Download AKTU B-Tech 4th Sem 2014-15 Introduction To Microprocessor Question Paper

FirstRanker.com

NEC-409

(Following Paper ID and Roll No. to be filled in your Answer Book)

--- Content provided by‍ FirstRanker.com ---

PAPER ID: 131409

Roll No.

B. Tech.

(SEM. IV) THEORY EXAMINATION, 2014-15

INTRODUCTION TO MICROPROCESSOR

--- Content provided by‍ FirstRanker.com ---

Time: 3 Hours] [Total Marks: 100

1. Attempt any FOUR questions of the following: 4×5=20

   1. Explain the evolution of microprocessor in brief.

   2. Determine the result of A after the execution of the following program:

      MVI A, 13H

      --- Content provided by‌ FirstRanker.com ---

      INR A

      XRA A

      ADI 41 H

      ADD A

   --- Content provided by​ FirstRanker.com ---

   3. How instruction cycle, machine cycle and clock cycle are related? Explain them with proper sketches?
   4. Write ALP to load A with 40 H & subtract 29 H from it. Multiply the 'result by 2 & store the result in the Register L.
   5. Explain the difference between (1) RAM and ROM (2) SIM and RIM.
   6. Explain the Memory mapped I/O and Peripheral Mapped I/O.

--- Content provided by⁠ FirstRanker.com ---

2. Attempt any FOUR questions of the following: 4×5=20

   1. List the four operations commonly performed by the MPU.
   2. What is flag? Explain each flag of 8085 microprocessor.
   3. How many address lines are necessary to address 8 K byte of memory?
   4. What is function of accumulator?

   --- Content provided by⁠ FirstRanker.com ---

   5. What is transparent latch, and why it is necessary to use a latch with output device?
   6. If the clock frequency is 5 MHZ, how much time is required to execute an instruction of 18-T states?

3. Attempt any two questions of the following : 2×10=20

   1. Explain the interrupts used in 8085 briefly. What is the difference between 8085 & 8086?

   --- Content provided by​ FirstRanker.com ---

   2. With a neat diagram describe the internal architecture of 8085. State the function of each block shown.
   3. What is the difference between Maximum and Minimum mode of operation in 8086?

4. Attempt any TWO questions of the following: 2×10=20

   1. Discuss the various logic devices used in interfacing circuits.

   --- Content provided by‍ FirstRanker.com ---

   2. Explain the function of the following instructions :

      1. SIM
      2. PUSH
      3. DAA
      4. XCHG

      --- Content provided by‍ FirstRanker.com ---

      5. CALL
   3. 1. Draw the timing diagram of the following instruction : ADD B
      2. CALL 2050 H.

   --- Content provided by​ FirstRanker.com ---

FirstRanker.com