Intel
®
EP80579 Integrated Processor Product Line—System Overview
Intel
®
EP80579 Integrated Processor Product Line
Platform Design Guide May 2010
30 Order Number: 320068-005US
2.3 EP80579 External Clock Requirements
External clocks are supplied to EP80579 internal PLLs as the reference clocks and to
other I/O devices. EP80579 has internal PLLs that use these reference clocks to
generate internal clocks. Table 5 shows the external clocks requirements for EP80579.
These clocks shall always be sourced by the platform to EP80579 in all designs,
regardless of whether the referenced interface is implemented or not implemented on
the board.
Physical interface Copper via 3 RJ-45
connectors include LEDs and
magnetics
Thermal Solution
CPU Heat sink - COTS per TMAE recommendation support for Active Cooler
Memory None fan header provided
Chassis None
Fan headers
Two 3-pin +12V fan headers
a) CPU fan - variable speed control and temperature
monitoring by SIO
b) Optional Misc fan - fixed +12V
Other
Power supply +12V, -12V, +5V, +3.3V, +5VSB ATX or ATX12V
Power Supply
Connectors
10-pin (Insertion Polarity Header)
Voltage
margining
SMA connector for each major on-board voltage
regulator
Clock chip CK410
Clock buffer DB800
Buttons Reset, Power, Sleep
Status LED
Indicators
1.2V, 1.8V, 1.8V VSBY, 2.5V, 3.3V, 5.0V, 5.0V VSBY,
CPU core, CPU RESET#, CPU THERMPRIP#, CPU
PROCHOT#, INT33V#, IERR#, HD Activity, SYS RESET.
SLP_S3#
TPM Trusted Platform Module 1.2 Atmel*
Local Expansion
Bus (LEB)
StrataFlash and Compact Flash support
2xStrataFlash (2F128P30) and
additional Compact Flash
connector
CAN Two CAN connectors - 2x5 Headers with pin 10 key
TDM 3x slots TDM Mezzanine slots
Table 4. Development Board Feature List (Sheet 3 of 3)
Feature Board Implementation Comments
Table 5. EP80579 External Clock Requirements
Clock Domain Frequency Source Description
CLKP100/CLKN100 100 MHz (diff) External IA-32 core Clock
PEA_CLK(p/n) 100 MHz (diff) External PCIe Clock
RTCX1/RTCX2 32.768 MHz External RTC Cystal
PCICLK 33 MHz External PCI/LPC Reference Clock
UART_CLK 48 MHz External Serial Interface (UART) Clock
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