DMA Transmit Data Level Register
DMATDL | Transmit Data Level. This field controls the level at which a DMA request is made by the transmit logic. It is equal to the watermark level; that is, the I2C_DMA_TX signal is generated when the number of valid data entries in the Tx FIFO is equal to or below this field value, and I2C_DMA_CR[TDMAE] is set to 0x1. |