CHAPTER 3 CPU ARCHITECTURE
Table 3-4. Special Function Register List (2/2)
Address
Special Function Register (SFR) Name
Symbol
R/W
Bit Manipulation Unit
1 Bit 16 Bits
After Reset
FFH
8 Bits
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
FF27H
FF28H
FF29H
FF32H
FF33H
FF37H
FF38H
FF39H
FF42H
FF48H
FF49H
FF4AH
FF4CH
FF4DH
FF4EH
FF4FH
FF70H
FF71H
FF72H
FF73H
FF80H
FF84H
FFB0H
FFB2H
FFB3H
FFE0H
FFE1H
FFE4H
FFE5H
FFECH
FFEDH
FFF0H
FFF2H
FFF5H
FFF7H
FFF9H
FFFAH
FFFBH
Port mode register 7
PM7
R/W
√
√
√
√
√
√
√
√
−
√
√
√
−
√
√
√
√
√
√
−
√
√
√
√
√
√
√
√
√
−
−
√
√
√
√
√
−
√
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Port mode register 8Note
PM8
Port mode register 9Note
PM9
Pull-up resistor option register B2
Pull-up resistor option register B3
Pull-up resistor option register B7
Pull-up resistor option register B8Note
Pull-up resistor option register B9Note
Watchdog timer clock select register
16-bit timer mode control register 90
Buzzer output control register 90
Watch timer mode control register
8-bit compare register H60
PUB2
PUB3
PUB7
PUB8
PUB9
WDCS
TMC90
BZC90
WTM
00H
CRH60
TMC50
TMC60
TCA60
ASIM20
ASIS20
CSIM20
BRGC20
ADM0
ADS0
LCDM0
LCDC0
LCDVA0
IF0
W
Undefined
00H
8-bit timer mode control register 50
8-bit timer mode control register 60
Carrier generator output control register 60
Asynchronous serial interface mode register 20
Asynchronous serial interface status register 20
Serial operation mode register 20
Baud rate generator control register 20
A/D converter mode register 0
Analog input channel specification register 0
LCD display mode register 0
R/W
W
R/W
R
R/W
LCD clock control register 0
LCD voltage amplification control register 0
Interrupt request flag register 0
Interrupt request flag register 1
Interrupt mask flag register 0
IF1
MK0
FFH
00H
Interrupt mask flag register 1
MK1
External interrupt mode register 0
External interrupt mode register 1
Suboscillation mode register
INTM0
INTM1
SCKM
CSS
Subclock control register
Key return mode register 00
KRM00
PU0
Pull-up resistor option register 0
Watchdog timer mode register
Oscillation stabilization time select register
Processor clock control register
WDTM
OSTS
PCC
04H
02H
Note µPD789426 and 789436 Subseries only.
User’s Manual U15075EJ1V0UM00
67
NEC [ NEC ]
