SPRUJ79 November 2024 F29H850TU
Both the transmitter and receiver are capable of using the RTDMA for automatic data transfers. The RTDMA trigger is independent from the interrupt signals. RTDMA events are only triggered on the completion of a data frame.
The transmitter RTDMA trigger is enabled by setting TX_DMA_CTRL.DMA_EVT_EN to 1. The transmitter must also set TX_OPER_CTRL_LO.START_MODE to 0x2 to allow either a write to the TX_FRAME_CTRL.START bit or to the TX_FRAME_TAG_UDATA register to start the transmission.
The receiver RTDMA trigger is enabled by setting RX_DMA_CTRL.DMA_EVT_EN to 1.
Refer to Section 36.3.2 and Section 36.3.3 for more RTDMA information specific to each FSI Module.