Monday, July 28, 2014

MICROPROCESSORS AND MICROCONTROLLERS - 2 (MPMC) DECEMBER 2013 [EXTC] ELECTRONICS AND TELECOMMUNICATION SEMESTER 6

MICROPROCESSORS AND MICROCONTROLLERS - 2 (MPMC) DECEMBER 2013 [EXTC] ELECTRONICS AND TELECOMMUNICATION SEMESTER 6

Con. 7339-13.                                                                                                   LJ - 11488
                                                           (3 Hours)                                        [Total Marks : 100]

N. B. : (1) Question No. 1 is Compulsory.
           (2) Solve any four questions from remaining questions.

1. (a)Design memory system for 8086 microprocessor with following specifications :-12
   (i) 8086 microprocessor working in mininimum mode at 10MHz frequency.
  (ii) 32 KB EPROM using 8 KB Chips
  (iii) 16 KB SRAM using 4 KB Chips.
Explain the design and show memory address map.
    (b)Draw and explain typical I/O port pin structure of PIC 18.4
    (c)Describe Mode Set Register of DMA controller 8257.4

2. (a)

Explain control word and status word of 8087 NDP.

10
    (b)Describe addressing modes of PIC 18.10

3. (a)

Interface Seven segment dispaly with PIC 18 and explain its working.

8
    (b)Draw and explain timing diagrams for read operation in minimum and maximum12
mode of 8086 microprocessor.

4. (a)

Explain memory organisation of PIC 18.

10
    (b)With neat diagram explain interfacing of DMA controller 8257 wiith 808610
microprocessor in minimum mode.

5. (a)

Write an assembly language program for 8086 microprocessor to check whether.

10
a string of 10 characters represents Palindrome.
    (b)Interface 8087 NDP with 8086 microprocessor and expalin their interaction.10

6. (a)

Which are the different methods of program looping?Explain each method in short.

10
    (b)Describe how interface chip and I/O Devices are synchronised. Explain it using10
pulse mode.

7.

Write notes on (any four):-

20
      (a) Status register of PIC 18
      (b) Control flags of 8086
      (c) Assembler directives
      (d) Programming model of 8086
      (e) Advantages of memory segmentation.

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