IBM nec pd78081(a) Manual Do Utilizador

Address

Special-Function Register (SFR) Name

Symbol

R/W

After Reset

FFEAH

Priority order specify flag register 1L

PR1L

R/W

√

√

—

FFH

FFECH

External interrupt mode register 0

INTM0

—

√

—

00H

FFEDH

External interrupt mode register 1

INTM1

—

√

—

FFF0H

Memory size switching register

IMS

—

√

—

(Note)

FFF2H

Oscillation mode selection register

OSMS

W

—

√

—

00H

FFF3H

Pull-up resistor option register H

PUOH

R/W

√

√

—

FFF7H

Pull-up resistor option register L

PUOL

√

√

—

FFF9H

Watchdog timer mode register

WDTM

√

√

—

FFFAH

Oscillation stabilization time select register

OSTS

—

√

—

04H

FFFBH

Processor clock control register

PCC

√

√

—

Manipulatable Bit Unit

8 bits

1 bit

16 bits

The value after reset depends on products.

µ

PD78081 : 82H, 

µ

PD78082 : 64H, 

µ

PD78P083 : 46H.