B.E-B.E Electronics and Communication Engineering (Sathyabama University, Chennai, Tamil Nadu-2010)
Saturday, 24 August 2013 10:02Duraimani
(Established under section 3 of UGC Act,1956)
Course & Branch :B.E - E&C Max. Marks :80
Title of the Paper :Microprocessors & Microcontrollers
Sub. Code :517505/617502 Time : 3 Hours
Date :30/04/2010 Session :AN
PART - A (10 x 2 = 20)
Answer ALL the Questions
1. What is the difference between Stack Pointer and other register pairs?
2. Why is it that in the I/O mapped mode, only 256 input and 256 output devices can be addresse?
3. Differentiate the SUB and CMP instructions of 8085.
4. What is instruction cycle?
5. What are the addressing modes used in the following instructions? (a) MVI M, 03FH
(b) PUSH B
6. Can there be more than one HLT in an assembly program?
7. What are the flags available in 8051 Microcontroller?
8. How are microcontrollers different from Microprocessors?
9. What are the various methods of DMA transfer?
10. How are the high power devices interfaced?
PART – B (5 x 12 = 60)
Answer All the Questions
11. Draw and discuss the functional block diagram of 8085 Microprocessor.
(or)
12. Explain the architecture of 8086 Microprocessor.
13. Discuss the various addressing modes of 8086 microprocessor.
(or)
14. Explain in detail the 8085 instruction set.
15. Write a 8085 based assembly language program to convert binary number to BCD code.
(or)
16. Design a subroutine for the 8085 that multiplies two single –byte integers X and Y and produces a 16 bit product.
17. With neat circuit diagram explain the architecture of 8051 Microcontroller.
(or)
18. Discuss the timer and Interrupts available in 8051 Microcontroller.
19. Explain in detail the functional block diagram, operating modes and programming of 8255 programmable peripheral interface.
(or)
20. Describe the external memory and its interfacing with 8085.
| Earning: ₹ 3.50/- |
