JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II DIGITAL DESIGN USING VERILOG HDL Previous Question Paper (December - 2017 - R15)

B.Tech | II | II | R15 | December - 2017

Answer PaperPaper Code: 124AFMaximum Marks: 75Time: 3 Hours

Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.

PART A

125 marks
a

Explain about strobe tasks.

2 marks

Answer

The $strobe task is used to display simulation data at the very end of a simulation time step, after all other events in that time step have been processed. This ensures that the values displayed are the final, stable values for that time unit.

b

Define logic levels relevant to verilog HDL.

3 marks

Answer

Verilog HDL uses four logic levels to represent signal states: 0 (logic low/false), 1 (logic high/true), x (unknown/uninitialized), and z (high impedance/floating).

c

What is drive strength of a device or gate in verilog.

2 marks

Answer

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d

Explain NOR gate primitive with example.

3 marks

Answer

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e

Define fork-join block.

2 marks

Answer

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f

Define force-release construct with an example.

3 marks

Answer

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g

Design verilog module for 4-bit full adder using dataflow operators.

2 marks

Answer

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h

What is recursive function

3 marks

Answer

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i

Write a short note on design verification.

2 marks

Answer

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j

Explain about implicit model.

3 marks

Answer

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PART B

210 marks
a

Explain the synthesis procedure in verilog HDL.

5 marks

Answer

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b

Classify the data types and explain.

5 marks

Answer

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OR
310 marks
a

Explain different levels of design description in verilog.

5 marks

Answer

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b

What are the functions of programming language interface (PLI)? Explain.

5 marks

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410 marks
a

Write notes on tristate gates. Give the relevant syntax, logic diagrams and excitation tables.

5 marks

Answer

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b

Discuss about strings in detail.

5 marks

Answer

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OR
510 marks
a

Explain continous assignment structures with examples.

5 marks

Answer

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b

Write about net delay with an example.

5 marks

Answer

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610 marks
a

Design verilog module to identify the highest priority interrupts.

5 marks

Answer

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b

Write test bench simulation results of above question with explanation.

5 marks

Answer

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OR
710 marks
a

Write the differences between begin-end and fork-join blocks.

5 marks

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b

Explain about multiple always blocks.

5 marks

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810 marks
a

What do you mean by user defined primitive? Explain the types with examples.

5 marks

Answer

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b

Explain briefly the module paths.

5 marks

Answer

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OR
910 marks
a

Discuss the basic transistor switches.

5 marks

Answer

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b

Explain the computer directives.

5 marks

Answer

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1010 marks
a

Write and explain the verilog module for positive edge trigger flip-flop.

5 marks

Answer

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b

Discuss setup hold, width and period checks used in verilog.

5 marks

Answer

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OR
1110 marks
a

Explain cross coupled NOR latch.

5 marks

Answer

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b

What are the various sequential memory storage models explain in detail.

5 marks

Answer

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About this paper

This page contains the solved question paper with answers of DIGITAL DESIGN USING VERILOG HDL from JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD for B.Tech ECE II II, December - 2017, R15.

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