I'm learning about sequential synchronous circuits, and I was trying to do an exercise, but I'm not going as I expected.
The exercise is about
- Elaborate the excitation equation of flip-flops;
- Write the output equation;
- Say if it is a Moore or Mealy Machine;
- Elaborate transition table and outputs;
- Draw the state diagram;
So, my biggest problem is the first question "Elaborate the excitation equation of flip-flops", once I done the first question I think I can handle this exercise Something is getting confusing in my head.
1 - Should I consider "A-B-C" as inputs or outputs? Taking into account a Mealy machine the Output is a function of current state and inputs, if I consider "A-B-C" as my inputs what would be my output for example?
2 - I tried excitation equation of each flip-flop (considering "A-B-C" as inputs)
Q0 = B
Q1 = C
Q3 = (C'+ B') ^ ( B ^ A ) -> " ^ = Xor "
As you can see i'm a little confused, if sameone can help me I would be grateful. Thanks everyone!