Integrated

Circuit

Systems, Inc.

ICS952802

Advance Information

0731—09/18/02

Pin Configuration

Recommended Application:

SiS755/760 style chipset for AMD K8 Processor

Output Features:

•

2 - Pairs of differential push-pull K8CPU outputs

•

10 - PCICLK @ 3.3V

•

2 - AGPCLK @ 3.3V

•

3 - REF @ 3.3V

•

2 - ZCLK @ 3.3V

•

1 - 24_48MHz @ 3.3V

•

1 - 12_48MHz @ 3.3V

•

1 - PCI_12MHz @ 3.3V

Key Specifications:

•

CPU Output Jitter <250ps

•

AGP Output Jitter <250ps

Programmable Timing Control Hub™ for P4™ processor

Functionality

Features/Benefits:

•

Selectable synchronous/asynchronous AGP/PCI/ZCLK

frequency

•

Linear Programmable output frequency.

•

Programmable output divider ratios.

•

Programmable output rise/fall time.

•

Programmable output skew.

•

Programmable spread percentage for EMI control.

•

Watchdog timer technology and system reset function

•

Programmable watch dog safe frequency.

•

Support I2C Index read/write and block read/write

operations.

•

Uses external 14.318MHz reference input.

ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.

ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.

VDDREF 1

48 CPU_STOP#/Reset#*

*FS0/REF0 2

47 GNDCPU

**FS1/REF1 3

46 CPUCLK8T1

**FS2/REF2 4

45 CPUCLK8C1

GNDREF 5

44 VDDCPU

X1 6

43 VDDCPU

X2 7

42 CPUCLK8T0

GNDZ 8

41 CPUCLK8C0

ZCLK0 9

40 GNDCPU

ZCLK1 10

39 AGND

VDDZ 11

38 AVDD

*PCI_STOP#/PCICLK8 12

37 PD#*

**FS3/PCICLK_F0 13

36 GNDAGP

**FS4/PCICLK_F1 14

35 AGPCLK0

VDDPCI 15

34 AGPCLK1

GNDPCI 16

33 VDDAGP

PCICLK0 17

32 SCLK

PCICLK1 18

31 AVDD48

PCICLK2 19

30 12_48MHz/SEL12_48#**

PCICLK3 20

29 24_48MHz/SEL24_48#*~

PCICLK4 21

28 GND48

PCICLK5 22

27 SDATA

GNDPCI 23

26 PCICLK7/12MHz/SELPCI_12#**

VDDPCI 24

25 PCICLK6/SEL_Reset#*

48-SSOP

* Internal Pull-Up Resistor

** Internal Pull-Down Resistor

~ This Output has 1.5X Drive Strength

Bit4

Bit3

Bit2

Bit1

Bit0

CPU

ZCLK

AGP

PCI

FS4

FS3

FS2

FS1

FS0

MHz

MHz

MHz

MHz

00000

160.00

106.66

53.33

26.66

00001

200.00

133.33

66.67

33.33

00010

200.00

133.33

66.67

33.33

00011

200.00

160.00

66.67

33.33

00100

186.66

106.67

53.33

26.66

00101

233.33

133.33

66.67

33.33

00110

233.33

133.33

66.67

33.33

00111

233.33

155.55

66.67

33.33

01000

213.34

106.66

53.33

26.66

01001

266.67

133.33

66.67

33.33

01010

266.67

133.33

66.67

33.33

01011

266.67

160.00

66.67

33.33

01100

133.34

106.66

53.33

26.66

01101

166.67

133.33

66.67

33.33

01110

166.67

133.33

66.67

33.33

01111

166.67

166.66

66.67

33.33

10000

206.00

137.33

68.67

34.33

10001

210.00

140.00

70.00

35.00

10010

202.00

134.66

67.33

33.66

10011

202.00

161.60

67.33

33.66

10100

240.33

137.33

68.67

34.33

10101

245.00

140.00

70.00

35.00

10110

235.66

134.67

67.33

33.66

10111

235.66

157.11

67.33

33.66

11000

106.66

106.66

53.33

26.66

11001

133.33

133.33

66.67

33.33

11010

133.33

133.33

66.67

33.33

11011

133.33

177.77

66.67

33.33

11100

171.67

137.33

68.67

34.33

11101

175.00

140.00

70.00

35.00

11110

168.34

134.66

67.33

33.66

1

1

1

1

1

168.34

168.33

67.33

33.66