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# hw16_SLN - ECE 211 HW 16 SOLUTIONS p 1/12...

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ECE 211 HW 16 SOLUTIONS p 1/12 //home/vdimitrov/8932/59f5e9e8c7404f09c6f0b22c19c12a1c3d1d7e95.doc HW Set 16 – SOLUTIONS 1. The clocked circuit shown has a ROM for its combinational circuit. Determine the State Transition Diagram. Solution: Rewrite the ROM contents: Q1 = A2 Q0 = A1 X = A0' Q1+ = data1 Q0+ = data0 0 0 1 0 0 0 0 0 1 0 0 1 1 1 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 1 1 1 1 1 0 1 1 0 1 1 State Transition Diagram: (next page)

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ECE 211 HW 16 SOLUTIONS p 2/12 (1. ) State Transition Diagram:
ECE 211 HW 16 SOLUTIONS p 3/12 2. A clocked circuit with state Q1 Q0 and one input X has the State Transition Diagram shown. The notation "0, 1" along an arrow means that the transition occurs when X is either 0 or 1. (a) Obtain the Truth Table for the combinational circuit. (b) For the clock and X waveforms shown, find the Q1Q0 sequence. Initially Q1 Q0 = 0 0 as shown. Assume that the circuit contains a register that is triggered on the rising edge of the clock. Solution: (a) Truth Table In2 = Q1 In1 = Q0 In0 = X Out1 = Q1+ Out0 = Q2+ 0 0 0 0 0 0 0 1 0 1 0 1 0 0 1 0 1 1 1 0 1 0 0 1 0 1 0 1 1 1 1 1 0 0 0 1 1 1 0 0

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ECE 211 HW 16 SOLUTIONS p 4/12 (2. Solution) (b)
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hw16_SLN - ECE 211 HW 16 SOLUTIONS p 1/12...

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