SPRUJB6B November 2024 – May 2025 AM2612
The MMC/SD/SDIO host controller can enter into different modes and save power:
The two modes are mutually exclusive (the module can be in normal mode or in idle mode). The MMC/SD/SDIO host controller is compliant with the PRCM module handshake protocol. When the MMC/SD/SDIO power domain is off, the only way to wake up the power domain and different MMC/SD/SDIO clocks is to monitor the mmc_dat1 input pin state via a different GPIO line for each MMC/SD/SDIO interface.