Orin Nano / NX SDMMC protocol

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
1

Hello

I have couple of questions regarding the SDMMC interface for Orin Nano / NX.

  1. The SODIMM pin provides the SDMMC interface, but for both Orin Nano and NX Module DS, there is no mention regarding the speed and SD version the SoC supports. AGX supports up to SD 4.0 (UHS-II) , is this the same with Nano / NX?
  2. Is there any concern using the PCIe to then interface with SD card via micro /SD express ?

Sincerely,
Tsugumi

2

There is no SDMMC interface that you could use on Orin NX and Nano commercial module… Only PCIe interface is available.

I wonder what you are talking about exactly.

3

Hello

I see, confirmed on both Nano and NX datasheet that SDMMC is not accessible and PCIe signals are routed.

How about for the 2nd point of using the PCIe interface to communicate with SD card that supports SD express interface? Any concern or issue from Nvidia side?

4

We don’t validate that before so cannot guarantee it would really work.

5

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