Question: Computer Architecture/Organization A sequential circuit with two JK flip flops, A and B, an input X, and an output Z is specified by the following

Computer Architecture/Organization

A sequential circuit with two JK flip flops, A and B, an input X, and an output Z is specified by the following equations:

JA = X + QB KA = X

JB = XQA KB = X + QA

Z = QAQBX

J

K

Next state

Q(t+1)

0

0

Q(t) [No change]

0

1

0

1

0

1

1

1

Q(t) [Complement]

  1. (6 points) Draw the logic diagram of the circuit.
  2. (8 points) Derive the truth table showing the present state (QA(t), QB(t)), input X, next state (QA(t+1), QB(t+1)), Flip Flop inputs (JA, JB, KA, KB) and output Z.
  3. Draw the finite state diagram.

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