Debug 4:1 Multiplexer
A 4:1 multiplexer routes one of four input signals to a single output based on a 2-bit select value.
Expected behavior:
| S1 | S0 | Y | |------|------|-----| | 0 | 0 | I0| | 0 | 1 | I1| | 1 | 0 | I2| | 1 | 1 | I3|
Simulation shows Y = 1 for inputs I3=0, I2=1, I1=0, I0=0 when S1=0, S0=1. The output should be 0 because I1 is 0. Inspect the circuit and correct the fault.
Constraints
- Do not add new logic gates to the design
- Fix the existing wiring to achieve the expected behavior
Topics
Solve this problem
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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