[PD]

Thanks for the reply. To clarify my question, I’m wondering if I can retain eMMC functionality and still use a portion of the GPMC. If I leave eMMC as-is, and can pinmux only the circled pins (and maybe some control signals) in the attached image as GPMC pins, then I could still have an 8-bit wide high speed interface to an external device, even if I have to shift/mask my reads/writes, for example: byte_rx=(gpmc_in&0xFF00)>>8; or: gpmc_out=(byte_tx<<8); .

It’s not clear to me whether pinmuxing only a portion of the GPMC is a valid configuration, without conflicting with eMMC (other peripherals seem to allow it though). Thanks.

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   gpmc.png
   

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