SeqAnalysisDesignExamples

SeqAnalysisDesignExamples - Sequential Circuit Analysis...

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Sequential circuit analysis 1 Sequential Circuit Analysis State tables  show the inputs, outputs, and flip-flop state changes for sequential  circuits. State diagrams  are an alternative but equivalent way of showing the same  information. Combinational circuit Inputs Memory Outputs
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Sequential circuit analysis 2 How do you analyze a sequential circuit? For a combinational circuit we could find a truth table, which shows how the outputs are  related to the inputs. state table  is the sequential analog of a truth table. It shows inputs and current states on the  left, and outputs and next states on the right. For a sequential circuit, the outputs are dependent upon not only the inputs, but also the  current state of the flip-flops. In addition to finding outputs, we also need to find the state of the flip-flops on the next  clock cycle.
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Sequential circuit analysis 3 Flip-flop input equations Finding the next states is harder. To do this, we have to figure out how the flip-flops are  changing. Step 1: Find Boolean expressions for the flip-flop inputs. depend on the current state and input Step 2: Use these expressions to find the actual flip-flop input values for  each possible combination 
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SeqAnalysisDesignExamples - Sequential Circuit Analysis...

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