SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The SATA AHCI mode supports a command list of from 1 up to 32 entries (command slots) assigned to HBA port 0, which should be allocated and built into host system memory by user software. After receiving command/data messages from the attached port 0 SATA mass-storage drive, the HBA extracts the FIS Dwords, sorts them out, and stores them into different areas of RX FIS-allocated host system memory.