Avnet SMARC MSC SM2S-IMX8MINI - Page 31

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User Manual
Table 9: USB Signal Description
Signal
Option
Availability
Pin Type
Signal Level
Pin on
i.MX8M
Mini
Pin name on
i.MX8M Mini
Power
Tolerance
PU/PD
Description
USB0+
USB0-
1 & 2
I/O
USB
B22
A22
USB1_DP
USB1_DN
3.3V
Differential USB 2.0 data pairs
connected to SoC. Can be
configured as host or device.
USB1+
USB1-
1
I/O
USB
n.a.
n.a.
3.3V
Differential USB 2.0 data pairs
connected to USB hub. Can be
configured as host only.
2
I/O
USB
B23
A23
USB2_DP
USB2_DN
3.3V
Differential USB 2.0 data pairs
connected to SoC. Can be
configured as host only.
USB[2:4]+
USB[2:4]-
1
I/O
USB
n.a.
n.a.
3.3V
Differential USB 2.0 data pairs
connected to USB hub. Can be
configured as host only.
USB0_VBUS_DET
1 & 2
I
Analog
F22
USB1_VBUS
5V
external VBUS detection pin
USB0_OTG_ID
1 & 2
I
3.3V CMOS
D22
USB1_ID
3.3V
PU 10k
3.3V
USB host/client control select pin for
the USB controller on the module
USB0_EN_OC#
1 & 2
I/O OD
3.3V CMOS
AB10
GPIO1_IO12
3.3V
PU 10k
3.3V
Host/client dependent enable signal
for USB power switch on the carrier
board.
*
USB1_EN_OC#
1
I/O OD
3.3V CMOS
n.a
n.a
3.3V
PU 10k
3.3V
Multi-function signal for enabling
USB power and indicating an over-
current event.
*
2
I/O OD
3.3V CMOS
P26
NAND_READY_B
3.3V
PU 10k
3.3V
Multi-function signal for enabling
USB power and indicating an over-
current event.
*
USB2_EN_OC#
1
I/O OD
3.3V CMOS
n.a.
n.a.
3.3V
PU 10k
3.3V
Multi-function signal for enabling
USB power and indicating an over-
current event.
*