Specifications

QSSC-S4R Technical Product Specification Main Board
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Figure 4. Main Board Clock Block Diagram
CK410B supports SSC (Spread Spectrum Clocking) and SRC’s (Serial Reference Clocks), and supplies the following
clock outputs:
x 4x 0.7V current-mode differential CPU pairs (processors, IOH QPI) (strapped to 133 MHz specific for Boxboro-EX
platform).
x 5x 0.7V current-mode differential 100MHz SRC pairs.
x 4x PCI (33MHz.)
x 3x free-running PCI (33MHz.)
x 1x 48MHz.
x 2x 14.318MHz reference
2.3.6.1.1 CK MNG
CKMNG supports SSC (Spread Spectrum Clocking) and SRC’s (Serial Reference Clocks), and supplies the following
clock outputs:
x 1x 0.7V current-mode differential CPU pair to IOH ME
x 8x 50MHz 3.3V RMII outputs, two to the Intel® 82576-NS (Kawela) LAN controllers, two to iBMC RMII interface,
one to RMM 3
x 1 - DOT 96MHz output no use
x 1 - 33.33MHz output no use
x 1 - 32.768KHz output no use
x 2 - 25MHz REF outputs no use