Intel EP80579 Guide

Intel
®
EP80579 Integrated Processor Product Line—System Memory Interface (DIMM)
Intel
®
EP80579 Integrated Processor Product Line
Platform Design Guide May 2010
117 Order Number: 320068-005US
9.4 System Memory Design Guidelines
The EP80579 has a single channel memory interface. The channel consists of 64 data
and 8 ECC bits. The pinout for the channel has been optimized for a baseboard design
with two DDR2 DIMMs. The DIMM closest to EP80579 is DIMM1, and the farthest is
DIMM0.
As stated in Section 9.3.1, in the 64b configuration, the minimum capacity supported
by the EP80579 is 256 MB and the maximum capacity supported is 4 GB.
The system memory interface can be divided into five signal groups:
• source synchronous (data)
• address/command
•control
•clocks
• DC bias signals
Table 37 summarizes the different signal groupings.
Figure 73. Example of Two Single-Rank DIMM Population
Figure 74. Example of Dual-Rank DIMM Population
EP80579
Single Rank DIMM 1 Single Rank DIMM 0
EP80579
Empty 1
Dual Rank DIMM 0

Intel EP80579 Specifications

General

Brand	Intel
Model	EP80579
Category	Computer Hardware
Language	English