M37151M6 datasheet(70/138 Pages) RENESAS

Part #	M37151M6

Description	SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER

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Manufacturer	RENESAS [Renesas Technology Corp]

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70 / 138 page

M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP

Rev.1.00

Nov 01, 2002

page 70 of 136

REJ03B0129-0100Z

8.11.3 Clock for OSD

The following 2 types of clocks can be selected for OSD display:

•

Data slicer clock output from the data slicer (approximately 26 MHz)

•

OSD clock f (osc) generated based on the reference clock from

pin XIN.

The OSD clock for each block can be selected by bits 3 and 4 of the

clock source control register (addresses 00D016).

Fig. 8.11.12 Block Diagram of OSD Selection Circuit

Data slicer circuit

Data slicer clock

(See note)

CC mode block

OSD mode block

Note : To use data slicer clock, set bit 0 of data slicer control register 1 to “1.”

When use the clock for OSD generated based on the main clock,

set the bit 0 of the clock control register 1 to “0.”

“0”

“1”

OC3

OC4

f(osc)

Fig. 8.11.13 Clock control register 1

Clock control register 1

Clock control register 1 (CC1) [Address 00CD16]

b7 b6 b5 b4 b3 b2 b1 b0

0

000

0

System clock generating

circuit control bit (CC10)

0: Operation

1: Stop

Fix these bits to "0"

1 to

7

Name

B

Functions

After reset R W

R W

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