Find a state machine diagram for a trafic light controller that works as follows: A timing signal

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Find a state machine diagram for a trafic light controller that works as follows: A timing signal T is the input to the controller. T deines the yellow light interval, as well as the changes of the red and green lights. The outputs to the signals are deined by the following table:

Output GN YN RN GE YE RE Light Controlled Green Light, North/South Signal Yellow Light, North/South Signal

While T = 0, the green light is on for one signal and the red light for the other. With T = 1, the yellow light is on for the signal that was previously green, and the signal that was previously red remains red. When T becomes 0, the signal that was previously yellow becomes red, and the signal that was previously red becomes green. This pattern of alternating changes in color continues. Assume that the controller is synchronous with a clock that changes much more frequently than input T.

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Related Book For  answer-question

Logic And Computer Design Fundamentals

ISBN: 9780133760637

5th Edition

Authors: M. Morris Mano, Charles Kime, Tom Martin

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