Field RXFIFO_END_ADDR
reader - This is the offset address of the first receiving data as described in nonfifo_rx_thres_register.
Field RXFIFO_START_ADDR
reader - This is the offset address of the last receiving data as described in nonfifo_rx_thres_register.
Field TXFIFO_END_ADDR
reader - This is the offset address of the last sending data as described in nonfifo_tx_thres register.
Field TXFIFO_START_ADDR
reader - This is the offset address of the first sending data as described in nonfifo_tx_thres register.