HD64F2149YV datasheet(230/1075 Pages) RENESAS

230 / 1075 page

Section 8 I/O Ports

Rev. 3.00 Jan 18, 2006 page 202 of 1044

REJ09B0280-0300

Expanded Modes

Single-Chip Mode

Port

Description

Pins

Mode 1

Mode 2, Mode 3

(EXPE = 1)

Mode 2, Mode 3

(EXPE = 0)

Port 9 • 8-bit I/O

port

P92/

IRQ0

P91/

IRQ1

I/O port also functioning as external interrupt input

(

IRQ0, IRQ1)

P90/

LWR/IRQ2/

ADTRG/ECS2

I/O port also functioning as

expanded data bus control

output (

LWR), external

interrupt input (

IRQ2), and A/D

converter external trigger input

(

ADTRG)

I/O port also functioning

as external interrupt

input (

IRQ2), A/D

converter external

trigger input (

ADTRG),

and host interface

(XBS) control input

(

ECS2)

Port A • 8-bit I/O

port

PA7/A23/

KIN15/

CIN15/PS2CD

PA6/A22/

KIN14/

CIN14/PS2CC

PA5/A21/

KIN13/

CIN13/PS2BD

PA4/A20/

KIN12/

CIN12/PS2BC

PA3/A19/

KIN11/

CIN11/PS2AD

PA2/A18/

KIN10/

CIN10/PS2AC

PA1/A17/

KIN9/

CIN9

PA0/A16/

KIN8/

CIN8

I/O port also

functioning

as key-

sense

interrupt

input

(

KIN15 to

KIN8),

expansion

A/D

converter

input

(CIN15 to

CIN8), and

keyboard

buffer

controller

input/output

(PS2CD,

PS2CC,

PS2BD,

PS2BC,

PS2AD,

PS2AC)

I/O port also

functioning as

address output

(A23 to A16),

key-sense

interrupt input

(

KIN15 to KIN8),

expansion A/D

converter input

(CIN15 to CIN8),

and keyboard

buffer controller

input/output

(PS2CD,

PS2CC, PS2BD,

PS2BC, PS2AD,

PS2AC)

I/O port also functioning

as key-sense interrupt

input (

KIN15 to KIN8),

expansion A/D

converter input (CIN15

to CIN8), and keyboard

buffer controller

input/output (PS2CD,

PS2CC, PS2BD,

PS2BC, PS2AD,

PS2AC)

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