COMe-bV26 - Rev. 1.0, User Guide
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Memory size
Memory module (#G) /eMMC pseudo SLC memory (#S)
1.3.
COM Express® Documentation
The COM Express® specification defines the COM Express® module form factor, pinout and signals. For more
information about the COM Express® specification, visit the PCI Industrial Computer Manufacturers Group (PICMG®)
website.
1.4.
COM Express® Functionality
All Kontron COM Express® basic modules contain two 220-pin connectors, each of which has two rows called row
A & B on the primary connector and row C & D on the secondary connector. The COM Express® basic type 6 Computer-
On-Module (COM) features the following maximum amount of interfaces according to the PICMG module pinout type.
Table 1: Type 6 and COM-bV26 Functionality
Feature
Type 6
COM-bV26
HD Audio
1x
1x
Gbit Ethernet
1x
1x up to 2.5 GbE
Serial ATA Gen3
4x
4x
PCI Express x 1
4x
4x PCIe Gen 3 and 4x PCIe Gen 2
PCI Express x16 (PEG)
1x
1x (x8 PEG)
USB Client
-
4x
USB
4x USB 3.0/2.0
8x USB 2.0
4x USB 3.1 Gen 2/USB 2.0
8x USB 2.0 (4x dedicated USB 2.0)
VGA
1x
1x (option)
LVDS (eDP)
1x LVDS dual channel
eDP or option for LVDS
DP++ (DP/HDMI/DVI)
3x
3x
SPI
1x
1x
LPC
1x
1x (used for external LPC on carrier board)
External SMB
1x
1x
External I2C
1x
1x
SDIO shared with GPIO
1x option
-
GPIO or SDIO
8x
8x GPIO
UART (2-wire COM)
2x
2x
FAN PWM out
1x
1x
1.5.
COM Express® Benefits
COM Express® defines a Computer-On-Module (COM), with all the components necessary for a bootable host
computer, packaged as a highly integrated computer. All Kontron COM Express® modules are very compact and
feature a standardized form factor and a standardized connector layout that carry a specified set of signals. Each
COM module is based on the COM Express® specification. This standardization allows designers to create a single-
system carrier board that can accept present and future COM Express® modules.
The carrier board designer can optimize exactly how each of these functions implements physically. Designers can
place connectors precisely where needed for the application, on a carrier board optimally designed to fit a system’s
packaging.
A single carrier board design can use a range of COM Express® modules with different sizes and pinouts. This
flexibility differentiates products at various price and performance points and provides a built-in upgrade path when
designing future-proof systems. The modularity of a COM Express® solution also ensures against obsolescence when