ADLINK Technology SMARC LEC-MTK-I1200 - USB Port Details

LEC-MTK-i1200 User’s Guide SGET SMARC Rev 2.1
Page 32 copyright © 2023 ADLINK Technology Inc.
4.4.4 USB ports
The OTG port comes straight from SoC, other ports are derived from a USB3.1/2.0 SS hub ( SOC has 2x USB2.0, 1x USB3.1
Name
Pin #
Description
I/O
Type
I/O
Level
Power
Domain
PU /
PD
Comments
USB0+
USB0-
P60
P61
USB differential data pairs for port 0
I/O
USB
USB
Standby
From SOC
USB0_EN_OC#
P62
USB over-current sense for port 0
I/O OD
CMOS
3.3V
note 1
Standby
PU 10k
Pulled low by Module OD driver to disable USB0 power.
Pulled low by Carrier OD driver to indicate over-current
situation.
USB0_VBUS_DET
P63
USB port 0 host power detection,
when this port is used as a device.
I USB
VBUS 5V
USB VBUS
5V
Standby
When this Port is used as a device it can be connected to a
USB client port VBUS pin
USB0_OTG_ID
P64
Input pin to announce OTG device
insertion on USB 2.0 port
Standby
Resistor value to ground according to USB specification
USB1+
USB1-
P65
P66
USB differential data pairs for port 1
I/O
USB
USB
Standby
From SOC
USB1_EN_OC#
P67
USB over-current sense for port 1
I/O OD
CMOS
3.3V
note 1
Standby
PU 10k
Pulled low by Module OD driver to disable USB1 power.
Pulled low by Carrier OD driver to indicate over-current
situation.
USB2+
USB2-
P69
P70
USB differential data pairs for port 2
I/O
USB
USB
Standby
From USB 3.1 Hub
USB2_SSRX+
USB2_SSRX-
S74
S75
Receive signal differential pairs for
SuperSpeed on port 2
I
USB SS
USB SS
Standby
DC blocking capacitors 100nF shall be placed on the Carrier
USB2_SSTX+
USB2_SSTX-
S71
S72
Transmit signal differential pairs for
SuperSpeed on port 2
O
USB SS
USB SS
Standby
DC blocking capacitors 100nF shall be placed on the Carrier
USB2_EN_OC#
P71
USB over-current sense for port 2
I/O OD
CMOS
3.3V
note 1
Standby
PU 10k
Pulled low by Module OD driver to disable USB2 power.
Pulled low by Carrier OD driver to indicate over-current
situation.