MB90583CPF datasheet(9/112 Pages) FUJITSU

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MB90580C Series

DS07-13710-7E

■ PIN DESCRIPTION

*1: FPT-100P-M06

*2: FPT-100P-M20

(Continued)

Pin no.

Pin name

Circuit

type

Function

QFP*1

LQFP*2

Oscillator pin

HST

Hardware standby input pin

RST

Reset input pin

85 to 92 83 to 90

P00 to

P07

(CMOS/H)

General-purpose I/O ports.

A pull-up resistor can be assigned (RD07 to RD00=“1”) by the pull-

up resistor setting register (RDR0). [These pins are disabled with

the output setting (DDR0 register: D07 to D00=“1”).]

AD00 to

AD07

In external bus mode, the pins function as the lower data I/O or low-

er address outputs (AD00 to AD07).

93 to

100

91 to 98

P10 to

P17

(CMOS/H)

General-purpose I/O ports.

A pull-up resistor can be assigned (RD17 to RD10=“1”) by the pull-

up resistor setting register (RDR1). [These pins are disabled with

the output setting (DDR1 register: D17 to D10 =“1”).]

AD08 to

AD15

In 16-bit external bus mode, the pins function as the upper data

I/O or middle address outputs (AD08 to AD15).

1 to 8

99,100,

1 to 6

P20 to

P27

(CMOS/H)

General-purpose I/O ports

In external bus mode, pins for which the corresponding bit in the

HACR register is “1” function as the A16 to A23 pins.

A16 to

A23

In external bus mode, pins for which the corresponding bit in the

HACR register is “1” function as the upper address output pins

(A16 to A23).

P30

(CMOS/H)

General-purpose I/O port

Functions as the ALE pin in external bus mode.

ALE

Functions as the address latch enable signal pin (ALE) in external

bus mode.

P31

(CMOS/H)

General-purpose I/O port

Functions as the RD pin in external bus mode.

Functions as the read strobe output pin (RD) in external bus mode.

P32

(CMOS/H)

General-purpose I/O port

Functions as the WRL pin in external bus mode if the WRE bit is

“1”.

WRL

Functions as the lower data write strobe output pin (WRL) in

external bus mode.

P33

(CMOS/H)

General-purpose I/O port

Functions as the WRH pin in 16-bit external bus mode if the WRE

bit in the EPCR register is “1”

WRH

Functions as the upper data write strobe output pin (WRH) in

external bus mode.

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