I have been working around the PIC chips for quite some time. Built many different products. This one though I am not sure how to do or where to start.

I can have up to 48 frequencies I need to measure. The rising edges will pretty much never be at the same time.

I can't find a chip that has that many CCP/Input captures, so I would guess I will have slave chips measuring and then reporting to the master chip.

So with that in mind, assume I pick a slave chip that has four CCP pins so I end up with 12 slaves. Can I really measure effectively four different frequencies that don't have the leading edges in line? Or Do I end up with 48 slaves talking to one master?