SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The PDMA channel will remain idle until a pulse is detected on the associated input DMA request event pin. Once the pulse is detected, the DMA will sequentially issue a total of 'Y' parameter writes of 'X' parameter bytes to the data FIFO address specified for the channel. Each write that the DMA performs will be a single 'X' element in size (no large bursts). Once the total specified number of transactions has been completed the channel will return to an idle state and wait until it is triggered again. The write transfers that are performed will be accomplished as quickly as possible given availability of data in the Tx channelized FIFO and given the arbitration that may occur as a result of other channels also using the same write unit.