20.1 Features
- Programmable Voltage Reference
               Sources:
- One reference for Digital to Analog Converter 0 (DAC0)
 - One reference shared between all Analog Comparators (ACs)
 
 - Each Reference Source Supports the
            Following Voltages:
- 1.024V
 - 2.048V
 - 4.096V
 - 2.500V
 - VDD (VDDANA)
 - VREFA
 
 
