Development Kit User’s Guide
October 2008 Order Number: 320067-002US
15
Product Specification—Intel
®
EP80579 Integrated Processor with Intel
®
QuickAssist
Technology
2.3.4 Marvell* 88E1141 Quad Ethernet Transceiver
The Quad Ethernet transceiver is a Gigabit Ethernet physical layer device (PHY). The
three GbE MAC controllers from the Intel
®
EP80579 Integrated Processor are
connected to a 88E1141 Quad Ethernet Transceiver to provide three GbE RJ45 ports
over copper.
Note: The Intel
®
EP80579 Development Board does not support Wake On LAN (WOL), but the
Intel
®
EP80579 Integrated Processor does support WOL.
2.4 System Memory
The Intel
®
EP80579 Development Board has two DIMM sockets and supports the
following memory features:
• DDR2-400, DDR2-533, DDR2-667, DDR2-800 registered/unbuffered DIMM
• Two single-rank or one dual-rank DIMM(s) (for DDR2-800 MHz, only one single-
rank or dual-rank DIMM on DIMM 0 slot is supported)
• ECC or Non-ECC (with ECC enabled, SEC/DED are supported)
• Total system memory: Minimum 256 MB and maximum 4 GB
• 256 Mbit, 512 Mbit, 1 Gbit, and 2 Gbit density parts in the x8 configuration
Table 4 shows the memory configurations that are supported by the Intel
®
EP80579
Development Board.
Note: Certain restrictions apply when two ranks are used. Both ranks need to be either:
• Registered or unbuffered. Mixing of registered and unbuffered ranks is not
supported.
• 64-bit mode only. 32-bit mode does not supported dual rank.
Table 4. DDR2 Memory Configuration
DDR2
1
Frequency
DIMM 1 DIMM 0
400 Registered Registered
400 Empty Registered
400 Unbuffered Unbuffered
400 Empty Unbuffered
533 Registered Registered
533 Empty Registered
533 Unbuffered Unbuffered
533 Empty Unbuffered
667 Registered Registered
667 Empty Registered
667 Unbuffered Unbuffered
667 Empty Unbuffered
800 Empty Registered
800 Empty Unbuffered
1. Actual supported frequencies are determined by the
SKU used.
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