RS485 mode configuration
| RS485_EN | Set this bit to choose RS485 mode. |
| DL0_EN | Set this bit to delay the stop bit by 1 bit. |
| DL1_EN | Set this bit to delay the stop bit by 1 bit. |
| RS485TX_RX_EN | Set this bit to enable the receiver could receive data when the transmitter is transmitting data in RS485 mode. |
| RS485RXBY_TX_EN | 1: enable RS485 transmitter to send data when RS485 receiver line is busy. 0: RS485 transmitter should not send data when its receiver is busy. |
| RS485_RX_DLY_NUM | This register is used to delay the receiver’s internal data signal. |
| RS485_TX_DLY_NUM | This register is used to delay the transmitter’s internal data signal. |