MB90570A データシートの表示（PDF） - Fujitsu

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MB90570A

16-bit Proprietary Microcontroller

Fujitsu 

MB90570A/570C Series

■ PIN DESCRIPTION

Pin no.

LQFP *1

QFP *2

92,93

74,73

Pin name

X0,X1

X0A,X1A

89 to 87 MD0 to MD2

90

RST

86

HST

Circuit

type

A

B

C

C

C

P00 to P07

95 to 102

D

AD00 toAD07

P10 to P17

103 to 110

D

AD08 toAD15

P20 to P27

111 to 118

E

A16 to A23

P30

120

E

ALE

P31

1

E

RD

P32

2

E

WRL

P33

3

E

WRH

P34

4

E

HRQ

P35

5

E

HAK

P36

6

E

RDY

*1 : FPT-120P-M24

*2 : FPT-120P-M13, FPT-120P-M21

Function

High speed oscillator pins

Low speed oscillator pins

These are input pins used to designate the operating mode. They

should be connected directly to Vcc or Vss.

Reset input pin

Hardware standby input pin

In single chip mode, these are general purpose I/O pins. When set for

input, they can be set by the pull-up resistance setting register

(RDR0). When set for output, this setting will be invalid.

In external bus mode, these pins function as address low output/data

low I/O pins.

In single chip mode, these are general purpose I/O pins. When set for

input, they can be set by the pull-up resistance setting register

(RDR1). When set for output, the setting will be invalid.

In external bus mode, these pins function as address middle output/

data high I/O pins.

In single chip mode this is a general-purpose I/O port.

In external bus mode, these pins function as address high output

pins.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the address latch enable

signal output pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the read strobe signal out-

put pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the data bus lower 8-bit

write strobe signal output pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the data bus upper 8-bit

write strobe signal output pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the hold request signal in-

put pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the hold acknowledge sig-

nal output pin.

In single chip mode this is a general-purpose I/O port.

In external bus mode, this pin functions as the ready signal input pin.

(Continued)

8

DS07-13701-9E

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