Digital Logic - Old Questions

11. What is state diagram? A sequential circuit with two D flip-flops A and B, one input x and one output z by the following next state and output equations:

A(t+1)= A'+B, B(t+1)=B'x, z= A+B'

i)   Draw the logic diagram of the circuit

ii) Draw the state table

iii) Draw the state diagram of the circuit