AVR-Chat

At 11:33 AM 6/12/2005, James Hatley wrote:
>Hello,
>
>You may be able to toggle a port bit by writing a 1 to the corresponding
>PINx bit. I've not seen it documented anywhere except in the m2560 document.
>You might want to try it to see if it works on all AVR processors.

Hmm. It's only an improvement on toggling a bit that's in an unknown 
state though.
If you know, then sbi portx,y or cbi portx,y is just as fast.

It's also a tie on pulsing the bit, two instructions either way.