Electronics America Single-Chip Microcontrollers User's Manual

ManualsBrandsNEC ManualsComputer HardwarePD78F9488

CHAPTER 3 CPU ARCHITECTURE

64 User’s Manual U15331EJ4V1UD

Table 3-4. Special Function Registers (2/3)

Bit Unit for Manipulation Address Special Function Register (SFR) Name Symbol R/W

1 Bit 8 Bits 16 Bits

After

Reset

FF40H 8-bit H width compare register 61 CRH61 W

− √ −

Undefined

FF41H 8-bit timer mode control register 61 TMC61

√ √ −

FF42H Watchdog timer clock selection register WDCS

− √ −

FF46H Subclock selection register

Note 1

SSCK

√ √ −

FF48H 16-bit timer mode control register 20 TMC20

√ √ −

FF4AH Watch timer mode control register WTM

√ √ −

FF4BH Watch timer interrupt time selection register WTIM

R/W

√ √ −

00H

FF4CH 8-bit H width compare register 60 CRH60 W

− √ −

Undefined

FF4DH 8-bit timer mode control register 50 TMC50

√ √ −

FF4EH 8-bit timer mode control register 60 TMC60

√ √ −

FF4FH Carrier generator output control register 60 TCA60

R/W

√ √ −

FF57H Port function register 7

Note 1

PF7

− √ −

FF58H Port function register 8

Note 1

PF8

− √ −

FF60H Remote controller receive control register

Note 2

RMCN R/W

√ √ −

FF61H Remote controller receive data register

Note 2

RMDR

− √ −

FF62H Remote controller shift register receive counter

Note 2

RMSCR

− √ −

FF63H Remote controller receive shift register

Note 2

RMSR

− √ −

FF66H Remote controller receive GPHS compare register

Note 2

RMGPHS

− √ −

FF67H Remote controller receive GPHL compare register

Note 2

RMGPHL

− √ −

FF68H Remote controller receive DLS compare register

Note 2

RMDLS

− √ −

FF69H Remote controller receive DLL compare register

Note 2

RMDLL

− √ −

FF6AH Remote controller receive DH0S compare register

Note 2

RMDH0S

− √ −

FF6BH Remote controller receive DH0L compare register

Note 2

RMDH0L

− √ −

FF6CH Remote controller receive DH1S compare register

Note 2

RMDH1S

− √ −

FF6DH Remote controller receive DH1L compare register

Note 2

RMDH1L

− √ −

FF6EH Remote controller receive end width select register

Note 2

RMER

− √ −

FF70H Asynchronous serial interface mode register 20 ASIM20

R/W

√ √ −

FF71H Asynchronous serial interface status register 20 ASIS20 R

√ √ −

FF72H Serial operation mode register 20 CSIM20

√ √ −

FF73H Baud rate generator control register 20 BRGC20

R/W

− √ −

00H

Transmit shift register 20 TXS20 W

− √ −

FFH FF74H

Receive buffer register 20 RXB20

SIO20

− √ −

Undefined

FF78H Serial operation mode register 1A0 CSIM1A0

√ √ −

FF79H Automatic data transmit/receive control register 0 ADTC0

√ √ −

00H

FF7AH Automatic data transmit/receive address pointer 0 ADTP0

− √ −

Undefined

FF7BH Automatic data transmit/receive interval specification

ADTI0

R/W

√ √ −

00H

Notes 1. These registers function only in the

PD78F9488 and 78F9489; however, writing to these registers in

the

PD789488 and 789489 will not affect the operation.

PD789489 and 78F9489 only