Timers perhaps?

[skimask]

Let's abstract for a sec.
I need two pins, call them A and B.
If Port A is pulsing at 4096Hz, then Port B needs to pulse at 1Hz.
But, I need to do this in the background.
Ideally, port A would be driven by the clock out, and port B would pulse once for every 4096 pulses coming out of the external clock.
Does that make more sense (sorry if I'm being confusing!)
-Matt

Ok, so you need the fast pin at 4096Hz and the slow pin to pulse at 1Hz? Yes?
Is that what you actually need?
It is definitely a doable project, interrupt driven pulses and all...just need to know your exact numbers.