This registers allows you to program the mode of the clock recovery. You can either choose to use the ACR details from the ports or registers.
| Bit | Default Value | Access Type | Description |
|---|---|---|---|
| 31:3 | 0 | RO | Reserved |
| 2:0 | 0 | R/W | 3'b000 - External Fixed mode. N/CTS (Maud/Naud) values taken
from input ports 3'b001 - User Fixed Mode. N/CTS (Maud/Naud) values taken from registers 3'b100 - Extarnal Loop Control mode. N/CTS (Maud/Naud) values taken from input ports 3'b101 - User Loop Control mode. N/CTS (Maud/Naud) values taken from registers. |