COMe-mEL10 - User Guide Rev. 1.1
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To change the default PCIe configuration (4x1), a new BIOS version is required. For BIOS version information, visit
Kontron’s Customer Section or contact Kontron Support.
2.3.8.
USB
The COMe-mEL10 supports two USB 3.1 Gen2 ports backwards compatible with USB 2.0 and six dedicated USB 2.0 ports.
The USB Client is an option and if implemented one USB 2.0 port is required to support the USB client functionality. The
USB client can be implemented on any USB 2.0 port supporting dual role capabilities. Dynamic changing is not possible.
Select the USB 2.0 client port in the BIOS set up and reset the BIOS.
The following table lists the supported USB features.
USB Ports
2x USB 3.1 Gen2 (10 Gb/s) (USB 2.0 backwards compatible)
6x USB 2.0
USB Over Current Signals
4x
USB Client Port
1 x USB 2.0 host/client mode (option)
The following table lists the USB 3.1 port connections.
COMe Connector HSIO Lane
HSIO Port
Description
USB_SS1
0
USB#0
USB 3.1 Gen 2 (10 Gb/s) dual role port
USB_SS2
1
USB#1
USB 3.1 Gen 2 (10 Gb/s) dual role port
The USB speed can be changed in the BIOS setup menu: Chipset> PCH/IO Configuration> USB
Configuration> USB3 Link Speed> GEN1, GEN2.
When designing the carrier board consider the speed of the USB 3.1 Gen 2 (10 Gb/s). Kontron
recommends using a retimer/redriver on the carrier.
The following table lists the USB 2.0 port connections.
COMe Connector PCH USB Port
Description
USB0
USB2_0
USB 2.0 port
USB1
USB2_1
USB 2.0 port
USB2
USB2_2
USB 2.0 port
USB3
USB2_3
USB 2.0 port
USB4
USB2_4
USB 2.0 port
USB5
USB2_5
USB 2.0 port
USB6
USB2_6
USB 2.0 port
USB7
USB2_7
USB 2.0 port dual role USB Host