Renesas M3A-HS25 - Manual (Page 21)

Functional Overview
2.5 Clock Module
REJ10J0952-0100
2
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