SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Functional transmit and Filter DMA requests are generated by the MCAN module based on the signaling in the Extention Interface. The DMA signaling uses a simple DMA request active high pulse. Only one Tx DMA event is provided by the MCAN module.
Standard and Extended message filters can be set to issue a pulse when a filter match occurs. These 'Filter Events' can be used to DMA messages from the Rx FIFO. The events are high level single clock cycle (MCAN_ICLK) pulses. Only two Filter DMA events are provided by the MCAN module.