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Codiode/Problems/Sequential Logic

Shift Register Pipeline Collapse

MediumLogic CircuitDebug

A 3-stage shift register pipeline delays an input signal by three clock cycles to synchronize data across stages.

Expected behavior:

When Din changes, Dout must reflect that change exactly three rising clock edges later.

Simulation shows Dout = 1 immediately on the first rising edge of Clk when Din = 1 is applied. The pipeline collapses and data propagates through all three stages in a single clock cycle. Inspect the circuit and correct the fault.

Constraints

  • Do not change the module interface ports.
  • The circuit must use exactly three flip-flops.
  • The output must rely on the sequential clock edges, not combinational bypasses.

Topics

shift-registerdebuggingsequential-logic

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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