RX CH4 in_link dscr ctrl register
| INLINK_AUTO_RET_CH4 | Set this bit to return to current inlink descriptor’s address, when there are some errors in current receiving data. |
| INLINK_STOP_CH4 | Set this bit to stop dealing with the inlink descriptors. |
| INLINK_START_CH4 | Set this bit to start dealing with the inlink descriptors. |
| INLINK_RESTART_CH4 | Set this bit to mount a new inlink descriptor. |
| INLINK_PARK_CH4 | 1: the inlink descriptor’s FSM is in idle state. 0: the inlink descriptor’s FSM is working. |