HD64F2149YV datasheet(229/1075 Pages) RENESAS

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Section 8 I/O Ports

Rev. 3.00 Jan 18, 2006 page 201 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 8 • 7-bit I/O

port

P86/

IRQ5/SCK1/

SCL1

P85/

IRQ4/RxD1

P84/

IRQ3/TxD1

P83/

LPCPD

P82/HIFSD/

CLKRUN

P81/

CS2/GA20

P80/HA0/

PME

I/O port also functioning as

external interrupt input (

IRQ5,

IRQ4, IRQ3), SCI1 input/

output (TxD1, RxD1, SCK1),

and I

2C bus interface 1

input/output (SCL1)

I/O port also functioning

as external interrupt

input (

IRQ5, IRQ4,

IRQ3), SCI1

input/output (TxD1,

RxD1, SCK1), host

interface (XBS) control

input/output (

CS2,

GA20, HA0, HIFSD),

host interface (LPC)

control input/output

(

LPCPD, CLKRUN,

GA20,

PME), and I2C

bus interface 1

input/output (SCL1)

Port 9 • 8-bit I/O

port

P97/

WAIT/SDA0 I/O port also functioning as

expanded data bus control

input (

WAIT) and I2C bus

interface 0 input/output (SDA0)

I/O port also functioning

as I

2C bus interface 0

input/output (SDA0)

P96/

φ/EXCL

When DDR

= 0: input

port or

EXCL input

When DDR

= 1 (after

reset):

output

When DDR = 0 (after reset): input port or

EXCL input

When DDR = 1:

φ output

P95/

AS/IOS/CS1

P94/

HWR/IOW

P93/

RD/IOR

Expanded data bus control

output (

AS/IOS, HWR, RD)

I/O port also functioning

as host interface (XBS)

control input (

CS1, IOW,

IOR)

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