SPRUIN7C March 2020 – March 2024 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1
In LIN mode with the multibuffer option enabled, after a transmission (up to eight data bytes stored in the transmit buffers (TDy) in the LINTD0 and LINTD1 registers), a DMA request is generated to reload the transmit buffer for the next transmission. If the multibuffer option is disabled, then DMA requests are generated on a byte-per-byte basis until all bytes are transferred. This DMA functionality is enabled and disabled using the SET TX DMA and CLR TX DMA bits, respectively.