HD6432142 datasheet(262/1177 Pages) RENESAS

262 / 1177 page

Section 8 I/O Ports

Rev. 4.00 Sep 27, 2006 page 218 of 1130

REJ09B0327-0400

Table 8.3

H8S/2144 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

• Built-in 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

• Built-in 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

• Built-in MOS

input pull-

ups

•LED drive

capability

P37 to P30/

D15 to D8

Data bus input/output (D15 to D8)

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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