Design a clocked synchronous state machine with the state/output table below, using D flip flops. Use the two state variables, Q1Q2, with the state assignment A=00, B=01, C=11, D=10. P.S. S A B C D Output Z 0 1 0 N.S. S+ X=0 X=1 B D C B B A B C
Design a clocked synchronous state machine with the state/output table below, using D flip flops. Use the two state variables, Q1Q2, with the state assignment A=00, B=01, C=11, D=10. P.S. S A B C D Output Z 0 1 0 N.S. S+ X=0 X=1 B D C B B A B C
Introductory Circuit Analysis (13th Edition)
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Transcribed Image Text:### Design a Clocked Synchronous State Machine
**Task:**
Design a clocked synchronous state machine with the state/output table below, using D flip-flops. Use the two state variables, \(Q_1Q_2\), with the state assignment:
- \( A = 00 \)
- \( B = 01 \)
- \( C = 11 \)
- \( D = 10 \)
#### State Table:
| P.S. (Present State) | Output \( Z \) | N.S. (Next State) \( S^+ \) |
|----------------------|----------------|-----------------------------|
| \( S \) | | \( X=0 \) | \( X=1 \) |
| \( A \) | 0 | \( B \) | \( D \) |
| \( B \) | 0 | \( C \) | \( B \) |
| \( C \) | 1 | \( B \) | \( A \) |
| \( D \) | 0 | \( B \) | \( C \) |
**Explanation:**
- **P.S. (Present State):** Represents the current state of the system.
- **Output \( Z \):** The output associated with each state.
- **N.S. (Next State) \( S^+ \):** The next state the system transitions to based on the input \( X \).
#### Implementation Notes:
- The design involves using D flip-flops for state storage.
- Implement state transitions and output logic using the given state/output table.
- Assign states to binary codes as per the state assignment provided.
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