HD64F2149YV datasheet(51/1075 Pages) RENESAS

51 / 1075 page

Section 1 Overview

Rev. 3.00 Jan 18, 2006 page 23 of 1044

REJ09B0280-0300

Pin No.

Type

Symbol

FP-100B,

TFP-100B TFP-144 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

142

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–A16

10, 11, 20,

21, 30, 31,

47, 48

33, 34,

35, 37,

38, 39,

40, 41

Output

Address bus (advanced): Outputs

address when 16-Mbyte space is used.

A15–A0

60–67,

72–79

96–110,

112

Output

Address bus: These pins output an

address.

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