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Pre-lab: Design and implement on the NEXYS board the following FSM circuit. There is one input called direction. If direction 1, the FSM will make the segments in one 7-segment display (will be referred to as the most significant digit, MSD) move in a clockwise direction around in a circle (i.e., turn on and off the segments in this order: segment a, b, c, d, e, f, a, b,...) and the segments in a neighboring 7-segment display (LSD) move in a counterclockwise direction. If direction 0, the directions will be reversed for both MSD and LSD. Each segment is an active-low LED, which is an output. Therefore, there should be 12 outputs. In addition, segment g in both MSD and LSD should be permanently turned off. List all the inputs and outputs to make sure your understanding is correct. Inputs: Output: (give a name to each one) There should be 6 states. Design the complete circuit. a. b. c. d. a. State diagram Hint: draw the two seven-segment displays in each state and highlight the segments that are on. For example, in the initial state, let segment a on in both digits. b. State table. Make sure every column has a variable name on top. c. Observe any relationship between MSD and LSD d. Design the circuit using D flip-flops. Draw the circuit. You may use all the
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