Download DBATU B.Tech 2019 March 4th Semester Microprocessor Question Paper

DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE – RAIGAD -402 103

Mid Semester Examination – March - 2019

Branch: B.Tech (Electronics& Telecommunication) Sem.:- IV

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Subject Code:- BTEXC403 Subject: Microprocessor

Date:- 13/03/2019 Time:-1 Hr. Marks: 20

Instructions:- Assume data if required

1. Q.No.1 Fill in the blanks (Marks) (co)

   1. 8085 has --------address lines (06)

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      1. 8
      2. 16
      3. 18
      4. 32

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   2. How much memory can be accessed by 8085

      1. 2 k byte
      2. 1 k byte
      3. 3 k byte
      4. none of these

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   3. MOV A,B instruction is used to transfer data from

      1. B to A
      2. A to B
      3. A to A

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      4. none of these

   4. ANI instruction is used to

      1. Masking
      2. Unmasking

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      3. both a and b
      4. none of these

   5. how many bit data bus 8085 is

      1. 8 bit

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      2. 16 bit
      3. 32 bit
      4. 64 bit

   6. ALE pin of 8085 is

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      1. Address latch enable
      2. arithmetic logic enable
      3. address logic enable
      4. none of these.

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2. Q.No. 2 Solve any two of the following:

   1. Explain addressing modes with example in detail (3x2) co (1)

   2. Subtract two 8 bit numbers available in reg B and reg C,result will be stored in 2201H memory location co (2)

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   3. Write an instructions to i. load 00H in accumulator ii. co(2) Decrament accumulator iii. Move content of accumulator to Reg B

3. Q.No.3 Solve any one of the following 8

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   1. Write an assembly language program to find largest number from series of numbers available in memory location from 2301H on words, store result in 2400H. co(2)

   2. What is interrupt ? what are different types of interrupts? Explain RIM and SIM instructions. co(4)

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