Sequential Analysis_ An Example (First Steps) (optional)

Sequential Analysis_ An Example (First Steps) (optional) -...

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Mallard ECE 290: Computer Engineering I - Spring 2007 - Graded Optio... https://mallard.cites.uiuc.edu/ECE290/webgrade.cgi?SessionID=mding3... 1 of 3 3/5/2007 10:57 PM Graded Optional Exercises: Sequential Analysis: An Example (First Steps) (optional) You have submitted this Optional Exercises 1 time (including this time). Sequential analysis refers to analyzing a sequential circuit in order to determine what the circuit does. Typically there are four steps: Write boolean expressions for the output function(s) and for the flip-flop inputs (the flip-flop excitation functions ). 1. Fill in the circuit's next-state table . This includes, for each current state and input combination, the next-state and the output(s) . 2. Draw a state diagram . This contains exactly the same information as the next-state table, but is in pictorial form. 3. Figure out what the circuit actually does! 4. The first three steps are "routine" because they are simply translating circuit information into a different form: no insight is needed. The last step can be hard: taking the information from the previous steps and
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