The ACD_Bias precinct calls out the settings for the AFE bias_dac registers. These registers control the biasing of the pre-amp in the front end electronics. Changing these register will cause the pedestal values to change and would require re-configuring the ACD_Pha, ACD_Veto and ACD_Hld precincts. In normal operations we expect never to change these values.
| Group | Register Name | Instances | Multiplicity | Subsections | Type | Width (bits) |
| AFE | bias_dac | 12 x 18 | 1 | 1 | int | 6 |