Enum for the possible reference voltages for the ADC.
| Enum value | Description |
|---|---|
|
ADC_REFERENCE_INTREF |
Internal Bandgap Reference |
|
ADC_REFERENCE_INTVCC0 |
1/1.48VCC reference |
|
ADC_REFERENCE_INTVCC1 |
1/2VCC (only for internal VCC > 2.1V) |
|
ADC_REFERENCE_AREFA |
External reference A |
|
ADC_REFERENCE_INTVCC2 |
VDDANA |