DMA Receive Data Level Register
DMARDL | Receive Data Level. This bit field controls the level at which a DMA request is made by the receive logic. The watermark level is equal to DMARDL + 1; that is, receive DMA request is generated when the number of valid data entries in the receive FIFO is equal to or above this bit field value + 1, and SPI_DMACR[RDMAE] = 0x1. |