M37544G Mitsubishi Electric, M37544G Datasheet - Page 32

• Manufacturer Part Number: M37544G
• Description: Single-Chip 8-Bit CMOS Microcomputer
• Manufacturer: Mitsubishi Electric

Fig. 37 Internal status of microcomputer at reset
32
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
Port P0 direction register
Port P1 direction register
Port P2 direction register
Port P3 direction register
Pull-up control register
Port P1P3 control register
Serial I/O status register
Serial I/O control register
UART cotrol register
Timer A mode register
Timer A (low-order)
Timer A (high-order)
Prescaler 1
Timer 1
Timer X mode register
Prescaler X
Timer X
Timer count source set register 1
Timer count source set register 2
A-D control register
MISRG
Watchdog timer control register
Interrupt edge selection register
CPU mode register
Interrupt request register 1
Interrupt request register 2
Interrupt control register 1
Interrupt control register 2
Processor status register
Program counter
X : Undefined
The content of other registers is undefined when the microcomputer is reset.
The initial values must be surely set before you use it.
Address
001D
002C
002D
003C
003D
001A
001B
001E
001F
002B
002E
002F
003A
003B
003E
003F
0001
0003
0005
0007
0016
0017
0019
0028
0029
0034
0038
0039
(PC
(PC
(PS)
H
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
L
)
)
X
X
0
1
1
0
0
0
1
X
Contents of address FFFD
Contents of address FFFC
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
X
X
X
X
0
1
0
0
0
0
Register contents
X
0
X
0
1
0
0
1
0
X
0
0
0
0
0
0
1
1
0
X
00
00
00
00
00
FF
FF
FF
00
FF
FF
00
00
00
00
00
00
00
00
MITSUBISHI MICROCOMPUTERS
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
X
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
1
0
X
16
16
0
0
0
0
0
1
0
1
0
X
7544 Group