Microprocessor - May 2015

Computer Engineering (Semester 5)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.

1 (a) Draw and explain timing diagram for write operation in minimum mode of 8086. (5 marks)

1 (b) List operating modes of 8253. (5 marks)

1 (c) Write down features of Pentium processor. (5 marks)

1 (d) Write the instruction issue algorithm used in Pentium. (5 marks)

2 (a) Explain protection mechanism used in 80386. (10 marks)

2 (b) Write assembly language program for 8086 to reverse a string of 10 characters. (10 marks)

3 (a) Design 8086 microprocessor based system with following specification
i) Microprocessor 8086 working at 8 Mhz in maximum mode.
ii) 32 KB EPROM using 16 KB chips
ii) 16 KB SRAM using 8 KB chips
Explain the design along with memory address map. (10 marks)

3 (b) Explain branch prediction logic used in Pentium. (10 marks)

4 (a) (i) Explain different data transfer modes of 8237 DMA controller. (5 marks)

4 (a) (ii) Explain Interfacing of 8259 with 8086 in minimum mode. (5 marks)

4 (b) Differentiate between real mode and protected mode. (10 marks)

5 (a) Compare 8086, 80386 and Pentium. (10 marks)

5 (b) Draw architecture of Super SPARC processor and explain in short. (10 marks)

Write short notes on any four:

6 (a) Data cache organization of pentium. (5 marks)

6 (b) State use of control flags of 8086. (5 marks)

6 (c) Data types supported by SPARC processor. (5 marks)

6 (d) Advantages of memory segmentation in 8086. (5 marks)

6 (e) Mode 1 of 8255 for input operation. (5 marks)