NEC mPD789101 User Manual page 62

Address Special Function Register (SFR) Name
FF70H Asynchronous serial interface mode register 20
FF71H Asynchronous serial interface status register 20 ASIS20
FF72H Serial operating mode register 20
FF73H Baud rate generator control register 20
FF74H Transmit shift register 20
Receive buffer register 20
FF80H A/D converter mode register 0
FF84H A/D input select register 0
FFD0H Multiplication data register A0
FFD1H Multiplication data register B0
FFD2H Multiplier control register 0
FFE0H Interrupt request flag register 0
FFE1H Interrupt request flag register 1
FFE4H Interrupt mask flag register 0
FFE5H Interrupt mask flag register 1
FFECH External interrupt mode register 0
FFF7H Pull-up resistor option register 0
FFF9H Watchdog timer mode register
FFFAH Oscillation stabilization time select register
FFFBH Processor clock control register
µ PD789104, 789114 Subseries only
Note
62
CHAPTER 4 CPU ARCHITECTURE
Table 4-3. Special Function Register List (2/2)
Symbol
ASIM20
CSIM20
BRGC20
TXS20 SIO20
RXB20
ADM0
ADS0
MRA0
MRB0
MULC0
IF0
IF1
MK0
MK1
INTM0
PU0
WDTM
Note
OSTS
PCC
User's Manual U13045EJ2V0UM00
R/W Bit Units for Manipulation
1 bit 8 bits 16 bits
√ √
R/W —
√ √
R —
√ √
R/W —
√
— —
√
W — —
√
R — —
√ √
R/W —
√ √
—
√ √
W —
√ √
—
√ √
R/W —
√ √
—
√ √
—
√ √
—
√ √
—
√
— —
√ √
—
√ √
—
√
— —
√ √
—
After Reset
00H
FFH
Undefined
00H
Undefined
00H
FFH
00H
04H
02H