Advantech SOM 144, Техническое задание

Страница: 8 / 40

2 SOM 144 Design Specification Rev.1.0
1.1 Overview
SOM 144 is a new form factor to speed up developing embedded systems.
Simply put, it takes one SODIMM plus a front-end
connector on a 2.5-inch-Hard-Drive-size PC board. Through the
interface of the SODIMM transfer most of the common signals, such as
PCI and USB interfaces for most of peripheral devices and IDE interface
for Hard-Drive, CD-ROM, or Compact Flash. At the same time, special
signals or other function requests go through the
front-end connector.
Based on this specification, it is easier to develop a customer’s
solution board with an off the shelf SOM 144 module and reduce the time
to market of your product. With the SODIMM socket and within 5 sec, a
SOM 144 module is easy to install into or unload from
customer’s solution board.
This standard is a reference for board dimension and pinout of SOM 144
module. Different SOM 144 module may provide a different set of fea-
tures. Please refer the datasheet or manual of your SOM 144
module for details or consult your supplier for supported features. SOM
144 modules are only interchangeable as long as they provide the same
features. At this point, without changing customers’
solution board, customers can upgrade the system module with
higher performance CPU immediately. Some non-standard features like
LCD display interface are not usable without external parts. To create a
backplane or customer’s solution board for SOM 144 module, it’s highly
recommended having experience with PCI device
development. Furthermore, experience with signal integrity and
timing for the layout of your solution board is recommended.
Please contact you supplier or Advantech for advice.
In addition to this document, the user should refer to the following indus-
try standard specifications:
PCI Bus specification Rev 2.2
USB specification 1.1
ATX specification
AC97 Specification Revision 1.3, 2.0, and 2.1
HIROSE Catalog FX8 SERIES