Block diagram of Moore and Mearly FSM | applied electronics engineering

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Block diagram of Moore and Mearly FSM

By Applied Electronics - Wednesday, September 7, 2016 No Comments
Moore and Mearly machines are two types of FSM( Finite State Machine). Either of them can be used to design finite state machine. The difference between them is whether the inputs are connected to the output logic circuit. In case of Moore FSM, the inputs are not connected to the output logic. In case of Mearly FSM, the inputs are connected to the output logic.

Moore FSM block diagram

The following depicts the block diagram of Moore FSM.

Block diagram of Moore FSM

 Mearly FSM block diagram

 The following depicts the block diagram of Moore FSM.

Block diagram of Mearly FSM

Comments:
  1. In case of Moore FSM, the inputs are not connected to the output decoder(output logic circuit) whereas in Mearly FSM the inputs are connected to the output decoder(output logic circuit)
  2. Expect for that all other block components and connections are the same.
  3. The output logic circuit(the output decoder) may or may not be required according to what is being designed. For example, counters don't need the output decoder circuit
For more details see FSM-based Digital Design using Verilog

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