HD6432148SW datasheet(71/1177 Pages) RENESAS

71 / 1177 page

Section 1 Overview

Rev. 4.00 Sep 27, 2006 page 27 of 1130

REJ09B0327-0400

Pin No.

Type

Symbol

FP-100B

TFP-100B

I/O

Name and Function

Operating

mode

control

MD1

MD0

Input

Mode pins: These pins set the operating mode.

The relation between the settings of pins MD1 and

MD0 and the operating mode is shown below.

These pins should not be changed while the MCU

is operating.

MD1

MD0

Operating

Mode

Description

Mode 1

Normal

Expanded mode with

on-chip ROM disabled

Mode 2

Advanced

Expanded mode with

on-chip ROM enabled or

single-chip mode

Mode 3

Normal

Expanded mode with

on-chip ROM enabled or

single-chip mode

System

control

RES

Input

Reset input: When this pin is driven low, the chip is

reset.

RESO

100

Output Reset output: Outputs reset signal to external

device.

STBY

Input

Standby: When this pin is driven low, a transition is

made to hardware standby mode.

Address

bus

A23 to

A16

10, 11, 20,

21, 30, 31,

47, 48

Output Address bus (advanced): Outputs address when

16-Mbyte space is used.

A15 to

60 to 67,

72 to 79

Output Address bus: These pins output an address.

Data bus

D15 to

89 to 82

Input/

output

Data bus (upper): Bidirectional data bus.

Used for 8-bit data and upper byte of 16-bit data.

D7 to

57, 58, 68,

69, 80, 81,

90, 91

Input/

output

Data bus (lower): Bidirectional data bus.

Used for lower byte of 16-bit data.

HD6432148SW Datasheet(PDF) 71 Page - Renesas Technology Corp

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