Transmit FIFO Threshold Register
TX_TL | Controls the level of entries (or below) that triggers the TX_EMPTY interrupt (I2C_RAW_INTR_STAT[TX_EMPTY] bit). The valid range is 0-255, with the additional restriction that it may not be set to value larger than the depth of the buffer. If an attempt is made to do that, the actual value set will be the maximum depth of the buffer. A value of 0 sets the threshold for 0 entries, and a value of 255 sets the threshold for 255 entries. |