COMe-bTL6 - User Guide. Rev. 1.5
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2.3.10.
USB 3.1 Gen 2/USB 2.0
The COMe-bTL6 supports up to four USB 3.1 Gen 2 ports with 10 Gbit/s and up to eight USB 2.0 ports. Each USB 3.1 Gen
2 port is backwards compatible with USB 2.0. Therefore, the number of available USB 2.0 ports decreases with every
used USB 3.1 Gen 2 port, with only four dedicated USB 2.0 ports. The modules supports four USB overcurrent signals.
Table 11: USB 3.1 Gen 2/USB 2.0 Port Configuration
COMe
Connector
HSIO Lane #
USB Port
Description
USB0
1
USB3_1/
USB2-1
USB 3.1 Gen 2 (10 Gb/s) or
USB 2.0
USB1
2
USB3-2/
USB2-2
USB 3.1 Gen 2 (10 Gb/s) or
USB 2.0
USB2
3
USB3-3/
USB2-3
USB 3.1 Gen 2 (10 Gb/s) or
USB 2.0
USB3
4
USB3-4/
USB2-4
USB 3.1 Gen 2 (10 Gb/s) or
USB 2.0
USB4
USB2-5
USB 2.0 (dedicated)
USB5
USB2-6
USB 2.0 (dedicated)
USB6
USB2-7
USB 2.0 (dedicated)
USB7
USB2-8
USB 2.0 (dedicated)
Intel starts counting USB ports with 1, while the COMe Specification starts counting with 0.