ADLINK Technology I-Pi SMARC User Manual page 25

I-Pi-SMARC User's Guide
USB3_SSTX+ S62 Transmit signal differential pairs for
USB3_SSTX- S63 SuperSpeed on port 3
USB3_EN_OC# P74 USB over-current sense for port 3
USB3_VBUS_DET S37 USB port 3 host power detection,
when this port is used as a device.
USB3_OTG_ID S104 Input pin to announce OTG device
insertion on USB 3.0 port
USB4+ S35 USB differential data pairs for port 4
USB4- S36
USB4_EN_OC# P76 USB over-current sense for port 4
Note: USB0 is directly connected to the SoC, USB1/2/3/4 might come over a USB hub on the SMARC module.
Page 18
O USB SS Standby
USB SS
I/O OD 3.3Vsb / Standby
CMOS 3.3V
I USB VBUS 5V Standby
USB VBUS 5V
I 3.3Vsb / Standby
CMOS 3.3V
I/O USB Standby
USB
I/O OD 3.3Vsb / 3.3V Standby
CMOS
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Coupling caps for TX pairs are on the Module
PU 10k Pulled low by Module OD driver to disable USB0 power. Pulled
low by Carrier OD driver to indicate over-current situation.
PU 10k Pulled low by Module OD driver to disable USB0 power. Pulled
low by Carrier OD driver to indicate over-current situation.
SGET SMARC Rev 2.1