The document outlines an examination for a VLSI design lab course. It contains 24 questions to be completed in 3 hours. For each question, students are instructed to either simulate a digital circuit using Xilinx ISE 9.1i software or implement the circuit using an XC3S400 FPGA trainer kit. The circuits include adders, encoders, decoders, multipliers, flip-flops, and basic logic gates.

1. ANNA UNIVERSITY PRACTICAL EXAMINATION, APRIL 2011
SUB. CODE: EC2357 QUESTION PAPER SUB: VLSI DESIGN LAB
TIME DURATION: 3 HOURS MAXIMUM MARKS: 100
1. a. Simulate a serial adder using Xilinx ISE 9.1i
b. Implement a 8:3 encoder using XC3S400 FPGA trainer kit.
2. a. Simulate a PRBS generator using Xilinx ISE 9.1i
b. Implement a half adder using XC3S400 FPGA trainer kit.
3. a. Simulate an accumulator using Xilinx ISE 9.1i
b. Implement a full adder using XC3S400 FPGA trainer kit.
4. a. Draw the schematics of a CMOS NAND gate . Generate the layout automatically and
and simulate it.
b. Implement a 3:8 decoder using XC3S400 FPGA trainer kit.
5. .a. Simulate a synchronous updown counter using Xilinx ISE 9.1i
b. Implement a 4 bit multiplier using XC3S400 FPGA trainer kit.
6. a. Simulate a universal shift register using Xilinx ISE 9.1i
b. Implement a half subtractor using XC3S400 FPGA trainer kit.
7. a. Simulate a 8 bit adder using Xilinx ISE 9.1i
b. Implement a 1:8 demultiplexer using XC3S400 FPGA trainer kit.
8. a. Simulate a JK flip-flop using Xilinx ISE 9.1i
b. Implement a full subtractor using XC3S400 FPGA trainer kit
9. a. Simulate a SR flip-flop using Xilinx ISE 9.1i
b. Implement a 4:1 multiplexer using XC3S400 FPGA trainer kit
10. a. Generate the layout of a CMOS inverter and simulate .Measure the dissipated power. Find
also the dissipated power after adding 0.01 pf capacitor at the output.
b. Simulate a 8 bit multiplier using Xilinx ISE 9.1i

2. 11. a. Draw the schematics of the function F= AB + C (A+B) and simulate it.. Generate the SPICE
file.
b. Simulate a T flip flop using Xilinx ISE 9.1i
12. a . Draw the schematics of the function F= (AB + C)D . Generate the layout automatically and
and simulate it.
b. Simulate a D flip flop using Xilinx ISE 9.1i
13. a. Simulate a serial adder using Xilinx ISE 9.1i
b. Implement a 4 bit multiplier using XC3S400 FPGA trainer kit.
14 a. Simulate a PRBS generator using Xilinx ISE 9.1
b. Implement a half subtractor using XC3S400 FPGA trainer kit.
15. a. Simulate an accumulator using Xilinx ISE 9.1i
b. Implement a full subtractor using XC3S400 FPGA trainer kit.
16 a. Draw the schematics of a CMOS NOR gate . Generate the layout automatically and
and simulate it.
b. Implement a 1:8 demultiplexer using XC3S400 FPGA trainer kit.
17. a. Simulate a synchronous updown counter using Xilinx ISE 9.1i
b. Implement a 4:1 multiplexer using XC3S400 FPGA trainer kit.
18. a. Simulate a universal shift register using Xilinx ISE 9.1i
b. Implement a half adder using XC3S400 FPGA trainer kit.
19 a. Simulate a 8 bit adder using Xilinx ISE 9.1i
b. Implement a 8:3 encoder using XC3S400 FPGA trainer kit.
20. a. Simulate a JK flip-flop using Xilinx ISE 9.1i
b. Implement a full adder using XC3S400 FPGA trainer kit.

3. 21. a. Simulate a SR flip-flop using Xilinx ISE 9.1i
b. Implement a 3:8 decoder using XC3S400 FPGA trainer kit.
22. a. Generate the layout of a CMOS inverter and simulate .Measure the dissipated power. Find
also the dissipated power after adding 0.1 pf capacitor at the output.
b. Simulate a 6 bit multiplier using Xilinx ISE 9.1i
23. a. Draw the schematics of the function F= AB +B C +AC and simulate it.. Generate the
Spice file.
b. Simulate a T flip flop using Xilinx ISE 9.1i
24. a. Draw the schematics of the function F= AB C +D . Generate the layout automatically and
and simulate it.
b. Simulate a D flip flop using Xilinx ISE 9.1i