32.8.20 ADREF
| Name: | ADREF |
| Offset: | 0x116 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| NREF | PREF[1:0] | ||||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 0 | 0 | ||||||
Bit 4 – NREF ADC Negative Voltage Reference Selection bit
| Value | Description |
|---|---|
1 |
VREF- is connected to external VREF- |
0 |
VREF- is connected to AVSS |
Bits 1:0 – PREF[1:0] 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 |