Usb Connectors (I/O Area); Table 11: Pin Assignment; Table 12: Signal Description; Figure 9: Usb 2.0/3.0 Socket - Kontron pITX-iMX8M User Manual

6.5. USB Connectors (I/O area)

pITX-iMX8M board supports a dual-stacked USB3.0 interface with 5 Gbps speed. The following connections are
available for the USB 3.0:
 1x Dual-stacked USB3.0 Type A at rear I/O
 1x M.2 B-key half-size connector
Additionally there is a 1x Dual internal USB2.0 header.

Figure 9: USB 2.0/3.0 socket

USB 2.0

Table 11: Pin Assignment

Pin Type Signal
1
PWR GND
2 IO USB n+
3 IO USB n-
4 PWR 5 V/SB 5 V
5 IO TXn+
6 IO TXn-
7 PWR GND
8 IO RXn+
9
IO RXn-

Table 12: Signal Description

Signal Description
USBn+ USBn- Differential pair works as serial differential receive/transmit data lines.
Change to: USB2.0 (n=0,1,2,3), USB3.0 (n=0,1)
RXn+ RXn-
TXn+ TXn-
5 V / SB5 V
5 V supply for external devices.
SB5 V is supplied during power-down to allow wakeup on USB device activity.
Protected by a 2A current limiting IC (1A for each port).
For USB2.0 cabling it is required to use only HiSpeed USB cable, specified in USB2.0 standard:
1 2 3 4
pITX-iMX8M – Rev. 0.1 Preliminary
1 2 3 4
9 8 7 6 5
Note
USB2.0 / 3.0
USB2.0 / 3.0
USB2.0 / 3.0
USB2.0 / 3.0
USB3.0
USB3.0
USB3.0
USB3.0
USB3.0
www.kontron.com
USB 3.0
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