Chapter 6. Usb And Pci Express; Table 6-1. Jetson Tx2 Nx Usb 2.0 Pin Descriptions; Table 6-2. Jetson Tx2 Nx Usb 3.0 And Pcie Pin Descriptions - Nvidia Jetson TX2 NX Manual

Chapter 6. USB and PCI Express

Jetson TX2 NX allows multiple USB 2.0, USB 3.0 and PCIe interfaces to be brought out of the
module.
Table 6-1. Jetson TX2 NX USB 2.0 Pin Descriptions
Pin # Module Pin Name Tegra X2 Signal
87 GPIO00 USB_VBUS_EN0
109 USB0_D_N USB0_DN
111 USB0_D_P USB0_DP
115 USB1_D_N USB1_DN
117 USB1_D_P USB1_DP
121 USB2_D_N USB2_DN
123 USB2_D_P USB2_DP
Notes:
1. In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.
2. The direction of GPIO00 is true when used for this function. Otherwise as a GPIO, the direction is bidirectional.
Table 6-2. Jetson TX2 NX USB 3.0 and PCIe Pin Descriptions
Jetson TX2 NX
Pin # Module Pin Name
Function
131 PCIE0_RX0_N PCIE0_RX0_N
133 PCIE0_RX0_P PCIE0_RX0_P
137 PCIE0_RX1_N PCIE0_RX1_N
139 PCIE0_RX1_P PCIE0_RX1_P
149 PCIE0_RX2_N RSVD
151 PCIE0_RX2_P RSVD
PCIE0_RX3_N
155 RSVD
(RSVD)
PCIE0_RX3_P
157 RSVD
(RSVD)
179 PCIE_WAKE* PCIE_WAKE*
181 PCIE0_RST* PCIE0_RST*
134 PCIE0_TX0_N PCIE0_TX0_N
136 PCIE0_TX0_P PCIE0_TX0_P
140 PCIE0_TX1_N PCIE0_TX1_N
142 PCIE0_TX1_P PCIE0_TX1_P
NVIDIA Jetson TX2 NX
Usage/Description
GPIO #0 (USB 0 VBUS Detect)
USB 2.0 Port 0 Data
USB 2.0 Port 1 Data
USB 2.0, Port 2 Data
Tegra X2 Signal Usage/Description
PEX_RX4N
PCIe #0 Receive 0 (PCIe Ctrl #0
Lane 0)
PEX_RX4P
PEX_RX2N
PCIe #0 Receive 1 (PCIe Ctrl #0
Lane 1)
PEX_RX2P
- Reserved
- Reserved
− Reserved
− Reserved
PCIe Wake. 47kΩ pull-up to
PEX_WAKE_N
3.3V on the module.
PCIe #0 Reset (PCIe Ctrl #0).
PEX_L0_RST_N 4.7kΩ pull-up to 3.3V on the
module.
PEX_TX4N
PCIe #0 Transmit 0 (PCIe Ctrl
#0 Lane 0)
PEX_TX4P
PEX_TX2N
PCIe #0 Transmit 1PCIe Ctrl #0
Lane 1)
PEX_TX2P
Usage on DevKit
Direction Pin Type
Carrier Board
USB 2.0 Micro B Input
USB 2.0 Micro B Bidir
USB Hub Bidir
M.2 Key E Bidir
Usage on DevKit
Direction Pin Type
Carrier Board
M.2 Key M Input
M.2 Key M -
M.2 Key M -
M.2 Key M
−
M.2 Key M
−
M.2 Key E & M Input
M.2 Key M
Output
M.2 Key M
M.2 Key M
DG-10141-001_v1.1 | 16
Open Drain, 1.8V
USB PHY
USB PHY
USB PHY
PCIe PHY
-
-
−
−
Open Drain 3.3V
Open Drain 3.3V
PCIe PHY