MB90F482 datasheet(11/120 Pages) FUJITSU

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MB90480/485 Series

(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 out-

put (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

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

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)