HD6432142 datasheet(74/1177 Pages) RENESAS

74 / 1177 page

Section 1 Overview

Rev. 4.00 Sep 27, 2006 page 30 of 1130

REJ09B0327-0400

Pin No.

Type

Symbol

FP-100B

TFP-100B

I/O

Name and Function

HDB7 to

HDB0

89 to 82

Input/

output

Host interface data bus: Bidirectional 8-bit bus for

accessing the host interface.

Host

interface

(HIF)

CS1,

CS2,

ECS2

CS3,

CS4

18, 94, 25

81, 80

Input

Chip select 1, 2, 3, and 4: Input pins for selecting

host interface channel 1 to 4.

IOR

Input

I/O read: Input pin that enables reading from the

host interface.

IOW

Input

I/O write: Input pin that enables writing to the host

interface.

HA0

Input

Command/data: Input pin that indicates whether

an access is a data access or command access.

GA20

Output GATE A20: A20 gate control signal output pin.

HIRQ11

HIRQ1

HIRQ12

HIRQ3

HIRQ4

Output Host interrupt 11, 1, 12, 3, and 4: Output pins for

interrupt requests to the host.

HIFSD

Input

Host interface shutdown: Control input pin used

to place host interface input/output pins in the high-

impedance/cutoff state.

Keyboard

control

KIN0 to

KIN15

26 to 29,

32 to 35, 48,

47, 31, 30,

21, 20, 11,

Input

Keyboard input: Matrix keyboard input pins.

Normally, P10 to P17 and P20 to P27 are used as

key-scan outputs. This enables a maximum 16-

output

× 16-input, 256-key matrix to be configured.

AN7 to

AN0

45 to 38

Input

Analog input: A/D converter analog input pins.

A/D

converter

(ADC)

CIN0 to

CIN15

26 to 29,

32 to 35,

48, 47, 31,

30, 21, 20,

11, 10

Input

Expansion A/D inputs: Expansion A/D input pins

can be connected to the A/D converter, but since

they are also used as digital input/output pins,

precision will fall.

ADTRG

Input

A/D conversion external trigger input: Pin for

input of an external trigger to start A/D conversion.

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