ICS9248-110 Datasheet, PDF(9/14 Page) Integrated Circuit Systems

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ICS9248-110 Datasheet, PDF (9/14 Pages) Integrated Circuit Systems – AMD-K7TM System Clock Chip

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ICS9248-110

I2C Command Bitmaps

Byte 4: Clock Control Register

Bit Pin# Default

Description

1 REF0 enable

6 23

1 24MHz/48MHz enable

5 22

1 USB0 enable

4 20

1 AGP1 enable

3 19

1 AGP0 enable

2 42, 43 1 CPUCLK2 enable (both of differential pair, True" and "Complimentary"

1 39, 40 1 CPUCLK1 enable (both of differential pair, True" and "Complimentary"

0 36, 37 1 CPUCLK0 enable (both of differential pair, True" and "Complimentary"

Notes: A value of '1'b is enable, '0'b is disable

Byte 5: PCI Clock Control Register

Bit Pin# Default

1 REF1 enable

6 17

1 PCICLK6 enable

5 16

1 PCICLK5 enable

4 14

1 PCICLK4 enable

3 13

1 PCICLK3 enable

2 11

1 PCICLK2 enable

1 10

1 PCICLK1 enable

1 PCICLK0 enable

Notes: A value of '1'b is enable, '0'b is disable

Description

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