| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| MUX1 | MUX0 | ||||||
| Access | R/W | R/W | |||||
| Reset | 0 | 0 |
Analog Channel Selection [n = 1:0]
The value of these bits selects which analog inputs are connected to the ADC. If these bits are changed during a conversion, the change will not go in effect until this conversion is complete (ADCSRA.ADIF is set).
| MUX[1:0] | Single Ended Input | Pin |
|---|---|---|
| 00 | ADC0 | PB0 |
| 01 | ADC1 | PB1 |
| 10 | ADC2 | PB2 |
| 11 | ADC3 | PB3 |