3.6.1. FSM Example: Moore Machine

Try these first

1. 1.

   What does a Moore machine rely on for its output?

   Hint

   Think about whether inputs affect the output.

2. 2.

   Define state encoding in a state machine.

   Hint

   Consider how states are represented in binary form.

3. 3.

   In a Moore machine, the outputs depend on:

   • Current input and state
   • Only the current state
   • Only the previous state

   Hint

   Eliminate choices that include input.

4. 4.

   True or False: State transitions can occur with both rising and falling edges of clock signals.

   • True
   • False

   Hint

   Consider how states might react on a clock signal.

5. 5.

   Create a complete Verilog code for a Moore machine that covers four states: OFF, PREPARING, COOKING, and FINISHED, implementing specific time delays for transitions based on clock cycles.

   Hint

   Identify delays between each state transition using timer logic.

6. 6.

   Critically analyze a given Moore machine design with potential pitfalls in state management and suggest improvements.

   Hint

   Identify any states that seem unstable or conditional transition scenarios not well defined.