ICS9248G-143-T 데이터 시트보기 (PDF) - Integrated Circuit Systems

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ICS9248G-143-T

Frequency Generator & Integrated Buffers for PENTIUM II/III™ & K6

Integrated Circuit Systems 

ICS9248 - 143

Byte 1: CPU, Active/Inactive Register (1 = enable, 0 = disable)

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Pin #

-

46

-

-

39

42

43

45

PWD

1

1

1

1

1

1

1

1

Description

(Reserved)

CPUCLK_F (Act/Inact)

(Reserved)

(Reserved)

SDRAM_F (Act/Inact)

CPUCLK2 (Act/Inact)

CPUCLK1 (Act/Inact)

CPUCLK0 (Act/Inact)

Byte 2: PCI Active/Inactive Register (1 = enable, 0 = disable)

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Pin #

7

18

17

13

12

11

10

8

PWD

1

1

1

1

1

1

1

1

Description

PCICLK_F (Act/Inact)

PCICLK6 (Act/Inact)

PCICLK5 (Act/Inact)

PCICLK4 (Act/Inact)

PCICLK3 (Act/Inact)

PCICLK2 (Act/Inact)

PCICLK1 (Act/Inact)

PCICLK0 (Act/Inact)

Byte 3: SDRAM Active/Inactive Register (1 = enable, 0 = disable)

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Pin #

-

-

-

-

28

29

31

32

PWD

1

1

1

1

1

1

1

1

Description

(Reserved)

(Reserved)

(Reserved)

(Reserved)

SDRAM7 (Active/Inactive)

SDRAM6 (Active/Inactive)

SDRAM5 (Active/Inactive)

SDRAM4 (Active/Inactive)

Notes:

1. Inactive means outputs are held LOW and are disabled from switching.

2. Latched Frequency Selects (FS#) will be inverted logic load of the input frequency select pin conditions.

4

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