HDMI Pinmux customization for custom carrier board


I’m performing pinmux configuration for a custom carrier board based on a Jetson Orin NX. For the process, we’re using the spreadsheet provided by you: Jetson Orin NX Series and Jetson Orin Nano Series Pinmux , version 1.01. Also, due to the custom carrier requirements, we are basing our work on the Jetson_Orin_NX_Series_+HDMI A03 tab from the spreadsheet.

During the process, we notice a mismatch between the Customer Usage Description column and the actual usage options provided for two of the HDMI related pins. We need to set up the following configuration for our custom carrier:

  • Pin 98: DP1_AUX_N → as HDMI-DDC-SDA
  • Pin 100: DP1_AUX_P → as HDMI-DDC-SCL

According to the Jetson Orin NX Series and Orin Nano Series Design Guide (version 1.1, page 45, Table 9-1), that configuration should be possible without problems. However, the Pinmux template indicates a reversed description:

Considering that the Usage tab does match the requirements for Pin 98 (Data Transmission) and Pin 100 (Clock Lane), we believe that it could be a possible typo in the description provided in the template. Still, we thought that it would be better if you can confirm that assumption or provide us with a clarification before we continue with the dtsi file generation.

Thanks in advance!

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It is typo of customer usage description that won’t affect dtsi. Please follow design guide. Thanks.

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