DMA Transmit Data Level Register
DMARDL | Receive Data Level. This field controls the level at which a DMA request is made by the receive logic. The watermark level = DMARDL + 1; that is, I2C_DMA_RX is generated when the numberof valid data entries in the Rx FIFO is equal to or more than this field value + 1, and I2C_DMA_CR[RDMAE] is set to 0x1. For instance, when IC_DMA_RDLR[DMARDL] is set to 0x0, then I2C_DMA_RX is asserted when 1 or more data entries are present in the Rx FIFO. |