https://forums.developer.nvidia.com/t/tx2-vs-tx1-sdmmc3-interface-not-brought-to-tx2-module-connector/145510
TX2 Vs TX1: SDMMC3 interface not brought to TX2 module connector - Jetson TX1 - NVIDIA Developer...
Aug 5, 2020 - Hi, In TX2, SDMMC3 interface is not available at connector. Can I use SDMMC1 interface for eMMC device for 4-bit mode.