Kontron COMe-cXLi2 - Manual (Page 39)

Kontron COMe-cXLi2 User’s Guide
www.kontron.com
33
4.1.4 Connector J4 - SDIO/MMC Socket
The onboard SDIO socket J4 provides the SDIO port #0 from US15SCH. See
Section 5.3, “SDCard Interface (SDIO)” for more detailed information.
4.1.5 Connector J5 - FAN
This is the 3-pin FAN connector for a 5V fan. J5 can be configured in the
BIOS setup. See Section 6.3, “Onboard Fan Connector”for more detailed
information.
NOTE: Although there is a fan connector on the module, active cooling is not
needed for the module to function fully in the -40C to +85C extreme
temperature range
4.2 Signal Descriptions
4.2.1 PCI Express Interface
The PCI Express* x1 lane is a fast connection interface for many different
system devices, such as network controllers, I/O controllers or express card
devices. The implementation of this subsystem complies with the COM Express®
Specification. Refer to the PICMG COM Express® Design Guide for additional
implementation information.
The COMe-cXLi2 COM supports 1 PCI Express x1 lanes. See Table 7 for detailed
configuration information.
Table 7: PCI Express Configuration
Source 1 Optional Standard Target
Intel US15WPT
PCIe #2
- Intel 82574IT LAN
GB
Intel 82574IT LAN
GB
Intel US15WPT
PCIe #1
COMe PCIe Lane #0
Only 1x PCIe x1 is available for use.
Notes: 1) The PCI Express lanes can only be used in an x1 configuration.
An x4 lane configuration is not possible.
2) PCI Express HotPlug functionality is not supported from the US15WPT
SCH.
4.2.2 USB Interface
The USB interface comes with three USB controllers (six USB ports). Table 8
shows the USB configuration for the COMe-cXLi2 module.