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6.1
USB
Figure 6-1 shows the USB connection example.
Figure 6-1.
USB Connection Example
Jetson
Tegra
USB 2.0
USB0_DN
USB0_DP
USB2_DN
USB2_DP
UARTCAM
USB_VBUS_EN0
USB 3.0
USB1_DN
& PEX
USB1_DP
PEX_RX1_N
PEX_RX1_P
PEX_TX1_N
PEX_TX1_P
Notes:
1. AC capacitors should be located close to either the USB connector, or the Jetson TX2 NX pins.
2. For USB 3.0 IF shown above (
directly to a peripheral, AC caps are needed on the peripheral TX lines as well. The AC caps
are recommended to be located near the Jetson TX2 NX connector pins, although locating the
caps near the peripheral RX pins is acceptable.
3. USB0 must be available to use as USB Device for USB Recovery Mode.
4. USB0 VBUS Detect, if required for USB Device Mode, connects to an available GPIO. This
signal is not required if the connector (Micro B in this case) is only used for USB Recovery
Mode.
5. The load switch supplying VBUS should have over current protection. In Figure 6-1 this is
supported by routing the over current (OC) pin of the load switch to the GPIO00
(
USB_VBUS_EN0
6. Connector used must be USB Implementers Forum certified if USB 3.0 implemented.
NVIDIA Jetson TX2 NX
USB0_VBUS_DET
GPIOx
*
USB0_D_N
109
USB0_D_P
111
Available: Used
USB2_D_N
121
for M .2 Module
USB2_D_P
on DevKit Carrier
123
Board
Enable / Over-Current Status
GPIO00
87
USB1_D_N
115
USB1_D_P
117
USBSS_RX_N
161
USBSS_RX_P
163
USBSS_TX_N
166
USBSS_TX_P
168
USBSS_TX/RX
) which is bidirectional and can be used to detect an over current condition.
D
G
S
4.7uF
VDD_5V_IN
MSP5.0A
-M3/8 9A
Load Switch
IN
OUT
EN
OC
100Ω
0.1uF
0.1uF
TPD4E 05U06
), AC caps are required on the TX lines. If routed
USB and PCI Express
USB
VDD_5V_USB
Micro B
VBUS
SH1
DN
SH2
DP
SH3
ID
SH4
GND
USB SS
Type A
VBUS
DN
USB 2.0
DP
GND
TAB
RX_N
TAB
RX_P
USB 3.0
GND
TX_N
TX_p
DG-10141-001_v1.1 | 18
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