Hi everyone

I built a 4 bit asynchronous counter:
][/url]

http://img257.imagevenue.com/img.php...122_211lo.jpeg

, the sequence is
1,2,3,4 right up to F and then 0,1,2,3....

My question is why doesnt the up counter start with 0...can someone explain it to me.Is this the correct sequence for a asynchrbous up counter.

Thank you & regards