HD6432142 datasheet(258/1177 Pages) RENESAS

258 / 1177 page

Section 8 I/O Ports

Rev. 4.00 Sep 27, 2006 page 214 of 1130

REJ09B0327-0400

Table 8.2

H8S/2147N 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/

PW7 to PW0

Lower address

output

(A7 to A0)

When DDR = 0

(after reset): input

port

When DDR = 1:

lower address

output (A7 to A0) or

PWM timer output

(PW7 to PW0)

I/O port also functioning as

PWM timer output (PW7 to

PW0)

Port 2

• 8-bit I/O port

• Built-in MOS

input pull-

ups

•LED drive

capability

P27/A15/PW15

P26/A14/PW14

P25/A13/PW13

P24/A12/PW12

P23/A11/PW11

P22/A10/PW10

P21/A9/PW9

P20/A8/PW8

Upper address

output

(A15 to A8)

When DDR = 0

(after reset): input

port

When DDR = 1:

upper address

output (A15 to A8),

PWM timer output

(PW15 to PW8), or

output ports (P27 to

P24)

I/O port also functioning as

PWM timer output (PW15

to PW8)

Port 3

• 8-bit I/O port

• Built-in MOS

input pull-

ups

•LED drive

capability

P37 to P30/

HDB7 to HDB0/

D15 to D8

Data bus input/output (D15 to D8)

I/O port also functioning as

host interface data bus

input/output (HDB7 to

HDB0)

Port 4

• 8-bit I/O port P47/PWX1

P46/PWX0

P45/TMRI1/

HIRQ12

P44/TMO1/

HIRQ1

P43/TMCI1/

HIRQ11

P42/TMRI0/

SCK2/SDA1

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), IrDA interface

input/output (IrTxD, IrRxD), and I

bus interface 1 (option) input/output

(SDA1)

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),

host interface host CPU

interrupt request output

(HIRQ12, HIRQ1,

HIRQ11), SCI2 input/

output (TxD2, RxD2,

SCK2), IrDA interface

input/output (IrTxD, IrRxD),

and I

2C bus interface 1

(option) input/output

(SDA1)

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