDA1
LCDA0
LCDCC2 LCDCC1 LCDCC0
-
-
-
R/W
R/W
R/W
R/W
R/W
LCDD7
LCDD6
LCDD5
LCDD4
LCDD3
LCDD2
LCDD1
LCDD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
LCDSM2 LCDSM1 LCDSM0
-
LCDCM2 LCDCM1 LCDCM0
-
R/W
R/W
R/W
-
R/W
R/W
R/W
SEG7
SEG6
EG5
SEG4
SEG3
SEG2
SEG1
SEG0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1 frame
VDD
COM 0
VLCD3
GND
VDD
VLCD3
COM 1
GND
VDD
SEG N
VLCD3
GND
VDD
VLCD3
GND
SEG N - COM0
ON
-VLCD3
-VDD
VDD
VLCD3
SEG N - COM1
GND
OFF
-VLCD3
-VDD
1/2 bias, 1/2 duty
A type
Figure 6-29a ½ bias, ½ duty A Type LCD Waveform
118 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
COM 0
VLCD3
GND
VDD
COM 1
VLCD3
GND
VDD
SEG N
VLCD3
GND
VDD
VLCD3
SEG N - COM0
GND
ON
-VLCD3
-VDD
VDD
VLCD3
SEG N - COM1
GND
OFF
-VLCD3
1/2 bias, 1/2 duty
B type
-VDD
Figure 6-29b ½ bias, ½ duty B Type LCD Waveform
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 119
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
COM 0
VLCD3
GND
VDD
COM 1
VLCD3
GND
VDD
VLCD3
COM 2
GND
VDD
SEG N
VLCD3
GND
VDD
VLCD3
GND
SEG N - COM0
ON
-VLCD3
-VDD
VDD
VLCD3
GND
SEG N - COM1
OFF
-VLCD3
-VDD
1/2 bias, 1/3 duty
A type
Figure 6-29c ½ bias, 1/3 duty A Type LCD Waveform
120 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
COM 0
VLCD3
GND
VDD
VLCD3
COM 1
GND
VDD
COM 2
VLCD3
GND
VDD
SEG N
VLCD3
GND
VDD
VLCD3
GND
SEG N -COM0
ON
-VLCD3
-VDD
VDD
VLCD3
GND
SEG N -COM1
OFF
-VLCD3
1/2 bias, 1/3 duty
B type
-VDD
Figure 6-29d ½ bias, 1/3 duty B Type LCD Waveform
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 121
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
VLCD2
COM 0
VLCD3
GND
VDD
VLCD2
COM 1
VLCD3
GND
VDD
COM 2
VLCD2
VLCD3
GND
VDD
VLCD2
SEG N
VLCD3
GND
VDD
VLCD3
SEG N - COM0
GND
ON
-VLCD3
-VDD
VDD
VLCD3
SEG N - COM1
GND
OFF
-VLCD3
-VDD
1/3 bias, 1/3 duty
A type
Figure 6-29e ⅓ bias, ⅓ duty A Type LCD Waveform
122 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
VLCD2
COM 0
VLCD3
GND
VDD
VLCD2
COM 1
VLCD3
GND
VDD
COM 2
VLCD2
VLCD3
GND
VDD
VLCD2
SEG N
VLCD3
GND
VDD
SEG N - COM0
VLCD3
GND
ON
-VLCD3
-VDD
VDD
SEG N - COM1
VLCD3
GND
OFF
-VLCD3
1/3 bias, 1/3 duty
B type
-VDD
Figure 6-29f ⅓ bias, ⅓ duty B Type LCD Waveform
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 123
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
VLCD2
COM 0
VLCD3
GND
VDD
VLCD2
COM 1
VLCD3
GND
VDD
VLCD2
COM 2
VLCD3
GND
VDD
VLCD2
SEG N
VLCD3
GND
VDD
VLCD3
SEG N - COM0
GND
ON
-VLCD3
-VDD
VDD
VLCD3
SEG N -COM1
GND
OFF
-VLCD3
-VDD
1/3 bias, 1/4 duty
A type
Figure 6-29g ⅓ bias, ¼ duty A Type LCD Waveform
124 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
1 frame
VDD
VLCD2
COM 0
VLCD3
GND
VDD
VLCD2
COM 1
VLCD3
GND
VDD
COM 2
VLCD2
VLCD3
GND
VLCD1
VLCD2
SEG N
VLCD3
GND
VLCD1
SEG N COM0
VLCD3
GND
ON
-VLCD3
-VLCD1
VLCD1
SEG N COM1
VLCD3
GND
OFF
-VLCD3
1/3 bias, 1/4 duty
B type
-VLCD1
Figure 6-29h ⅓ bias, ¼ duty B Type LCD Waveform
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 125
EM78P528N
8-Bit Microprocessor with OTP ROM
6.12 LVD (Low Voltage Detector)
Under unstable power source condition, such as external power noise interference or
EMS test condition, a violent power vibration could occur. At the time, the VDD could
become unstable as it could be operating below working voltage. When the system
supply voltage (VDD) is below operating voltage, the IC kernel will automatically keep
all register status.
With LVD set at Bank 1 R45, the detailed LVD operation mode is as follows:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LVDEN
LVDS2
LVDS1
LVDS0
LVDB
−
−
−
R/W
R/W
R/W
R/W
R
−
−
−
Bit 7 (LVDEN): Low Voltage Detector Enable Bit
0: Disable low voltage detector
1: Enable low voltage detector
Bits 6~4 (LVDS2~LVDS0): Low Votage Detector Level Bits
LVDEN
LVDS2~0
LVD Voltage Interrupt Level
LVDSF
1
011
2.2V
1*
1
010
3.3V
1*
1
001
4.0V
1*
1
000
4.5V
1*
0
XX
NA
0
* If Vdd crossovers at the LVD voltage interrupt level as Vdd varies, LVDSF =1.
Bit 3 (LVDB): Low Voltage Detector State Bit. This is a read only bit. When the VDD
pin voltage is lower than LVD voltage interrupt level (selected by LVDS2
~ LVDS0), this bit will be cleared.
0: The low voltage is detected.
1: The low voltage is not detected or LVD function is disabled.
The following steps are needed to setup the LVD function:
1. Set the LVDEN to “1”, then use Bits 6~4 (LVDS2~LVDS0) of Register Bank 1 R45 to
set the LVD interrupt level
2. Wait for LVD interrupt to occur
3. Clear the LVD interrupt flag
126 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
The internal LVD module uses the internal circuit to fit. When user set the LVDEN to
enable the LVD module, the current consumption will increase to 30 μA.
During sleep mode, the LVD module continues to operate. If the device voltage drop
slowly and crosses the detect point. The LVDSF bit will be set and the device will not
wake up from Sleep mode. Until the other wake-up source to wake-up EM78P528N,
the LVD interrupt flag is still set as the prior status.
When the system resets, the LVD flag will be cleared.
The Figure 6-30 shows the LVD module to detect the external voltage situation.
When VDD drops not below VLVD, LVDSF keep at “0”.
When VDD drops below VLVD, LVDSF set to “1”. If global ENI enable, LVDSF will be
set to “1”, the next instruction will branch to the interrupt vector. The LVD interrupt flag
is cleared to “0” by software.
When VDD drops below VRESET and less than 5 μs, the system will keep all the register
status and the system halts but oscillation is active. When VDD drops below VRESET
and more than 5 μs, system RESET will occur, and for the following actions refer to
Section 6.5.1 Reset description.
LVDSF clear by software
Vdd
VLVD
VRESET
LVDSF
Internal
Reset
< LVR voltage drop time
> LVR voltage drop time
Vdd < Vreset not longer than 5us,system keep on
going
16ms
System occur
reset
Figure 6-30 LVD Waveform Characteristics Showing Detection Point in an External Voltage Condition
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 127
EM78P528N
8-Bit Microprocessor with OTP ROM
6.13 Oscillator
6.13.1 Oscillator Modes
The EM78P528N can be operated in two different oscillator modes, such as Internal
RC oscillator mode (IRC) and XTAL oscillator mode (XT). User need to set the
main-oscillator modes by selecting the OSC2~OSC0, and set the sub-oscillator modes
by selecting the FSS1~FSS0 in the Code Option register to complete the overall
oscillator mode setting. Tables 6, 7, and 8 depict how these four modes are defined.
The up-limited operating frequency of crystal/resonator on the different VDD is listed in
Table 6
Table 6 Main-oscillator modes defined by OSC2 ~ OSC0
Main-oscillator mode
HXT1 (High XTAL1 oscillator mode)
Frequency range: 12~16 MHz
HXT2 (High XTAL2 oscillator mode)
Frequency range: 6~12 MHz
XT (XTAL oscillator mode)
Frequency range: 1~6 MHz
LXT1 (Low XTAL1 oscillator mode)
Frequency range: 100K~1 MHz
IRC (Internal RC oscillator mode) (default)
RCOUT (P54) acts as I/O pin
IRC (Internal RC oscillator mode)
RCOUT (P54) acts as clock output pin
OSC2
OSC1
OSC0
1
1
1
1
1
0
1
0
1
1
0
0
0
X
1
0
X
0
Table 7 Sub-oscillator modes defined by FSS1 ~ FSS0
FSS1
FSS0
LXT2 (Low XTAL2) oscillator mode
Frequency range: 32.768kHz
Sub-oscillator mode
0
x
Fs is 32kHz, Xin (P55) / Xout (P56) pin acts as I/O
Fs is 16kHz, Xin (P55) / Xout (P56) pin acts as I/O (default)
1
1
0
1
Note: WDT frequency is always 16kHz whatever the FSS1~0 bits are set.
Table 8 Combination of Main-oscillator and Sub-oscillator modes
Combination
128 •
Main Clock
Sub-clock
1
Crystal
Crystal
2
Crystal
IRC
3
IRC
Crystal
4
IRC
IRC
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Table 9 Summary of Maximum Operating Speeds
Conditions
VDD
2.2
3.0
5.0
Two cycles with two clocks
Fxt max. (MHz)
4.0
8.0
16.0
6.13.2 Crystal Oscillator/Ceramic Resonators (XTAL)
In most applications, Pin OSCI and Pin OSCO can be connected with a crystal or
ceramic resonator to generate oscillation and such circuitry are depicted in the
following Figures. The same thing applies whether it is in HXT mode or in LXT mode.
Table 10 provides the recommended values of C1 and C2. Since each resonator has
its own attribute, user should refer to its specification for appropriate values of C1 and
C2. The serial resistor, RS, may be necessary for AT strip cut crystal or low frequency
mode.
C1
XTAL
RS
C1
XTAL
C2
RS
C2
Figure 6-31 Crystal/Resonator Circuits
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 129
EM78P528N
8-Bit Microprocessor with OTP ROM
Table 10 Capacitor Selection Guide for Crystal Oscillator or Ceramic Resonator
Oscillator Type
Frequency Mode
LXT
(100K~1 MHz)
Main-oscillator
(Ceramic Resonators)
HXT2
(1M~6 MHz)
LXT
(100K~1 MHz)
Main-oscillator
(Crystal Oscillator)
XT
(1M~6 MHz)
HXT2
(6M~12 MHz)
HX1
(12M~16 MHz)
Sub-oscillator
(Crystal Oscillator)
130 •
LXT2
(32.768kHz)
Frequency
C1 (pF)
C2 (pF)
100kHz
60pF
60pF
200kHz
60pF
60pF
455kHz
40pF
40pF
1.0 MHz
30pF
30pF
1.0 MHz
30pF
0pF
2.0 MHz
30pF
30pF
4.0 MHz
20pF
20pF
100kHz
60pF
60pF
200kHz
60pF
60pF
455kHz
40pF
40pF
1.0 MHz
30pF
30pF
1.0 MHz
30pF
30pF
2.0 MHz
30pF
30pF
4.0 MHz
20pF
20pF
6.0 MH
0F
30pF
6.0 MHz
30pF
30pF
8.0 MHz
20pF
20pF
12.0 MHz
30pF
30pF
12.0 MHz
30pF
30pF
16.0 MHz
20pF
20pF
32.768kHz
35pF
35pF
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.13.3 Internal RC Oscillator Mode
EM78P528N offer a versatile internal RC mode with default frequency value of 4 MHz.
The Internal RC oscillator mode has other frequencies (16 MHz, 8 MHz and 1 MHz)
that can be set by Code Option: RCM1 and RCM0. All these four main frequencies can
be calibrated by programming the Code Option bits: C5~C0. The table describes a
typical instance of the calibration.
Internal RC Drift Rate (Ta=25°C, VDD=5V±5%, VSS=0V)
Drift Rate
Internal RC
Frequency
Temperature
(-40℃~+85℃)
Voltage
(2.5V~5.5V)
Process
Total
1 MHz
4 MHz
8 MHz
±2%
±2%
±2%
±1%
±1%
±1%
±1%
±1%
±1%
±4%
±4%
±4%
16 MHz
±2%
±1%
±1%
±4%
Note: These are theoretical values provided for reference only. Actual values may vary
depending on the actual process.
6.14 Power-on Considerations
Any microcontroller is not guaranteed to start to operate properly before the power
supply stabilizes to a steady state. The EM78P528N is equipped with a built-in
Power-On Voltage Detector (POVD) with a detecting level of 2.0V. It will work well if
VDD rises fast enough (50 ms or less). However, in many critical applications, extra
devices are still required to assist in solving power-up problems.
6.15 External Power-on Reset Circuit
The circuits shown in Figure 6-32 implement an external RC to generate a reset pulse.
The pulse width (time constant) should be kept long enough for VDD to reach minimum
operating voltage. Apply this circuit when the power supply has a slow rising time.
Since the current leakage from the /RESET pin is about ±5 μA, it is recommended that
R should not be greater than 40 KΩ in order for the /RESET pin voltage to remain at
below 0.2V. The diode (D) acts as a short circuit at the moment of power down. The
capacitor (C) will discharge rapidly and fully. The current-limited resistor (Rin) will
prevent high current or ESD (electrostatic discharge) from flowing to Pin /RESET.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 131
EM78P528N
8-Bit Microprocessor with OTP ROM
VDD
VDD
/RESET
R
Rin
D
C
Figure 6-32 External Power-up Reset Circuit
6.16 Residue-Voltage Protection
When the battery is replaced, device power (VDD) is taken off but residue-voltage
remains. The residue-voltage may trip below VDD minimum, but not to zero. This
condition may cause a poor power-on reset. The following Figures 6-33a and 6-33b
show how to build and accomplish a proper residue-voltage protection circuit.
VDD
VDD
33K
Q1
10K
/RESET
100K
1N4684
Figure 6-33a Residue Voltage Protection Circuit 1
132 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
VDD
VDD
R1
Q1
/RESET
R2
R3
Figure 6-33b Residue Voltage Protection Circuit 2
6.17 Code Option
6.17.1 Code Option Register (Word 0)
Word 0
Bit
Bit 14 Bit 13 Bit 12 Bit11 Bit10
Bit9
Bit8
Bit7
Bit6
Bit5
Bit4
Bit3
Mnemonic
-
-
-
-
HLFS
-
LVR1 LVR0 RESETEN ENWDT NRHL
1
0
Default
1
1
1
1
Normal
Green
1
0
High High
P57
Disable 32/fc Enable
Low Low /RESET1 Enable 8/fc Disable
1
1
1
1
1
1
Bit2 Bit1 Bit0
NRE PR2 PR1 PR0
Disable
Enable
1
Bits 14~11: Not used, set to "1" all the time.
Bit 10 (HLFS): Reset to Normal or Green Mode Select Bit
0: CPU is selected as Green mode when a reset occurs.
1: CPU is selected as Normal mode when a reset occurs (default)
Bit 9: Not used, set to "0" all the time.
Bits 8~7 (LVR1~LVR0): Low voltage reset enable bit.
LVR1
0
0
∗
∗∗
∗∗∗
LVR0
VDD Reset Level
4.0V
4.2V
3.5V
∗∗
3.7V
2.7V
∗∗∗
2.9V
0
1
1
0
1
1
VDD Release Level
∗
NA ( Power-on Reset )
If VDD < 4.0V and is kept for about 5 µs, IC will be reset.
If VDD < 3.5V and is kept for about 5 µs, IC will be reset.
If VDD < 2.7V and is kept for about 5 µs, IC will be reset.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 133
EM78P528N
8-Bit Microprocessor with OTP ROM
Bit 6 (RESETEN): P57//RESET1 pin selection bit
0: Enable, /RESET1 pin. The initial value of Bank 1-R8<7> (PH57) will
be set to “0” (enable internal pull-high).
1: Disable, P57 pin (default)
Bit 5 (ENWDT): WDT enable bit
0: Enable
1: Disable (default)
Bit 4 (NRHL): Noise rejection high/low pulse define bit.
0: pulses equal to 8/fc is regarded as signal
1: pulses equal to 32/fc is regarded as signal (default)
NOTE
In Low XTAL oscillator (LXT) mode, the noise rejection high/low
pulses are always 8/Fm.
Bit 3 (NRE): Noise Rejection Enable bit
0: Disable
1: Enable (default). But in Green, Idle, and Sleep modes the noise
rejection circuit is always disabled.
Bits 2~0 (PR2~PR0): Protect Bits. Each protect status is as follows:
(only for real chip)
PR2
PR1
PR0
Protect
0
0
0
Enable
1
1
1
Disable
6.17.2 Code Option Register (Word 1)
Word 1
Bit
Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6
Mnemonic FSS1 FSS0
C5
C4
C3
C2
C1
Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
C0 RCM1 RCM0
Bit 0
-
OSC2 OSC1 OSC0 RCOUT
1
High High High High High High High High High High
-
High High High
High
0
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
-
Low
Low
Low
Low
Default
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
134 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Bits 14~13 (FSS1~FSS0): Sub-oscillator mode select bits.
Sub-oscillator mode
FSS1
FSS0
LXT2 mode
Frequency range: 32.768kHz
0
x
Fs is 32kHz, Xin (P55) / Xout (P56) pin act as I/O
1
0
Fs is 16kHz, Xin (P55) / Xout (P56) pin act as I/O (default)
1
1
Note: WDT frequency is always 16kHz whatever the FSS1~0 bits are set.
Bits 12~7 (C5~C0): IRC trim bits. These are automatically set by the writer.
Bits 6~5 (RCM1~RCM0): IRC frequency select bits
RCM1
RCM0
Frequency (MHz)
0
0
1
0
1
8
1
0
16
1
1
4 (default)
Bit 4: Not used, set to "1" all the time.
Bits 3~1 (OSC2~OSC0): Main-oscillator mode select bits.
Main-oscillator Mode
OSC2
OSC1
OSC0
1
1
1
1
1
0
1
0
1
1
0
0
0
X
1
0
X
0
HXT1 (High XTAL1 oscillator mode)
Frequency range: 16~12 MHz
HXT2(High XTAL2 oscillator mode)
Frequency range: 12~6 MHz
XT (XTAL oscillator mode)
Frequency range: 6~1 MHz
LXT1 (Low XTAL1 oscillator mode)
Frequency range: 1M~100kHz
IRC (Internal RC oscillator mode) (default)
RCOUT (P54) acts as I/O pin
IRC (Internal RC oscillator mode)
RCOUT (P54) acts as clock output pin
Bit 0 (RCOUT): System Clock Output Enable Bit in IRC mode
0: OSCI pin is open drain
1: OSCI output instruction cycle time (default)
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 135
EM78P528N
8-Bit Microprocessor with OTP ROM
6.17.3 Code Option Register (Word 2)
Word 2
Bit
Bit 14 Bit 13 Bit 12 Bit11 Bit10 Bit9 Bit8 Bit7
Bit6
Bit5
Bit4
Bit3 Bit2 Bit1 Bit0
Mnemonic
-
-
-
SC3
SC2 SC1 SC0
-
IRCIRS
-
I2COPT
-
-
-
-
1
-
-
-
High High High High
-
Regulator
-
High
-
-
-
-
0
-
-
-
Low
-
Bandgap
-
Low
-
-
-
-
Default
0
1
1
1
1
1
0
1
1
0
1
0
Low Low Low
1
1
1
Bit 14: Not used, set to “0” all the time.
Bits 13~12: Not used, set to “1” all the time.
Bits 11~8 (SC3~SC0): Trim bits of sub frequency IRC. These are automatically set by
the writer.
Bit 7: Not used, set to “1” all the time.
Bit 6 (IRCIRS): IRC Internal Reference Select
0: Bandgap
1: IRC regulator (default)
Bit 5: Not used, set to “0” all the time.
2
2
Bit 4 (I2COPT): I C optional bit. It is used to switch the pin position of I C function.
0: Placed I2C pins together with UART pins shown in the Pin Assignment
figure.
1: Placed I2C pins together with SPI pins shown in the Pin Assignment
figure (default)
Bit 3: Not used, set to “1” all the time.
Bit 2: Not used, set to “0” all the time.
Bit 1: Not used, set to “1” all the time.
Bit 0: Not used, set to “0” all the time.
136 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
6.17.4 Code Option Register (Word 3)
Word 3
Bit
Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Mnemonic
EFTIM
-
-
ADFM
-
-
-
-
-
1
Light
-
-
High
-
-
-
-
-
0
Heavy
-
-
Low
-
-
-
-
-
Default
1
1
1
1
1
1
1
1
1
ID5
ID4
ID3
ID2
ID1
ID0
Customer ID
Bits 14 (EFTIM): Low Pass Filter (0: Heavy, 1: Light)
0: Less than 10 MHz - pass (heavy LPS)
1: Less than 25 MHz - pass (light LPS, default)
Bits13~12: Not used. Set to “1” all the time.
Bit 11 (ADFM): These bits control the AD data buffer format (ADDH and ADDL).
Refer to the following table.
ADFM
0
12
bits
1
ADDH
Bit 7
Bit 6
-
-
Bit 5 Bit 4
-
-
Bit 3
Bit 2
Bit 1
Bit 0
ADD11 ADD10 ADD9 ADD8
ADDL ADD7 ADD6 ADD5 ADD4 ADD3 ADD2 ADD1 ADD0
ADDH ADD11 ADD10 ADD9 ADD8 ADD7 ADD6 ADD5 ADD4
ADDL
-
-
-
-
ADD3 ADD2 ADD1 ADD0
Note: Do not use if the hardware bits are set to “0”.
If ADFM=0, ADDH<7:4> = 0000.
Bits 10~6: Not used. Set to “1” all the time.
Bits 5~0 (ID5~ID0): Customer’s ID Code (only for real chip)
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 137
EM78P528N
8-Bit Microprocessor with OTP ROM
6.18 Instruction Set
Each instruction in the instruction set is a 15-bit word divided into an OP code and one
or more operands. Normally, all instructions are executed within one single instruction
cycle (one instruction consists of 2 oscillator periods), unless the program counter is
changed by instruction "MOV R2,A", "ADD R2,A", or by instructions of arithmetic or
logic operation on R2 (e.g. "SUB R2,A", "BS(C) R2,6", "CLR R2", etc.). In this case, the
execution takes two instruction cycles.
If for some reasons, the specification of the instruction cycle is not suitable for certain
applications, try modifying the instruction as follows:
The conditional skip ("JBS", "JBC", "JZ", "JZA", "DJZ", "DJZA") commands which were
tested to be true, are executed within two instruction cycles. The instructions that are
written to the program counter also take two instruction cycles.
In addition, the instruction set has the following features:
(1) Every bit of any register can be set, cleared, or tested directly (except read only)
(2) The I/O register can be regarded as general register. That is, the same instruction
can operate on I/O register.
„
Instruction Set Convention:
R = Register designator that specifies which one of the registers (including operation and
general purpose registers) is to be utilized by the instruction.
b = Bit field designator that selects the value for the bit located in the register R and which
affects the operation.
k = 8 or 12-bit constant or literal value
138 •
Mnemonic
NOP
DAA
SLEP
WDTC
ENI
DISI
RET
RETI
MOV R,A
CLRA
CLR R
SUB A,R
Operation
No Operation
Decimal Adjust A
0 → WDT, Stop oscillator
0 → WDT
Enable Interrupt
Disable Interrupt
[Top of Stack] → PC
[Top of Stack] → PC, Enable Interrupt
A→ R
0 →A
0→R
R-A → A
SUB R,A
R-A → R
DECA R
DEC R
OR A,R
OR R,A
R-1 → A
R-1 → R
A∨ R →A
A∨ R → R
Status Affected
None
C
T,P
T,P
None
None
None
None
None
Z
Z
Z, C, DC
Z, C, DC
Z
Z
Z
Z
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Mnemonic
AND A,R
AND R,A
XOR A,R
XOR R,A
ADD A,R
ADD R,A
MOV A,R
MOV R,R
COMA R
COM R
INCA R
INC R
DJZA R
DJZ R
RRCA R
RRC R
RLCA R
RLC R
SWAPA R
SWAP R
JZA R
JZ R
BC R,b
BS R,b
JBC R,b
JBS R,b
CALL k
JMP k
MOV A,k
OR A,k
AND A,k
XOR A,k
RETL k
SUB A,k
ADD A,k
SBANK k
GBANK k
LCALL k
LJMP k
TBRD R
Operation
A& R →A
A& R → R
A⊕ R →A
A⊕ R → R
A+ R →A
A+ R →R
R →A
R→R
/R → A
/R → R
R+1 → A
R+1 → R
R-1 → A, skip if zero
R-1 → R, skip if zero
R(n) → A(n-1),
R(0) → C, C → A(7)
R(n) → R(n-1),
R(0) → C, C → R(7)
R(n) → A(n+1),
R(7) → C, C → A(0)
R(n) → R(n+1),
R(7) → C, C → R(0)
R(0-3) → A(4-7),
R(4-7) → A(0-3)
R(0-3) ↔ R(4-7)
R+1 → A, skip if zero
R+1 → R, skip if zero
0 → R(b)
1 → R(b)
if R(b)=0, skip
if R(b)=1, skip
PC+1 → [SP],
(Page, k) → PC
(Page, k) → PC
k →A
A∨ k →A
A& k →A
A⊕ k →A
k → A,
[Top of Stack] → PC
k-A → A
k+A → A
K->R1(4)
K->R1(0)
Next instruction : k kkkk kkkk kkkk
PC+1→ [SP], k→ PC
Next instruction : k kkkk kkkk kkkk
K→ PC
ROM[(TABPTR)] → R
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
Status Affected
Z
Z
Z
Z
Z, C, DC
Z, C, DC
Z
Z
Z
Z
Z
Z
None
None
C
C
C
C
None
None
None
None
None
None
None
None
None
None
None
Z
Z
Z
None
Z, C, DC
Z, C, DC
None
None
None
None
None
• 139
EM78P528N
8-Bit Microprocessor with OTP ROM
7
Absolute Maximum Ratings
Items
Rating
Temperature under bias
Storage temperature
8
to
-40°C
85°C
-65°C
to
150°C
Input voltage
VSS-0.3V
to
VDD+0.5V
Output voltage
VSS-0.3V
to
VDD+0.5V
Working Voltage
2.1V
to
5.5V
Working Frequency
DC
to
16 MHz
DC Electrical Characteristics
VDD=5.0V, VSS=0V, Ta=25°C
Symbol
Fxt
Parameter
XTAL: VDD to 3V
XTAL: VDD to 5V
IRC: VDD to 5V
Condition
Two cycles with two clocks
4 MHz, 1 MHz, 8kHz, 16 MHz
−
Min.
DC
DC
−
Typ.
8
16
F
Max.
−
−
−
Unit
MHz
MHz
Hz
−
±1
−
%
IRCE
Internal RC oscillator error per stage
IRC1
IRC:VDD to 5V
RCM0:RCM1=1:1
−
4
−
MHz
IRC2
IRC:VDD to 5V
RCM0:RCM1=1:0
−
8
−
MHz
IRC3
IRC:VDD to 5V
RCM0:RCM1=0:1
−
16
−
MHz
IRC4
IRC:VDD to 5V
RCM0:RCM1=0:0
−
1
−
MHz
IIL
Input Leakage Current for input pins
VIN = VDD, VSS
-1
0
1
μA
VIH1
Input High Voltage (Schmitt trigger)
Ports 5, 6, 7, 8, 9, A
0.7VDD
−
VDD+0.3V
V
Input Low Voltage (Schmitt trigger)
Ports 5, 6, 7, 8, 9, A
-0.3V
−
0.3VDD
V
/RESET
0.7VDD
−
VDD+0.3V
V
/RESET
-0.3V
−
0.3VDD
V
TCC, INT
0.7VDD
−
VDD+0.3V
V
TCC, INT
-0.3V
−
0.3VDD
V
VIL1
VIHT1
VILT1
VIHT2
VILT2
Input High Threshold Voltage
(Schmitt trigger )
Input Low Threshold Voltage
(Schmitt trigger )
Input High Threshold Voltage
(Schmitt trigger )
Input Low Threshold Voltage
(Schmitt trigger )
VIHX1
Clock Input High Voltage
OSCI in crystal mode
2.9
3.0
3.1
V
VILX1
Clock Input Low Voltage
OSCI in crystal mode
1.7
1.8
1.9
V
VOH = VDD-0.1VDD
-2.7
-4.5
−
mA
VOH = VDD-0.1VDD
-4.8
-8
−
mA
VOL = GND+0.1VDD
8.4
14
−
mA
VOL = GND+0.1VDD
16.8
28
−
mA
IOH1
IOH2
IOL1
IOL2
IPH
IPL
140 •
High Drive Current 1
(Ports 5, 6, 7, 8, 9, A)
High Drive Current 2
(Ports 5, 6, 7, 8, 9, A)
Low Sink Current 1
(Ports 5, 6, 7, 8, 9, A)
Low Sink Current 2
(Ports 5, 6, 7, 8, 9, A)
Pull-high current
Pull-high active, input pin at VSS
47
-72
97
μA
Pull-low current
Pull-low active, input pin at VDD
27
52
77
μA
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Symbol
Parameter
LVR1
Low voltage reset level 1
(2.7V)
LVR2
Low voltage reset level 2
(3.5V)
LVR3
Low voltage reset level 3
(4.0V)
ISB1
Power down current
(Sleep mode)
ISB2
Power down current
(Sleep mode)
ISB3
Power down current
(Idle mode)
ISB4
Power down current
(Idle mode)
ISB5
Power down current
(Idle mode)
ICC1
ICC2
ICC3
ICC4
ICC5
ICC6
ICC7
ICC8
Operating supply current
(Green mode)
Operating supply current
(Green mode)
Operating supply current
(Green mode)
Operating supply current
(Normal mode)
Operating supply current
(Normal mode)
Operating supply current
(Normal mode)
Operating supply current
(Normal mode)
Operating supply current
(Normal mode)
ILCD1
All LCD lighting
ILCD2
All LCD lighting
ILCD3
All LCD lighting
ILCD4
All LCD lighting
Condition
Ta = 25°C
Ta = -40°C ~ 85°C
Ta = 25°C
Ta = -40°C ~ 85°C
Ta = 25°C
Ta = -40°C ~ 85°C
Ta=25°C, /RESET= 'High', Fm & Fs off
All input and I/O pins at VDD,
Output pin floating, WDT disabled
Ta=85°C, /RESET= 'High', Fm & Fs off
All input and I/O pins at VDD,
Output pin floating, WDT disabled
/RESET= 'High', Fm & Fs off
All input and I/O pins at VDD,
Output pin floating, WDT enabled
/RESET= 'High', Fm off, Fs=16kHz
(IRC type), All input and I/O pins at VDD,
Output pin floating, WDT enabled
/RESET= 'High', Fm off, Fs=32kHz
(IRC type), Output pin floating, WDT disabled,
LCD on (1/3 bias, RBS1~0=00)
/RESET= 'High', Fm off, Fs=32.768kHz (Crystal
type), Output pin floating, WDT disabled, LCD on
(1/3 bias, RBS1~0=00)
/RESET= 'High', Fm off, Fs=16kHz
(IRC type), output pin floating, WDT enabled
Min.
2.41
2.14
3.1
2.73
3.56
3.16
Typ.
2.7
2.7
3.5
3.5
4.0
4.0
Max.
2.99
3.25
3.92
4.25
4.43
4.81
Unit
V
V
V
V
V
V
−
1
2
μA
−
2
2.5
μA
−
4.2
−
μA
−
5.6
−
μA
−
19
−
μA
−
22
−
μA
−
12.8
−
μA
/RESET= 'High', Fm off, Fs=32kHz
(IRC type), Output pin floating, WDT enabled
−
17.6
−
μA
/RESET= 'High', Fm off, Fs=32.768kHz
(Crystal type), output pin floating, WDT enabled
/RESET= 'High', Fm=4 MHz (Crystal type), Fs on,
output pin floating, WDT enabled
/RESET= 'High', Fm=4 MHz (IRC type), Fs on,
output pin floating, WDT enabled
/RESET= ‘High’, Fm=10 MHz
(Crystal type), Fs on, output pin floating,
WDT enabled
/RESET= ‘High’, Fm=16 MHz (IRC type), Fs on,
output pin floating, WDT enabled
/RESET= ‘High’, Fm=16 MHz (Crystal type),
Fs on, output pin floating, WDT enabled
VLCD=5V, exclude CPU core operation current
(no load), 1/3 bias, RBS1~0=00
VLCD=5V, exclude CPU core operation current
(no load), 1/3 bias, RBS1~0=01
VLCD=5V, exclude CPU core operation current
(no load), 1/3 bias, RBS1~0=10
VLCD=5V, exclude CPU core operation current
(no load), 1/3 bias, RBS1~0=11
−
24.5
−
μA
−
1.6
−
mA
−
1.5
−
mA
−
3.6
−
mA
−
4.6
−
mA
−
5.7
−
mA
−
12
−
μA
−
20
−
μA
−
33.5
−
μA
−
100
−
μA
* These parameters are characterize but not tested.
** Data in the Minimum, Typical, Maximum (“Min.”, “Typ.”, ”Max.”) column are based on
characterization results at 25°C. These data are for design reference only and have not been
tested.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 141
EM78P528N
8-Bit Microprocessor with OTP ROM
8.1 AD Converter Characteristics
VDD=5V, VSS=0V, Ta=25°C
Symbol
VAREF
Parameter
VASS
Analog reference
voltage
VAI
Analog input voltage
Ivdd
IAI1
Analog supply current
Ivref
Ivdd
IAI2
Analog supply current
Ivref
Condition
VAREF-VASS ≧ 2.5V
−
VAREF = VDD = 5.5V
VASS = VSS = 0V
FS=100kHz, FIN=1kHz
(VREF is internal VDD)
VAREF = VDD = 5.5V
VASS = VSS = 0V
FS=100kHz, FIN=1kHz
(VREF is external VREF pin)
Typ.
Max.
Unit
2.5
−
VDD
V
VSS
−
VSS
V
VASS
−
VAREF
V
−
−
1400
μA
−
−
10
μA
−
−
900
μA
−
−
500
μA
Integral nonlinearity
VAREF = VDD = 5V
VASS = VSS = 0V
FS=100kHz, FIN=1kHz
−
−
±4
LSB
DNL
Differential nonlinear
VAREF = VDD = 5V
VASS = VSS = 0V
FS=100kHz, FIN=1kHz
−
−
±1
LSB
FSE
Full scale error
−
−
±8
LSB
OE
Offset error
VAREF = VDD = 5V
VASS = VSS = 0V, Fs=100kHz
−
−
±4
LSB
ZAI
Recommended
impedance of analog
voltage source
−
−
−
10
kΩ
0.5
−
−
μs
2
−
−
μs
4
−
−
μs
16
−
−
μs
−
Tsh+12TAD
−
TAD
INL
VAREF = VDD = 5V
VASS = VSS = 0V, Fs=100kHz
VDD = 3V~5.5V
TAD
A/D clock duration
VASS = VSS = 0V, FIN=1kHz
VDD = 2.5V~3V
VASS = VSS = 0V, FIN=1kHz
VDD = 3V~5.5V
TSH
Sample and Hold time
VASS = VSS = 0V
VDD = 2.5V~3V
VASS = VSS = 0V
TCN
142 •
Min.
A/D conversion time
VDD = 2.5V~5V
VASS = VSS = 0V
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
TADD1
AD delay time between
VDD=2.5~5.5V, VASS=0.0V
setting “ADRUN” and
starting 1st TAD
0.5
−
−
TAD
TADD2
AD delay time between
changing “ADOM” and VDD=2.5~5.5V, VASS=0.0V
setting “ADRUN”
2
−
−
TAD
TADD3
AD delay time between
VDD=2.5~5.5V, VASS=0.0V
changing “ADIS” and
setting “ADRUN”
2
−
−
TAD
TADD4
AD delay time between
VDD=2.5~5.5V, VASS=0.0V
changing “ADP” and
setting “ADRUN”
2
−
−
TAD
PSRR
VDD = 2.5 ~ 5.5V, VAREF = 2.5V,
Power supply rejection
VASS = VSS = 0V, Vin = 0 ~ 2.5V,
ratio
FS = 25kHz
−
−
2
LSB
A1/4VDD
Accuracy for 1/4VDD
−
±3
−
%
−
Note:
1. FS is Sample Rate or conversion rate. FIN is freq. of input test sine wave
2. The parameters are theoretical values and have not been tested. Such parameters are for
design reference only.
3. There is no current consumption when ADC is off other than minor leakage current.
4. AD conversion result will not decrease when the input voltage is increased, and there is no
missing code.
5. These parameters are subject to change without further notice.
8.2 VREF 2V/3V/4V Characteristics
VDD=5V, VSS=0V, Ta=25°C
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
–
2.1
−
5.5
V
VDD
Power Supply
IVDD
DC Supply Current No load
−
−
250
µA
AVref
Accuracy for Vref
Vref = 2V, 3V, 4V
−
±1
±1.75
%
Warn up
time
Time ready for
voltage reference
VDD = VDDmin - 5.5V,
Cload = 19.2pf
Rload = 15.36KΩ
−
30
50
µs
VDDmin
Minimum
Power Supply
−
−
Vref + 0.2
−
V
∗
* VDDmin : Can also work at Vref+0.1V, but has a poor PSRR.
Note:
1. The parameters are theoretical values and have not been tested. Such parameters are for
design reference only.
2. These parameters are subject to change without prior notice.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 143
EM78P528N
8-Bit Microprocessor with OTP ROM
9
AC Electrical Characteristics
Ta=25°C, VDD=5V ± 5%, VSS=0V
Symbol
Parameter
Dclk
Input CLK duty cycle
Tins
Instruction Cycle Time
Ttcx
TCX Input Period
Tpor
Delay time after Power-on-Reset release
Trstrl
Delay time after /RESET,
WDT and LVR release
Conditions
Min.
Typ.
Max. Unit
−
45
50
55
%
Crystal type
125
−
DC
ns
IRC type
125
−
DC
ns
−
Tins
−
−
ns
16kHz
−
16±3%
−
ms
Crystal type, HLFS=1
−
WSTO+510/Fm
−
−
IRC type, HLFS=1
−
WSTO+8/Fm
−
−
Crystal type, HLFS=0
−
WSTO+510/Fs
−
−
IRC type, HLFS=0
−
WSTO+8/Fs
−
−
−
−
1
−
μs
16kHz
−
16±3%
−
ms
Trsth
Hold time after /RESET and LVR reset
Twdt
Watchdog timer period
Tset
Input pin setup time
−
−
0
−
ns
Thold
Input pin hold time
−
15
20
25
ns
Tdelay
Output pin delay time
−
20
−
ns
Cload=20pF
Rload=1M
* Tpor and Twdt are16+/- 10% ms at Ta = -40° ~ 85°C, and VDD = 2.1~5.5V
** WSTO: Waiting time of Start-to-Oscillation
Note:
1. These parameters are hypothetical (not tested) and are provided for design reference only.
2. Data under Minimum, Typical and Maximum (Min., Typ. and Max.) columns are based on
hypothetical results at 25°C. These data are for design reference only and have not been
tested or verified.
144 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
10 Timing Diagrams
AC Test Input/Output Waveform
Note: AC Testing: Input are driven at VDD-0.5V for logic “1,” and VSS+0.5V for logic “0”
Timing measurements are made at 0.75VDD for logic “1,” and 0.25VDD for logic “0”
Figure 10-1a AC Test Input/Output Waveform Timing Diagram
Reset Timing
Figure 10-1b Reset Timing Diagram
TCC Input Timing
Figure 10-1c TCC Input Timing Diagram
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 145
EM78P528N
8-Bit Microprocessor with OTP ROM
APPENDIX
A Ordering and Manufacturing Information
146 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
B Package Type
OTP MCU
Package Type
Pin Count
Package Size
EM78P528NQ44J
QFP
44
10 mm × 10 mm
EM78P528NL44J
LQFP
44
10 mm × 10 mm
EM78P528NL48J
LQFP
48
7 mm × 7 mm
For product code "J".
These are Green products and comply with RoHS specifications.
Part No.
EM78P528NxJ
Electroplate type
Pure Tin
Ingredient (%)
Sn:100%
Melting point (°C)
232°C
Electrical resistivity ( μΩ-cm )
11.4
Hardness (hv)
8~10
Elongation (%)
>50%
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 147
EM78P528N
8-Bit Microprocessor with OTP ROM
C Package Information
C.1 EM78P528NQ44
Figure B-1 EM78P528N 44-pin QFP Package Type
148 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
C.2 EM78P528NL44
Figure B-2 EM78P528N 44-pin LQFP Package Type
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 149
EM78P528N
8-Bit Microprocessor with OTP ROM
C.3 EM78P528NL48
Figure B-3 EM78P528N 48-pin LQFP Package Type
150 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
D Quality Assurance and Reliability
Test Category
Test Conditions
Remarks
Solder temperature=245±5°C, for 5 seconds up to the
stopper using a rosin-type flux
Solderability
Step 1: TCT, 65°C (15 min)~150°C (15 min), 10 cycles
Step 2: Bake at 125°C, TD (endurance)=24 hrs
Step 3: Soak at 30°C/60% , TD (endurance)=192 hrs
Step 4: IR flow 3 cycles
Pre-condition
(Pkg thickness ≥ 2.5mm or
3
Pkg volume ≥ 350 mm ----225±5°C)
For SMD IC (such as
SOP, QFP, SOJ, etc)
(Pkg thickness ≤ 2.5 mm or
3
Pkg volume ≤ 350 mm ----240±5°C )
Temperature cycle test
-65°C (15mins)~150°C (15min), 200 cycles
Pressure cooker test
TA =121°C, RH=100%, pressure = 2 atm,
TD (endurance)= 96 hrs
High temperature /
High humidity test
TA=85°C , RH=85% , TD (endurance)=168 , 500 hrs
High-temperature
storage life
TA=150°C, TD (endurance)=500, 1000 hrs
High-temperature
operating life
TA=125°C, VDD=Max. operating voltage,
TD (endurance) =168, 500, 1000 hrs
Latch-up
TA=25°C, VDD=Max. operating voltage, 800mA/40V
ESD (HBM)
TA=25°C, ≥ | ± 4KV |
IP_ND,OP_ND,IO_ND
IP_NS,OP_NS,IO_NS
IP_PD,OP_PD,IO_PD,
ESD (MM)
TA=25°C, ≥ | ± 400V |
IP_PS,OP_PS,IO_PS,
VDD-VSS(+),VDD_VSS
(-) mode
D.1 Address Trap Detect
An address trap detect is one of the MCU embedded fail-safe functions that detects
MCU malfunction caused by noise or the like. Whenever the MCU attempts to fetch an
instruction from a certain section of ROM, an internal recovery circuit is auto started. If
a noise caused address error is detected, the MCU will repeat execution of the program
until the noise is eliminated. The MCU will then continue to execute the next program.
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 151
EM78P528N
8-Bit Microprocessor with OTP ROM
E
EM78P528N Program Pin List
UWTR is used to program the EM78P528N IC’s. The UWTR connector is selected by
UWTR-ADP050-C. The software is selected by EM78P528N.
F
Program Pin Name
IC Pin Name
LQFP-48
Pin Number
L/QFP-44
Pin Number
CLK
P50
2
2
DATA
P51
3
3
VDD
VDD
5
5
VSS
VSS
6
6
VPP
/RESET2
9
9
ICE 400 Oscillator Circuit (JP3)
F.1 Mode 1
Main oscillator : Crystal mode
Sub oscillator
152 •
: Crystal mode
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
EM78P528N
8-Bit Microprocessor with OTP ROM
F.2 Mode 2
Main oscillator : IRC mode
Sub oscillator : Crystal mode
F.3 Mode 3
Main oscillator : Crystal mode
Sub oscillator : IRC mode
F.4 Mode 4
Main oscillator : IRC mode
Sub oscillator : IRC mode
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)
• 153
EM78P528N
8-Bit Microprocessor with OTP ROM
154 •
Product Specification (V1.2) 03.29.2013
(This specification is subject to change without further notice)