mITX-SKL-H – User Guide, Rev.1.1
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8.4.
USB 3.0 Internal Connector (J3)
The following mITX-SKL-H USB ports are available on internal connectors:
USB 3.0 Port 5 and 6 on the internal USB 3.0 connector (J3)
USB 2.0 Port 7 and 8 are available on the internal FRONT PANEL connector (J27)
Table 17: Pin Assignment USB 3.0 Internal Connector (J3)
Pin
Signal
Type
Ioh / Iol
Note
1
V_VBUS
PWR
2
RX5-
USB 3.0
3
RX5+
USB 3.0
4
GND
PWR
5
TX5-
USB 3.0
6
TX5+
USB 3.0
7
GND
PWR
8
D5-
USB 2.0
9
D5+
USB 2.0
10
NC
11
D4+
USB 2.0
12
D4-
USB 2.0
13
GND
PWR
14
TX4+
USB 3.0
15
TX4-
USB 3.0
16
GND
PWR
17
RX4+
USB 3.0
18
RX4-
USB 3.0
19
V_VBUS
PWR
20
KEY( NC)
Signal Description
Signal
Description
V_VBUS
+5V Supply for USB Device
RX#+/-
USB 3.0 receiver differential signal pair
TX#+/-
USB 3.0 transmitter differential signal pair
D#+/-
USB 2.0 differential signal pair
GND
Power Supply GND signal
