Reg. No. :

M.E./M.Tech. DEGREE EXAMINATION, JANUARY 2011.

First Semester

Applied Electronics

(Common to VLSI Design and Communication Systems)

248103 — ADVANCED MICROPROCESSORS AND MICROCONTROLLERS

(Regulation 2010)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 × 2 = 20 marks)

1. What are the merits of RISC?

2. What is paging?

3. What is the function of memory management unit of a processor?

4. How an interrupt in processed in a Pentium processor?

5. Give two examples of Thumb instruction set.

6. How multiple data are transferred using a single instruction in an ARM

environment?

7. How RTC is interfaced in 68HC11?

8. How to program 68HC11 to operate at 9600 band?

9. Draw the format of a data transfer packet of I2C.

10. How many I/O ports are supported in a PIC microcontroller?

Question Paper Code : 20093

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PART B — (5 × 16 = 80 marks)

11. (a) (i) Describe in detail about pipelining and its hazards. (10)

(ii) Write briefly about memory hierarchy. (6)

Or

(b) (i) Discuss about the different types of instruction available in a

microprocessor architecture. (10)

(ii) Write a note on RISC. (6)

12. (a) Describe the architecture of Pentium. (16)

Or

(b) (i) With suitable examples explain the addressing modes available in

Pentium. (10)

(ii) How multitasking is carried out in a Pentium environment?

Explain. (6)

13. (a) (i) Explain the bus architecture of an ARM processor. (8)

(ii) Write a program to sort N number of data. (8)

Or

(b) (i) Explain the addressing modes of an ARM processor. (9)

(ii) Write a program to find the cube of a given number using lookup

table method. (7)

14. (a) (i) Using PWM write a program to control the speed of motor using

68HC11. (8)

(ii) Explain the serial communication interface of 68HC11. (8)

Or

(b) (i) Explain the operating modes of 68HC11. (6)

(ii) Discuss about the A/D interface and the interrupt system of

68HC11. (10)

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15. (a) (i) Explain the modes of operation of timer in a PIC microcontroller. (8)

(ii) Discuss about the VART interface of PIC microcontroller. (8)

Or

(b) (i) Discuss briefly the architecture of PIC microcontroller.

(ii) Write a note on A/D converter and PWM in PIC microcontroller

environment.

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