ADLINK Technology SMARC LEC-MTK-I1200 User Manual page 32

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