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ECE 3130 – Digital Electronics and Design

ECE 3130 – Digital Electronics and Design. Lab 6 State Machines Fall 2012. What is a State Machine?. A model of a machine that can be in one of several states (e.g. traffic lights) Different representations: State tables State diagrams State equations. Mealy and Moore State Machines.

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ECE 3130 – Digital Electronics and Design

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  1. ECE 3130 – Digital Electronics and Design Lab 6 State Machines Fall 2012 Allan Guan

  2. What is a State Machine? • A model of a machine that can be in one of several states (e.g. traffic lights) • Different representations: • State tables • State diagrams • State equations Allan Guan

  3. Mealy and Moore State Machines • Mealy machine • Output values are determined by both the current state and the current inputs • Moore machine • Output values are determined solely by the current state Allan Guan

  4. Objectives • Design both a Mealy and Moore machine to detect the sequence, 1010, in a bit pattern • Draw a state table • Implement a Mealy machine using D flip-flops Allan Guan

  5. Moore Machine Allan Guan

  6. Mealy Machine Allan Guan

  7. Mealy Implementation using DFF Allan Guan

  8. Circuit Implementation Allan Guan

  9. Output Allan Guan

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