System Memory Design Guidelines; Example Of Two Single-Rank Dimm Population; Example Of Dual-Rank Dimm Population - Intel EP80579 Manual

Figure 73.

Example of Two Single-Rank DIMM Population

Figure 74.

Example of Dual-Rank DIMM Population

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
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.
®
Intel EP80579 Integrated Processor Product Line
Platform Design Guide
117
®
Intel EP80579 Integrated Processor Product Line—System Memory Interface (DIMM)
EP80579
EP80579
Section 9.3.1, in the 64b configuration, the minimum capacity supported
May 2010
Order Number: 320068-005US