Design a synchronous sequential circuit with D-flip-flops for a state diagram shown in Figure 4(b). The state diagram has eight states (000, 001, 010, 011, 100, 101, 110, 111) with the following transitions: 110→101, 010→000, 000→001, 001→100, 100→011 is not present (011→111), 100→111 is not present, 111→101, and 100 is reached from 011.

2Medium10 marks

(i) Name various registers in 8085 microprocessor. Which of these registers are of 16-bit length?

(ii) Explain indirect addressing modes in 8085 microprocessor with suitable example.

3Medium20 marks

With the help of a neat diagram, explain the working principle and characteristics of a linear variable differential transformer (LVDT). Why is the frequency of excitation in primary winding kept very high as compared to frequency of the signal detected? Write three advantages and disadvantages of LVDT also.

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