SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The PRM_IO_PMCTRL[4] ISOOVR_EXTEND bit allows extending the non-EMIF I/O isolation. This feature can be used by software to restore modules driving output, such as GPIO, while non-EMIF I/Os are still isolated. Once software completes the relevant module restore, it clears the bit and hardware performs full-isolation-to-EMIF on the hardware-controlled I/O transition.
The PRM_IO_PMCTRL[5] IO_ON_STATUS bit is available for software to check completion of the EMIF on transition.