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Monday, November 21, 2016

EE6502 Microprocessors and Microcontrollers Nov Dec 2016 Important Questions

Important questions for Nov Dec 2016 EE6502 Microprocessors and Microcontrollers examinations conducting by Anna University Chennai
B.E./ B.Tech. DEGREE EXAMINATION Nov Dec 2016
05th Semester / Fifth Semester / III Year
Department of EEE
EE6502 Microprocessors and Microcontrollers
(Regulation 2013)
Nov Dec 2016 Important Questions

Important 16 Marks Questions with answers (All five units) are listed for EE6502 Microprocessors and Microcontrollers subject

1. Explain with a neat block diagram the architecture of 8085 microprocessor. (16)
2. Write about the pin configuration of 8085 processor and explain them in detail. (16)
3. (i) Describe the interrupts of 8085 Microprocessor. (8)
(ii) Draw and explain the flag register of 8085 in brief. (8)
4. 10. Design an interface circuit for microprocessor controlled system to meet the following specifications. (16)
(a) 74LS138: 3to 8 decoder
(b) 2732 (4K x 8): EPROM- address range should begin at 0000h and additional 4K memory space should be available for future expansion.
(c) 6116 (2K x 8): CMOS R/W memory
5. Explain the I/O read and write operation of 8085 processor with timing diagram (16)
6. (i) Describe with suitable examples the data transfer instructions in 8085 microprocessor. (8)
(ii) Write an 8085 assembly language program to sort numbers ascending orders. (8)
7. With example explain the different addressing modes of 8085 and the different types of instruction. (16)
8. (i) Compare the similarities and differences of CALL and RET instructions with PUSH and POP instructions. (8)
(ii) Write an assembly language program based on 8085 microprocessor instruction set to search the smallest data in a set. (8)
9. Explain the operations carried out when 8085 executes the instructions
(i) MOV A, M (ii) XCHG (iii) DAD B (iv) DAA
10. (i) Explain the process of writing assembly Language program with the help of example. (10)
(ii) What do u mean by hand assembly? Explain with the help of example. (6)
11. Explain with a neat block diagram the architecture of 8051 microcontroller. 
12. (i) Explain in detail the different methods of memory address decoding in 8051. (8)
(ii) Explain the operation of stack in 8051. (8)
13. Briefly explain the internal port structure of 8051 microcontroller (16)
14. Discuss about the organization of internal RAM and special function registers of 8051 microcontroller in detail. (16)
15. Explain in detail pin diagram of 8051 microcontroller (16)
16. Draw the Block diagram of 8255(PPI) and explain its various operating modes. (16)
17. Discuss the various modes of operation of the programmable interval timer 8254. (16)
18. Describe how 8279 keyboard and Display controller is interfaced to 8085 or 8051. (16)
19. Draw the Block diagram of 8259(PIC) and explain the initialization command words. (16)
20. Explain how the serial data transfer can be performed using 8251 USART. (16)
21. How to interface a 4 x 4 matrix keyboard using 8051 microcontroller and explain how to identify the key press.
22. Explain with a program to rotate the stepper motor in both clockwise and anticlockwise direction using 8051 microcontroller. 
23. Write an assembly language program based on 8051 microcontroller instruction set to perform four arithmetic operations on two 8 bit data. 
24. Explain about various types of jump instructions according to range.
25. Explain with a neat diagram the closed loop control of servomotor using microcontroller.

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