SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
Smart-idle mode is enabled when the MMC_SYSCONFIG[4:3] SIDLEMODE bit field is set to 2h or 3h. The MMC/SD/SDIO host controller goes into idle mode when the PRCM issues an idle request, according to its internal activity. The MMC/SD/SDIO host controller acknowledges the idle request from the PRCM after ensuring the following:
As long as the MMC/SD/SDIO controller does not acknowledge the idle request, if an event occurs, the MMC/SD/SDIO host controller can still generate an interrupt or a DMA request. In this case, the module ignores the idle request from the PRCM.
As soon as the MMC/SD/SDIO controller acknowledges the idle request from the PRCM: