ESP32 Forum

Can the ESP32-S3 do 8-bit SDIO host (to an eMMC chip)?

I am a little confused by this:
https://docs.espressif.com/projects/esp ... /sdio.html
"Please note that the SDIO hardware only supports the device or slave profile, i.e. it cannot act as a host to control SDIO devices such as SD cards."

Yes, ESP32-S3 can communicate with an eMMC chip over 8-bit SD interface. You can check the supported speed modes over at https://docs.espressif.com/projects/esp ... peed-modes, and the example is https://github.com/espressif/esp-idf/tr ... orage/emmc.