Kontron ETXexpress-AI - Manual (Page 9)

Kontron ETXexpress-AI User’s Guide
4
including the PCI bus, PCI Express*, Serial ATA (SATA), and parallel ATA
(PATA).
» ETXexpress® modules are Kontron COM Express™ modules in the basic form
factor (125mm x 95mm)
» microETXexpress® modules are Kontron COM Express™ modules in a compact form
factor (95mm x 95mm)
» nanoETXexpress® modules are Kontron COM Express™ compatible modules in an
ultra-small form factor that follow pin-out type 1 or type 10 (55mm x 84mm)
2.3 Understanding the COM Functionality
All Kontron microETXexpress® and ETXexpress® modules contain two connectors
(X1A and X1B), each with two rows. The primary connector rows are Row A and
Row B (connector X1A). The secondary connector rows are Row C and Row D
(connector X1B). There are a few different orderable SKUs for the EXTexpress-
AI module; one for a module that uses COM Express connector Type 2 and
another SKU for a version using the new pin-out Type 6 connector. Additional
SKUs for ETXexpress-AI modules that support non-ECC memory are also
available. Type 6 is a new addition to the PICMG COM Express standard and it
is documented in Revision 2.0 of the PICMG specification. The Type 6 pin-out
is based on Type 2 and also supports new features on the secondary connector
(rows C and D). The key changes are:
» The PCI interface is no longer supported and the pins are used instead for
digital display interfaces (DDI) and two additional PCI Express lanes
» The IDE (PATA) parallel interface is no longer supported and the pins are
used instead for additional transmit and receive pairs for four USB 3.0
ports. (USB 3.0 is not supported on the ETXexpress-AI module.)
» Three dedicated DDI ports have been added. Ports 1, 2, and 3 can be
configured individually for Display Port (DP), HDMI, or DVI and port 1 can
also be used for SDV0.
» SDVO is no longer supported on the PEG port. Instead SDVO is multiplexed on
DDI port 1.
» Two optional two-wire RS232 serial ports have been added using pins
formerly assigned to 12V signals.
The primary connector (Row A and Row B) on the ETXexpress®-AI COM features
the following functionality:
» Analog VGA graphics
» LVDS 24-bit dual channel
» Gigabit Ethernet LAN
» Serial ATA (SATA)
» PCI Express*