| Bit15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| MUXNEG[4:0] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||
| Reset | 0 | 0 | 0 | 0 | 0 | ||
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| MUXPOS[4:0] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||
| Reset | 0 | 0 | 0 | 0 | 0 | ||
Negative MUX Input Selection
These bits define the MUX selection for the negative ADC input.
| Value | Name | Description |
|---|---|---|
| 0x00 | AIN0 | ADC AIN0 pin |
| 0x01 | AIN1 | ADC AIN1 pin |
| 0x02 | AIN2 | ADC AIN2 pin |
| 0x03 | AIN3 | ADC AIN3 pin |
| 0x04 | AIN4 | ADC AIN4 pin |
| 0x05 | AIN5 | ADC AIN5 pin |
| 0x06 - 0x17 | - | Reserved |
| 0x18 | GND | Internal ground |
| 0x19 - 0x1F | - | Reserved |
Positive MUX Input Selection
These bits define the MUX selection for the positive ADC input. If the internal bandgap voltage input channel is selected, then the Sampling Time Length bit group in the Sampling Control register must be written with a corresponding value.
| Value | Name | Description |
|---|---|---|
| 0x00 | AIN0 | ADC AIN0 pin |
| 0x01 | AIN1 | ADC AIN1 pin |
| 0x02 | AIN2 | ADC AIN2 pin |
| 0x03 | AIN3 | ADC AIN3 pin |
| 0x04 | AIN4 | ADC AIN4 pin |
| 0x05 | AIN5 | ADC AIN5 pin |
| 0x06 | AIN6 | ADC AIN6 pin |
| 0x07 | AIN7 | ADC AIN7 pin |
| 0x08 | AIN8 | ADC AIN8 pin |
| 0x09 | AIN9 | ADC AIN9 pin |
| 0x0A | AIN10 | ADC AIN10 pin |
| 0x0B | AIN11 | ADC AIN11 pin |
| 0xC - 0x17 | - | Reserved |
| 0x18 | - | Reserved |
| 0x19 | BANDGAP | Bandgap Voltage |
| 0x1A | SCALEDCOREVCC | 1/4 Scaled Core Supply |
| 0x1B | SCALEDIOVCC | 1/4 Scaled I/O Supply |
| 0x1C | - | Reserved |
| 0x1D | - | Reserved |
| 0x1E | - | Reserved |
| 0x1F | - | Reserved |