C9812
C9812 is Low EMI Clock Generator manufactured by Cypress.
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APPROVED PRODUCT
Low EMI Clock Generator for Intel 810E Chipset Systems
Product Features
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- - Intel’s 810E clock solution 3 copies of CPU Clock (CPU[0:1] and CPU_ITP) 9 copies of SDRAM Clock (SDRAM[0:7] and DCLK) 8 copies of PCI Clock 2 copies of 3V66 Clock 2 copies of APIC Clock, synchronous to PCI Clock 1 REF Clock 1 USB Clock (Non SSC) 1 DOT Clock (Non SSC) Power Down Feature Spread Spectrum Support SMBUS Support for turning off unused clocks
Frequency Table (MHz)
SEL2 X X 0 0 1 SEL1 0 0 1 1 1 SEL0 0 1 0 1 X CPU Tristate 66.6 100 133.3
Table 1
SDRAM Tristate 100 100 100
PCI Tristate 33.3 33.3 33.3
Test mode (see table2)
Note: The...
