USB and PCIe
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series DG-10931-001_v1.1 | 36
7.2 PCIe
Orin module brings four PCIe interfaces to the module pins for up to seven total lanes (1 x4 + 1
x1 + 1x2) for use on the carrier board. The PCIe x4 interface (PCIE0) operates up to Gen4 speed
and supports both Root Port and Endpoint operation. The PCIe x1 interface (PCIE1) operates
up to Gen4 speed and support only Root Port operation. The PCIe x2 interface (PCIE2) can also
be broken into two x1 interfaces (PCIE2 x1 and PCIE3 x1). PCIE2 and PCIE3 operate up to Gen4
speed and support only Root Port operation. Figure 7-5 shows all possible interfaces as Root
Ports. Figure 7-6 shows the x4 interfaces as an Endpoint. Lane reversal and polarity inversion
(P/N swapping) is supported per controller.
Figure 7-5. PCIe Root Port Connections Example
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