ADREF
Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
ADNREF | ADPREF[1:0] | ||||||
Access | R/W | R/W | R/W | ||||
Reset | 0 | 0 | 0 |
ADC Negative Voltage Reference Selection bit
Value | Description |
---|---|
1 | VREF- is connected to external VREF- |
0 | VREF- is connected to AVSS |
ADC Positive Voltage Reference Selection bits
Value | Description |
---|---|
11 | VREF+ is connected to internal Fixed Voltage Reference (FVR) module |
10 | VREF+ is connected to external VREF+ |
01 | Reserved |
00 | VREF+ is connected to VDD |