Wednesday 28 December 2011

DIPLOMA MICROPROCESSORS QUESTION PAPER OCT/NOV-2012


C-09-EC-
3470
BOARD DIPLOMA EXAMINATION, (C-09)
OCT/NOV-2012
DCME-FOURTH SEMESTER EXAMINATION
DIPLOMA MICROPROCESSORS QUESTION PAPER
Time: 3 hours]                   [Total Marks: 80
PART-A
Instructions: (1) Answer all questions
Each question carries three marks.

  1. Write the purpose of INTR and MN/MX pins of 8086.
  2. What are the microcomputer and microprocessor?
  3. State the use of assembler and debugger.
  4. Explain ADD and CMP instructions.
  5. What is the parameter passing in procedures?
  6. What is interrupt? List the interrupts of 8086.
  7. Write an assembly language program to subtract a 16-bit number num2 from another 16-bit number num1 and store at num3.
  8. List any six features of keyboard/display controller.
  9. What is direct memory access?
  10.  List any six features of 8086.
PART-B
Instructions: (1) Answer any five questions.
(2) Each question carries ten marks.
(3) Answers should be comprehensive and the criteria for valuation is the content but not the length of the answer
  1. Explain any five addressing modes of 8086.
  2. Briefly explain any five instructions that affect flags of 8086.
  3. What us subroutines? Explain the CALL and RET instructions of  8086.
  4. write an assembly language program to find large of N 8-bit numbers stored from source and store at result.
  5. Explain the working of USART with diagram.
  6. Draw the diagram of programmable peripheral interface of operations.
  7. Draw and explain the internal block of diagram of Pentium IV processor.
  8. (a) Write the function of instruction queue, sp, ip , bp of 8086.