4) Design for test Give the scheme and explain the operation of a SCAN flip-flop with...

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4) Design for test Give the scheme and explain the operation of a SCAN flip-flop with its various data signals and commands. Reproduce the simplified circuit diagram below and add the insertion of SCAN and explain the principle of the method. EP1 EP2 EP3 EP4 Log ES1 ES2 ES3 SP1 Comb OD SS1 SS2 SS3 QDK QD < Explain in a few lines how it is possible to use the SCAN method to test delay faults. Considering the LFSR below initialized with the 0001 state, give the graph and the polynomial. Is the polynomial primitive? D.......... 4) Design for test Give the scheme and explain the operation of a SCAN flip-flop with its various data signals and commands. Reproduce the simplified circuit diagram below and add the insertion of SCAN and explain the principle of the method. EP1 EP2 EP3 EP4 Log ES1 ES2 ES3 SP1 Comb OD SS1 SS2 SS3 QDK QD < Explain in a few lines how it is possible to use the SCAN method to test delay faults. Considering the LFSR below initialized with the 0001 state, give the graph and the polynomial. Is the polynomial primitive? D..........