Read Section 14.4, Serial Data Code Conversion.
(a) Complete the following timing diagram, showing waveforms for the NRZ, NRZI, RZ, and Manchester coding schemes:
(b) The timing chart of Figure 14-21(b) shows several glitches. By referring to the state table, explain why the second glitch is present.
(c) Consider Figure 14-21. If an error in data transmission occurs, the input sequence X = 01 or 10 could occur. Add an Error state to the state diagram. The circuit should go to this error state if such an error occurs.
(d) Work Problem 14.9.
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