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Unformatted text preview: ELEC 3500: Assignment 4 Due on 1st April at 10:00am in assignment dropbox. Total marks: 20 1. The fastest pulse in a given system that needs to be captured is observed to have a duration of 10ns. The setup time and hold time of the flip-flops in the design are given to be 1ns and 0ns respsctively. Calculate the minimum frequency of the clock in the design. 2 marks 2. The state diagram shown below describes a synchronous FSM with inputs x, y and z. z is a synchronous signal wheras x and y are asynchronous. Is there a problem with this design? If so, suggest a solution to the problem. 3 Marks z 001 010 111 000 z y y z x z x 110 100 S1 S2 S3 S4 S5 S6 z 3. Interface the gadget with the FSM shown in the following figure using debouncing. 3 Marks D1 D2 D3 D4 Gadget FSM Clock V1 V2 V3 V4 4. Find the maximum delay in the clock buffers for the shift registers shown. t clk = 10 ns (a) 2 Marks D C D C D C For all flip-flops Clock 2 Clock 3 Clock 1 t skew 1- 2 t skew 2- 3 D 1 D 2 D 3 Q 1 Q 2 Q 3 t P D = 1 ns t P D = 1 ns t CHQV = 2 ns t hold = 0 ns (b)...
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