BSc IT Sem II 2021 2022 May 2022 MICROPROCESSOR ARCHITECTURE Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q2 All Questions are compulsory
2. Q3 Right side indicates marks
3. Q1 Attempt the following 40 marks
4. Q1 This flag is used to indicate parity of the result i.e. numbers of one’s. If the result contains even numbers of one’s this flag is set to 1
5. Q2 Which interrupt has the highest priority?
   • a) TRAP b) RST7.5
6. Q3 This signal indicates that another master is requesting the use of the address and
   • a) HOLD b) HLDA
   • c) RESET d) READY
7. Q4 The data bus of Microprocessor is
   • a) Unidirectional b) Bidirectional
   • c) Unidirectional as well as bidirectional d) None of these
8. Q5 LDA is instruction
   • a) arithmetic b) logical
9. Q6 If A=56H, B=82H after execution of ANA B, content of A= XCHG instruction of 8085 exchange the content of
10. Q8 Which instruction is required to rotate the content of accumulator one bit right along with
11. Q9 The process of storing the data in the stack is called the stack
    • a) Pulling into b) Pulling out
    • c) Pushing into d) Pushing out
12. Q10 In case of nested subroutines the return addresses are stored in
13. Q11 The books arranged one on the other ona table isanexample
    • a) Queue b) Stack
14. Q12 The stack is useful for
    • a) storing the register status of the processor b) temporary storage of data
    • c) storing contents of registers temporarily inside the all of the mentioned
15. Q13 The decimal number 80 is represented in its BCD form as
16. Q14 A group of bits used to represent a symbol is called a
    • a) code b) byte
    • c) nibble d) bit
17. Q15 The weights used in Binary coded decimal code are
18. Q16 Write the decimal equivalent for (110001) is
19. Q17 RISC processor's first pipeline stage is
20. Q18 In a pipelined processor, a pipeline has ends
    • a) one b) two
    • c) three d) four
21. Q19 The CMPXCHG8B instruction is an extension of instruction
22. Q20 APIC stands for
23. Q2 Attempt the following
    • A) Answer any ONE
24. Q1 Explain the functions of following units of 8085:
    • iii) Timing and control iv) Temp register
25. Q2 Write a short note on Flag Register
    • B) Answer any ONE
26. Q1 Explain T-state, Machine cycle and Instruction Cycle
27. Q2 Explain the types of computers
28. Q3 Attempt the following
    • A) Answer any ONE. 4
29. Q1 Draw and explain the timing diagram for execution of OUT instruction
30. Q2 Draw and explain the concept of Input Interfacing
    • B) Answer any ONE
31. Q1 Explain the working of following instructions:
32. Q2 Explain the working of following instructions:
33. Q4 Attempt the following
    • A) Answer any ONE
34. Q1 Specify the contents of memory location XX70H to XX73H after execution of the
35. Q2 Draw and explain the concept of Nesting
    • B) Answer any ONE. [O3marks]
36. Q1 List down the common source of errors
37. Q2 Write a 8085 microprocessor program in assembly language to find square of a number at memory location C200 H. Store the LSB of result at memory location C300H and MSB of result at memory location C301H
38. Q5 Attempt the following
    • A) Answer any ONE. 4
39. Q1 Draw and explain DMA
40. Q2 Explain 8085 vectored interrupts
    • B) Answer any ONE. [O3marks]
41. Q1 Write a short note on system hardware and storage memory
42. Q2 What is OS? Explain the types of OS
43. Q6 Attempt the following
    • A) Answer any ONE
44. Q1 Draw and explain block diagram of Pentium Pro
45. Q2 Draw and explain the Pentium Pro dispatch and execution unit
    • B) Answer any ONE. [O3marks]
46. Q1 What is Pipeline in processor? Explain
47. Q2 Compare Pentium and Pentium Pro Processor

Read from the scan above, so a character or two may differ. The scan is the original.