Microprocessor and Microcontrollers (June – 2014) [IDOL - Revised Course | Question Paper]

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B.Sc.IT: Semester – II

[Microprocessor and Microcontrollers]

Question Paper (June – 2014) [Revised Course]

Time: 3 Hours
Total Marks: 100

N.B.:    (1) All Questions from 1 to 7 are Compulsory.
             (2) Figure To right indicate the marks.

Q.1 Attempt Both The Question: (10 Marks)
(A) Differentiate between SRAM and DRAM.
(B) Explain the flag register of microprocessor 8085 in detail with the significance of each flag.

Q.2 Attempt Any Three From The Following: (15 Marks)
(A) What is a Tri-State Buffer? Explain its types with suitable diagrams.
(B) What is Decoder? Explain 3 to 8 Decoder in detail.
(C) Write a short note on:
      (i) EPROM
      (ii) EEPROM
(D) Explain Chip Select Logic using Logic Gates.

Q.3 Attempt Any Three From The Following: (15 Marks)
(A) Write a short note on system bus of microprocessor with suitable example.
(B) Explain Registers of Microprocessor 8085.
      (i) Accumulator
      (ii) Stack Pointer
      (iii) Program Counter
(C) Explain in detail the following pins of Microprocessor 8085 in detail.
      (i) TRAP
      (ii) ALE
      (iii) READY
(D) Differentiate between I/O and memory mapped I/O.

Q.4 Attempt Any Three From The Following: (15 Marks)
(A) Explain Register Indirect Addressing Modes in 8085 Microprocessor with suitable example.
(B) Explain following instructions in microprocessor 8085.
      (i) RAL
      (ii) RLC
      (iii) JMP Address
(C) Explain immediate addressing modes in 8085 Microprocessor with suitable example.
(D) Explain following instructions in Microprocessor 8085.
      (i) RAR
      (ii) XCHG
      (iii) RRC

Q.5 Attempt Any Three From The Following: (15 Marks)
(A) What is Cache Memory? Why is it needed?
(B) What are the benefits of RAID?
(C) What is a Bus? Explain the System Bus Structure in Modern Computer System.
(D) Explain PCI Bus in detail.

Q.6 Attempt Any Three From The Following: (15 Marks)
(A) Describe the PSW Register of 8051 Microcontroller.
(B) Describe Internal Memory Structure in Modern Computer System.
(C) Explain how stacks are accessed in 8051 Microcontroller.
(D) Write a short note on Special Function Register in 8051 Microcontroller.

Q.7 Attempt Any Three From The Following: (15 Marks)
(A) Explain following instructions in Microprocessor 8051: –
      (i) MUL AB
      (ii) INC DPTR
      (iii) CPL A
      (iv) CPL C
      (v) RET
(B) Explain following Addressing Modes in 8051 Microprocessor with suitable example.
      (i) Register Addressing Mode
      (ii) Direct Addressing Mode
(C) Explain PORT following instructions in microcontroller in detail.
(D) Explain following instructions in Microcontroller 8051: –
      (i) DIV AB
      (ii) MOV DPTR, #400H
      (iii) CLR A
      (iv) ADD A, RD

      (v) SWAP A

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