Ep80579 External Clock Requirements - Intel EP80579 Manual

Table 4. Development Board Feature List (Sheet 3 of 3)
Feature
Physical interface
Thermal Solution
CPU
Memory
Chassis
Fan headers
Other
Power supply
Power Supply
Connectors
Voltage
margining
Clock chip
Clock buffer
Buttons
Status LED
Indicators
TPM
Local Expansion
Bus (LEB)
CAN
TDM
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.
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.
Table 5.

EP80579 External Clock Requirements

Clock Domain
CLKP100/CLKN100
PEA_CLK(p/n)
RTCX1/RTCX2
PCICLK
UART_CLK
®
Intel EP80579 Integrated Processor Product Line
Platform Design Guide
30
®
Intel EP80579 Integrated Processor Product Line—System Overview
Board Implementation
Copper via 3 RJ-45
Heat sink - COTS per TMAE recommendation
None
None
Two 3-pin +12V fan headers
a) CPU fan - variable speed control and temperature
monitoring by SIO
b) Optional Misc fan - fixed +12V
+12V, -12V, +5V, +3.3V, +5VSB
10-pin (Insertion Polarity Header)
SMA connector for each major on-board voltage
regulator
CK410
DB800
Reset, Power, Sleep
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#
Trusted Platform Module 1.2
StrataFlash and Compact Flash support
Two CAN connectors - 2x5 Headers with pin 10 key
3x slots TDM Mezzanine slots
Table 5 shows the external clocks requirements for EP80579.
Frequency
100 MHz (diff)
100 MHz (diff)
32.768 MHz
33 MHz
48 MHz
connectors include LEDs and
magnetics
support for Active Cooler
fan header provided
ATX or ATX12V
Atmel*
2xStrataFlash (2F128P30) and
additional Compact Flash
connector
Source Description
External IA-32 core Clock
External PCIe Clock
External RTC Cystal
External PCI/LPC Reference Clock
External Serial Interface (UART) Clock
Order Number: 320068-005US
Comments
May 2010