Well, im making a binary calendar which runs off a signal from the British Atomic Clock. This is made up of a 51 bit stream. I want to clock my circuit everytime the day bit changes (ie every 24 hours, using the bit's transision as the trigger). This bit is number 35 in the stream.
I'm feeding the stream into a 32 bit shift register. The bits I need from the signal's bit stream are bits 17 to 35. The thing I'm having problems with, is working out how to trigger the timer circuit, and how to configure the 555 itmers so that I get enough pulses to go right through the stream and clock bits 17-35 in the register. And then set off another pulse to clock the latches which come directly after the register.
Sorry it wasn't more clear in the first place, and I don't want to use any progammable logic! Any help would be much appreciated though.