SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
PSI-L threads must first be enabled in order to transfer commands or data. Threads are enabled or disabled by setting or clearing the enable bit in the PSI-L pairing registers for the thread. When a thread is disabled, it must drop any data phases which are sent but properly return the credits for the data phases which are dropped.