SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
If the system determines that it must flush all outstanding transactions (for instance, because the main SoC is in an error condition and is going to be reset), software may do this by writing to the Flush Register (Base Address + 0x0C). When all transactions are flushed, software should exit Flush mode. If the destination side is in reset, this should trigger hardware flush, keeping the gasket returning any transactions that arrive. The system should also use the CBA disconnect interface to keep transactions from going to the gasket when the destination side is taken down.