l3_analysis.pdf - 1 E1122 DIGITAL LOGIC(B SPRING 2018...

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E1122 DIGITAL LOGIC (B) SPRING 2018 Lecture 3 Analysis 1
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Sequential Circuit Analysis Analysis : Consists of obtaining a suitable description( a table or a diagram or an equation) that demonstrates the time sequence of inputs, outputs, and states. The logic diagram is derived from any of the following: Boolean Equations (FF-Inputs, Outputs) State Table State Diagram
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3 The part of the combinational circuit that generates external outputs is described algebraically by a set of Boolean functions called output equations . The part of the circuit that generates the inputs of flip-flops is described algebraically by a set of Boolean functions called flip-flop input equations A state equation specifies the next state as a function of the present state and inputs. A(t) and A(t+1) are used to represent current state and the next state for flip- flop. Sequential Circuit Analysis
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State Table Characteristics State table a multiple variable table with the following four sections: Present State the values of the state variables at time (t).
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