M.Tech DEGREE I SEMSTER EXAMINATION IN ELECTRONICS

(SIGNAL PROCESSING) – MODEL PAPER – 2012

SP107 – DIGITAL SIGNAL PROCESSORS

1) a. Explain the concept of circular buffering. List down the steps used to

implement an FIR filter using Digital Signal Processors. (5)

b. With suitable diagrams, explain the features of Harvard and Super

Harvard DSP architectures. (5)

OR

2) a. What is multiprocessing? How is it achieved in high level DSP

applications? (5)

b. Distinguish between fixed point and floating point processors. How will

you choose between a fixed point and a floating point processor for your

applications? (5)

3) a. Briefly describe the architecture of TMS320C55x processors. (5)

b. Explain the pipelining and parallelism achieved in TMS320C55x DSP.

(5)

OR

4) a. Explain the various addressing modes used in TMS320C55x processor.

(5)

b. What is CCS? How is it useful in DSP programming? Demonstrate with a

sample program development. (5)

5) a. Describe the two level internal memory architecture of TMS320C6x.

(5)

b. Explain code improvement. How is it achieved? Discuss the constraints.

(5)

OR

6) a. Explain multichannel buffered serial ports and DMA. (4)

b. Explain how the function of flag in conventional processors is achieved in

TMS320C6x family DSP. (3)

c. Explain the instruction types in TMS320C6x family DSP. Give examples

for each . (3)

7) a. With block diagram explain the memory organization of SHARC

processor and compare with that of TMS3206x family DSP? (5)

b. Explain how multiprocessing is achieved in SHARC processor? Also

explain host interface ? (5)

OR

8) a. Explain link ports in SHARC processor .what are the interrupt types in

this processor? (5)

b. Discuss the various functions of program sequences in a SHARC

processor? (5)

9) a. Explain the hardware and software considerations of a sine wave

generator? (5)

b. Explain a DTMF tone detection scheme using a typical DSP processor.

State the algorithms used for its implementation? (5)

OR

10) a. Explain the principle of adaptive echo cancellation? (5)

b. Explain how speech enhancement algorithm is implemented in DSP?

(5)