SH7751 Datasheet, PDF(372/1224 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer

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SH7751 Datasheet, PDF (372/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

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10. Clock Oscillation Circuits

2. For the ranges input clock frequency, see the description of the EXTAL clock input

frequency (fEX) and the CKIO clock output (fOP) in section 23.3.1, Clock and Control

Signal Timing.

Table 10.4 FRQCR Settings and Internal Clock Frequencies

FRQCR

(Lower 9 Bits)

CPU Clock

Frequency Division Ratio of Frequency Divider 2

Bus Clock

Peripheral Module Clock

H'000

1

H'002

H'004

H'008

1

1/2

1/4

1/8

1/2

1/2

H'00A

H'00C

H'011

H'013

H'01A

H'01C

H'023

1/4

1/8

1/3

1/3

1/6

1/4

1/4

1/8

1/6

1/6

H'02C

1/8

1/8

H'048

1/2

1/2

1/2

H'04A

1/4

H'04C

1/8

H'05A

1/4

1/4

H'05C

1/8

H'063

1/6

1/6

H'06C

1/8

1/8

H'091

1/3

1/3

1/3

H'093

1/6

H'0A3

1/6

1/6

H'0DA

1/4

1/4

1/4

H'0DC

1/8

H'0EC

1/8

H'123

1/6

1/6

1/6

H'16C

1/8

1/8

1/8

Note: Do not set values other than those shown in the table for the lower 9 bits of FRQCR.

Rev.4.00 Oct. 10, 2008 Page 274 of 1122

REJ09B0370-0400

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