Kontron COMe-bCD2 - Manual (Page 11)

2 Introduction
Kontron User's Guide ETXexpress® CD 11
2.4 Understanding COM Express® functionality
All Kontron COM Express® basic and compact modules contain two connectors, each of which has two
rows. The primary connector has two rows called Row A and Row B. The secondary connector has two
rows called Row C and Row D.
The primary connector (Row A and Row B) feature the following legacy-free functionality:
Ethernet
Serial ATA (SATA)
USB 2.0
LVDS/VGA and dual display video
Intel High Definition Audio (Azalia)
LPC, an Intel proprietary low-pin count (LPC), which supports low-speed devices such
as RS-232 serial and parallel ports.
The secondary connector (Row C and Row D) provides support for the following buses and I/O:
PCI Express
PCI
IDE
2.5 COM Express® Documentation
This product manual serves as one of three principal references for an COM Express® design. It
documents the specifications and features of COMe-bCD2. The other two references, which are available
from your Kontron Support, include:
The COMexpress Specification define the module form factor, pinout, and signals.
The Carrier Board Design Guide serves as a general guide for baseboard design, with a
focus on maximum flexibility to accommodate a wide range of COM Express®
modules.
Note: Some of the information contained within this product manual applies only to certain product revisions (CE:
xxx). If certain information applies to specific product revisions (CE: xxx) it will be stated. Please check the
product revision of your module to see if this information is applicable.