ICS932S805C datasheet(7/20 Pages) RENESAS

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ICS932S805C

K8 Clock Chip for Serverworks HT2100 Servers

IDT®

K8 Clock Chip for Serverworks HT2100 Servers

1131D – 05/04/10

SMBus Table: Frequency Select and Spread Control Register

Pin #

Name

Control Function

Type0

1PWD

Bit 7

FS Source

Latched Input or SMBus Frequency

Select

RW Latched Inputs

SMBus

Bit 6

Spread

Spectrum

Enable

Spread Enable for CPU, SRC and PCI Outputs.

Setting SPREAD_EN pin to '1', forces

Spread ON and overides this bit.

OFF

Bit 5

Reserved

Bit 4

Reserved

Bit 3

FS3

Freq Select Bit 3

Latched

Bit 2

FS2

Freq Select Bit 2

Latched

Bit 1

FS1

Freq Select Bit 1

Latched

Bit 0

FS0

Freq Select Bit 0

Latched

SMBus Table: Output Control Register

Pin #

Name

Control Function

Type0

1PWD

Bit 7

REF2

Output Enable

Disable (Low)

Enable

Bit 6

REF1

Output Enable

Disable (Low)

Enable

Bit 5

REF0

Output Enable

Disable (Low)

Enable

Bit 4

PCICLK1

Output Enable

Disable (Low)

Enable

Bit 3

PCICLK0

Output Enable

Disable (Low)

Enable

Bit 2

48MHz_2

Output Enable

Disable (Low)

Enable

Bit 1

48MHz_1

Output Enable

Disable (Low)

Enable

Bit 0

48MHz_0

Output Enable

Disable (Low)

Enable

SMBus Table: Output Control Register

Pin #

Name

Control Function

Type0

1PWD

Bit 7

Reserved

Bit 6

CPUCLK8(6)

Disable

Enable

Bit 5

CPUCLK8(5)

Disable

Enable

Bit 4

CPUCLK8(4)

Disable

Enable

Bit 3

CPUCLK8(3)

Disable

Enable

Bit 2

CPUCLK8(2)

Disable

Enable

Bit 1

CPUCLK8(1)

Disable

Enable

Bit 0

CPUCLK8(0)

Disable

Enable

Byte 1

Byte 2

47/46

45/44

59/58

57/56

53/52

51/50

43/42

Byte 0

Output Enable

When Disabled

CPUCLKT = 0

CPUCLKC = 1

See CPU Frequency Select

Table

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