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Functional Overview

2.5 Clock Module

REJ10J0952-0100

2.5 Clock Module

The clock module in the M3A-HS25 consists of the following two blocks:

•

Output from a oscillator connected to EXTAL of the SH7125

Ceramic resonator connected to EXTAL and XTAL

The M3A-HS25 has a 12.5MHz oscillator connected to it as standard specification.

Figure2.5.1 shows the block diagram of clock module.

CLK

Oscillator

SH7125

EXTAL

XTAL

Ceramic Resonators

12.5MHz

: Not mounted

R21

*：To mount the ceramic oscillator, remove R21.

Figure2.5.1 Block Diagram of Clock Module

Rev.1.0 July 21, 2006 2-7

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