Create a LC3 Control Unit In Logisim

The control unit consists of several vital pieces of a processor: it contains the Instruction Register, Program Counter, and current state of the instruction cycle. Add a circuit to your workspace called control_unit, and create the circuit in this part of the workspace.

First of all, decide how you are going to represent the six states of the instruction cycle. Note that the transitions dont depend on any extra input only the clock. You will be outputting signals to different parts of your processor based on the current state, so make sure that you uniquely represent all six states. Create this state machine as a circuit.