[Icc-avr] ADC Differential input

[Sylvain Bissonnette]

Hi,

    That's the first time I have to use the differential input on a AVR and my question is
if I chose the value 01000 in the MUX register it's written 
Posisive Diff Input : ADC0
Negative Diff Input : ADC0

I don't understand why it's the same input?

Thanks
Sylvain Bissonnette
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