MB90F482B datasheet(11/124 Pages) FUJITSU

11 / 124 page

MB90480B/485B Series

DS07-13722-11E

(Continued)

Pin No.

Pin name

I/O

circuit

type*3

Function

QFP*1

LQFP*2

P54

(CMOS)

This is a general purpose I/O port. In external bus mode, when the

HDE bit in the EPCR register is set to “1”, this pin functions as the

HRQ pin.

HRQ

In external bus mode, this pin functions as the hold request input

(HRQ) pin. When the HDE bit in the EPCR register is set to “0”, this

pin functions as a general purpose I/O port.

P55

(CMOS)

This is a general purpose I/O port. In external bus mode, when the

HDE bit in the EPCR register is set to “1”, this pin functions as the

HAK pin.

HAK

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

output (HAK) pin. When the HDE bit in the EPCR register is set to

“0”, this pin functions as a general purpose I/O port.

P56

(CMOS)

This is a general purpose I/O port. In external bus mode, when the

RYE bit in the EPCR register is set to “1”, this pin functions as the

RDY pin.

RDY

In external bus mode, this pin functions as the external ready (RDY)

input pin. When the RYE bit in the EPCR register is set to “0”, this

pin functions as a general purpose I/O port.

P57

(CMOS)

This is a general purpose I/O port. In external bus mode, when the

CKE bit in the EPCR register is set to “1”, this pin functions as the

CLK pin.

CLK

In external bus mode, this pin functions as the machine cycle clock

(CLK) output pin. When the CKE bit in the EPCR register is set to

“0”, this pin functions as a general purpose I/O port.

38 to 41 36 to 39

P60 to P63

(CMOS)

These are general purpose I/O ports.

AN0 to AN3

These are the analog input pins for A/D converter.

43 to 46 41 to 44

P64 to P67

(CMOS)

These are general purpose I/O ports.

AN4 to AN7

These are the analog input pins for A/D converter.

P70

(CMOS/H)