Transmit FIFO status of Tx channel 0
OUTFIFO_FULL | L1 Tx FIFO full signal for Tx channel 0. |
OUTFIFO_EMPTY | L1 Tx FIFO empty signal for Tx channel 0. |
OUTFIFO_CNT | The register stores the byte number of the data in L1 Tx FIFO for Tx channel 0. |
OUT_REMAIN_UNDER_1B | reserved |
OUT_REMAIN_UNDER_2B | reserved |
OUT_REMAIN_UNDER_3B | reserved |
OUT_REMAIN_UNDER_4B | reserved |