| IN_RST | Set this bit to reset in link operations. |
| OUT_RST | Set this bit to reset out link operations. |
| AHBM_FIFO_RST | Set this bit to reset dma ahb fifo. |
| AHBM_RST | Set this bit to reset dma ahb interface. |
| IN_LOOP_TEST | Set this bit to enable loop test for in links. |
| OUT_LOOP_TEST | Set this bit to enable loop test for out links. |
| OUT_AUTO_WRBACK | when in link’s length is 0 go on to use the next in link automatically. |
| OUT_NO_RESTART_CLR | don’t use |
| OUT_EOF_MODE | Set this bit to produce eof after DMA pops all data clear this bit to produce eof after DMA pushes all data |
| UART0_CE | Set this bit to use UART to transmit or receive data. |
| UART1_CE | Set this bit to use UART1 to transmit or receive data. |
| UART2_CE | Set this bit to use UART2 to transmit or receive data. |
| OUTDSCR_BURST_EN | Set this bit to enable DMA in links to use burst mode. |
| INDSCR_BURST_EN | Set this bit to enable DMA out links to use burst mode. |
| OUT_DATA_BURST_EN | Set this bit to enable DMA burst MODE |
| MEM_TRANS_EN | |
| SEPER_EN | Set this bit to use special char to separate the data frame. |
| HEAD_EN | Set this bit to enable to use head packet before the data frame. |
| CRC_REC_EN | Set this bit to enable receiver’'s ability of crc calculation when crc_en bit in head packet is 1 then there will be crc bytes after data_frame |
| UART_IDLE_EOF_EN | Set this bit to enable to use idle time when the idle time after data frame is satisfied this means the end of a data frame. |
| LEN_EOF_EN | Set this bit to enable to use packet_len in packet head when the received data is equal to packet_len this means the end of a data frame. |
| ENCODE_CRC_EN | Set this bit to enable crc calculation for data frame when bit6 in the head packet is 1. |
| CLK_EN | Set this bit to enable clock-gating for read or write registers. |
| UART_RX_BRK_EOF_EN | Set this bit to enable to use brk char as the end of a data frame. |