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Codiode/Problems/Sequential Logic

T to JK Conversion

HardLogic CircuitBuild

State-dependent input steering is a common technique in finite state machine design, allowing a generic toggle element to implement complex transition conditions. A universal state-holding element can be constructed from a simple toggle mechanism by feeding the current state back into the excitation logic.

Implement the behavior of a JK flip-flop using a single T flip-flop and combinational logic. The circuit must evaluate the J and K inputs alongside the current state Q to determine the next state.

| J | K | Q | Next Q | |-----|-----|-----|----------| | 0 | 0 | 0 | 0 | | 0 | 0 | 1 | 1 | | 0 | 1 | 0 | 0 | | 0 | 1 | 1 | 0 | | 1 | 0 | 0 | 1 | | 1 | 0 | 1 | 1 | | 1 | 1 | 0 | 1 | | 1 | 1 | 1 | 0 |

Constraints

  • Use exactly one T flip-flop.
  • Use only AND, OR, and NOT gates for the excitation logic.
  • Route the feedback from the flip-flop outputs to drive the combinational logic.
  • Do not use any additional flip-flops or latches.

Topics

Sequential LogicFlip-FlopsState Machines

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