SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Once the system has booted and upon triggering a warm reset at device level (it can be triggered by the warm-reset push button, a timer, watchdog, etc.), it is important that the eMMC device is properly brought to its PRE-IDLE state so that the next Alternative Boot operation succeeds. This is ensured by the eMMC RST_N pin to be connected to device rstoutn pin (warm reset). Not doing so would make the boot procedure fail after a warm reset.