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ICS952702

Integrated Circuit Systems
Part Number ICS952702
Manufacturer Integrated Circuit Systems
Description Programmable Timing Control Hub for K7 System
Published Jan 22, 2006
Detailed Description Integrated Circuit Systems, Inc. ICS952702 Programmable Timing Control Hub for K7TM System Recommended Application: Si...
Datasheet PDF File ICS952702 PDF File

ICS952702
ICS952702

Overview
Integrated Circuit Systems, Inc.
ICS952702 Programmable Timing Control Hub for K7TM System Recommended Application: SiS746/746FX style chipset Output Features: • 1 - Pair of differential open drain CPU outputs • 1 - Single-ended open drain CPU output • 8 - PCICLK @ 3.
3V including 2 PCI clock free running • 2 - AGPCLK @ 3.
3V • 3 - REF @ 3.
3V • 2 - ZCLK @ 3.
3V • 2 - IOAPIC @ 2.
5V • 1 - 12_48MHz @ 3.
3V • 1 - 24_48MHz @ 3.
3V Key Specifications: • CPU Output Jitter <250ps • AGP Output Jitter <250ps • ZCLK Output Jitter <250ps • PCI Output Jitter <500ps • CPU-AGP/PCI/ZCLK skew: 2.
5ns~3.
5ns Pin Configuration VDDREF 1 **FS0/REF0 2 **FS1/REF1 3 **FS4/REF2 4 GNDREF 5 X1 6 X2 7 GNDZ 8 ZCLK0 9 ZCLK1 10 VDDZ 11 *PCI_STOP# 12 VDDPCI 13 **FS2/PCICLK_F0 14 *FS3/PCICLK_F1 15 PCICLK0 16 PCICLK1 17 GNDPCI 18 VDDPCI 19 PCICLK2 20 PCICLK3 21 PCICLK4 22 PCICLK5 23 GNDPCI 24 48 VDDLAPIC 47 IOAPIC1 46 IOAPIC0 45 GNDAPIC 44 CPU_STOP#* 43 CPUCLKODT1 42 RESET# 41 GNDCPU 40 CPUCLKODT0 39 CPUCLKODC0 38 VDDCPU 37 AGND 36 AVDD 35 SCLK 34 SDATA 33 PD#* 32 GNDAGP 31 AGPCLK0 30 AGPCLK1 29 VDDAGP 28 AVDD48 27 12_48MHz/SEL12#_48MHz* 26 24_48MHz/SEL24#_48MHz** 25 GND48 Features/Benefits: • Selectable synchronous/asynchronous AGP/PCI frequency • Programmable output frequency.
• Programmable output divider ratios.
• Programmable output rise/fall time.
• Programmable output skew.
• Programmable spread percentage for EMI control.
• Watchdog timer technology to reset system if system malfunctions.
• Programmable watch dog safe frequency.
• Support I2C Index read/write and block read/write operations.
• Uses external 14.
318MHz reference or XTAL input.
Functionality Bit4 FS4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Bit3 FS3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 Bit2 FS2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 Bit1 FS1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 Bit0 FS0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 ...


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