Mitsubishi M38272M8MXXXFS Single-chip 8-bit cmos microcomputer Datasheet

MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
●Serial I/O1 .................... 8-bit ✕ 1 (UART or Clock-synchronized)
●Serial I/O2 ...................................8-bit ✕ 1 (Clock-synchronized)
●PWM output .................................................................... 8-bit ✕ 1
●A-D converter ............................................... 10-bit ✕ 8 channels
●D-A converter ................................................. 8-bit ✕ 2 channels
●LCD drive control circuit
Bias ................................................................................... 1/2, 1/3
Duty ........................................................................... 1/2, 1/3, 1/4
Common output .......................................................................... 4
Segment output ........................................................................ 40
●2 Clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
●Watchdog timer ............................................................ 14-bit ✕ 1
●Power source voltage ................................................ 2.2 to 5.5 V
●Power dissipation
In high-speed mode .......................................................... 40 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode ............................................................ 60 µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
●Operating temperature range ................................... – 20 to 85°C
DESCRIPTION
The 3827 group is the 8-bit microcomputer based on the 740 family core technology.
The 3827 group has the LCD drive control circuit, the A-D/D-A
converter, the UART, and the PWM as additional functions.
The various microcomputers in the 3827 group include variations
of internal memory size and packaging. For details, refer to the
section on part numbering.
For details on availability of microcomputers in the 3827 group, refer to the section on group expansion.
FEATURES
●Basic machine-language instructions ...................................... 71
●The minimum instruction execution time ........................... 0.5 µs
(at 8MHz oscillation frequency)
●Memory size
ROM ................................................................. 4 K to 60 K bytes
RAM ................................................................. 192 to 2048 bytes
●Programmable input/output ports ............................................ 55
●Output port ................................................................................. 8
●Input port .................................................................................... 1
●Interrupts ................................................. 17 sources, 16 vectors
(includes key input interrupt)
●Timers ........................................................... 8-bit ✕ 3, 16-bit ✕ 2
APPLICATIONS
Camera, wireless phone, etc.
51
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47
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46
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88
43
42
89
M38277M8MXXXFP
90
41
RESET
P70/INT0
P71
P72
P73
30
28
29
27
25
26
24
22
23
20
21
18
19
P16
P17
P20
P21
P22
P23
P24
P25
P26
P27
VSS
XOUT
XIN
XCOUT
XCIN
C1
VL1
P67/AN7
P66/AN6
P65/AN5
P64/AN4
P63/SCLK22 /AN3
P62/SCLK21 /AN2
P61/SOUT2/AN1
P60/SIN2/AN0
P57/DA2
P56/DA1
P55/CNTR1
P54/CNTR0
P53/RTP1
P52/RTP0
P51/PWM1
P50/PWM0
P47/SRDY1
P46/SCLK1
P45/TXD
P44/RXD
P43/φ/TOUT
P42/INT2
P41/INT1
P40/ADT
P77
P76
P75
P74
15
31
16
17
32
100
12
33
99
13
14
98
11
34
10
35
97
9
36
96
8
37
95
6
7
38
94
5
39
93
4
40
92
3
91
1
2
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VCC
VREF
AVSS
COM3
COM2
COM1
COM0
VL3
VL2
C2
79
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
P30/SEG18
P31/SEG19
P32/SEG20
P33/SEG21
P34/SEG22
P35/SEG23
P36/SEG24
P37/SEG25
P00/SEG26
P01/SEG27
P02/SEG28
P03/SEG29
P04/SEG30
P05/SEG31
P06/SEG32
P07/SEG33
P10/SEG34
P11/SEG35
P12/SEG36
P13/SEG37
P14/SEG38
P15/SEG39
PIN CONFIGURATION (TOP VIEW)
Package type : 100P6S-A (100-pin plastic-molded QFP)
Fig. 1 M38277M8MXXXFP pin configuration
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
52
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44
83
84
43
42
85
86
40
41
87
88
39
M38277M8MXXXGP
38
89
90
37
36
M38277M8MXXXHP
91
92
35
34
93
33
94
32
31
95
96
30
29
97
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98
99
27
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21
20
22
19
18
16
17
15
14
13
12
9
8
10
11
7
6
5
4
3
P14 /SEG38
P15 /SEG39
P16
P17
P20
P21
P22
P23
P24
P25
P26
P27
VSS
XOUT
XIN
XCOUT
XCIN
RESET
P70 /INT0
P71
P72
P73
P74
P75
P76
P67/AN7
P66/AN6
P65 /AN5
P64/AN4
P63/SCLK22 /AN3
P62/SCLK21 /AN2
P61 /SOUT2 /AN1
P60/SIN2 /AN0
P57/DA2
P56 /DA1
P55/CNTR 1
P54/CNTR0
P53/RTP 1
P52 /RTP0
P51/PWM1
P50 /PWM0
P47 /SRDY1
P46/SCLK1
P45/ TXD
P44/R XD
P43 /φ/TOUT
P42/INT 2
P41/INT1
P40/ADT
P77
2
100
1
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VCC
VREF
AVSS
COM3
COM2
COM1
COM0
VL3
VL2
C2
C1
VL1
74
75
SEG13
SEG14
SEG15
SEG16
SEG17
P30 /SEG18
P31/SEG19
P32/SEG20
P33/SEG21
P34/SEG22
P35 /SEG23
P36/SEG24
P37/SEG25
P00 /SEG26
P01/SEG27
P02/SEG28
P03 /SEG29
P04/SEG30
P05/SEG31
P06/SEG32
P07/SEG33
P10 /SEG34
P11/SEG35
P12/SEG36
P13 /SEG37
PIN CONFIGURATION (TOP VIEW)
Package type : GP........ 100P6Q-A (100-pin plastic-molded LQFP)
Package type : HP ........ 100PFB-A (100-pin plastic-molded TQFP)
Fig. 2 M38277M8MXXXGP/M38277M8MXXXHP pin configuration
2
Sub-clock output
Sub-clock input
XCIN XCOUT
X COUT
X CIN
I/O port P7
P7(8)
Watchdog timer
Sub-clock output
X COUT
φ
INT0
X CIN
Sub-clock input
SI/O2(8)
I/O port P6
Reset
P6(8)
Main clock output
X OUT
Clock generating circuit
X IN
Main clock input
VREF
AVSS
A-D converter
(10)
PCH
C P U
DA2
DA1
I/O port P5
P5(8)
ADT
CNTR0,CNTR1
PS
PCL
S
Y
X
A
PWM(8)
I/O port P4
P4(8)
φ
SI/O1 (8)
Timer 1(8)
P3(8)
Output port P3
TOUT
Timer 3(8)
Timer 2(8)
Timer Y(16)
Timer X(16)
ROM
VSS
VCC
RESET
Data bus
(0V)
(5V)
Reset input
INT1,INT2
FUNCTIONAL BLOCK DIAGRAM
I/O port P2
P2(8)
D-A2
LCD display
RAM
(20 bytes)
RAM
P1(8)
I/O port P1
D-A1
LCD drive
control circuit
I/O port P0
P0(8)
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
COM0
COM1
COM2
COM3
VL1
C1
C2
VL2
VL3
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Fig. 3 Functional block diagram
3
Key input/key-on wake-up interrupt
Real time port function
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION
Table 1 Pin description (1)
Pin
Name
Function
Function except a port function
VCC, VSS
Power source
•Apply voltage of 2.2 V to 5.5 V to VCC, and 0 V to VSS .
VREF
Analog reference voltage
•Reference voltage input pin for A-D converter and D-A converter.
AVSS
Analog power
source
•GND input pin for A-D converter and D-A converter.
•Connect to VSS .
RESET
XIN
Reset input
•Reset input pin for active “L”.
Clock input
•Input and output pins for the main clock generating circuit.
XOUT
Clock output
•Connect a ceramic resonator or a quartz-crystal oscillator between the XIN and XOUT pins to set
the oscillation frequency.
•If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open.
VL1 –VL3
LCD power
source
•Input 0 ≤ VL1 ≤ VL2 ≤ VL3 ≤ VCC voltage.
•Input 0 – VL3 voltage to LCD.
C1, C2
Charge-pump
capacitor pin
•External capacitor pins for a voltage multiplier (3 times) of LCD contorl.
COM0 –COM3
Common output
•LCD common output pins.
•COM2 and COM3 are not used at 1/2 duty ratio.
SEG0 –SEG17
Segment output
•LCD segment output pins.
P00/SEG26 –
P07/SEG33
I/O port P0
•8-bit output port.
•CMOS compatible input level.
•COM3 is not used at 1/3 duty ratio.
•LCD segment output pins
•CMOS 3-state output structure.
•Pull-up control is enabled.
•I/O direction register allows each port to be individually
programmed as either input or output.
P10/SEG34 –
P15/SEG39
I/O port P1
•6-bit output port with same function as port P0.
•CMOS compatible input level.
•CMOS 3-state output structure.
•Pull-up control is enabled.
•I/O direction register allows each 6-bit pin to be programmed as either input or output.
•2-bit I/O port.
•CMOS compatible input level.
P16 , P17
P20 – P2 7
I/O port P2
•CMOS 3-state output structure.
•I/O direction register allows each pin to be individually programmed as either input or output.
•Pull-up control is enabled.
•8-bit I/O port with same function as port P0.
•Key input (key-on wake-up) interrupt
input pins
•CMOS compatible input level.
•CMOS 3-state output structure.
•Pull-up control is enabled.
P3 0/SEG 18 –
P3 7/SEG 25
4
Output port P3
•8-bit output port with same function as port P0.
•CMOS 3-state output structure.
•Port output control is enabled.
•LCD segment output pins
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 2 Pin description (2)
Pin
P40 /ADT
Name
I/O port P4
P41 /INT1 ,
P42 /INT2
P43/φ/T OUT
P44 /RXD,
P45 /TXD,
P46 /SCLK1 ,
P47 /SRDY1
P50 /PWM0,
P51 /PWM1
Function
Function except a port function
•1-bit I/O port with same function as P1 6 and P17 .
•CMOS compatible input level.
•CMOS 3-state output structure.
•A-D trigger input pin
•Interrupt input pin
•7-bit I/O port with same function as P1 6 and P17 .
•CMOS compatible input level.
•CMOS 3-state output structure.
•Pull-up control is enabled.
•Interrupt input pins
•φ clock output pin
•Timer 2 output pin
•Serial I/O1 I/O pins
I/O port P5
•8-bit I/O port with same function as P16 and P17.
•PWM function pins
•CMOS compatible input level.
•CMOS 3-state output structure.
•Pull-up control is enabled.
P52 /RTP0 ,
P53 /RTP1
•Real time port function pins
P54 /CNTR0 ,
P55 /CNTR1
•Timer X, Y function pins
P56 /DA1,
P57 /DA2
•D-A conversion output pins
P6 0/AN0 /SIN2,
I/O port P6
P6 1/AN1 /SOUT2,
P6 2/AN2 /SCLK21,
P6 3/AN3 /SCLK22
•8-bit I/O port with same function as P16 and P17.
•CMOS compatible input level.
•CMOS 3-state output structure.
•A-D conversion input pins
•Serial I/O2 I/O pins
•Pull-up control is enabled.
P64 /AN4–
P67 /AN7
•A-D conversion input pins
P70 /INT0
Input port P7
•1-bit I/O port.
•CMOS compatible input level.
P71 –P77
I/O port P7
•7-bit I/O port with same function as P1 6 and P17.
•Interrupt input pin
•CMOS compatible input level.
•N-channel open-drain output structure.
XCOUT
Sub-clock output
XCIN
Sub-clock input
•Sub-clock generating circuit I/O pins.
(Connect a resonator. External clock cannot be used.)
5
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PART NUMBERING
Product M3827
7
M
8
M
XXX
HP
Package type
FP : 100P6S-A package
HP : 100PFB-A package
GP : 100P6Q-A package
FS : 100D0 package
ROM number
Omitted in some types.
Normally, using hyphen
When electrical characteristic, or division of quality
identification code using alphanumeric character.
– : Standard
M : Low power source version
ROM/PROM size
1 : 4096 bytes
2 : 8192 bytes
3 : 12288 bytes
4 : 16384 bytes
5 : 20480 bytes
6 : 24576 bytes
7 : 28672 bytes
8 : 32768 bytes
9 : 36864 bytes
A : 40960 bytes
B : 45056 bytes
C : 49152 bytes
D : 53248 bytes
E : 57344 bytes
F : 61440 bytes
The first 128 bytes and the last 2 bytes of ROM
are reserved areas ; they cannot be used.
Memory type
M : Mask ROM version
E : EPROM or One Time PROM version
RAM size
0 : 192 bytes
1 : 256 bytes
2 : 384 bytes
3 : 512 bytes
4 : 640 bytes
5 : 768 bytes
6 : 896 bytes
7 : 1024 bytes
8 : 1536 bytes
9 : 2048 bytes
Fig. 4 Part numbering
6
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
GROUP EXPANSION
Package
Mitsubishi plans to expand the 3827 group as follows:
100PFB-A ................................0.4 mm-pitch plastic molded TQFP
100P6Q-A ................................ 0.5 mm-pitch plastic molded LQFP
100P6S-A ................................ 0.65 mm-pitch plastic molded QFP
100D0 ..................... Window type ceramic LCC (EPROM version)
Memory Type
Support for Mask ROM, One Time PROM, and EPROM versions
Memory Size
ROM/PROM size ................................................. 4 K to 60 K bytes
RAM size ............................................................ 192 to 2048 bytes
Memory Expansion Plan
ROM size (bytes)
Under development
M38279EF
60K
56K
52K
Planning
M38278MCM
48K
44K
40K
36K
Under development
M38277M8M
32K
28K
24K
20K
16K
12K
8K
4K
192 256
384
512
640
768
1024
896
1152
1280
1408
1536
1664
1792
1920
2048
RAM size (bytes)
Note: Products under development or planning: the development schedule and specifications
may be revised without notice.
Fig. 5 Memory expansion plan
Currently supported products are listed below.
Table 3 List of supported products
Product
M38277M8MXXXFP
M38277M8MXXXHP
M38277M8MXXXGP
M38279EF-XXXFP
M38279EFFP
M38279EF-XXXHP
M38279EFHP
M38279EF-XXXGP
M38279EFGP
M38279EFFS
As of May 1998
(P) ROM size (bytes)
ROM size for User in ( )
RAM size (bytes)
32768
(32638)
1024
61440
(61310)
2048
Package
100P6S-A
100PFB-A
100P6Q-A
100P6S-A
100P6S-A
100PFB-A
100PFB-A
100P6Q-A
100P6Q-A
100D0
Remarks
Mask ROM version
Mask ROM version
Mask ROM version
One Time PROM version
One Time PROM version (blank)
One Time PROM version
One Time PROM version (blank)
One Time PROM version
One Time PROM version (blank)
EPROM version
7
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
[CPU Mode Register (CPUM)] 003B16
FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
The CPU mode register contains the stack page selection bit and
the internal system clock selection bit.
The CPU mode register is allocated at address 003B16 .
The 3827 group uses the standard 740 family instruction set. Refer to the table of 740 family addressing modes and machine
instructions or the 740 Family Software Manual for details on the
instruction set.
Machine-resident 740 family instructions are as follows:
The FST and SLW instruction cannot be used.
The STP, WIT, MUL, and DIV instruction can be used.
b7
b0
CPU mode register
(CPUM (CM) : address 003B 16)
Processor mode bits
b1 b0
0 0 : Single-chip mode
0 1 :
1 0 : Not available
1 1 :
Stack page selection bit
0 : 0 page
1 : 1 page
Not used (returns “1” when read)
(Do not write “0” to this bit.)
Port XC switch bit
0 : Stop oscillating
1 : XCIN , XCOUT
Main clock ( X IN -XOUT ) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bit
0 : XIN /2 (high-speed mode)
1 : XIN /8 (middle-speed mode)
Internal system clock selection bit
0 : XIN -XOUT selected (middle-/high-speed mode)
1 : XCIN -XCOUT selected (low-speed mode)
Fig. 6 Structure of CPU mode register
8
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MEMORY
Special Function Register (SFR) Area
The Special Function Register area in the zero page contains control registers such as I/O ports and timers.
Zero Page
Access to this area with only 2 bytes is possible in the zero page
addressing mode.
Special Page
RAM
RAM is used for data storage and for stack area of subroutine
calls and interrupts.
Access to this area with only 2 bytes is possible in the special
page addressing mode.
ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is user area for storing programs.
Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
RAM area
000016
RAM size
(bytes)
Address
XXXX16
192
00FF 16
004016
256
013F 16
005416
384
01BF16
512
023F 16
640
02BF16
768
033F 16
896
03BF16
1024
043F 16
1536
063F 16
2048
083F 16
SFR area
LCD display RAM area
Zero page
010016
RAM
XXXX16
Reserved area
084016
Not used
ROM area
ROM size
(bytes)
Address
YYYY16
Address
ZZZZ 16
4096
F000 16
F080 16
8192
E00016
E080 16
12288
D00016
D08016
16384
C00016
C08016
20480
B00016
B080 16
24576
A00016
A080 16
28672
900016
908016
32768
800016
808016
36864
700016
708016
40960
600016
608016
45056
500016
508016
49152
400016
408016
53248
300016
308016
57344
200016
208016
61440
100016
108016
YYYY16
Reserved ROM area
(128 bytes)
ZZZZ 16
ROM
FF0016
FFDC16
Interrupt vector area
Special page
FFFE16
Reserved ROM area
FFFF 16
Fig. 7 Memory map diagram
9
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
000016 Port P0 (P0)
000116 Port P0 direction register (P0D)
002016 Timer X (low) (TXL)
002116 Timer X (high) (TXH)
000216 Port P1 (P1)
000316 Port P1 output control register (P1D)
002216 Timer Y (low) (TYL)
002316 Timer Y (high) (TYH)
000416 Port P2 (P2)
000516 Port P2 direction register (P2D)
002416 Timer 1 (T1)
000616 Port P3 (P3)
000716 Port P3 output control register (P3C)
000816 Port P4 (P4)
000916 Port P4 direction register (P4D)
000A16 Port P5 (P5)
000B16 Port P5 direction register (P5D)
002716 Timer X mode register (TXM)
002816 Timer Y mode register (TYM)
002916 Timer 123 mode register (T123M)
002A16 TOUT /φ output control register (CKCON)
002B16 PWM control register (PWMCON)
000C16 Port P6 (P6)
000D16 Port P6 direction register (P6D)
002C16 PWM prescaler (PREPWM)
000E16 Port P7 (P7)
000F16 Port P7 direction register (P7D)
002E16
001016
003016
001116
003116 A-D control register (ADCON)
001216
003216 A-D control register (low-order) (ADL)
003316 A-D control register (high-order) (ADH)
001316
002D16 PWM register (PWM)
002F 16
001516 Key input control register (KIC)
003416 D-A1 conversion register (DA1)
003516 D-A2 conversion register (DA2)
001616 PULL register A (PULLA)
001716 PULL register B (PULLB)
003616 D-A control register (DACON)
003716 Watchdog timer control register (WDTCON)
001816 Transmit/Receive buffer register(TB/RB)
001916 Serial I/O1 status register (SIO1STS)
003816 Segment output enable register (SEG)
001416
001A16 Serial I/O1 control register (SIO1CON)
001B16 UART control register (UARTCON)
003916 LCD mode register (LM)
003A16 Interrupt edge selection register (INTEDGE)
003B16 CPU mode register (CPUM)
001C16 Baud rate generator (BRG)
001D16 Serial I/O2 control register (SIO2CON)
003C16 Interrupt request register 1(IREQ1)
003D16 Interrupt request register 2(IREQ2)
001E16 Reserved area
001F16 Serial I/O2 register (SIO2)
003E16 Interrupt control register 1(ICON1)
003F 16 Interrupt control register 2(ICON2)
Fig. 8 Memory map of special function register (SFR)
10
002516 Timer 2 (T2)
002616 Timer 3 (T3)
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
I/O PORTS
Direction Registers
The I/O ports have direction registers which determine the input/
output direction of each individual pin. (P00–P07 and P10 –P15 use
bit 0 of port P0, P1 direction registers respectively.)
When “1” is written to that bit, that pin becomes an output pin.
When “0” is written to the bit corresponding to a pin, that pin becomes an input pin.
If data is read from a pin set to output, the value of the port output
latch is read, not the value of the pin itself. Pins set to input are
floating and the value of that pin can be read. If a pin set to input
is written to, only the port output latch is written to and the pin remains floating.
Port P3 Output Control Register
Bit 0 of the port P3 output control register (address 000716) enables control of the output of ports P3 0 to P37.
When the bit is set to “1”, the port output function is valid.
When resetting, bit 0 of the port P3 output control register is set to
“0” (the port output function is invalid.) and ports P30 to P37 are
pulled up.
Pull-up Control
By setting the PULL register A (address 001616 ) or the PULL register B (address 001716 ), ports P0 to P6 can control pull-up with a
program.
However, the contents of PULL register A and PULL register B do
not affect ports programmed as the output ports.
The PULL register A setting is invalid for pins set to segment output on the segment output enable register.
b7
b0
PULL register A
(PULLA : address 0016 16)
P00 , P01 pull-up
P02 ,P03 pull-up
P04 –P07 pull-up
P10 –P13 pull-up
P14 ,P15 pull-up
P16 ,P17 pull-up
P20 –P23 pull-up
P24 –P27 pull-up
b7
b0
PULL register B
(PULLB : address 0017 16)
P41 –P43 pull-up
P44 –P47 pull-up
P50 –P53 pull-up
P54 –P57 pull-up
P60 –P63 pull-up
P64 –P67 pull-up
Not used (return “0” when read)
0 : No pull-up
1 : Pull-up
Note : The contents of PULL register A and PULL register B
do not affect ports programmed as the output port.
Fig. 9 Structure of PULL register A and PULL register B
11
MITSUBISHI MICROCOMPUTERS
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Table 4 List of I/O port function (1)
Pin
Name
P00 /SEG26 –
P07 /SEG33
Por t P0
Input/output,
byte unit
CMOS compatible
input level
CMOS 3-state output
LCD segment output
PULL register A
Segment output enable
register
P10 /SEG34 –
P15 /SEG39
Por t P1
Input/output,
6-bit unit
CMOS compatible
input level
CMOS 3-state output
LCD segment output
PULL register A
Segment output enable
register
(1)
(2)
Input/output,
individual bits
CMOS compatible
input level
CMOS 3-state output
PULL register A
(4)
Input/output,
individual bits
CMOS compatible
input level
CMOS 3-state output
Key input (key-on
wake-up) interrupt
input
PULL register A
(4)
P16 , P17
P20 –P27
Port P2
Input/Output
I/O Format
Non-Port Function
Related SFRs
Diagram No.
(1)
(2)
Interrupt control register2
Key input control register
P30 /SEG18 –
P37 /SEG25
Por t P3
Output
CMOS 3-state output
LCD segment output
PULL register A
Segment output enable
register
P3 output enable register
(3)
P40 /ADT
Por t P4
Input/output,
individual bits
CMOS compatible
input level
N-channel open-drain
output
A-D trigger input
External interrupt input
A-D control register
Interrupt edge selection
register
(13)
CMOS compatible
input level
CMOS 3-state output
External interrupt input
PULL register B
Interrupt edge selection
register
(4)
Timer output φ output
PULL register B
P41 /INT1 ,
P42 /INT2
P43/φ/T OUT
(12)
Timer 123 mode register
TOUT/φ output control
register
Serial I/O1 function I/O
P44 /RXD,
P45 /TXD,
P46 /SCLK1 ,
P47 /SRDY1
P50 /PWM0,
P51 /PWM1
Port P5
Input/output,
individual bits
CMOS compatible
input level
CMOS 3-state output
PWM output
PULL register B
Serial I/O1 control register
Serial I/O1 status register
UART control register
PULL register B
PWM control register
(5)
(6)
(7)
(8)
(10)
Real time port
function output
PULL register B
Timer X mode register
(9)
P54 /CNTR0
Timer X function I/O
PULL register B
Timer X mode register
(11)
P55 /CNTR1
Timer Y function input
PULL register B
Timer Y mode register
(14)
P56 /DA1
DA1 output
A-D VREF input
PULL register B
D-A control register
A-D control register
(15)
P57 /DA2
DA2 output
PULL register B
D-A control register
(15)
P52 /RTP0 ,
P53 /RTP1
12
MITSUBISHI MICROCOMPUTERS
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 5 List of I/O port function (2)
Pin
P60 /SIN2/AN0
Name
Por t P6
P61 /SOUT2/
AN 1
Input/Output
Input/
output,
individnal
bits
I/O Format
CMOS compatible input
level
CMOS 3-state output
Non-Port Function
A-D conversion input
Serial I/O2 function I/O
Related SFRS
Diagram No.
A-D control register
Serial I/O2 control
register
(17)
(18)
P62 /SCLK21/
AN 2
(19)
P63 /SCLK22 /
AN 3
(20)
P64 /AN4–
P67 /AN7
P70 /INT0
Por t P7
P71 –P77
Input
CMOS compatible input
level
Input/
output,
individnal
bits
CMOS compatible input
level
N-channel open-drain
output
COM0–COM3
Common
Output
LCD common output
SEG 0–SEG17
Segment
Output
LCD segment output
A-D conversion input
A-D control register
(16)
External interrupt input
Interrupt edge
selection register
(23)
(13)
LCD mode register
(21)
(22)
Notes1: How to use double-function ports as function I/O ports, refer to the applicable sections.
2: Make sure that the input level at each pin is either 0 V or VCC during execution of the STP instruction. When an input level is at an intermediate potential, a current will flow VCC to V SS through the input-stage gate.
13
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(1) Ports P01–P07, P11–P15
Pull-up
VL2/VL3/VCC
Segment/Port
LCD drive timing
Segment data
Interface logic level
shift circuit
Port latch
Data bus
Segment
Port direction register
VL1/VSS
Port
Port/Segment
Port direction register
(2) Ports P00, P10
Pull-up
VL2/VL3/VCC
Segment/Port
LCD drive timing
Direction register
Segment data
Data bus
Interface logic level
shift circuit
Port latch
Segment
Port/Segment
Port direction register
VL1/VSS
Port
(3) Port P3
Pull-up
LCD drive timing
VL2/VL3/VCC
Segment/Port
Interface logic level
shift circuit
Segment
Segment data
Data bus
Port latch
Port/Segment
Output control
(4) Ports P16, P17, P2, P41, P42
Pull-up control
VL1/VSS
Port
(5) Port P44
Serial I/O1 enable bit
Reception enable bit
Direction register
Data bus
Port latch
Except P16, P17
Fig. 10 Port block diagram (1)
14
Direction register
Data bus
Key input interrupt input
INT1, INT2 interrupt input
Pull-up control
Port latch
Serial I/O1 input
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(6) Port P45
(7) Port P46
Pull-up control
P45/TxD P-channel output disable bit
Serial I/O1 enable bit
Transmission enable bit
Serial I/O1 clock
selection bit
Serial I/O1 enable bit
Serial I/O1 mode selection bit
Serial I/O1 enable bit
Direction register
Direction register
Port latch
Data bus
Pull-up control
Data bus
Serial I/O1 output
Port latch
Serial I/O1 clock outupt
Serial I/O1 clock input
(8) Port P47
(9) Ports P52, P53
Serial I/O1 mode selection bit
Serial I/O1 enable bit
SRDY1 output enable bit
Pull-up control
Pull-up control
Direction register
Direction register
Data bus
Data bus
Port latch
Port latch
Real time control bit
Real time port data
Serial I/O1 ready output
(11) Port P54
(10) Ports P50,P51
Pull-up control
Pull-up control
Direction register
Direction register
Data bus
Data bus
Port latch
Port latch
Pulse output mode
Timer output
PWM function enable bit
PWM output
CNTR0 interrupt input
Fig. 11 Port block diagram (2)
15
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(13) Ports P40, P71–P77
(12) Port P43
Pull-up control
Direction register
Direction register
Data bus
Data bus
Port latch
TOUT/φ output control
Timer output
TOUT/φ selection bit
φ output
Port latch
A-D trigger input
Except P71 to P77
(15) Ports P56, P57
(14) Port P55
Pull-up control
Pull-up control
Direction register
Direction register
Data bus
Data bus
Port latch
Port latch
CNTR1 interrupt input
Except P57
D-A conversion output
D-A1, D-A2 output enable bit
VREF input switch
VREF input selection bit
(17) Port P60
(16) Ports P64–P67
Pull-up control
Pull-up control
Direction register
Direction register
Data bus
Port latch
A-D conversion input
Analog input pin selection bit
Data bus
Port latch
Serial I/O2 input
A-D conversion input
Analog input pin selection bit
Fig. 12 Port block diagram (3)
16
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(18) Port P61
(19) Port P62
P61/SOUT2 P-channel output disable bit
Serial I/O2 transmit completion signal
Synchronous clock selection bit
Serial I/O2 port selection bit
Pull-up control
Serial I/O2 port selection bit
Synchronous clock output pin
selection bit
Direction register
Data bus
Pull-up control
Synchronous clock selection bit
Direction register
Port latch
Data bus
Serial I/O2 output
A-D conversion input
Analog input pin selection bit
Port latch
Serial I/O2 clock output
Serial I/O2 clock input
A-D conversion input
Analog input pin selection bit
(20) Port P63
Pull-up control
(21) COM0–COM3
Synchronous clock selection bit
Serial I/O2 port selection bit
Synchronous clock output pin selection bit
VL3
Direction register
Data bus
VL2
Port latch
The gate input signal of each
transistor is controlled by the
LCD duty ratio and the bias
value.
VL1
Serial I/O2 clock output
VSS
A-D conversion input
Analog input pin selection bit
(23) Port P70
(22) SEG0–SEG17
Direction register
VL2/VL3
The voltage applied to the sources of
P-channel and N-channel transistors
is the controlled voltage by the bias
value.
Data bus
Port latch
VL1/VSS
INT0 input
Fig. 13 Port block diagram (4)
17
MITSUBISHI MICROCOMPUTERS
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
INTERRUPTS
Interrupt Operation
Interrupts occur by seventeen sources: seven external, nine internal, and one software.
Upon acceptance of an interrupt the following operations are automatically performed:
1. The contents of the program counter and processor status
register are automatically pushed onto the stack.
2. The interrupt disable flag is set and the corresponding
interrupt request bit is cleared.
3. The interrupt jump destination address is read from the vector table into the program counter.
Interrupt Control
Each interrupt except the BRK instruction interrupt have both an
interrupt request bit and an interrupt enable bit, and is controlled
by the interrupt disable flag. An interrupt occurs if the corresponding interrupt request and enable bits are “1” and the interrupt
disable flag is “0.” Interrupt enable bits can be set or cleared by
software. Interrupt request bits can be cleared by software, but
cannot be set by software. The BRK instruction interrupt and reset
cannot be disabled with any flag or bit. The I flag disables all interrupts except the BRK instruction interrupt and reset. If several
interrupts requests occurs at the same time the interrupt with highest priority is accepted first.
■Notes
When the active edge of an external interrupt (INT0–INT2, CNTR0 ,
CNTR1 ) is set or when switching interrupt sources of ADT/A-D
conversion interrupt, the corresponding interrupt request bit may
also be set. Therefore, take following sequence:
(1) Disable the external interrupt which is selected.
(2) Change the active edge in interrupt edge selection register
(timer XY mode register when using CNTR0 , CNTR1)
(3) Clear the set interrupt request bit to “0.”
(4) Enable the external interrupt which is selected.
Table 6 Interrupt vector addresses and priority
Interrupt Source
Priority
Vector Addresses (Note 1)
High
Low
Interrupt Request
Generating Conditions
At reset
At detection of either rising or
falling edge of INT0 input
At detection of either rising or
falling edge of INT1 input
Remarks
Reset (Note 2)
INT 0
1
2
FFFD 16
FFFB16
FFFC16
FFFA16
INT 1
3
FFF916
FFF816
Serial I/O1
reception
4
FFF716
FFF616
Serial I/O1
transmission
5
FFF516
FFF416
Timer X
6
FFF316
FFF216
Timer Y
Timer 2
Timer 3
CNTR 0
7
8
9
10
FFF116
FFEF16
FFED16
FFEB 16
FFF016
FFEE16
FFEC16
FFEA16
CNTR 1
11
FFE916
FFE816
At detection of either rising or
falling edge of CNTR1 input
Timer 1
INT 2
12
13
FFE716
FFE516
FFE616
At timer 1 underflow
FFE416
External interrupt
(active edge selectable)
Serial I/O2
14
FFE316
FFE216
At detection of either rising or
falling edge of INT2 input
At completion of serial I/O2 data
transmission or reception
Key input
(Key-on wake-up)
15
FFE116
FFE016
At falling of conjunction of input
level for port P2 (at input mode)
ADT
16
FFDF 16
FFDE16
At falling of ADT input
External interrupt
(valid when an “L” level is applied)
Valid when ADT interrupt is selected External interrupt
(Valid at falling)
A-D conversion
BRK instruction
At completion of serial I/O1 data
reception
At completion of serial I/O1
transmit shift or when transmission buffer is empty
At timer X underflow
At timer Y underflow
At timer 2 underflow
At timer 3 underflow
At detection of either rising or
falling edge of CNTR0 input
At completion of A-D conversion
17
FFDD 16
FFDC16
At BRK instruction execution
Notes1: Vector addresses contain interrupt jump destination addresses.
2: Reset function in the same way as an interrupt with the highest priority.
18
Non-maskable
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
Valid when serial I/O1 is selected
Valid when serial I/O1 is selected
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
Valid when serial I/O2 is selected
Valid when A-D interrupt is selected
Non-maskable software interrupt
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Interrupt request bit
Interrupt enable bit
Interrupt disable flag (I)
Interrupt request
BRK instruction
Reset
Fig. 14 Interrupt control
b7
b0
Interrupt edge selection register
(INTEDGE : address 003A 16)
INT0 interrupt edge selection bit
INT1 interrupt edge selection bit
INT2 interrupt edge selection bit
INT3 interrupt edge selection bit
Not used (return “0” when read)
b7
b0
0 : Falling edge active
1 : Rising edge active
Interrupt request register 1
(IREQ1 : address 003C 16)
b7
b0
INT0 interrupt request bit
INT1 interrupt request bit
Serial I/O1 receive interrupt request bit
Serial I/O1 transmit interrupt request bit
Timer X interrupt request bit
Timer Y interrupt request bit
Timer 2 interrupt request bit
Timer 3 interrupt request bit
Interrupt request register 2
(IREQ2 : address 003D 16)
CNTR0 interrupt request bit
CNTR1 interrupt request bit
Timer 1 interrupt request bit
INT2 interrupt request bit
Serial I/O2 interrupt request bit
Key input interrupt request bit
ADT/AD conversion interrupt request bit
Not used (returns “0” when read)
0 : No interrupt request issued
1 : Interrupt request issued
b7
b0
Interrupt control register 1
(ICON1 : address 003E 16)
INT0 interrupt enable bit
INT1 interrupt enable bit
Serial I/O receive interrupt enable bit
Serial I/O transmit interrupt enable bit
Timer X interrupt enable bit
Timer Y interrupt enable bit
Timer 2 interrupt enable bit
Timer 3 interrupt enable bit
b7
b0
Interrupt control register 2
(ICON2 : address 003F 16 )
CNTR0 interrupt enable bit
CNTR1 interrupt enable bit
Timer 1 interrupt enable bit
INT2 interrupt enable bit
Serial I/O2 interrupt enable bit
Key input interrupt enable bit
ADT/AD conversion interrupt enable bit
Not used (returns “0” when read)
(Do not write “1” to this bit.)
0 : Interrupts disabled
1 : Interrupts enabled
Fig. 15 Structure of interrupt-related registers
19
MITSUBISHI MICROCOMPUTERS
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Key Input Interrupt (Key-on wake-up)
A Key-on wake up interrupt request is generated by applying “L”
level to any pin of port P2 that have been set to input mode. In
other words, it is generated when AND of input level goes from “1”
to “0”. An example of using a key input interrupt is shown in Figure
16, where an interrupt request is generated by pressing one of the
keys consisted as an active-low key matrix which inputs to ports
P20–P23.
Port PXx
“L” level output
✽
Port P27 output
✽
Port P26 output
✽
Port P25 output
✽
Port P24 output
✽
Port P23
input
✽
Port P22
input
✽
Port P21
input
✽
Port P20
input
PULLA register
Key input control register = “1”
Bit 2 = “1”
Port P27
direction register = “1”
✽✽
Port P27
latch
Key input interrupt request
Key input control register = “1”
Port P26
direction register = “1”
✽✽
Port P26
latch
Key input control register = “1”
Port P25
direction register = “1”
✽✽
Port P25
latch
Key input control register = “1”
Port P24
direction register = “1”
✽✽
Port P24
latch
Key input control register = “1”
Port P23
direction register = “0”
✽✽ Port P23
latch
Port P2 input
reading circuit
Key input control register = “1”
Port P22
direction register = “0”
✽✽ Port P22
latch
Key input control register = “1”
Port P21
direction register = “0”
✽✽ Port P21
latch
Key input control register = “1”
Port P20
direction register = “0”
✽✽ Port P20
latch
✽ P-channel transistor for pull-up
✽✽ CMOS output buffer
Fig. 16 Connection example when using key input interrupt and port P2 block diagram
20
MITSUBISHI MICROCOMPUTERS
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
responding to that timer is set to “1”.
Read and write operation on 16-bit timer must be performed for
both high and low-order bytes. When reading a 16-bit timer, read
the high-order byte first. When writing to a 16-bit timer, write the
low-order byte first. The 16-bit timer cannot perform the correct operation when reading during the write operation, or when writing
during the read operation.
TIMERS
The 3827 group has five timers: timer X, timer Y, timer 1, timer 2,
and timer 3. Timer X and timer Y are 16-bit timers, and timer 1,
timer 2, and timer 3 are 8-bit timers.
All timers are down count timers. When the timer reaches “0016”,
an underflow occurs at the next count pulse and the corresponding timer latch is reloaded into the timer and the count is
continued. When a timer underflows, the interrupt request bit cor-
Real time port
control bit “1”
Data bus
Q D
P52 data for real time port
Latch
“0”
P52 latch
Real time port
control bit “1”
Q D
P53 data for real time port
P52
P52 direction register
P53
Real time port
control bit “0”
Latch
“0”
P53 direction register
P53 latch
Timer X mode register
write signal
“1”
f(X IN )/16
(f(XIN )/16 in low-speed mode ✽ )
P54/CNTR0
Timer X stop
control bit
Timer X operating mode bits
“00”,“01”,“11”
CNTR0 active
edge switch bit
“0”
“10”
“1”
Pulse width
measurement
mode
CNTR0 active
edge switch bit “0”
“1”
P54 direction register
Timer X write
control bit
Timer X (low) latch (8)
Timer X (high) latch (8)
Timer X (low) (8)
Timer X (high) (8)
CNTR0
interrupt
request
Pulse output mode
QS
Timer Y operating mode bit
“00”,“01”,“10”
T
Q
Pulse width HL continuously measurement mode
P54 latch
Period
measurement mode
Falling edge detection
f(XIN )/16
(f(XCIN)✕16 in φ = XCIN divided by 2)
P55 /CNTR1
Timer Y stop
control bit
“00”,“01”,“11”
Timer Y (low) latch (8)
Timer Y (high) latch (8)
Timer Y (low) (8)
Timer Y (high) (8)
“10” Timer Y operating
mode bit
“1”
f(XIN )/16
(f(XCIN )/16 in φ = XCIN divided by 2)
Timer 1 count source
selection bit
“0”
Timer 1 latch (8)
Timer 2 count source
selection bit
Timer 2 latch (8)
“0”
Timer 1 (8)
XCIN
CNTR1
interrupt
request
“11”
Rising edge detection
Pulse output mode
CNTR1 active
edge switch bit
“0”
Timer X
interrupt
request
“1”
Timer 2 (8)
“1”
Timer 2 write
control bit
Timer Y
interrupt
request
Timer 1
interrupt
request
Timer 2
interrupt
request
f(XIN)/16
(f(XCIN )✕16 in φ=XCIN divided by 2)
TOUT output TOUT output
active edge control bit
TOUT output switch bit
control bit
“0”
QS
P43 /φ/TOUT
T
“1”
P43 latch
Q
P43 direction register
f(X IN )/16(f(XCIN )/16 in low-speed mode ✽)
“0”
Timer 3 latch (8)
Timer 3 (8)
“1”
Timer 3 count
source selection bit
Timer 3
interrupt
request
Fig. 17 Timer block diagram
21
MITSUBISHI MICROCOMPUTERS
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Timer X
Timer X is a 16-bit timer that can be selected in one of four modes
and can be controlled the timer X write and the real time port by
setting the timer X mode register.
(1) Timer Mode
The timer counts f(XIN)/16 (or f(X CIN)/16 in low-speed mode).
(2) Pulse Output Mode
Each time the timer underflows, a signal output from the CNTR0
pin is inverted. Except for this, the operation in pulse output mode
is the same as in timer mode. When using a timer in this mode, set
the port shared with the CNTR0 pin to input.
■Note on CNTR 0 interrupt active edge
selection
CNTR0 interrupt active edge depends on the CNTR0 active edge
switch bit.
●Real time port control
While the real time port function is valid, data for the real time port
are output from ports P5 2 and P53 each time the timer X
underflows. (However, if the real time port control bit is changed
from “0” to “1”, data are output without the timer X.) When the data
for the real time port is changed while the real time port function is
valid, the changed data are output at the next underflow of timer X.
Before using this function, set the corresponding port direction
registers to output mode.
(3) Event Counter Mode
The timer counts signals input through the CNTR0 pin.
Except for this, the operation in event counter mode is the same
as in timer mode. When using a timer in this mode, set the port
shared with the CNTR 0 pin to input.
(4) Pulse Width Measurement Mode
The count source is f(XIN)/16 (or f(XCIN)/16 in low-speed mode). If
CNTR0 active edge switch bit is “0”, the timer counts while the input signal of CNTR0 pin is at “H”. If it is “1”, the timer counts while
the input signal of CNTR0 pin is at “L”. When using a timer in this
mode, set the port shared with tha CNTR0 pin to input.
●Timer X write control
If the timer X write control bit is “0”, when the value is written in the
address of timer X, the value is loaded in the timer X and the latch
at the same time.
If the timer X write control bit is “1”, when the value is written in the
address of timer X, the value is loaded only in the latch. The value
in the latch is loaded in timer X after timer X underflows.
If the value is written in latch only, unexpected value may be set in
the high-order counter when the writing in high-order latch and the
underflow of timer X are performed at the same timing.
b7
b0
Timer X mode register
(TXM : address 0027 16)
Timer X write control bit
0 : Write value in latch and counter
1 : Write value in latch only
Real time port control bit
0 : Real time port function invalid
1 : Real time port function valid
P52 data for real time port
P53 data for real time port
Timer X operating mode bits
b5 b4
0 0 : Timer mode
0 1 : Pulse output mode
1 0 : Event counter mode
1 1 : Pulse width measurement mode
CNTR0 active edge switch bit
0 : Count at rising edge in event counter mode
Start from “H” output in pulse output mode
Measure “H” pulse width in pulse width
measurement mode
Falling edge active for CNTR 0 interrupt
1 : Count at falling edge in event counter mode
Start from “L” output in pulse output mode
Measure “L” pulse width in pulse width
measurement mode
Rising edge active for CNTR 0 interrupt
Timer X stop control bit
0 : Count start
1 : Count stop
Fig. 18 Structure of timer X mode register
22
MITSUBISHI MICROCOMPUTERS
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Timer Y
Timer Y is a 16-bit timer that can be selected in one of four modes.
(1) Timer Mode
The timer counts f(XIN)/16 (or f(X CIN)/16 in low-speed mode).
(2) Period Measurement Mode
CNTR 1 interrupt request is generated at rising/falling edge of
CNTR1 pin input signal. Simultaneously, the value in timer Y latch
is reloaded in timer Y and timer Y continues counting down. Except
for the above-mentioned, the operation in period measurement
mode is the same as in timer mode.
The timer value just before the reloading at rising/falling of CNTR1
pin input signal is retained until the timer Y is read once after the
reload.
The rising/falling timing of CNTR 1 pin input signal is found by
CNTR1 interrupt. When using a timer in this mode, set the por t
shared with the CNTR 1 pin to input.
(3) Event Counter Mode
The timer counts signals input through the CNTR1 pin.
Except for this, the operation in event counter mode is the same
as in timer mode. When using a timer in this mode, set the port
shared with the CNTR 1 pin to input.
b7
b0
Timer Y mode register
(TYM : address 0028 16)
Not used (return “0” when read)
Timer Y operating mode bits
b5 b4
0 0 : Timer mode
0 1 : Period measurement mode
1 0 : Event counter mode
1 1 : Pulse width HL continuously
measurement mode
CNTR1 active edge switch bit
0 : Count at rising edge in event counter mode
Measure the falling edge to falling edge
period in period measurement mode
Falling edge active for CNTR 1 interrupt
1 : Count at falling edge in event counter mode
Measure the rising edge period in period
measurement mode
Rising edge active for CNTR 1 interrupt
Timer Y stop control bit
0 : Count start
1 : Count stop
Fig. 19 Structure of timer Y mode register
(4) Pulse Width HL Continuously Measurement
Mode
CNTR1 interrupt request is generated at both rising and falling
edges of CNTR1 pin input signal. Except for this, the operation in
pulse width HL continuously measurement mode is the same as in
period measurement mode. When using a timer in this mode, set
the port shared with the CNTR1 pin to input.
■Note on CNTR1 interrupt active edge selection
CNTR 1 interrupt active edge depends on the CNTR1 active edge
switch bit. However, in pulse width HL continuously measurement
mode, CNTR 1 interrupt request is generated at both rising and
falling edges of CNTR1 pin input signal regardless of the setting of
CNTR1 active edge switch bit.
23
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Timer 1, Timer 2, Timer 3
Timer 1, timer 2, and timer 3 are 8-bit timers. The count source for
each timer can be selected by timer 123 mode register. The timer
latch value is not affected by a change of the count source. However, because changing the count source may cause an
inadvertent count down of the timer. Therefore, rewrite the value of
timer whenever the count source is changed.
●Timer 2 write control
If the timer 2 write control bit is “0”, when the value is written in the
address of timer 2, the value is loaded in the timer 2 and the latch
at the same time.
If the timer 2 write control bit is “1”, when the value is written in the
address of timer 2, the value is loaded only in the latch. The value
in the latch is loaded in timer 2 after timer 2 underflows.
●Timer 2 output control
When the timer 2 (TOUT) is output enabled, an inversion signal
from the TOUT pin is output each time timer 2 underflows.
In this case, set the port shared with the TOUT pin to the output.
■Notes on timer 1 to timer 3
When the count source of timer 1 to 3 is changed, the timer counting value may be changed large because a thin pulse is generated
in count input of timer . If timer 1 output is selected as the count
source of timer 2 or timer 3, when timer 1 is written, the counting
value of timer 2 or timer 3 may be changed large because a thin
pulse is generated in timer 1 output.
Therefore, set the value of timer in the order of timer 1, timer 2 and
timer 3 after the count source selection of timer 1 to 3.
24
b7
b0
Timer 123 mode register
(T123M :address 0029 16)
TOUT output active edge switch bit
0 : Start at “H” output
1 : Start at “L” output
TOUT /φ output control bit
0 : T OUT /φ output disabled
1 : T OUT /φ output enabled
Timer 2 write control bit
0 : Write data in latch and counter
1 : Write data in latch only
Timer 2 count source selection bit
0 : Timer 1 output
1 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode)
Timer 3 count source selection bit
0 : Timer 1 output
1 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode)
Timer 1 count source selection bit
0 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode)
1 : f(XCIN )
Not used (return “0” when read)
Note : Internal clock φ is XCIN /2 in the low-speed mode.
Fig. 20 Structure of timer 123 mode register
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(1) Clock Synchronous Serial I/O Mode
SERIAL I/O
Serial I/O1
Serial I/O1 can be used as either clock synchronous or asynchronous (UART) serial I/O. A dedicated timer (baud rate generator) is
also provided for baud rate generation.
Clock synchronous serial I/O1 can be selected by setting the
mode selection bit of the serial I/O1 control register to “1”.
For clock synchronous serial I/O1, the transmitter and the receiver
must use the same clock. If an internal clock is used, transfer is
started by a write signal to the transmit/receive buffer registers.
Data bus
Serial I/O1 control register
Address 0018 16
Receive buffer register
Receive shift register
P44/RXD
Address 001A16
Receive buffer full flag (RBF)
Receive interrupt request (RI)
Shift clock
Clock control circuit
P46/SCLK
Serial I/O1
clock selection bit
Frequency division ratio 1/(n+1)
Baud rate generator
1/4
Address 001C 16
BRG count source selection bit
f(XIN )
(f(XCIN ) in low-speed mode)
1/4
P47/SRDY1
F/F
Clock control circuit
Falling-edge detector
Transmit shift register shift completion flag (TSC)
Transmit interrupt source selection bit
Transmit interrupt request (TI)
Shift clock
P45 /TXD
Transmit shift register
Transmit buffer register
Address 0018 16
Transmit buffer empty flag (TBE)
Address 0019 16
Serial I/O1 status register
Data bus
Fig. 21 Block diagram of clock synchronous serial I/O1
Transfer shift clock
(1/2 to 1/2048 of the internal
clock, or an external clock)
Serial output T XD
D0
D1
D2
D3
D4
D5
D6
D7
Serial input R XD
D0
D1
D2
D3
D4
D5
D6
D7
Receive enable signal S RDY1
Write signal to receive/transmit
buffer register (address 0018 16)
TBE = 0
TBE = 1
TSC = 0
RBF = 1
TSC = 1
Overrun error (OE)
detection
Notes 1 : The transmit interrupt (TI) can be selected to occur either when the transmit buffer register has emptied (TBE=1)
or after the transmit shift operation has ended (TSC=1), by setting the transmit interrupt source selection bit (TIC) of the
serial I/O1 control register.
2 : If data is written to the transmit buffer register when TSC=0, the transmit clock is generated continuously and serial data is
output continuously from the T XD pin.
3 : The receive interrupt (RI) is set when the receive buffer full flag (RBF) becomes “1” .
Fig. 22 Operation of clock synchronous serial I/O1 function
25
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
ter, but the two buffers have the same address in memory. Since
the shift register cannot be written to or read from directly, transmit
data is written to the transmit buffer, and receive data is read from
the receive buffer.
The transmit buffer can also hold the next data to be transmitted,
and the receive buffer register can hold a character while the next
character is being received.
(2) Asynchronous Serial I/O (UART) Mode
Clock asynchronous serial I/O mode (UART) can be selected by
clearing the serial I/O mode selection bit of the serial I/O1 control
register to “0”.
Eight serial data transfer formats can be selected, and the transfer
formats used by a transmitter and receiver must be identical.
The transmit and receive shift registers each have a buffer regis-
Data bus
Address 0018 16
P44 /RXD
Serial I/O1 control register
Receive buffer register
OE
Character length selection bit
7 bits
STdetector
Receive shift register
Address 001A 16
Receive buffer full flag (RBF)
Receive interrupt request (RI)
1/16
8 bits
UART control register
Address 001B 16
SP detector
PE FE
Clock control circuit
Serial I/O synchronous clock selection bit
P46 /SCLK
BRG count source selection bit
f(XIN )
(f(XCIN) in low-speed mode)
1/4
Frequency division ratio 1/(n+1)
Baud rate generator
Address 001C 16
ST/SP/PA generator
Transmit shift register shift completion flag (TSC)
1/16
P45 /TXD
Transmit shift register
Transmit interrupt source selection bit
Transmit interrupt request (TI)
Character length selection bit
Transmit buffer register
Address 0018 16
Transmit buffer empty flag (TBE)
Serial I/O status register Address 0019 16
Data bus
Fig. 23 Block diagram of UART serial I/O1
Transmit or receive clock
Transmit buffer write signal
TBE=0
TSC=0
TBE=1
Serial output T XD
TBE=0
TSC=1 ✽
TBE=1
ST
D0
D1
SP
ST
D0
1 start bit
7 or 8 data bits
1 or 0 parity bit
1 or 2 stop bit (s)
Receive buffer read signal
✽Generated
RBF=0
RBF=1
Serial input R XD
ST
D0
D1
D1
SP
ST
D0
D1
SP
at 2nd bit in 2-stop-bit mode
RBF=1
SP
Notes 1 : Error flag detection occurs at the same time that the RBF flag becomes “1” (at 1st stop bit, during reception).
2 : The transmit interrupt (TI) can be selected to occur when either the TBE or TSC flag becomes “1” by the setting of the transmit interrupt source
selection bit (TIC) of the serial I/O1 control register.
3 : The receive interrupt (RI) is set when the RBF flag becomes “1”.
4 : After data is written to the transmit buffer register when TSC=1, 0.5 to 1.5 cycles of the data shift cycle is necessary until changing to TSC=0.
Fig. 24 Operation of UART serial I/O1 function
26
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
[Transmit Buffer/Receive Buffer Register
(TB/RB)] 001816
The transmit buffer register and the receive buffer register are located at the same address. The transmit buffer register is
write-only and the receive buffer register is read-only. If a character bit length is 7 bits, the MSB of data stored in the receive buffer
register is “0”.
[Serial I/O1 Status Register (SIO1STS)]
001916
The read-only serial I/O1 status register consists of seven flags
(bits 0 to 6) which indicate the operating status of the serial I/O
function and various errors.
Three of the flags (bits 4 to 6) are valid only in UART mode.
The receive buffer full flag (bit 1) is cleared to “0” when the receive
buffer is read.
If there is an error, it is detected at the same time that data is
transferred from the receive shift register to the receive buffer register, and the receive buffer full flag is set. A write to the serial I/O1
status register clears all the error flags OE, PE, FE, and SE. Writing “0” to the serial I/O1 enable bit (SIOE) also clears all the status
flags, including the error flags.
All bits of the serial I/O1 status register are initialized to “0” at reset, but if the transmit enable bit (bit 4) of the serial I/O1 control
register has been set to “1”, the transmit shift register shift completion flag (bit 2) and the transmit buffer empty flag (bit 0) become
“1”.
[Serial I/O1 Control Register (SIO1CON)]
001A16
The serial I/O1 control register contains eight control bits for the
serial I/O1 function.
[UART Control Register (UARTCON) ]001B 16
This is a 5 bit register containing four control bits, which are valid
when UART is selected and set the data format of an data receiver/transfer, and one control bit, which is always valid and sets
the output structure of the P4 5/TXD pin.
[Baud Rate Generator(BRG)] 0016 16
The baud rate generator determines the baud rate for serial transfer.
The baud rate generator divides the frequency of the count source
by 1/(n + 1), where n is the value written to the baud rate generator.
27
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
b7
b0
Serial I/O1 status register
(SIO1STS : address 0019 16)
Transmit buffer empty flag (TBE)
0: Buffer full
1: Buffer empty
b0
Serial I/O1 control register
(SIO1CON : address 001A 16)
BRG count source selection bit (CSS)
0: f(XIN) (f(XCIN ) in low-speed mode)
1: f(XIN)/4 (f(X CIN)/4 in low-speed mode)
Transmit shift register shift completion flag (TSC)
0: Transmit shift in progress
1: Transmit shift completed
Overrun error flag (OE)
0: No error
1: Overrun error
SRDY1 output enable bit (SRDY)
0: P47 pin operates as ordinary I/O pin.
1: P47 pin operates as S RDY1 output pin.
Parity error flag (PE)
0: No error
1: Parity error
Transmit interrupt source selection bit (TIC)
0: Interrupt when transmit buffer has emptied
1: Interrupt when transmit shift operation is completed
Framing error flag (FE)
0: No error
1: Framing error
Transmit enable bit (TE)
0: Transmit disabled
1: Transmit enabled
Summing error flag (SE)
0: OE U PE U FE =0
1: OE U PE U FE =1
Receive enable bit (RE)
0: Receive disabled
1: Receive enabled
Not used (returns “1” when read)
Serial I/O1 mode selection bit (SIOM)
0: Asynchronous serial I/O (UART)
1: Clock synchronous serial I/O
UART control register
(UARTCON : address 001B 16)
Character length selection bit (CHAS)
0: 8 bits
1: 7 bits
Parity enable bit (PARE)
0: Parity checking disabled
1: Parity checking enabled
Parity selection bit (PARS)
0: Even parity
1: Odd parity
Stop bit length selection bit (STPS)
0: 1 stop bit
1: 2 stop bits
P45 /TXD P-channel output disable bit (POFF)
0: CMOS output (in output mode)
1: N-channel open-drain output (in output mode)
Not used (return “1” when read)
Fig. 25 Structure of serial I/O1 control registers
28
b0
Serial I/O1 synchronous clock selection bit (SCS)
0: BRG output divided by 4 when clock synchronous serial
I/O is selected.
BRG output divided by 16 when UART is selected.
1: External clock input when clock synchronous serial I/O is
selected.
External clock input divided by 16 when UART is selected.
Receive buffer full flag (RBF)
0: Buffer empty
1: Buffer full
b7
b7
Serial I/O1 enable bit (SIOE)
0: Serial I/O1 disabled
(pins P44 –P47 operate as ordinary I/O pins)
1: Serial I/O1 enabled
(pins P44 –P47 operate as serial I/O pins)
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Serial I/O2
b7
b0
The serial I/O2 function can be used only for clock synchronous
serial I/O.
For clock synchronous serial I/O2 the transmitter and the receiver
must use the same clock. When the internal clock is used, transfer
is started by a write signal to the serial I/O2 register.
When an internal clock is selected as the synchronous clock of the
serial I/O2, either P6 2 or P63 can be selected as an output pin of
the synchronous clock. In this case, the pin that is not selected as
an output pin of the synchronous clock functions as a port.
Serial I/O2 control register
(SIO2CON : address 001D16)
Internal synchronous clock select bits
b2 b1 b0
0 0 0: f(XIN)/8 (f(XCIN)/8 in low-speed mode)
0 0 1: f(XIN)/16 (f(XCIN)/16 in low-speed mode)
0 1 0: f(XIN)/32 (f(XCIN)/32 in low-speed mode)
0 1 1: f(XIN)/64 (f(XCIN)/64 in low-speed mode)
1 0 0:
1 0 1: Do not set
1 1 0: f(XIN)/128 (f(XCIN)/128 in low-speed mode)
1 1 1: f(XIN)/256 (f(XCIN)/256 in low-speed mode)
Serial I/O2 port selection bit
0: I/O port
1: SOUT2,SCLK21/SCLK22 signal output
[Serial I/O2 Control Register (SIO2CON)]
001D16
P61/SOUT2 P-channel output disable bit
0: CMOS output (in output mode)
1: N-channel open-drain output
(in output mode)
The serial I/O2 control register contains 8 bits which control various serial I/O2 functions.
Transfer direction selection bit
0: LSB first
1: MSB first
Synchronous clock selection bit
0: External clock
1: Internal clock
Synchronous clock output pin selection bit
0: SCLK21
1: SCLK22
Fig. 26 Structure of serial I/O2 control register
1/8
Divider
1/16
f(XIN)
(f(XCIN) in low-speed mode)
Internal synchronous
clock select bits
1/32
Data bus
1/64
1/128
1/256
P63 latch
(Note)
P63/SCLK22
Synchronous clock
selection bit
“1”
SCLK2
Synchronous circuit
“0”
External clock
P62 latch
“0”
P62/SCLK21
(Note) “1”
Serial I/O counter 2 (3)
Serial I/O2
interrupt request
P61 latch
“0”
P61/SOUT2
“1”
Serial I/O2 port selection bit
P60/SIN2
Serial I/O shift register 2 (8)
Note: It is selected by the synchronous clock selection bit, the synchronous
clock output pin selection bit, and the serial I/O port selection bit.
Fig. 27 Block diagram of serial I/O2 function
29
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Transfer clock (Note 1)
Serial I/O2 register
write signal
(Note 2)
Serial I/O2 output S OUT2
D0
D1
D2
D3
D4
D5
D6
D7
Serial I/O2 input S IN2
Serial I/O2 interrupt request bit set
Notes 1: When the internal clock is selected as the transfer clock, the divide ratio can be selected by setting bits 0 to 2 of the serial
I/O2 control register.
2: When the internal clock is selected as the transfer clock, the S OUT2 pin goes to high impedance after transfer completion.
When the external clock is selected as the transfer clock, a content of the serial I/O shift register is continued to shift
during inputting a transfer clock. The S OUT2 pin does not go to high impedance after transfer completion.
Fig. 28 Timing of serial I/O2 function
30
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PULSE WIDTH MODULATION (PWM)
PWM Operation
The 3827 group has a PWM function with an 8-bit resolution,
based on a signal that is the clock input XIN or that clock input divided by 2.
When at least either bit 1 (PWM 0 output enable bit) or bit 2 (PWM1
output enable bit) of the PWM control register is set to “1”, operation starts by initializing the PWM output circuit, and pulses are
output starting at an “H”. When one PWM output is enabled and
that the other PWM output is enabled, PWM output which is enabled to output later starts pulse output from halfway.
When the PWM register or PWM prescaler is updated during
PWM output, the pulses will change in the cycle after the one in
which the change was made.
Data Setting
The PWM output pin also functions as ports P50 and P51 . Set the
PWM period by the PWM prescaler, and set the period during
which the output pulse is an “H” by the PWM register.
If PWM count source is f(XIN) and the value in the PWM prescaler
is n and the value in the PWM register is m (where n = 0 to 255
and m = 0 to 255) :
PWM period = 255 ✕ (n+1)/f(XIN)
= 51 ✕ (n+1) µs (when XIN = 5 MHz)
Output pulse “H” period = PWM period ✕ m/255
= 0.2 ✕ (n+1) ✕ m µs
(when XIN = 5 MHz)
51 ✕ m ✕ (n+1)
255
µs
PWM output
T = [51 ✕ (n+1)] µs
m: Contents of PWM register
n : Contents of PWM prescaler
T : PWM cycle (when f(X IN ) = 5 MHz)
Fig. 29 Timing of PWM cycle
Data bus
PWM
prescaler pre-latch
PWM
register pre-latch
PWM1 enable bit
Transfer control circuit
PWM
prescaler latch
PWM
register latch
PWM prescaler
PWM circuit
Count source
selection bit
Port P56
“0”
XIN
1/2
“1”
PWM 0 enable bit
Fig. 30 Block diagram of PWM function
31
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
b0
b7
PWM control register
(PWMCON : address 002B16)
Count source selection bit
0 : f(XIN)
1 : f(XIN)/2
PWM0 function enable bit
0 : PWM0 disabled
1 : PWM0 enabled
PWM1 function enable bit
0 : PWM1 disabled
1 : PWM1 enabled
Not used (return “0” when read)
Fig. 31 Structure of PWM control register
A
PWM
(internal)
C
B
stop
stop
T
T
T2
Port
PWM 0 output
PWM 1 output
Port
Port
Port
PWM register
write signal
(Changes from “A” to “B” during “H” period)
PWM prescaler
write signal
(Changes from “T” to “T2” during PWM period)
PWM 0 function
enable bit
PWM 1 function
enable bit
When the contents of the PWM register or PWM prescaler have changed, the PWM
output will change from the next period after the change.
Fig. 32 PWM output timing when PWM register or PWM prescaler is changed
32
B = C
T2
T
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
A-D CONVERTER
[A-D Conversion Register (AD)] 003516
b7
b0
A-D control register
(ADCON : address 0031 16 )
The A-D conversion register is a read-only register that contains
the result of an A-D conversion. During A-D conversion, do not
read this register.
Analog input pin selection bits
0 0 0 : P60 /SIN2 /AN0
0 0 1 : P61 /SOUT2 /AN1
0 1 0 : P62 /SCLK21 /AN2
0 1 1 : P63 /SCLK22 /AN3
1 0 0 : P64 /AN4
1 0 1 : P65 /AN5
1 1 0 : P66 /AN6
1 1 1 : P67 /AN7
AD conversion completion bit
0 : Conversion in progress
1 : Conversion completed
VREF input switch bit
0 : OFF
1 : ON
AD external trigger valid bit
0 : A-D external trigger invalid
1 : A-D external trigger valid
Interrupt source selection bit
0 : Interrupt request at A-D
conversion completed
1 : Interrupt request at ADT
input rising or falling
Reference voltage input selection bit
0 : V REF
1 : P5 6 /DA1
[A-D Control Register (ADCON)] 0034 16
The A-D control register controls the A-D conversion process. Bits
0 to 2 are analog input pin selection bits. Bit 3 is an A-D conversion completion bit and “0” during A-D conversion, then changes
to “1” when the A-D conversion is completed. Writing “0” to this bit
starts the A-D conversion. Bit 4 controls the transistor which
breaks the through current of the resistor ladder. When bit 5, which
is the AD external trigger valid bit, is set to “1”, A-D conversion is
started even by a rising edge or falling edge of an ADT input. Set
ports which share with ADT pins to input when using an A-D external trigger.
[Comparison Voltage Generator]
The comparison voltage generator divides the voltage between
AVSS and VREF, and outputs the divided voltages.
8-bit read (Read only address 0032 16.)
b7
[Channel Selector]
The channel selector selects one of the input ports P6 7/AN7–P6 0/
AN 0, and inputs it to the comparator.
(Address 0032 16)
b0
b9 b8 b7 b6 b5 b4 b3 b2
10-bit read (Read address 0033 16 first.)
b7
[Comparator and Control Circuit]
The comparator and control circuit compares an analog input voltage with the comparison voltage and stores the result in the A-D
conversion register. When an A-D conversion is completed, the
control circuit sets the AD conversion completion bit and the AD
interrupt request bit to “1”.
Note that the comparator is constructed linked to a capacitor, so
set f(XIN) to at least 500 kHz during A-D conversion.
Use a clock divided the main clock XIN as the internal clock φ.
b0
(Address 003316 )
b9 b8
b7
(Address 0032 16)
b0
b7 b6 b5 b4 b3 b2 b1 b0
Note: High-order 6 bits of address 0033 16 becomes “0” at reading.
Fig. 33 Structure of A-D control register
Data bus
b0
b7
A-D control register
P40/ADT
3
A-D control register
P61/SOUT2/AN1
P62/SCLK21 /AN2
P63/SCLK22 /AN3
P64/AN4
P65/AN5
P66/AN6
Channel selector
P60/SIN2/AN0
ADT/A-D interrupt request
(H)
Comparater
A-D conversion register
(L)
A-D conversion register
10
Resistor ladder
P67/AN7
AVSS
VREF
P56/DA 1
Fig. 34 A-D converter block diagram
33
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
D-A CONVERTER
The 3827 group has an on-chip D-A converter with 8-bit resolution
and 2 channels (DAi (i=1, 2)). The D-A converter is performed by
setting the value in the D-A conversion register. The result of D-A
converter is output from DAi pin. When using the D-A converter,
the corresponding port direction register bit (P5 6 /DA1, P5 7/DA 2)
should be set to “0” (input status).
The output analog voltage V is determined by the value n (base
10) in the D-A conversion register as follows:
b7
b0
D-A control register
(DACON : address 0036 16)
DA1 output enable bit/DA 1 V REF
ON/OFF switch
DA2 output enable bit/DA 2 V REF
ON/OFF switch
Not used (return “0” when read)
V=VREF ✕ n/256 (n=0 to 255)
Where VREF is the reference voltage.
0 : Output disabled/OFF
1 : Output enabled/ON
At reset, the D-A conversion registers are cleared to “0016”, the
DAi output enable bits are cleared to “0”, and DAi pin goes to
high impedance state. The DA output is not buffered, so connect
an external buffer when driving a low-impedance load.
Fig. 35 Structure of D-A control register
Data bus
D-A1 conversion register (0034 16)
D-A2 conversion register (0035 16)
D-A i conversion register (8)
DA i output enable bit
R-2R resistor ladder
Fig. 36 Block diagram of D-A converter
VREF
Internal: D-A output
External: V REF
Reference voltage input select switch
Resistor ladder
VREF input
ON/OFF switch
D-A1 output
(P56)
A-D conversion register
(10 bits)
D-A1 output enable switch
D-A1 VREF ON/OFF switch
R-2R resistor ladder
D-A1 conversion register (8 bits)
D-A2 output enable switch
D-A2 V REF ON/OFF switch
D-A2 output
R-2R resistor ladder
(P5 7)
Fig. 37 A-D converter, D-A converter block diagram
34
D-A2 conversion register (8 bits)
P56/DA 1
P57/DA 2
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
LCD DRIVE CONTROL CIRCUIT
The 3827 group has the built-in Liquid Crystal Display (LCD) drive
control circuit consisting of the following.
●LCD display RAM
●Segment output enable register
●LCD mode register
●Voltage multiplier
●Selector
●Timing controller
●Common driver
●Segment driver
●Bias control circuit
A maximum of 40 segment output pins and 4 common output pins
can be used.
b7
Up to 160 pixels can be controlled for LCD display. When the LCD
enable bit is set to “1” after data is set in the LCD mode register,
the segment output enable register and the LCD display RAM, the
LCD drive control circuit starts reading the display data automatically, performs the bias control and the duty ratio control, and
displays the data on the LCD panel.
Table 7 Maximum number of display pixels at each duty ratio
Duty ratio
2
3
4
Maximum number of display pixel
80 dots
or 8 segment LCD 10 digits
120 dots
or 8 segment LCD 15 digits
160 dots
or 8 segment LCD 20 digits
b0
Segment output enable register
(SEG : address 0038 16)
Segment output enable bit 0
0 : Output ports P3 0 –P35
1 : Segment output SEG 18–SEG23
Segment output enable bit 1
0 : Output ports P3 6 , P37
1 : Segment output SEG 24,SEG25
Segment output enable bit 2
0 : I/O ports P0 0–P05
1 : Segment output SEG 26–SEG31
Segment output enable bit 3
0 : I/O ports P0 6,P07
1 : Segment output SEG 32,SEG33
Segment output enable bit 4
0 : I/O port P1 0
1 : Segment output SEG 34
Segment output enable bit 5
0 : I/O ports P1 1–P15
1 : Segment output SEG 35–SEG39
LCD output enable bit
0 : Disable
1 : Enable
Not used (return “0” when read)
(Do not write “1” to this bit)
b7
b0
LCD mode register
(LM : address 0039 16)
Duty ratio selection bits
0 0 : Not used
0 1 : 2 duty (use COM 0 , COM1 )
1 0 : 3 duty (use COM 0 –COM2 )
1 1 : 4 duty (use COM 0 –COM3 )
Bias control bit
0 : 1/3 bias
1 : 1/2 bias
LCD enable bit
0 : LCD OFF
1 : LCD ON
Voltage multiplier control bit
0 : Voltage multiplier disabled
1 : Voltage multiplier enabled
LCD circuit divider division ratio selection bits
0 0 : 1 division of clock input
0 1 : 2 division of clock input
1 0 : 4 division of clock input
1 1 : 8 division of clock input
LCDCK count source selection bit (Note)
0 : f(XCIN )/32
1 : f(XIN )/8192 (f(X CIN)/8192 in low-speed mode)
Note : LCDCK is a clock for a LCD timing controller.
Fig. 38 Structure of LCD mode register
35
36
Fig. 39 Block diagram of LCD controller/driver
Level
shift
Level
shift
SEG0
SEG1
SEG2
SEG3
Segment Segment Segment Segment
driver
driver
driver
driver
Level
shift
P30 /SEG18
Level
shift
Bias control
VCC
Common
driver
Level
Shift
Common
driver
Level
Shift
Common
driver
Level
Shift
COM0 COM1 COM2 COM3
Common
driver
Level
Shift
2
Timing controller
2
LCD circuit
divider division
ratio selection bits
Duty ratio selection bits
LCD enable bit
LCD output
enable bit
Bias control bit
VSS VL1 VL2 VL3 C1 C2
Voltage multiplier
control bit
LCD display RAM
P14/SEG38 P15/SEG39
Segment Segment
driver
driver
Level
shift
Selector Selector
Selector Selector Selector Selector
Level
shift
Address 0053 16
Address 004116
Address 0040 16
Data bus
LCDCK
LCD
divider
“1”
f(X IN)/8192
(f(XCIN )/8192
in low-speed mode)
LCDCK count source
selection bit
“0”
f(XCIN )/32
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
VOLTAGE MULTIPLIER (3 TIMES)
Bias Control and Applied Voltage to LCD
Power Input Pins
The voltage multiplier performs threefold boosting. This circuit inputs a reference voltage for boosting from LCD power input pin
VL1. (However, when using a 1/2 bias, connect V L1 and V L2 and
apply voltage by external resistor division.)
Set each bit of the segment output enable register and the LCD
mode register in the following order for operating the voltage multiplier.
1. Set the segment output enable bits (bits 0 to 5) of the segment output enable register to “0” or “1.”
2. Set the duty ratio selection bits (bits 0 and 1), the bias control bit (bit 2), the LCD circuit divider division ratio selection
bits (bits 5 and 6), and the LCDCK count source selection
bit (bit 7) of the LCD mode register to “0” or “1.”
3. Set the LCD output enable bit (bit 6) of the segment output
enable register to “1.”
4. Set the voltage multiplier control bit (bit 4) of the LCD mode
register to “1.”
When voltage is input to the VL1 pin during operating the voltage
multiplier, voltage that is twice as large as VL1 occurs at the VL2
pin, and voltage that is three times as large as VL1 occurs at the
VL3 pin.
When using the voltage multiplier, apply 1.3 V ≤ Voltage ≤ 2.3 V to
the VL1 pin.
When not using the voltage multiplier,apply proper voltage to the
LCD power input pins (VL1 –VL3 ). Then set the LCD output enable
bit to “1.”
When the LCD output enable bit is set to “0,” the VCC voltage is
applied to the VL3 pin inside of this microcomputer.
The voltage multiplier control bit (bit 4 of the LCD mode register)
controls the voltage multiplier.
To the LCD power input pins (VL1–VL3 ), apply the voltage shown in
Table 8 according to the bias value.
Select a bias value by the bias control bit (bit 2 of the LCD mode
register).
Table 8 Bias control and applied voltage to V L1–VL3
Bias value
1/3 bias
1/2 bias
Voltage value
VL3 =VLCD
VL2 =2/3 VLCD
VL1 =1/3 VLCD
VL3 =VLCD
VL2 =VL1 =1/2 VLCD
Note 1: V LCD is the maximum value of supplied voltage for the
LCD panel.
Contrast control
VCC
VL3
Contrast control
VCC
VL3
VL3
R1
VL2
VL2
C2
C2
R4
VL2
Open
C2
Open
C1
Open
R2
C1
C1
VL1
VL1
Open
VL1
R3
R5
PXX
R1=R2=R3
1/3 bias
when using the voltage multiplier
1/3 bias
when not using the voltage multiplier
R4=R5
1/2 bias
Fig. 40 Example of circuit at each bias
37
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Common Pin and Duty Ratio Control
ment/output port pins are pulled up to the VCC (=V L3) voltage in
the high impedance condition. The segment/I/O port pins are set
to input ports, and V CC (=VL3 ) is applied to them by pull-up resistor.
The common pins (COM 0–COM 3) to be used are determined by
duty ratio.
Select duty ratio by the duty ratio selection bits (bits 0 and 1 of the
LCD mode register).
When releasing from reset, the VCC (VL3) voltage is output from
the common pins.
LCD Display RAM
Address 004016 to 005316 is the designated RAM for the LCD display. When “1” are written to these addresses, the corresponding
segments of the LCD display panel are turned on.
Table 9 Duty ratio control and common pins used
Duty
ratio
Duty ratio selection bit
LCD Drive Timing
Common pins used
Bit 1
Bit 0
2
0
1
COM0, COM1 (Note 1)
3
1
COM0–COM2 (Note 2)
4
1
0
1
The LCDCK timing frequency (LCD drive timing) is generated internally and the frame frequency can be determined with the
following equation;
COM0–COM3
(frequency of count source for LCDCK)
(divider division ratio for LCD)
Notes1: COM2 and COM3 are open.
2: COM3 is open.
f(LCDCK) =
Segment Signal Output Pin
Frame frequency =
f(LCDCK)
(duty ratio)
3
0
Segment signal output pins are classified into the segment-only
pins (SEG 0 –SEG 17 ), the segment/output port pins (SEG 18–
SEG25 ), and the segment/I/O port pins (SEG 26–SEG 39).
Segment signals are output according to the bit data of the LCD
RAM corresponding to the duty ratio. After reset release, a VCC
(=V L3) voltage is output to the segment-only pins and the seg-
Bit
7
6
5
4
2
1
address
004016
SEG1
SEG0
004116
SEG3
SEG2
004216
SEG5
SEG4
004316
SEG7
SEG6
004416
SEG9
SEG8
004516
SEG11
SEG10
004616
SEG13
SEG12
004716
SEG15
SEG14
004816
SEG17
SEG16
004916
SEG19
SEG18
004A16
SEG21
SEG20
004B16
SEG23
SEG22
004C16
SEG25
SEG24
004D16
SEG27
SEG26
004E16
SEG29
SEG28
004F16
SEG31
SEG30
005016
SEG33
SEG32
005116
SEG35
SEG34
005216
SEG37
SEG36
005316
SEG39
SEG38
COM3 COM 2 COM 1 COM 0 COM 3 COM 2 COM 1 COM0
Fig. 41 LCD display RAM map
38
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Internal signal
LCDCK timing
1/4 duty
Voltage level
VL3
VL2=VL1
VSS
COM0
COM1
COM2
COM3
VL3
VSS
SEG0
OFF
COM3
ON
COM2
COM1
OFF
COM0
COM3
ON
COM2
COM1
COM0
1/3 duty
VL3
VL2=VL1
VSS
COM0
COM1
COM2
VL3
VSS
SEG0
ON
COM0
OFF
COM2
ON
COM1
OFF
COM0
COM2
ON
COM1
OFF
COM0
COM2
1/2 duty
VL3
VL2=VL1
VSS
COM0
COM1
VL3
VSS
SEG0
ON
COM1
OFF
COM0
ON
COM1
OFF
COM0
ON
COM1
OFF
COM0
ON
COM1
OFF
COM0
Fig. 42 LCD drive waveform (1/2 bias)
39
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Internal signal
LCDCK timing
1/4 duty
Voltage level
VL3
VL2
VL1
VSS
COM0
COM1
COM2
COM3
VL3
SEG0
VSS
OFF
COM3
ON
COM2
COM1
OFF
COM0
COM3
ON
COM2
COM1
COM0
1/3 duty
VL3
VL2
VL1
VSS
COM0
COM1
COM2
VL3
SEG0
VSS
ON
COM0
OFF
COM2
ON
COM1
OFF
COM0
COM2
ON
COM1
OFF
COM0
COM2
1/2 duty
VL3
VL2
VL1
VSS
COM0
COM1
VL3
SEG0
VSS
ON
COM1
OFF
COM0
Fig. 43 LCD drive waveform (1/3 bias)
40
ON
COM1
OFF
COM0
ON
COM1
OFF
COM0
ON
COM1
OFF
COM0
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
●value of high-order 6-bit counter
●value of STP instruction disable bit
●value of count source selection bit.
WATCHDOG TIMER
The watchdog timer gives a mean of returning to the reset status
when a program cannot run on a normal loop (for example, because of a software runaway).
The watchdog timer consists of an 8-bit watchdog timer L and a 6bit watchdog timer H. At reset or writing to the watchdog timer
control register (address 0037 16), the watchdog timer is set to
“3FFF 16.” When any data is not written to the watchdog timer control register (address 003716 ) after reset, the watchdog timer is in
stop state. The watchdog timer starts to count down from “3FFF16 ”
by writing an optional value into the watchdog timer control register (address 0037 16) and an internal reset occurs at an underflow.
Accordingly, programming is usually performed so that writing to
the watchdog timer control register (address 003716) may be
started before an underflow. The watchdog timer does not function
when an optional value have not written to the watchdog timer
control register (address 003716 ). When address 003716 is read,
the following values are read:
Data bus
“FF16” is set when
watchdog timer is
written to.
XCIN
“1”
Internal
system clock
selection bit
“0”
When bit 6 of the watchdog timer control register (address 003716 )
is set to “0,” the STP instruction is valid. The STP instruction is disabled by rewriting this bit to “1.” At this time, if the STP instruction
is executed, it is processed as an undefined instruction, so that a
reset occurs inside.
This bit cannot be rewritten to “0” by programming. This bit is “0”
immediately after reset.
The count source of the watchdog timer becomes the system
clock φ divided by 8. The detection time in this case is set to 8.19 s
at XCIN = 32 kHz and 65.536 ms at XIN = 4 MHz.
However, count source of high-order 6-bit timer can be connected
to a signal divided system clock by 8 directly by writing the bit 7 of
the watchdog timer control register (address 003716) to “1.” The
detection time in this case is set to 32 ms at XCIN = 32 kHz and
256 µs at XIN = 4 MHz. There is no difference in the detection time
between the middle-speed mode and the high-speed mode.
Watchdog timer
Watchdog timer count
source selection bit
“0”
L (8)
1/16
Watchdog timer
“1”
H (6)
“3F16” is set when
watchdog timer is
written to.
XIN
Undefined instruction
Reset
STP instruction disable bit
STP instruction
RESETIN
Reset circuit
Internal reset
Reset release time wait
Fig. 44 Block diagram of watchdog timer
b7
b0
Watchdog timer register (address 003716)
WDTCON
Watchdog timer H (for read-out of high-order 6 bit)
“3FFF16” is set to the watchdog timer by writing values to this address.
STP instruction disable bit
0 STP instruction enabled
1 : STP instruction disabled
Watchdog timer H count source selection bit
0 : Internal system clock/2048 (f(XIN)/4096)
1 : Internal system clock/8 (f(XIN)/16)
Fig. 45 Structure of watchdog timer control register
f(XIN)
Internal
reset signal
2ms (f(XIN) = 4MHZ)
Watchdog timer detection
Fig. 46 Timing of reset output
41
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
TOUT/φ CLOCK OUTPUT FUNCTION
The internal system clock φ or timer 2 divided by 2 (TOUT output)
can be output from port P43 by setting the TOUT/φ output control
bit (bit 1) of the timer 123 mode register and the TOUT/φ output
control register. Set bit 3 of the port P4 direction register to “1”
when outputting the clock.
b7
b0
TOUT /φ output control register
(CKOUT : address 002A 16)
TOUT /φ output control bit
0 : φ clock output
1 : TOUT output
Not used (return “0” when read)
b7
b0
Timer 123 mode register
(T123M : address 0029 16)
TOUT output active edge switch bit
0 : Start on “H” output
1 : Start on “L” output
TOUT /φ output control bit
0 : TOUT /φ output disable
1 : TOUT /φ output enable
Timer 2 write control bit
0 : Write data in latch and timer
1 : Write data in latch only
Timer 2 count source selection bit
0 : Timer 1 output
1 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode ✽)
Timer 3 count source selection bit
0 : Timer 1 output
1 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode ✽)
Timer 1 count source selection bit
0 : f(XIN )/16
(or f(XCIN )/16 in low-speed mode ✽)
1 : f(XCIN )
Not used (return “0” when read)
✽ : Internal clock φ is f(XCIN)/2 in low-speed mode.
Fig. 47 Structure of TOUT /φ output-related register
42
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
RESET CIRCUIT
Poweron
To reset the microcomputer, RESET pin should be held at an “L”
level for 2 µs or more. Then the RESET pin is returned to an “H”
level (the power source voltage should be between VCC(min.) and
5.5 V, and the oscillation should be stable), reset is released. After
the reset is completed, the program starts from the address contained in address FFFD 16 (high-order byte) and address FFFC 16
(low-order byte). Make sure that the reset input voltage is less
than 0.2 V CC for V CC of VCC (min.).
RESET
(Note)
Power source
voltage
0V
VCC
Reset input
voltage
0V
0.2VCC
Note : Reset release voltage ; VCC=VCC(min.)
RESET
VCC
Power source
voltage detection
circuit
Fig. 48 Reset Circuit Example
XIN
φ
RESET
Internal
reset
Reset address from
vector table
Address
?
?
?
Data
?
FFFC
ADL
FFFD
ADH, ADL
ADH
SYNC
XIN : about 8200 cycles
Notes 1: The frequency relation of f(X IN) and f(φ) is f(XIN) = 8 • f(φ).
2: The question marks (?) indicate an undefined state that
depends on the previous state.
Fig. 49 Reset Sequence
43
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Address
Register contents
Address
000116
0016
(28) A-D control register
003116
0816
(2) Port P1 direction register
000316
0016
003216
XX16
(3) Port P2 direction register
000516
0016
003316
XX16
(4) Port P3 output control register
000716
0016
(29) A-D conversion register
(low-order)
(30) A-D conversion register
(high-order)
(31) D-A1 conversion register
003416
0016
(5) Port P4 direction register
000916
0016
(32) D-A2 conversion register
003516
0016
(6) Port P5 direction register
000B16
0016
(33) D-A control register
003616
0016
(7) Port P6 direction register
000D16
0016
(34) Watchdog timer control register 003716
0 0 1 1 1 1 1 1
(8) Port P7 direction register
000F16
0016
(35) Segment output enable register 003816
0016
(9) Key input control register
001516
0016
(36) LCD mode register
003916
0016
(10) PULL register A
001616
3F16
(37) Interrupt edge selection register 003A16
0016
(11) PULL register B
001716
0016
(38) CPU mode register
003B16
0 1 0 0 1 0 0 0
(12) Serial I/O1 status register
001916 1 0 0 0 0 0 0 0
(39) Interrupt request register 1
003C16
0016
(13) Serial I/O1 control register
001A16
(40) Interrupt request register 2
003D16
0016
(14) UART control register
001B16 1 1 1 0 0 0 0 0
(41) Interrupt control register 1
003E16
0016
(15) Serial I/O2 control register
001D16
0016
(42) Interrupt control register 2
003F16
0016
(16) Timer X (low-order)
002016
FF16
(43) Processor status register
(17) Timer X (high-order)
002116
FF16
(44) Program counter
(18) Timer Y (low-order)
002216
FF16
(19) Timer Y (high-order)
002316
FF16
(45) Watchdog timer (high-order)
3F16
(20) Timer 1
002416
FF16
(46) Watchdog timer (low-order)
FF16
(21) Timer 2
002516
0116
(22) Timer 3
002616
FF16
(23) Timer X mode register
002716
0016
(24) Timer Y mode register
002816
0016
(25) Timer 123 mode register
002916
0016
(26) TOUT/φ output control register
002A16
0016
(27) PWM control register
002B16
0016
0016
(PS) ✕ ✕ ✕ ✕ ✕ 1 ✕ ✕
(PCH)
Contents of address FFFD 16
(PCL)
Contents of address FFFC 16
Note: The contents of all other register and RAM are undefined after reset, so they must be initialized by software.
✕ : Undefined
Fig. 50 Initial status at reset
44
Register contents
(1) Port P0 direction register
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
CLOCK GENERATING CIRCUIT
The 3827 group has two built-in oscillation circuits. An oscillation
circuit can be formed by connecting a resonator between XIN and
XOUT (XCIN and X COUT). Use the circuit constants in accordance
with the resonator manufacturer's recommended values. No external resistor is needed between XIN and XOUT since a feed-back
resistor exists on-chip. However, an external feed-back resistor is
needed between XCIN and XCOUT.
To supply a clock signal externally, input it to the XIN pin and make
the XOUT pin open. The sub-clock XCIN-X COUT oscillation circuit
cannot directly input clocks that are externally generated. Accordingly, be sure to cause an external resonator to oscillate.
Immediately after poweron, only the XIN oscillation circuit starts
oscillating, and XCIN and X COUT pins go to high impedance state.
Oscillation Control
(1) Stop Mode
Frequency Control
(1) Middle-speed Mode
If the STP instruction is executed, the internal clock φ stops at an
“H” level, and X IN and X CIN oscillators stop. The value set to the
timer latch 1 and the timer latch 2 is loaded automatically to the
timer 1 and the timer 2. Thus, a value generated time for stabilizing oscillation should be set to the timer 1 latch and the timer 2
latch (low-order 8 bits for the timer 1, high-order 8 bits for the timer
2) before executing the STP instruction.
Either X IN or X CIN divided by 16 is input to timer 1 as count
source, and the output of timer 1 is connected to timer 2. The bits
of the timer 123 mode register except bit 4 are cleared to “0,” Set
the timer 1 and timer 2 interrupt enable bits to disabled (“0”) before
executing the STP instruction. Oscillator restarts at reset or when
an external interrupt is received, but the internal clock φ is not supplied to the CPU until timer 2 underflows..This allows timer for the
clock circuit oscillation to stabilize.
The internal clock φ is the frequency of XIN divided by 8.
After reset, this mode is selected.
(2) Wait Mode
(2) High-speed Mode
The internal clock φ is half the frequency of XIN .
(3) Low-speed Mode
●The internal clock φ is half the frequency of XCIN.
●A low-power consumption operation can be realized by stopping
the main clock X IN in this mode. To stop the main clock, set bit 5
of the CPU mode register to “1”.
When the main clock XIN is restarted, set enough time for oscillation to stabilize by programming.
Note: If you switch the mode between middle/high-speed and lowspeed, stabilize both X IN and X CIN oscillations. The
sufficient time is required for the sub-clock to stabilize, especially immediately after poweron and at returning from
stop mode. When switching the mode between middle/highspeed and low-speed, set the frequency on condition that
f(XIN)>3f(XCIN ).
If the WIT instruction is executed, the internal clock φ stops at an
“H” level. The states of XIN and XCIN are the same as the state before the executing the WIT instruction. The internal clock restarts
at reset or when an interrupt is received. Since the oscillator does
not stop, normal operation can be started immediately after the
clock is restar ted.
XCIN
XCOUT
Rf
XIN
Rd
CCOUT
CCIN
XOUT
CIN
COUT
Fig. 51 Ceramic resonator circuit
XCIN
Rf
CCIN
XCOUT
XIN
XOUT
Open
Rd
CCOUT
External oscillation
circuit
VCC
VSS
Fig. 52 External clock input circuit
45
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
XCOUT
XCIN
XIN
XOUT
Low-speed mode
“0”
1/2
“1”
Middle-/High-speed mode
Timer 2 count
source selection
bit
Timer 1 count
source selection
bit
Internal system clock selection bit
(Note)
“1”
Timer 1
1/2
1/4
“0”
“0”
Timer 2
“1”
Main clock division ratio selection bit
Middle-speed mode
“1”
Main clock stop bit
Q
S
S
R
STP instruction
WIT
instruction
Q
R
Reset
Interrupt disable flag I
Interrupt request
Note: When selecting the X C oscillation, set the port X C switch bit to “1” .
Fig. 53 Clock generating circuit block diagram
46
Timing φ
(Internal clock)
“0”
High-speed mode
or Low-speed mode
Q
S
R
STP instruction
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Reset
”
“0
CM
”
“1 M6
C
”
“1
”
“0
CM7=0(8 MHz selected)
CM6=0(High-speed)
CM5=0(8 MHz oscillating)
CM4=0(32 kHz stopped)
C
“0 M4
”
CM
“1
” 6
“1
”
“0
”
Middle-speed mode (f(φ) =1 MHz)
CM 6
“1”
“0”
CM 6
“1”
“0”
High-speed mode (f(φ) =4 MHz)
CM7=0(8 MHz selected)
CM6=0(High-speed)
CM5=0(8 MHz oscillating)
CM4=1(32 kHz oscillating)
CM7
“1”
CM 7
“1”
“0”
“0”
CM7=0(8 MHz selected)
CM6=1(Middle-speed)
CM5=0(8 MHz oscillating)
CM4=1(32 kHz oscillating)
“0”
CM7=1(32 kHz selected)
CM6=1(Middle-speed)
CM5=0(8 MHz oscillating)
CM4=1(32 kHz oscillating)
”
CM 5
“1”
5
Low-power dissipation
mode (f(φ) =16 kHz)
CM7=1(32 kHz selected)
CM6=1(Middle-speed)
CM5=1(8 MHz stopped)
CM4=1(32 kHz oscillating)
Low-speed mode (f(φ) =16 kHz)
CM
”
“1 M6
C
”
“1
“0
0”
“
“1
”
CM7=1(32 kHz selected)
CM6=0(High-speed)
CM5=0(8 MHz oscillating)
CM4=1(32 kHz oscillating)
C
“0 M5
”
CM
6
“1
”
“0
”
CM 6
“1”
“0”
Low-speed mode (f(φ) =16 kHz)
“0”
CM5
“1”
CM4
“1”
4
High-speed mode (f(φ) =4 MHz)
“0”
“0”
“0”
CM7=0(8 MHz selected)
CM6=1(Middle-speed)
CM5=0(8 MHz oscillating)
CM4=0(32 kHz stopped)
CM4
“1”
CM 6
“1”
Middle-speed mode (f(φ) =1 MHz)
Low-power dissipation
mode (f(φ) =16 kHz)
CM7=1(32 kHz selected)
CM6=0(High-speed)
CM5=1(8 MHz stopped)
CM4=1(32 kHz oscillating)
b7
b4
CPU mode register
(CPUM : address 003B 16)
CM 4 : Port Xc switch bit
0: I/O port function
1: X CIN –XCOUT oscillating function
CM 5 : Main clock (XIN –XOUT ) stop bit
0: Oscillating
1: Stopped
CM 6 : Main clock division ratio selection bit
0: f(X IN)/2 (high-speed mode)
1: f(X IN)/8 (middle-speed mode)
CM 7 : Internal system clock selection bit
0: X IN –XOUT selected
(middle-/high-speed mode)
1: X CIN –XCOUT selected
(low-speed mode)
Notes 1 : Switch the mode by the allows shown between the mode blocks. (Do not switch between the mode directly without an allow.)
2 : The all modes can be switched to the stop mode or the wait mode and returned to the source mode when the stop mode or the wait mode is ended.
3 : Timer and LCD operate in the wait mode.
4 : When the stop mode is ended, wait time can be set by connecting timer 1 and timer 2 in middle-/high-speed mode.
5 : When the stop mode is ended, wait time can be set by connecting timer 1 and timer 2 in low-speed mode.
6 : Wait until oscillation stabilizes after oscillating the main clock X IN before the switching from the low-speed mode to middle-/high-speed mode.
7 : The example assumes that 8 MHz is being applied to the X IN pin and 32 kHz to the X CIN pin. φ indicates the internal clock.
Fig. 54 State transitions of system clock
47
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
NOTES ON PROGRAMMING
Processor Status Register
The contents of the processor status register (PS) after a reset are
undefined, except for the interrupt disable flag (I) which is “1”. After a reset, initialize flags which affect program execution.
In particular, it is essential to initialize the index X mode (T) and
the decimal mode (D) flags because of their effect on calculations.
Interrupt
The contents of the interrupt request bits do not change immediately after they have been written. After writing to an interrupt
request register, execute at least one instruction before performing
a BBC or BBS instruction.
Decimal Calculations
• To calculate in decimal notation, set the decimal mode flag (D)
to “1”, then execute an ADC or SBC instruction. After executing
an ADC or SBC instruction, execute at least one instruction before executing a SEC, CLC, or CLD instruction.
• In decimal mode, the values of the negative (N), overflow (V),
and zero (Z) flags are invalid.
Timers
If a value n (between 0 and 255) is written to a timer latch, the frequency division ratio is 1/(n + 1).
Multiplication and Division Instructions
The index mode (T) and the decimal mode (D) flags do not affect
the MUL and DIV instruction.
The execution of these instructions does not change the contents
of the processor status register.
Ports
The contents of the port direction registers cannot be read.
The following cannot be used:
• The data transfer instruction (LDA, etc.)
• The operation instruction when the index X mode flag (T) is “1”
• The addressing mode which uses the value of a direction register as an index
• The bit-test instruction (BBC or BBS, etc.) to a direction register
• The read-modify-write instruction (ROR, CLB, or SEB, etc.) to a
direction register
Use instructions such as LDM and STA, etc., to set the port direction registers.
48
Serial I/O
In clock synchronous serial I/O, if the receive side is using an external clock and it is to output the SRDY signal, set the transmit
enable bit, the receive enable bit, and the SRDY output enable bit
to “1”.
Serial I/O1 continues to output the final bit from the TXD pin after
transmission is completed.
In serial I/O2, the SOUT2 pin goes to high impedance state after
transmission is completed.
A-D Converter
The comparator uses internal capacitors whose charge will be lost
if the clock frequency is too low.
Make sure that f(XIN ) is at least 500 kHz during an A-D conversion.
Do not execute the STP or WIT instruction during an A-D conversion.
Instruction Execution Time
The instruction execution time is obtained by multiplying the frequency of the internal clock φ by the number of cycles needed to
execute an instruction.
The number of cycles required to execute an instruction is shown
in the list of machine instructions.
The frequency of the internal clock φ is half of the X IN frequency.
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DATA REQUIRED FOR MASK ORDERS
ROM PROGRAMMING METHOD
The following are necessary when ordering a mask ROM production:
(1) Mask ROM Order Confirmation Form
(2) Mark Specification Form
(3) Data to be written to ROM, in EPROM form (three identical
copies)
The built-in PROM of the blank One Time PROM version and builtin EPROM version can be read or programmed with a
general-purpose PROM programmer using a special programming
adapter. Set the address of PROM programmer in the user ROM
area.
DATA REQUIRED FOR ROM WRITING ORDERS
The following are necessary when ordering a ROM writing:
(1) ROM Writing Confirmation Form
(2) Mark Specification Form
(3) Data to be written to ROM, in EPROM form (three identical
copies)
Table 10 Special programming adapter
Package
Name of Programming Adapter
100PFB-A
Under development (PCA4738H-100A)
100P6Q-A
PCA4738G-100A
100P6S-A
PCA4738F-100A
100D0
PCA4738L-100A
The PROM of the blank One Time PROM version is not tested or
screened in the assembly process and following processes. To ensure proper operation after programming, the procedure shown in
Figure 55 is recommended to verify programming.
Programming with PROM
programmer
Screening (Caution)
(150°C for 40 hours)
Verification with
PROM programmer
Functional check in
target device
Caution : The screening temperature is far higher
than the storage temperature. Never
expose to 150 °C exceeding 100 hours.
Fig. 55 Programming and testing of One Time PROM version
49
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Table 11 Absolute maximum ratings
Symbol
VCC
VI
VI
VI
VI
VI
VI
VI
VI
VO
Parameter
Power source voltage
Input voltage P00–P07 , P10–P17, P20 –P27,
P41–P47 , P50–P57, P60 –P67
Input voltage P40, P7 1–P77
Input voltage P70
Input voltage VL1
Input voltage VL2
Input voltage VL3
Input voltage C1, C2
Input voltage RESET, X IN
Output voltage C 1, C2
VO
Output voltage P0 0–P07, P10–P15 , P30–P37
VO
VO
VO
VO
VO
Pd
Topr
Tstg
Output voltage P16, P17 , P20–P27, P41 –P47,
P50–P57 , P60–P67, P80, P8 1
Output voltage P4 0, P71–P77
Output voltage VL3
Output voltage VL2, SEG 0–SEG17
Output voltage X OUT
Power dissipation
Operating temperature
Storage temperature
Conditions
All voltages are based on VSS .
Output transistors are cut off.
At output port
At segment output
Ta = 25°C
Ratings
–0.3 to 7.0
Unit
V
–0.3 to VCC +0.3
V
–0.3 to 7.0
–0.3 to VCC +0.3
–0.3 to VL2
VL1 to VL3
VL2 to 7.0
–0.3 to 7.0
–0.3 to VCC +0.3
–0.3 to 7.0
–0.3 to VCC
–0.3 to VL3
V
V
V
V
V
V
V
V
V
V
–0.3 to VCC +0.3
V
–0.3 to 7.0
–0.3 to 7.0
–0.3 to VL3
–0.3 to VCC +0.3
300
–20 to 85
–40 to 125
V
V
V
V
mW
°C
°C
RECOMMENDED OPERATING CONDITIONS
Table 12 Recommended operating conditions (V CC = 2.5 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
Parameter
High-speed mode f(X IN) = 8 MHz
Middle-speed mode f(XIN) = 8 MHz
Low-speed mode
VCC
Power source voltage
VSS
VREF
AVSS
VIA
Power source voltage
A-D, D-A conversion reference voltage
Analog power source voltage
Analog input voltage AN 0–AN 7
“H” input voltage
P00–P07 ,
P56, P6 1,
“H” input voltage
P20–P27 ,
P62, P6 3,
RESET
“H” input voltage
XIN
“H” input voltage
“L” input voltage
P00–P07 ,
P56, P6 1,
“L” input voltage
P20–P27 ,
P62, P6 3,
“L” input voltage
RESET
“L” input voltage
XIN
VIH
VIH
VIH
VIH
VIL
VIL
VIL
VIL
50
Min.
4.0
2.2
2.2
Limits
Typ.
5.0
5.0
5.0
0
Max.
5.5
5.5
5.5
AVSS
VCC
0.7 VCC
VCC
V
0.8 VCC
VCC
V
0.8 VCC
0.8 VCC
VCC
VCC
V
V
0
0.3 VCC
V
0
0.2 VCC
V
0
0
0.2 VCC
0.2 VCC
V
V
VCC+0.3
0
P10–P17, P40 , P43, P45 , P47, P50–P53 ,
P64–P67, P7 1–P77
P41, P42, P4 4, P46, P54 , P55, P57 , P60,
P70
V
V
V
V
V
2.7
P10–P17, P40 , P43, P45 , P47, P50–P53 ,
P64–P67, P7 1–P77
P41, P42, P4 4, P46, P54 , P55, P57 , P60,
P70
Unit
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 13 Recommended operating conditions (VCC = 2.2 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
Parameter
ΣI OH(peak)
ΣI OH(peak)
ΣI OL(peak)
ΣI OL(peak)
ΣI OL(peak)
ΣI OH(avg)
ΣI OH(avg)
ΣI OL(avg)
ΣI OL(avg)
ΣI OL(avg)
I OH(peak)
“H” total peak output current
“H” total peak output current
“L” total peak output current
“L” total peak output current
“L” total peak output current
“H” total average output current
“H” total average output current
“L” total average output current
“L” total average output current
“L” total average output current
“H” peak output current
I OH(peak)
“H” peak output current
I OL(peak)
“L” peak output current
I OL(peak)
“L” peak output current
I OL(peak)
I OH(avg)
I OH(avg)
I OL(avg)
“L” peak output current
“H” average output current
“H” average output current
“L” average output current
I OL(avg)
“L” average output current
I OL(avg)
“L” average output current
P00–P07, P1 0–P17, P20–P27 , P30–P37 (Note 1)
P41–P47, P5 0–P57, P60–P67 (Note 1)
P00–P07, P1 0–P17, P20–P27 , P30–P37 (Note 1)
P41–P47, P5 0–P57, P60–P67 (Note 1)
P40, P71 –P77 (Note 1)
P00–P07, P1 0–P17, P20–P27 , P30–P37 (Note 1)
P41–P47, P5 0–P57, P60–P67 (Note 1)
P00–P07, P1 0–P17, P20–P27 , P30–P37 (Note 1)
P41–P47, P5 0–P57, P60–P67 (Note 1)
P40, P71 –P77 (Note 1)
P00–P07, P1 0–P15, P30–P37 (Note 2)
P16, P17 , P20–P27, P41 –P47, P50–P57, P6 0–P67
(Note 2)
P00–P07, P1 0–P15, P30–P37 (Note 2)
P16, P17 , P20–P27, P41 –P47, P50–P57, P6 0–P67
(Note 2)
P40, P71 –P77 (Note 2)
P00–P07, P1 0–P15, P30–P37 (Note 3)
P16, P17 , P20–P27, P41 –P47, P50–P57, P6 0–P67
P00–P07, P1 0–P15, P30–P37 (Note 3)
P16, P17 , P20–P27, P41 –P47, P50–P57, P6 0–P67
(Note 3)
P40, P71 –P77 (Note 3)
Min.
Limits
Typ.
Max.
Unit
–20
–20
20
20
80
–10
–10
10
10
40
–1.0
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
–5.0
mA
5.0
mA
10
mA
20
–0.5
–2.5
2.5
mA
mA
mA
mA
5.0
mA
10
mA
Notes1: The total output current is the sum of all the currents flowing through all the applicable ports. The total average current is an average value measured
over 100 ms. The total peak current is the peak value of all the currents.
2: The peak output current is the peak current flowing in each port.
3: The average output current is an average value measured over 100 ms.
51
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 14 Recommended operating conditions (Mask ROM version) (VCC = 2.2 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
f(CNTR 0)
f(CNTR 1)
Parameter
Input frequency for timers X and Y
(duty cycle 50%)
f(XIN )
Main clock input oscillation frequency
(Note 1)
f(XCIN )
Sub-clock input oscillation frequency (Notes 1, 2)
Test conditions
Min.
Limits
Typ.
(4.0 V ≤ VCC ≤ 5.5 V)
Max.
4.0
Unit
MHz
(10✕VCC
–4)/9 MHz
(2.2 V ≤ VCC ≤ 4.0 V)
High-speed mode
(4.0 V ≤ VCC ≤ 5.5 V)
High-speed mode
(2.2 V ≤ VCC ≤ 4.0 V)
Middle-speed mode
8.0
MHz
(20✕VCC
–8)/9 MHz
8.0
MHz
32.768
50
kHz
Notes1: When the oscillation frequency has a duty cycle of 50%.
2: When using the microcomputer in low-speed mode, make sure that the sub-clock input oscillation frequency on condition that f(XCIN ) < f(XIN )/3.
Table 15 Recommended operating conditions (PROM version) (V CC = 2.5 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
f(CNTR 0)
f(CNTR 1)
Parameter
Input frequency for timers X and Y
(duty cycle 50%)
f(XIN )
Main clock input oscillation frequency
(Note 1)
f(XCIN )
Sub-clock input oscillation frequency (Notes 1, 2)
Test conditions
(4.0 V ≤ VCC ≤ 5.5 V)
(2.5 V ≤ VCC ≤ 4.0 V)
High-speed mode
(4.0 V ≤ VCC ≤ 5.5 V)
High-speed mode
(2.5 V ≤ VCC ≤ 4.0 V)
Middle-speed mode
Min.
Limits
Typ.
Max.
4.0
Unit
MHz
(2✕VCC)
–4 MHz
8.0
MHz
(4✕VCC)
–8 MHz
8.0
MHz
32.768
50
kHz
Notes1: When the oscillation frequency has a duty cycle of 50%.
2: When using the microcomputer in low-speed mode, make sure that the sub-clock input oscillation frequency on condition that f(XCIN ) < f(XIN )/3.
52
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 16 Electrical characteristics (VCC =4.0 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
Parameter
VOH
“H” output voltage
P00–P07, P10–P15 , P30–P37
VOH
“H” output voltage
P16, P17, P20 –P27, P41–P47 , P50–P57,
P60–P67 (Note 1)
VOL
VOL
VOL
VT+ – VT–
VT+ – VT–
VT+ – VT–
I IH
“L” output voltage
P00–P07, P10–P15 , P30–P37
“L” output voltage
P16, P17, P20 –P27, P41–P47 , P50–P57,
P60–P67
“L” output voltage
P40, P71–P77
IOH = –1 mA
IOH = –0.25 mA
VCC = 2.2 V
IOH = –5 mA
IOH = –1.5 mA
IOH = –1.25 mA
VCC = 2.2 V
IOL = 5 mA
IOL = 1.5 mA
IOL = 1.25 mA
VCC = 2.2 V
IOL = 10 mA
IOL = 3.0 mA
IOL = 2.5 mA
VCC = 2.2 V
I OL = 10 mA
I OL = 5 mA
VCC = 2.2 V
Limits
Min.
VCC–2.0
“H” input current
“H” input current
I IL
“L” input current
P00 –P07, P10–P17, P2 0–P27,P4 0–P47,
P50 –P57, P60–P67, P7 0–P77
RESET
XIN
I IL
I IL
I IL
“L” input current
“L” input current
“L” input current
P70
RESET
XIN
I LOAD
Output load current
P30–P37
Output leak current
P30–P37
VI = VCC
VI = VCC
VI = VSS
Pull-ups “off”
VCC = 5 V, VI = VSS
Pull-ups “on”
VCC = 2.2 V, VI = VSS
Pull-ups “on”
VI = VSS
VI = VSS
VCC = 5.0 V, VO = VCC, Pull-ups “on”
Output transistors “off”
VCC = 2.2 V, VO = VCC, Pull-ups “on”
Output transistors “off”
VO = VCC, Pull-ups “off”
Output transistors “off”
VO = VSS, Pull-ups “off”
Output transistors “off”
Typ.
Max.
Unit
V
VCC–0.8
V
VCC–2.0
VCC–0.5
V
V
VCC–0.8
V
Hysteresis
INT0–INT 2, ADT, CNTR0, CNTR1, P20–P27
Hysteresis
SCLK, RXD
Hysteresis
RESET
“H” input current
P00–P07, P10–P17 , P20–P27, P40 –P47,
VI = VCC
P50–P57, P60–P67 , P70–P77
I IH
I IH
I LEAK
Test conditions
2.0
0.5
V
V
0.8
V
2.0
0.5
V
V
0.8
V
0.5
V
0.3
V
0.5
V
0.5
0.5
V
V
5.0
µA
5.0
µA
µA
–5.0
µA
4.0
–60.0
–120.0
–240.0
µA
–5.0
–20.0
–40.0
µA
–5.0
–5.0
µA
µA
µA
–4.0
–60.0
–120.0
–240.0
µA
–5.0
–20.0
–40.0
µA
5.0
µA
–5.0
µA
53
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 17 Electrical characteristics (VCC =2.2 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
VRAM
Parameter
RAM retention voltage
Test conditions
Min.
2.0
At clock stop mode
• High-speed mode, VCC = 5 V
Limits
Typ.
Max.
5.5
Unit
V
f(XIN) = 8 MHz
f(XCIN) = 32.768 kHz
Output transistors “off”
A-D conver ter in operating
• High-speed mode, VCC = 5 V
6.4
13
mA
1.6
3.2
mA
35
70
µA
20
40
µA
15.0
22.0
µA
4.5
9.0
µA
0.1
1.0
f(XIN) = 8 MHz (in WIT state)
f(XCIN) = 32.768 kHz
Output transistors “off”
A-D conver ter in operating
• Low-speed mode, VCC = 5 V, Ta ≤ 55°C
f(XIN) = stopped
I CC
Power source current
f(XCIN) = 32.768 kHz
Output transistors “off”
• Low-speed mode, VCC = 5 V, Ta = 25°C
f(XIN) = stopped
f(XCIN) = 32.768 kHz (in WIT state)
Output transistors “off”
• Low-speed mode, VCC = 3 V, Ta ≤ 55°C
f(XIN) = stopped
f(XCIN) = 32.768 kHz
Output transistors “off”
• Low-speed mode, VCC = 3 V, Ta ≤ 25°C
f(XIN) = stopped
f(XCIN) = 32.768 kHz (in WIT state)
Output transistors “off”
All oscillation stopped
(in STP state)
Output transistors “off”
VL1
Power source voltage
I L1
Power source current (V L1)
(Note)
When using voltage multiplier
VL1 = 1.8 V
VL1 < 1.3 V
Note: When the voltage multiplier control bit of the LCD mode register (bit 4 at address 003916) is “1”.
54
Ta = 25 °C
Ta = 85 °C
µA
10.0
1.3
1.8
3.0
10.0
2.3
6.0
50.0
V
µA
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 18 A-D converter characteristics
(VCC = 2.2 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, 4 MHz ≤ f(XIN) ≤ 8 MHz, in middle/high-speed mode unless otherwise noted)
Symbol
–
Parameter
Test conditions
Resolution
Absolute accuracy
(excluding quantization error)
VCC ≥ VREF = 4 V
VCC ≥ VREF = 2.7 V
t CONV
Conversion time
f(XIN) = 4 MHz
RLADDER
I VREF
IIA
Ladder resistor
Reference power source input current
Analog port input current
VREF = 5 V
–
Min.
Limits
Typ.
10
±2.5
±4.0
31
(Note)
30.5
50
Max.
35
150
0.5
200
5.0
Unit
Bits
LSB
LSB
µs
kΩ
µA
µA
Note: When an internal trigger is used in middle-speed mode, it is 34 µs.
Table 19 D-A converter characteristics
(VCC = 2.2 to 5.5 V, VCC = VREF, VSS = AVSS = 0 V, Ta = –20 to 85°C, in middle/high-speed mode unless otherwise noted)
Symbol
–
–
t su
RO
I VREF
Parameter
Test conditions
Min.
Limits
Typ.
Resolution
Absolute accuracy
Setting time
Output resistor
Reference power source input current
VCC = VREF = 5 V
VCC = VREF = 2.7 V
1
(Note)
3
2.5
Max.
8
1.0
2.0
4
6.0
Unit
Bits
%
%
µs
kΩ
mA
Note: Using one D-A converter, with the value in the D-A conversion register of the other D-A converter being “00 16”, and excluding currents flowing through
the A-D resistance ladder.
55
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 20 Timing requirements 1 (V CC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
t w(RESET)
t c(X IN)
t wH(XIN)
t wL(XIN)
t c(CNTR)
t wH(CNTR)
t wL(CNTR)
t wH(INT)
t wL(INT)
t c(S CLK1)
t wH(SCLK1)
t wL(SCLK1)
t su(RXD–SCLK1)
t h(SCLK1 –RX D)
t c(S CLK2)
t wH(SCLK2)
t wL (SCLK2 )
t su(SIN2–SCLK2)
t h(SCLK2 –SIN2)
Parameter
Reset input “L” pulse width
Main clock input cycle time (X IN input)
Main clock input “H” pulse width
Main clock input “L” pulse width
CNTR0, CNTR1 input cycle time
CNTR0, CNTR1 input “H” pulse width
CNTR0, CNTR1 input “L” pulse width
INT0 to INT2 input “H” pulse width
INT0 to INT2 input “L” pulse width
Serial I/O1 clock input cycle time (Note)
Serial I/O1 clock input “H” pulse width (Note)
Serial I/O1 clock input “L” pulse width (Note)
Serial I/O1 input set up time
Serial I/O1 input hold time
Serial I/O2 clock input cycle time (Note)
Serial I/O2 clock input “H” pulse width (Note)
Serial I/O2 clock input “L” pulse width (Note)
Serial I/O2 input set up time
Serial I/O2 input hold time
Min.
2
125
45
40
250
105
105
80
80
800
370
370
220
100
1000
400
400
200
200
Limits
Typ.
Max.
Unit
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note: When bit 6 of address 001A 16 is “1”.
Divide this value by four when bit 6 of address 001A 16 is “0”.
Table 21 Timing requirements 2 (VCC = 2.2 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
t w(RESET)
t c(XIN)
t wH(XIN)
t wL(XIN)
t c(CNTR)
t wH(CNTR)
t wL(CNTR)
t wH(INT)
t wL(INT)
t c(SCLK1 )
t wH(SCLK1 )
t wL(SCLK1)
t su(RXD–SCLK1)
t h(SCLK1 –RX D)
t c(S CLK2)
t wH(SCLK2)
t wL(SCLK2)
tsu(S IN2–S CLK2)
t h(SCLK2 –SIN2 )
Parameter
Reset input “L” pulse width
Main clock input cycle time (X IN input)
Main clock input “H” pulse width
Main clock input “L” pulse width
CNTR0, CNTR1 input cycle time
CNTR0, CNTR1 input “H” pulse width
CNTR0, CNTR1 input “L” pulse width
INT0 to INT2 input “H” pulse width
INT0 to INT2 input “L” pulse width
Serial I/O1 clock input cycle time (Note)
Serial I/O1 clock input “H” pulse width (Note)
Serial I/O1 clock input “L” pulse width (Note)
Serial I/O1 input set up time
Serial I/O1 input hold time
Serial I/O2 clock input cycle time (Note)
Serial I/O2 clock input “H” pulse width (Note)
Serial I/O2 clock input “L” pulse width (Note)
Serial I/O2 input set up time
Serial I/O2 input hold time
Note: When bit 6 of address 001A 16 is “1”.
Divide this value by four when bit 6 of address 001A 16 is “0”.
56
Limits
Min.
Typ.
2
125
45
40
900/(V CC–0.4)
t c(CNTR)/2–20
t c(CNTR)/2–20
230
230
2000
950
950
400
200
2000
950
950
400
300
Max.
Unit
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 22 Switching characteristics 1 (VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
t wH(SCLK1)
t wL(SCLK1)
t d(SCLK1 –TX D)
t v(S CLK1–TX D)
t r(SCLK1 )
t f(SCLK1)
t wH(SCLK2)
t wL(SCLK2)
t d(SCLK2–SOUT2 )
t v(SCLK2–S OUT2)
t f(SCLK2)
t r(CMOS)
t f(CMOS)
Parameter
Serial I/O1 clock output “H” pulse width
Serial I/O1 clock output “L” pulse width
Serial I/O1 output delay time (Note 1)
Serial I/O1 output valid time (Note 1)
Serial I/O1 clock output rising time
Serial I/O1 clock output falling time
Serial I/O2 clock output “H” pulse width
Serial I/O2 clock output “L” pulse width
Serial I/O2 output delay time
Serial I/O2 output valid time
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
Limits
Min.
tC (S CLK1)/2–30
tC (S CLK1)/2–30
Typ.
Max.
140
–30
30
30
tC (SCLK2)/2–160
tC (SCLK2)/2–160
0.2 ✕ tC (S CLK2)
0
10
10
40
30
30
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes1: When the P45/TX D P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.
2: XOUT and X COUT pins are excluded.
Table 23 Switching characteristics 2 (VCC = 2.2 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Symbol
t wH(SCLK1)
twL(S CLK1)
t d(SCLK1 –TX D)
t v(S CLK1–TX D)
t r(SCLK1 )
t f(SCLK1)
t wH(SCLK2)
t wL(SCLK2)
t d(SCLK2–SOUT2 )
t v(SCLK2–S OUT2)
t f(SCLK2)
t r(CMOS)
t f(CMOS)
Parameter
Serial I/O1 clock output “H” pulse width
Serial I/O1 clock output “L” pulse width
Serial I/O1 output delay time (Note 1)
Serial I/O1 output valid time (Note 1)
Serial I/O1 clock output rising time
Serial I/O1 clock output falling time
Serial I/O2 clock output “H” pulse width
Serial I/O2 clock output “L” pulse width
Serial I/O2 output delay time
Serial I/O2 output valid time
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
Min.
tC (S CLK1)/2–50
tC (S CLK1)/2–50
Limits
Typ.
Max.
350
–30
50
50
tC (SCLK2)/2–240
tC (SCLK2)/2–240
0.2 ✕ tC (S CLK2)
0
20
20
50
50
50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes1: When the P45/TX D P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.
2: XOUT and X COUT pins are excluded.
57
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Measurement output pin
1 kΩ
100 pF
Measurement output pin
CMOS output
100 pF
N-channel open-drain output (Note)
Note : When bit 4 of the UART
control register (address 001B 16) is “1”.
(N-channel open-drain output mode)
Fig. 56 Circuit for measuring output switching characteristics
58
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
tC (CNTR)
tWL (CNTR)
tWH (CNTR)
CNTR0, CNTR1
0.8VCC
INT0–INT3
0.8VCC
0.2VCC
tWL (INT)
tWH (INT)
0.2VCC
tW (RESET)
RESET
0.8VCC
0.2VCC
tC (XIN)
tWL (XIN)
tWH (XIN)
0.8VCC
XIN
tC (SCLK)
tr
tf
SCLK
0.2VCC
tWL (SCLK)
tWH (SCLK)
0.8VCC
0.2VCC
tsu (RXD-SCLK)
th (SCLK-RXD)
0.8VCC
0.2VCC
RX D
td (SCLK-TXD)
tv (SCLK-TXD)
TXD
Fig. 57 Timing diagram
59
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MASK ROM ORDER CONFIRMATION FORM
GZZ-SH52-92B<85A0>
740 FAMILY MASK ROM CONFIRMATION FORM
SINGLE-CHIP MICROCOMPUTER M38277M8MXXXFP/GP/HP
MITSUBISHI ELECTRIC
Receipt
Mask ROM number
Date:
Section head Supervisor
signature
signature
❈ Customer
TEL
(
Company
name
Date
issued
)
Date:
Issuance
signature
Note : Please fill in all items marked ❈.
Submitted by
Supervisor
❈ 1. Confirmation
Specify the name of the product being ordered and the type of EPROMs submitted.
Three EPROMs are required for each pattern.
If at least two of the three sets of EPROMs submitted contain identical data, we will produce masks based on this data. We
shall assume the responsibility for errors only if the mask ROM data on the products we produce differs from this data.
Thus, extreme care must be taken to verify the data in the submitted EPROMs.
Product name:
M38277M8MXXXFP
M38277M8MXXXGP
Checksum code for entire EPROM
M38277M8MXXXHP
(hexadecimal notation)
EPROM type (indicate the type used)
27512
EPROM address
000016
000F16
001016
Product name
ASCII code :
‘M38277M8M’
In the address space of the microcomputer,
the internal ROM area is from address 808016
to FFFD 16. The reset vector is stored in
addresses FFFC16 and FFFD16.
807F 16
808016
Data
ROM 32K-130 bytes
FFFD 16
FFFE 16
FFFF16
(1) Set the data in the unused area (the shaded area of the
diagram) to “FF16”.
(2) The ASCII codes of the product name “M38277M8M” must
be entered in addresses 000016 to 000816 . And set data
“FF16 ” in addresses 000916 to 000F 16. The ASCII codes
and addresses are listed to the right in hesadecimal
notation.
(1/2)
60
Address
000016
000116
000216
000316
000416
000516
000616
000716
‘M’ = 4D16
‘3’ = 3316
‘8’ = 3816
‘2’ = 3216
‘7’ = 3716
‘7’ = 3716
‘M’ = 4D16
‘8’ = 3816
Address
000816
000916
000A16
000B16
000C16
000D16
000E16
000F16
‘ M ’ =4D16
FF16
FF16
FF16
FF16
FF16
FF16
FF16
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
GZZ-SH52-92B<85A0>
Mask ROM number
740 FAMILY MASK ROM CONFIRMATION FORM
SINGLE-CHIP MICROCOMPUTER M38277M8MXXXFP/GP/HP
MITSUBISHI ELECTRIC
We recommend the use of the following pseudo-command to set the start address of the assembier source program because
ASCII codes of the product name are written to addresses 000016 to 000816 of EPROM.
EPROM type
27512
The pseudo-command
*=∆$0000
.BYTE∆ ‘M38277M8M’
Note: If the name of the product written to the EPROMs does not match the name of the mask ROM confirmation form, the ROM
will not be processed.
❈ 2. Mark specification
Mark specification must be submitted using the correct form for the package being ordered. Fill out the appropriate mark
specification form (100P6S for M38277M8MXXXFP, 100P6Q for M38277M8MXXXGP, 100PFB for M38277M8MXXXHP)
and attach it to the mask ROM confirmation form.
❈ 3. Usage conditions
Please answer the following questions about usage for use in our product inspection :
(1) How will you use the XIN-XOUT oscillator?
Ceramic resonator
Quartz crystal
External clock input
At what frequency?
Other (
)
f(XIN) =
MHz
(2) How will you use the XCIN-XCOUT oscillator?
Ceramic resonator
Other (
At what frequency?
Quartz crystal
)
f(XCIN) =
MHz
❈ 4. Comments
(2/2)
61
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
ROM PROGRAMMING CONFIRMATION FORM
GZZ-SH51-93B<85A0>
ROM number
SINGLE-CHIP MICROCOMPUTER M38279EF-XXXFP/GP/HP
MITSUBISHI ELECTRIC
Receipt
740 FAMILY ROM PROGRAMMING CONFIRMATION FORM
Date:
Section head Supervisor
signature
signature
❈ Customer
TEL
(
Company
name
Date
issued
)
Date:
Issuance
signature
Note : Please fill in all items marked ❈.
Submitted by
Supervisor
❈ 1. Confirmation
Specify the name of the product being ordered and the type of EPROMs submitted.
Three EPROMs are required for each pattern.
If at least two of the three sets of EPROMs submitted contain identical data, we will produce ROM programming based on
this data. We shall assume the responsibility for errors only if the programming data on the products we produce differs
from this data. Thus, extreme care must be taken to verify the data in the submitted EPROMs.
Product name:
M38279EF-XXXFP
M38279EF-XXXGP
Checksum code for entire EPROM
M38279EF-XXXHP
(hexadecimal notation)
EPROM type (indicate the type used)
27512
EPROM address
000016
000F16
001016
107F 16
108016
Product name
ASCII code :
‘M38279EF-’
In the address space of the microcomputer,
the internal ROM area is from address 108016
to FFFD 16. The reset vector is stored in
addresses FFFC16 and FFFD16 .
Data
ROM 60K-130 bytes
FFFD16
FFFE16
FFFF16
(1) Set the data in the unused area (the shaded area of the
diagram) to “FF16”.
(2) The ASCII codes of the product name “M38279EF-” must
be entered in addresses 0000 16 to 0008 16. And set data
“FF16 ” in addresses 000916 to 000F16. The ASCII codes
and addresses are listed to the right in hesadecimal
notation.
(1/2)
62
Address
000016
000116
000216
000316
000416
000516
000616
000716
‘M’ = 4D16
‘3’ = 3316
‘8’ = 3816
‘2’ = 3216
‘7’ = 3716
‘9’ = 3916
‘E’ = 4516
‘F’ = 4616
Address
000816
000916
000A16
000B16
000C16
000D16
000E16
000F16
‘ – ’ =2D16
FF16
FF16
FF16
FF16
FF16
FF16
FF16
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
GZZ-SH51-93B<85A0>
ROM number
740 FAMILY ROM PROGRAMMING CONFIRMATION FORM
SINGLE-CHIP MICROCOMPUTER M38279EF-XXXFP/GP/HP
MITSUBISHI ELECTRIC
We recommend the use of the following pseudo-command to set the start address of the assembier source program because
ASCII codes of the product name are written to addresses 0000 16 to 000816 of EPROM.
EPROM type
27512
The pseudo-command
*=∆$0000
.BYTE∆ ‘M38279EF-’
Note: If the name of the product written to the EPROMs does not match the name of the ROM programming confirmation form,
the ROM will not be processed.
❈ 2. Mark specification
Mark specification must be submitted using the correct form for the package being ordered. Fill out the appropriate mark
specification form (100P6S for M38279EF-XXXFP, 100P6Q for M38279EF-XXXGP, 100PFB for M38279EF-XXXHP) and
attach it to the ROM programming confirmation form.
❈ 3. Usage conditions
Please answer the following questions about usage for use in our product inspection :
(1) How will you use the XIN-XOUT oscillator?
Ceramic resonator
Quartz crystal
External clock input
At what frequency?
Other (
)
f(XIN) =
MHz
(2) How will you use the XCIN-XCOUT oscillator?
Ceramic resonator
Other (
At what frequency?
Quartz crystal
)
f(XCIN) =
MHz
❈ 4. Comments
(2/2)
63
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
100P6S-A
Plastic 100pin 14✕20mm body QFP
EIAJ Package Code
QFP100-P-1420-0.65
Weight(g)
1.58
Lead Material
Alloy 42
MD
e
JEDEC Code
–
100
ME
HD
D
b2
81
1
80
I2
E
HE
Recommended Mount Pad
30
Symbol
A
A1
A2
b
c
D
E
e
HD
HE
L
L1
y
51
31
50
A
c
A2
L1
F
b
A1
e
b2
I2
MD
ME
L
Detail F
y
100P6Q-A
Dimension in Millimeters
Min
Nom
Max
–
–
3.05
0.1
0.2
0
2.8
–
–
0.25
0.3
0.4
0.13
0.15
0.2
13.8
14.0
14.2
19.8
20.0
20.2
0.65
–
–
16.5
16.8
17.1
22.5
22.8
23.1
0.4
0.6
0.8
1.4
–
–
0.1
–
–
0°
10°
–
0.35
–
–
–
–
1.3
–
–
14.6
–
–
20.6
Plastic 100pin 14✕14mm body LQFP
EIAJ Package Code
LQFP100-P-1414-0.50
Weight(g)
Lead Material
Cu Alloy
MD
e
JEDEC Code
–
b2
ME
HD
D
76
100
I2
75
1
Symbol
HE
E
Recommended Mount Pad
51
25
50
26
A
L1
F
b
y
A1
c
A2
e
L
Detail F
64
A
A1
A2
b
c
D
E
e
HD
HE
L
L1
y
b2
I2
MD
ME
Dimension in Millimeters
Min
Nom
Max
–
–
1.7
0.1
0.2
0
1.4
–
–
0.13
0.18
0.28
0.105
0.125
0.175
13.9
14.0
14.1
13.9
14.0
14.1
0.5
–
–
15.8
16.0
16.2
15.8
16.0
16.2
0.3
0.5
0.7
1.0
–
–
0.1
–
–
0°
10°
–
0.225
–
–
–
–
1.0
–
–
14.4
–
–
14.4
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
100PFB-A
Plastic 100pin 12✕12mm body TQFP
EIAJ Package Code
TQFP100-P-1212-0.40
Weight(g)
Lead Material
Cu Alloy
MD
e
JEDEC Code
–
HD
Under Development
ME
D
76
b2
100
1
75
l2
25
HE
E
Recommended Mount Pad
Symbol
A
A1
A2
b
c
D
E
e
HD
HE
L
L1
y
51
26
50
A
L1
e
A1
c
A2
F
y
b
b2
I2
MD
ME
L
Detail F
100D0
Dimension in Millimeters
Min
Nom
Max
–
–
1.2
0.1
0.15
0.05
1.0
–
–
0.13
0.18
0.23
0.105
0.125
0.175
11.9
12.0
12.1
11.9
12.0
12.1
0.4
–
–
13.8
14.0
14.2
13.8
14.0
14.2
0.4
0.5
0.6
1.0
–
–
0.08
–
–
0°
8°
–
0.225
–
–
1.0
–
–
12.4
–
–
–
–
12.4
Glass seal 100pin QFN
EIAJ Package Code
–
JEDEC Code
–
Weight(g)
18.85±0.15
5.0MAX
21.0±0.13
3.5TYP
0.65TYP
0.45TYP
80
51
81
INDEX
0.35TYP
0.65TYP
12.35±0.15
1.075TYP
15.6±0.13
0.65TYP
50
31
100
30
1.075TYP
1
65
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
100P6S (100-PIN QFP) MARK SPECIFICATION FORM
Mitsubishi IC catalog name
Please choose one of the marking types below (A, B, C), and enter the Mitsubishi catalog name and the special mark (if needed).
A. Standard Mitsubishi Mark
80
51
81
50
Mitsubishi IC catalog name
Mitsubishi lot number
(6-digit or 7-digit)
31
100
1
30
B. Customer’s Parts Number + Mitsubishi catalog name
80
51
81
50
31
100
1
30
Customer’s Parts Number
Note : The fonts and size of characters are standard Mitsubishi type.
Mitsubishi IC catalog name
Note1 : The mark field should be written right aligned.
2 : The fonts and size of characters are standard Mitsubishi type.
3 : Customer’s Parts Number can be up to 14 characters : Only 0 ~
9, A ~ Z, +, –, /, (, ), &, , (periods), (commas) are usable.
4 : If the Mitsubishi logo
is not required, check the box below.
Mitsubishi logo is not required
.
,
C. Special Mark Required
80
51
81
50
100
31
1
Note1 : If the Special Mark is to be Printed, indicate the desired
layout of the mark in the left figure. The layout will be
duplicated as close as possible.
Mitsubishi lot number (6-digit or 7-digit) and Mask ROM
number (3-digit) are always marked.
2 : If the customer’s trade mark logo must be used in the
Special Mark, check the box below.
Please submit a clean original of the logo.
For the new special character fonts a clean font original
(ideally logo drawing) must be submitted.
30
Special logo required
66
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
100P6Q (100-PIN LQFP) MARK SPECIFICATION FORM
Mitsubishi IC catalog name
Please choose one of the marking types below (A, B, C), and enter the Mitsubishi catalog name and the special mark (if needed).
A. Standard Mitsubishi Mark
75
51
76
50
Mitsubishi IC catalog name
Mitsubishi IC catalog name
Mitsubishi lot number
(6-digit or 7-digit)
100
26
1
25
B. Customer’s Parts Number + Mitsubishi catalog name
75
51
76
50
Mitsubishi lot number
(6-digit or 7-digit)
100
26
1
25
Customer’s Parts Number
Note : The fonts and size of characters are standard Mitsubishi type.
Mitsubishi IC catalog name
Note1 : The mark field should be written right aligned.
2 : The fonts and size of characters are standard Mitsubishi type.
3 : Customer’s Parts Number can be up to 12 characters : Only 0 ~
9, A ~ Z, +, –, /, (, ), &, , (periods), (commas) are usable.
4 : If the Mitsubishi logo
is not required, check the box below.
Mitsubishi logo is not required
.
,
C. Special Mark Required
75
51
76
50
100
26
Note1 : If the Special Mark is to be Printed, indicate the desired
layout of the mark in the left figure. The layout will be
duplicated as close as possible.
Mitsubishi lot number (6-digit or 7-digit) and Mask ROM
number (3-digit) are always marked.
2 : If the customer’s trade mark logo must be used in the
Special Mark, check the box below.
Please submit a clean original of the logo.
For the new special character fonts a clean font original
(ideally logo drawing) must be submitted.
Special logo required
1
25
67
MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
100PFB (100-PIN TQFP) MARK SPECIFICATION FORM
Mitsubishi IC catalog name
Please choose one of the marking types below (A, B, C), and enter the Mitsubishi catalog name and the special mark (if needed).
A. Standard Mitsubishi Mark
75
51
50
76
Mitsubishi IC catalog name
Mitsubishi IC catalog name
Mitsubishi lot number
(6-digit or 7-digit)
100
26
1
25
B. Customer’s Parts Number + Mitsubishi catalog name
75
51
50
76
Mitsubishi lot number
(6-digit or 7-digit)
100
26
1
Customer’s Parts Number
Note : The fonts and size of characters are standard Mitsubishi type.
Mitsubishi IC catalog name
Note1 : The mark field should be written right aligned.
2 : The fonts and size of characters are standard Mitsubishi type.
3 : Customer’s Parts Number can be up to 10 characters : Only 0 ~
9, A ~ Z, +, –, /, (, ), &, , (periods), (commas) are usable.
4 : If the Mitsubishi logo
is not required, check the box below.
Mitsubishi logo is not required
.
,
25
5 : The allocation of Mitsubishi IC catalog name and Mitsubishi
Product number depend on the Mitsubishi IC catalog name’s
characters, and requiring Mitsubishi logo
or not.
C. Special Mark Required
75
51
76
50
100
26
Note1 : If the Special Mark is to be Printed, indicate the desired
layout of the mark in the left figure. The layout will be
duplicated as close as possible.
Mitsubishi lot number (6-digit or 7-digit) and Mask ROM
number (3-digit) are always marked.
2 : If the customer’s trade mark logo must be used in the
Special Mark, check the box below.
Please submit a clean original of the logo.
For the new special character fonts a clean font original
(ideally logo drawing) must be submitted.
Special logo required
1
68
25
Keep safety first in your circuit designs!
•
Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with
semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of
substitutive, auxiliary circuits, (ii) use of non-flammable material or (iii) prevention against any malfunction or mishap.
•
These materials are intended as a reference to assist our customers in the selection of the Mitsubishi semiconductor product best suited to the customer’s application; they do not convey any license under any
intellectual property rights, or any other rights, belonging to Mitsubishi Electric Corporation or a third party.
Mitsubishi Electric Corporation assumes no responsibility for any damage, or infringement of any third-party’s rights, originating in the use of any product data, diagrams, charts or circuit application examples
contained in these materials.
All information contained in these materials, including product data, diagrams and charts, represent information on products at the time of publication of these materials, and are subject to change by Mitsubishi
Electric Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor
product distributor for the latest product information before purchasing a product listed herein.
Mitsubishi Electric Corporation semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact
Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for
transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use.
The prior written approval of Mitsubishi Electric Corporation is necessary to reprint or reproduce in whole or in part these materials.
If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the
approved destination.
Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited.
Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for further details on these materials or the products contained therein.
Notes regarding these materials
•
•
•
•
•
•
© 1998 MITSUBISHI ELECTRIC CORP.
New publication, effective Jun. 1998.
Specifications subject to change without notice.
REVISION DESCRIPTION LIST
Rev.
No.
1.0
3827 GROUP DATA SHEET
Revision Description
First Edition
Rev.
date
980602
(1/1)
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