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(a) Complete the following timing diagram for a J-K flip-flop with a falling-edge trigger and asynchronous ClrN and PreN inputs. ClrN PreN Clock Q

(a) Complete the following timing diagram for a J-K flip-flop with a falling-edge trigger and asynchronous ClrN and PreN inputs. ClrN PreN Clock Q

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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**Timing Diagram for a J-K Flip-Flop:** To complete the exercise, a timing diagram for a J-K flip-flop with a falling-edge trigger and asynchronous ClrN (Clear) and PreN (Preset) inputs is provided. The diagram includes the following signals: 1. **ClrN**: The clear input signal, which is high for most of the duration but is briefly brought low to asynchronously clear the flip-flop. 2. **PreN**: The preset input signal, which is initially low, briefly goes high, returns to low, and then goes high again to asynchronously set the flip-flop. 3. **J**: The J input signal for the flip-flop, which toggles between high and low states. 4. **K**: The K input signal for the flip-flop, which also toggles between high and low states. 5. **Clock**: The clock signal, which is a periodic waveform with falling edges indicated. These falling edges trigger the flip-flop to evaluate inputs J and K. 6. **Q**: The output of the flip-flop, which changes state based on the inputs J, K, and the asynchronous inputs ClrN and PreN, particularly at the falling edges of the clock signal. **Explanation:** - At the beginning, the flip-flop starts at a cleared state due to ClrN being low. - The output Q is determined by the combination of signals at each falling clock edge. - Asynchronous inputs (ClrN and PreN) can force the flip-flop into a specific state regardless of the clock. **Purpose and Learning Objective:** This exercise is designed to deepen the understanding of the timing and operation of J-K flip-flops, emphasizing the influence of asynchronous inputs and the effect of clock edges on the output state.
Transcribed Image Text:**Timing Diagram for a J-K Flip-Flop:** To complete the exercise, a timing diagram for a J-K flip-flop with a falling-edge trigger and asynchronous ClrN (Clear) and PreN (Preset) inputs is provided. The diagram includes the following signals: 1. **ClrN**: The clear input signal, which is high for most of the duration but is briefly brought low to asynchronously clear the flip-flop. 2. **PreN**: The preset input signal, which is initially low, briefly goes high, returns to low, and then goes high again to asynchronously set the flip-flop. 3. **J**: The J input signal for the flip-flop, which toggles between high and low states. 4. **K**: The K input signal for the flip-flop, which also toggles between high and low states. 5. **Clock**: The clock signal, which is a periodic waveform with falling edges indicated. These falling edges trigger the flip-flop to evaluate inputs J and K. 6. **Q**: The output of the flip-flop, which changes state based on the inputs J, K, and the asynchronous inputs ClrN and PreN, particularly at the falling edges of the clock signal. **Explanation:** - At the beginning, the flip-flop starts at a cleared state due to ClrN being low. - The output Q is determined by the combination of signals at each falling clock edge. - Asynchronous inputs (ClrN and PreN) can force the flip-flop into a specific state regardless of the clock. **Purpose and Learning Objective:** This exercise is designed to deepen the understanding of the timing and operation of J-K flip-flops, emphasizing the influence of asynchronous inputs and the effect of clock edges on the output state.
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