Nvidia JETSON XAVIER NX Design Guide

USB and PCIe
NVIDIA Jetson Xavier NX DG-09693-001_v1.7 | 18
Table 6-2. USB 3.2 and PCIe Pin Description
Pin #
Module Pin
Name
Xavier Signal Usage/Description
Recommended
Usage
Directio
n
Pin Type
131 PCIE0_RX0_N NVHS0_RX0_N
PCIe #0 Receive 0 (PCIe Ctrl #5 Lane 0)
PCIe x4
conn/device (i.e.
M.2 Key M)
Input PCIe PHY
133 PCIE0_RX0_P NVHS0_RX0_P
137 PCIE0_RX1_N NVHS0_RX1_N
PCIe #0 Receive 1 (PCIe Ctrl #5 Lane 1)
139 PCIE0_RX1_P NVHS0_RX1_P
149 PCIE0_RX2_N NVHS0_RX2_N
PCIe #0 Receive 2 (PCIe Ctrl #5 Lane 2)
151 PCIE0_RX2_P NVHS0_RX2_P
155 PCIE0_RX3_N NVHS0_RX3_N
PCIe #0 Receive 3 (PCIe Ctrl #5 Lane 3)
157 PCIE0_RX3_P NVHS0_RX3_P
134 PCIE0_TX0_N NVHS0_TX0_N
PCIe #0 Transmit 0 (PCIe Ctrl #5 Lane 0)
Output PCIe PHY
136 PCIE0_TX0_P NVHS0_TX0_P
140 PCIE0_TX1_N NVHS0_TX1_N
PCIe #0 Transmit 1 PCIe Ctrl #5 Lane 1)
142 PCIE0_TX1_P NVHS0_TX1_P
148 PCIE0_TX2_N NVHS0_TX2_N
PCIe #0 Transmit 2 (PCIe Ctrl #5 Lane 2)
150 PCIE0_TX2_P NVHS0_TX2_P
154 PCIE0_TX3_N NVHS0_TX3_N
PCIe #0 Transmit 3 (PCIe Ctrl #5 Lane 3)
156 PCIE0_TX3_P NVHS0_TX3_P
181 PCIE0_RST* PEX_L5_RST_N
PCIe #0 Reset (PCIe Ctrl #5). 4.7kΩ pull-up to
3.3V on the module. Output when module is Root
Port - input when module Endpoint.
Bidir
Open
Drain 3.3V
180
PCIE0_CLKRE
Q*
PEX_L5_CLKREQ_
N
PCIE #0 Clock Request (PCIe Ctrl #5). 47kΩ pull-
up to 3.3V on the module. Input when module is
Root Port - output when module is Endpoint.
160 PCIE0_CLK_N
PEX_CLK5N or
NVHS0_REFCLK_
N
PCIe #0 Reference Clock controlled by on-
module mux by SoC CAN0_EN. When CAN0_EN
is low, PEX_CLK5 is selected (reference clock
when module is Root Port). When CAN0_EN is
high, NVHS0_REFCLK is selected (reference
clock input when Jetson Xavier NX is an
Endpoint).
Bidir PCIe PHY
162 PCIE0_CLK_P
PEX_CLK5P or
NVHS0_REFCLK_
P
167 PCIE1_RX0_N PEX_RX11_N
PCIe #1 Receive 0 (PCIe Ctrl #4 Lane 0)
PCIe x1
conn/device (i.e.
M.2 Key E)
Input PCIe PHY
169 PCIE1_RX0_P PEX_RX11_P
172 PCIE1_TX0_N PEX_TX11_N
PCIe #1 Transmit 0 (PCIe Ctrl #4 Lane 0) Output PCIe PHY
174 PCIE1_TX0_P PEX_TX11_P
183 PCIE1_RST* PEX_L4_RST_N
PCIe #1 Reset (PCIe Ctrl #4). 4.7kΩ pull-up to
3.3V on the module.
Output
Open
Drain 3.3V
182
PCIE1_CLKRE
Q*
PEX_L4_CLKREQ_
N
PCIE #1 Clock Request (PCIe Ctrl #4). 47kΩ pull-
up to 3.3V on the module.
Bidir
Open
Drain 3.3V
173 PCIE1_CLK_N PEX_CLK4N
PCIe #1 Reference Clock (PCIe Ctrl #4) Output PCIe PHY
175 PCIE1_CLK_P PEX_CLK4P
179 PCIE_WAKE* PEX_WAKE_N PCIe Wake. 47kΩ pull-up to 3.3V on the module.
Shared between
x1 and x4 PCIe
interfaces.
Input
Open
Drain 3.3V

Nvidia JETSON XAVIER NX Specifications

General

Storage	16 GB eMMC 5.1
AI Performance	21 TOPS (INT8)
Operating Temperature	-25°C to 80°C
Operating System	Linux (JetPack SDK)
GPU	NVIDIA Volta architecture with 384 CUDA cores and 48 Tensor cores
CPU	6-core NVIDIA Carmel ARMv8.2 64-bit CPU 6 MB L2 + 4 MB L3
Memory	8GB 128-bit LPDDR4x
Video Decode	2x 4K60 | 4x 4K30 | 8x 1080p60 | 16x 1080p30 (H.265/H.264)
Camera	Up to 6 cameras
Connectivity	Gigabit Ethernet, M.2 Key E for Wi-Fi/Bluetooth
Power	10 W / 15 W / 20 W
Dimensions	70mm x 45mm