SAMA5D3x-EK User Guide
5-1
11180A–ATARM–30-Jan-13
Section 5
Computer Module (CM)
5.1
Board Overview
The CM (CPU Module) board is the heart of the system. It connects to the Main Board through a SO-
DIMM200 interface. It carries the SAMA5D3 series processor and external memories. The CM board
s e r v e s a s a m i n i m a l C P U s u b - s y s t e m . A l l t h e 4 p r o c e s s o r s
SAMA5D31/SAMA5D33/SAMA5D34/SAMA5D35 share the same CM circuitry with minor configuration
settings.
The CM connects to a carrier board containing its connectors, power supply and any expansion I/O,
through a standard gold-plated SODIMM 200-pin connection.
Note:
There are four CM boards from two different manufacturers. The four processors are implemented as
shown in
Table 5-1
below:
The four CM boards share the same circuitry design with different designator information and PCB lay-
outs. The circuitry reference in this guide, for common design parts, refers to schematics from SAMA5D3
series-CM (mfg2). All the other schematics are provided in the
Section 5.4 ”EMBEST Schematics” on
page 5-21
and
Section 5.5 ”RONETIX Schematics” on page 5-22
.
Table 5-1. CM Board Implementation
Manufacturer &
Module Kind
SAMA5D31-CM
SAMA5D33-CM
SAMA5D34-CM
SAMA5D35-CM
EMBEST
X
X
RONETIX
X
X
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