Welcome in the forum and in the fascinating world of PSoCs.
Easiest is to use a ControlRegister component. It can be written by software and has got signal outputs which can be routed to any component's input.
BTW: Which development kit have you got?
Wonderful, that's exactly what I was looking for. Cheers for that.
I'm currently using a PSoC 4200 BLE Pioneer Kit to evaluate the wireless platform, but I've also tried one of the 5LP CYC8KITs. The sheer power in the PSoC 5 is amazing.