REFSEL=INT1V
Control B
| EOEN | External Output Enable |
| IOEN | Internal Output Enable |
| LEFTADJ | Left Adjusted Data |
| VPD | Voltage Pump Disable |
| DITHER | Dither Enable |
| REFSEL | Reference Selection 0 (INT1V): Internal 1.0V reference 1 (AVCC): AVCC 2 (VREFP): External reference |