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SMARC T335x Carrier Board Hardware Design Guide, Document Revision 1.2
The table below shows the USB signals of
USB1
.
SMARC Edge Finger
I/O
Type
Power
Rail
Description
Pin#
Pin
Name
P65
USB1+
IO
USB
3.3V
Positive differential USB signal,
OTG capable
P66
USB1
‐
IO
USB
3.3V
Negative differential USB signal,
OTG capable
P67
USB1_EN_OC#
IO
OD
3.3V
Enable signal for the bus voltage
output in host mode and Over
current input signal for the USB0
interface
Pulled low by Module OD driver to
disable USB0 power
Pulled low by Carrier OD driver to
indicate over-current situation
If this signal is used, a pull-up is
required on the Carrier
Port
USB2
is not used in
T335X
.
SMARC Edge Finger
I/O
Type
Power
Rail
Description
Pin#
Pin
Name
P69
USB1+
Not used
P70
USB1
‐
Not used
P71
USB1_EN_OC#
Not used