HD6432142 datasheet(10/1177 Pages) RENESAS

10 / 1177 page

Rev. 4.00 Sep 27, 2006 page x of xliv

Item

Page

Revision (See Manual for Details)

8.1 Overview

Table 8.3 H8S/2144 Port

Functions

220

Table 8.3 amended

Expanded Modes

Single-Chip Mode

Port

Description

Pins

Mode 1

Mode 2, Mode 3

(EXPE = 1)

Mode 2, Mode 3

(EXPE = 0)

Port A

• 8-bit I/O port PA7 to PA0/

A23 to A16/

KIN15 to KIN8/

CIN15 to CIN8

I/O port also

functioning as

key-sense

interrupt input

(

KIN15 to

KIN8), and

expansion A/D

converter input

(CIN15 to

CIN8)

I/O port also

functioning as

address output (A23

to A16), key-sense

interrupt input

(

KIN15 to KIN8),

and expansion A/D

converter input

(CIN15 to CIN8)

I/O port also functioning as

key-sense interrupt input

(

KIN15 to KIN8) and

expansion A/D converter

input (CIN15 to CIN8)

8.7.2 Register

Configuration

Table 8.14 Port 6

Registers

247

Table 8.14 amended

(Before) System control register

→ (After) System control

8.9.3 Pin Functions

Table 8.19 Port 8 Pin

Functions

258

P81/GA20/CS2 selection method and pin function description

amended

Selection Method and Pin Functions

P81/GA20/

CS2

The pin function is switched as shown below according to the combination of

operating mode, bit CS2E in SYSCR, bit FGA20E in HICR of the HIF, and bit

P81DDR.

Operating

mode

Not slave mode

Slave mode

FGA20E

—

CS2E

—

P81DDR

—

Pin function

P81

input

P81

output

P81

input

P81

output

CS2

input

P81

input

GA20

output

This pin should be used as the GA20 output pin or

CS2 input pin only in mode

2 or 3 (EXPE = 0).

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