Conflicting Parallel Transition Conditions
A traffic light next-state logic block determines the upcoming state based on the current state, a timer, and an emergency override. The emergency signal must take strict priority over standard timer transitions.
Expected behavior:
| S1 | S0 | E | T | N1 | N0 | |------|------|-----|-----|------|------| | 0 | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 0 | 1 | | 0 | 0 | 1 | 0 | 1 | 0 | | 0 | 0 | 1 | 1 | 1 | 0 |
Simulation shows N1 = 0 and N0 = 1 for inputs S1=0, S0=0, E=1, T=1. The emergency override is ignored when the timer expires simultaneously. Inspect the circuit and correct the fault.
Constraints
- Do not change the input or output port names.
- Do not add additional state encodings.
Topics
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Place the gates, wire them up and watch the signals settle. Every submission runs on the same simulation engine that grades it.
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