Download SGBAU BCA 2019 Summer 4th Sem Advanced Microprocessors n Microcontroller Question Paper

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B.C.A. Part-II Semester—IV Examination

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ADVANCE MICROPROCESSORS AND MICROCONTROLLER

Paper : 4ST5

Time : Three Hours] [Maximum Marks : 60

Note :— (1) ALL questions are compulsory.

(2) All questions carry equal marks.

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(3) Draw neat sketches wherever necessary.

1. (a) Enlist the features of 80286 microprocessor. 4
   (b) Draw the neat diagram of 80286 and explain it. 8
   OR
2. (a) Explain indexed and based plus index addressing mode with suitable example. 6
   

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   (b) Describe the working of 80286 in real mode. 6
3. (a) What is paging ? How it is achieved in 80386 ? 6
   (b) Explain flag register in 80486 microprocessor. 6
   OR
4. (a) Explain protected mode of 80386 microprocessor. 6
   

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   (b) Explain register organisation of 80586 microprocessor. 6
5. (a) Draw a block diagram of 8051 and explain it. 6
   (b) Explain interrupts in 8051 microcontroller. 6
   OR
6. (a) Give the comparison between microprocessor and microcontroller. 6
   

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   (b) Explain flags of 8051 controller. 6
7. (a) Describe the addressing modes of 8051. 8
   (b) Write ALP for addition of two 8 bit numbers. 4
   OR
8. (a) Explain the classification of instruction set of 8051. 6
   

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   (b) Write ALP for division of two 8 bit numbers. 6
9. (a) Explain serial and parallel communication of 8051. 6
   (b) Draw suitable diagram of interfacing of DAC with 8051. 6
   OR
10. (a) Explain interfacing of 8051 with 8255 PPL 6
    

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    (b) Explain power saving mode of 8051.

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