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Download PTU B.Tech 2021 Jan EE 5th Sem 78311 Microprocessors Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January EE 5th Sem 78311 Microprocessors Previous Question Paper

This post was last modified on 26 June 2021

This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University


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Roll No. | [ L[] | [ 1] Total No. of Pages : 02

Total No. of Questions : 18

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B.Tech. (Electrical & Electronics)/(Electrical Engineering)/

(Electronics & Electrical) (Sem.=5)

MICROPROCESSORS

Subject Code : BTEE-503-18

M.Code : 78311

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Time : 3 Hrs. Max. Marks : 60

INSTRUCTION TO CANDIDATES :

  1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
  2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
  3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A

Answer briefly :

  1. What do you mean by CPU timing? Explain.
  2. How microprocessor differentiate between data and instruction code? Explain.
  3. List the advantages of higher level languages.
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  5. Explain the need of stack.
  6. Discuss the concept of pre-fetch queue in 8086.
  7. What is memory segmentation? Explain.
  8. Differentiate memory mapped I/O and Peripheral 1/0.
  9. What is a flow chart? Discuss its significance.
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  11. What is the function of USART? Explain.
  12. Why interrupt controller is required? Explain.

SECTION-B

Discuss the following instructions w.r.z. 8085 :

a) XTHL b) DAA c) STC d) NOP and HLT e) XCHG

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Draw a flow chart and write a program to find out the largest number from a set of ten numbers stored at a memory location 2050H using 8085 microprocessor instructions.

What is the need of addressing modes? Discuss various addressing modes of 8086 microprocessor with the help of examples.

Draw a flow chart and write a program using 8086 to count from 0 to 9 with a one second delay between each count. At the count of 9, the counter should reset itself to zero and repeat the sequence continuously. The clock frequency of the microcomputer is 1 MHz.

Discuss (in detail) Mode 0 and Mode 1 of 8253 chip.

SECTION-C

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Discuss different modes of programmable peripheral interface 8255A in detail? Explain the control words of 8255 in I/O and BSR modes.

Draw and explain the architecture of 8085 microprocessor with the help of a functional block diagram.

Explain the following :

a) Hardware and software interrupts in 8086

b) Microprocessor and Microprocessor development systems

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.



This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University

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