AVR-Chat

--- In AVR-Chat@yahoogroups.com, Thomas Keller <tkeller1@n...> wrote:
> > Ummm - a low voltage (0v) is a logic zero. A high voltage (5v) is a
> > logic one.
> 
> Not according to AVR data sheets, it's not.

Every AVR datasheet that I've seen describes a positive logic system 
for the I/O pins where the most positive voltage is a logic one.  What 
datasheet are you looking at?

Don