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7.3
USB Port Mapping
Note
An Intel Errata states that the SoC's HSIC port 0 is reset and re-enumerated when a device is connected or disconnected from USB port 0
during runtime. Therefore, end users should not disconnect or connect any USB device to USB port 0 at runtime. Doing so may cause USB
ports 4-7 (ports routed via USB 2.0 hub) to malfunction.
Bay Trail SoC
COM Express Connector
USB 2.0
Port2
USB 2.0 HUB
+
USB 3.0 Port
USB 2.0
Port0
SuperSpeed
Port 0
USB 2.0
Port1
USB 2.0
Port5
USB 2.0
Port4
USB 2.0
Port6
USB 2.0
Port7
USB 1.x/2.0
Port 3
USB 1.x/2.0
Port 2
USB 1.x/2.0
Port 1
USB 1.x/2.0
Port 0
USB 3.0
SS
USB 2.0
HSIC 0
USB 2.0
HSIC 1
P4
X
EHCI
xHCI
P3
P2
P1
P5
P6
P1-4
SSP1
0
1
0
1
0
1
0
1
USB 2.0
Port3
NOTE:
Possible USB configurations are:
(*) Up to 8x USB 2.0
(*) Up to 7x USB 2.0 and 1x USB 3.0
