SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
There are three PSC controls for the FSS: the FSS itself, OSPI0, and HyperBus interface. The CPU enables the appropriate interface before using the FSS.
The FSS can be used for HyperBus interface or OSPI0 and only the interface in use has to be enabled. Software should ensure the selected interface is enabled prior to FSS transactions.
Normal Power Down Sequence: