Digital Design_ Principles and Practices, Chegg Solution Manual_parte_376

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Step 1 of 3 7.085E Refer to the Figure 7-84 from the text book. Use the internal state variables of the pulse-catching circuit of the Figure 7-94, and draw the timing diagram as shown in the Figure 1. Time period P R PD Y1 Y2 Figure 1 Step 2 of 3 The waveforms starts with the state 00 and the behaviour of internal variables are as shown in the Figure 1. The behavior of the Figure 1 is as shown in Table 1. Table 1 P R Y1 Y2 0000 0100 1000,1 1110 Step 3 of 3 Assuming the time period to be 10 nanoseconds and the propagation delay to be 3 nanoseconds, then the transitions are as shown in the Table 1. When PR=10 and 00 consecutively then Y2 changes its state from 0-to-1 after the propogation delay of 3 nanoseconds and Y2 remains in the same state when PR=00. Thus, the timing diagram is drawn showing the internal state variables of the pulse-catching circuit.