MB91354A 데이터 시트보기 (PDF) - Fujitsu

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MB91354A

32-Bit Proprietary Microcontroller

Fujitsu 

MB91350A Series

Pin no.

161

164

165

166

167

168

169

170

171

Pin name

Circuit

type

Description

CS3

Chip select 3 output. This function is enabled when the chip select 3 output is en-

abled.

C

PA3

General purpose input/output port. This function is enabled when the chip select

3 output is disabled.

RDY

External ready input. The pin has this function when external ready input is en-

abled.

IN0

D

Input capture input pin. Since this input is used as required when selected as an

input capture input, the port output must remain off unless intentionally turned on.

P80

General purpose input/output port. This function is enabled when external ready

signal input is disabled.

BGRNT

Acknowledge output for external bus release. Outputs “L” when the external bus

is released. The pin has this function when output is enabled.

IN1

D

Input capture input pin. Since this input is used as required when selected as an

input capture input, the port output must remain off unless intentionally turned on.

P81

General purpose input/output port. This function is enabled when external bus re-

lease acknowledge output is disabled.

BRQ

External bus release request input. Input “1” to request release of the external

bus. The pin has this function when input is enabled.

IN2

D

Input capture input pin. Since this input is used as required when selected as an

input capture input, the port output must remain off unless intentionally turned on.

P82

General purpose input/output port. The pin has this function when the external

bus release request input is disabled.

RD

External bus read strobe output. It is available in the external bus mode.

D

P83

General purpose input/output port. This is enabled at single chip mode.

WR0

P84

External bus write strobe output. It is available in the external bus mode.

D

General purpose input/output port. This is enabled at single chip mode.

WR1

External bus write strobe output. This function is enabled when WR1 output is en-

abled in external bus mode.

IN3

D

Input capture input pin. Since this input is used as required when selected as an

input capture input, the port output must remain off unless intentionally turned on.

P85

General purpose input/output port. The pin has this function when the external

bus write-enable output is disabled.

SYSCLK

P90

System clock output The pin has this function when system clock output is en-

abled. This outputs the same clock as the external bus operating frequency. (Out-

C put halts in stop mode.)

General purpose input/output port. The pin has this function when system clock

output is disabled.

P91

C General purpose input/output port.

(Continued)

12

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