SPPU Computer Engineering (Semester 4)
Microprocessor and Interfacing Techniques
December 2015
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Solve any one question from Q1 and Q2
1 (a) Draw and explain architecture of i7 processor with neat sketch.
6 M
1 (b) List the difference between .com and .exe.
3 M
1 (c) Explain the following 80386 addressing modes with appropriate examples:
i) Based scaled index addressing mode with displacement.
ii) Direct addressing mode.
iii) Register indirect addressing mode.
3 M

2 (a) Write initialization instruction for 8259 to meet the following specifications:
i) Interrupt type 64
ii) Level triggered, single, ICW4 needed
iii) Mask interrupts IR5 and IR5.
4 M
Solve any one question from Q3 and Q4
2 (b) Write a short note on TSR.
4 M
2 (c) List the difference between Near and Far procedure.
4 M

3 (a) Draw and explain the block diagram of 8255 (PPI).
4 M
3 (b) List the difference between synchronous and asynchronous communication with respect to 8257.
2 M
Solve any one question from Q5 and Q6
3 (c) Draw the control word format of 8279 for the following commands:
i) Display Inhibit/Blanking
ii) Keyboard/Display mode at
iii) Write display RAM.
6 M

4 (a) Explain interfacing of DMA with 8086 with a neat diagram.
4 M
4 (b) Write a program to generate a square wave of IMS with i/p frequency of 750 kHz using 8253.
Design appropriate control word for counter I.
4 M
4 (c) Define the following terms:
i) Accuracy
ii) Conversion time
iii) Monotonicity
iv) Offset error.
4 M

Solve any one question from Q7 and Q8
5 (a) Draw and explain status and control word format of 8087.
6 M
5 (b) Explain with proper block diagram, operating of 8086 in maximum mode.
7 M

6 (a) Explain the following instructions of 8087 with example:
iii) FLDPI
3 M
Answer the following:
6 (b) Explain any four data types of 8087 with proper format.
4 M
6 (c) Draw 8086 based minimum mode system showing 4×4 matrix keyboard using 8255.
6 M

7 (a) Write the features of i5 processor.
4 M
7 (b) Write short note on Serial ATA controller and QPI.
4 M
7 (c) Draw and explain block diagram of ICNIO configuration.
5 M

8 (a) Draw and explain block diagram of i5 motherboard.
7 M
8 (b) Explain the features of 82807 JIIR I/O controller hub.
4 M
8 (c) Draw basic blocks of Intel X58 chipset.
2 M

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