Intel VC820 Design Guide - Page 133
Table 4-3. Intel, Chipset Platform System Clock Cross-Reference, CK133/DRCG Pin Name, Component
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Clocking Table 4-3. Intel® 820 Chipset Platform System Clock Cross-Reference CK133/DRCG Pin Name PCICLK 3V66 48 MHz CPUCLK CPU_div2 APIC Clk/ClkB1 CFM/CFM#1,2 PclkM SynclkN Component PCI Slot PCI Slot PCI Slot PCI Slot PCI Slot ICH LPC Super I/O FWH Flash BIOS MCH ICH AGP Connector (on-board device) ICH CPU CPU MCH DRCG CPU CPU ICH RDRAMs MCH RDRAMs MCH MCH NOTES: 1. Differential Clocking Pair 2. CFM/CFM# driven by MCH Pin Name CLK CLK CLK CLK CLK PCICLK-F CLK CLK GCLKIN CLK66 CLK CLK48 BCLK BCLK HCLKIN Refclk PICCLK PICCLK APICCLK CTM/CTM# HCLKOUT RCLKOUT Intel®820 Chipset Design Guide 4-5
Intel
®
820 Chipset
Design Guide
4-5
Clocking
NOTES:
1. Differential Clocking Pair
2. CFM/CFM# driven by MCH
Table 4-3. Intel
®
820 Chipset Platform System Clock Cross-Reference
CK133/DRCG Pin Name
Component
Pin Name
PCICLK
PCI Slot
CLK
PCI Slot
CLK
PCI Slot
CLK
PCI Slot
CLK
PCI Slot
CLK
ICH
PCICLK-F
LPC Super I/O
CLK
FWH Flash BIOS
CLK
3V66
MCH
GCLKIN
ICH
CLK66
AGP Connector (on-board device)
CLK
48 MHz
ICH
CLK48
CPUCLK
CPU
BCLK
CPU
BCLK
MCH
HCLKIN
CPU_div2
DRCG
Refclk
APIC
CPU
PICCLK
CPU
PICCLK
ICH
APICCLK
Clk/ClkB
1
RDRAMs
MCH
CTM/CTM#
CFM/CFM#
1,2
RDRAMs
PclkM
MCH
HCLKOUT
SynclkN
MCH
RCLKOUT