HD6432138SW datasheet(247/1061 Pages) RENESAS

247 / 1061 page

Section 8 I/O Ports

Rev. 4.00 Jun 06, 2006 page 193 of 1004

REJ09B0301-0400

Table 8.2

H8S/2134 Group Port Functions

Expanded Modes

Single-Chip Mode

Port

Description

Pins

Mode 1

Mode 2, Mode 3

(EXPE = 1)

Mode 2, Mode 3

(EXPE = 0)

Port 1 • 8-bit I/O port

•On-chip

MOS input

pull-ups

•LED drive

capability

P17 to P10/

A7 to A0

Lower address

output (A7 to

A0)

When DDR = 0

(after reset): input

port

When DDR = 1:

lower address

output (A7 to A0)

I/O port

Port 2 • 8-bit I/O port

•On-chip

MOS input

pull-ups

•LED drive

capability

P27 to P20/

A15 to A8

Upper address

output (A15 to

A8)

When DDR = 0

(after reset): input

port

When DDR = 1:

upper address

output (A15 to A8)

or output port (P27

to P24)

I/O port

Port 3 • 8-bit I/O port

•On-chip

MOS input

pull-ups

•LED drive

capability

P37 to P30/

D7 to D0

Data bus input/output (D7 to D0)

I/O port

Port 4 • 8-bit I/O port P47/PWX1

P46/PWX0

P45/TMRI1

P44/TMO1

P43/TMCI1

P42/TMRI0/SCK2

P41/TMO0/RxD2/

IrRxD

P40/TMCI0/TxD2/

IrTxD

I/O port also functioning as 14-bit PWM timer output (PWX1,

PWX0), 8-bit timer 0 and 1 input/output (TMCI0, TMRI0, TMO0,

TMCI1, TMRI1, TMO1), SCI2 input/output (TxD2, RxD2, SCK2),

and IrDA interface input/output (IrTxD, IrRxD)

Port 5 • 3-bit I/O port P52/SCK0

P51/RxD0

P50/TxD0

I/O port also functioning as SCI0 input/output (TxD0, RxD0,

SCK0)

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