SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The Tx DMA unit block implements all of the state machine functionality necessary to implement static TR type UTC destination channels. The Tx DMA unit waits until it is triggered by an incoming DMA event and then writes data from the Tx per-channel data FIFO associated with the channel to an external memory mapped target via a VBUSP controller interface. The number and width of the writes that are performed is in accordance with the parameters, which have been programmed via PSI-L into the static TR for the channel.