Intel EP80579

Intel
®
EP80579 Integrated Processor Product Line May 2010
Order Number: 320068-005US 31
System Overview—Intel
®
EP80579 Integrated Processor Product Line
SATA_CLKREF(p/n) 100 MHz External SATA Reference Clock
CLK48 (USB) 48 MHz External USB Clock
CLK14 14.31818 MHz External Timer Oscillator Clock
GBE_REFCLK
125 MHz (RGMII)/
50 MHz (RMII)
External GBE Reference Clock
GBE_REFCLK_RMII
100 Ω pull-down (RGMII) /
50 MHz (RMII)
External RMII Reference Clock
EX_CLK 33/80 MHz External Expansion Bus Clock
Table 5. EP80579 External Clock Requirements
Clock Domain Frequency Source Description