Microprocessor - Dec 2016

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) What is purpose of maximum mode of 8086? Give suitable example.(5 marks) 1(b) Explain flag register of 80386DX.(5 marks) 1(c) Compare Pentium, PentiumII and PentiumIII processors.(5 marks) 2(a) Design 8086 based system for the following requirements:
i) Clock frequency 5 MHz
ii) 512 KB RAM using 32KB×8
iii) 256KB ROM using 32 KB×8(10 marks) 2(b) Draw and explain block diagram of 8253.(10 marks) 3(a) Draw and explain interfacing of math coprocessor (8087) with 8086.(10 marks) 3(b) Explain data segment descriptor with neat diagram.(10 marks) 4(a) Explain, in brief, branch prediction mechanism is on Pentium Processor.(10 marks) 4(b) Explain, with neat diagram, cache memory organization is supported by Pentium processor.(10 marks) 5(a) Explain ,in brief , data formats supported by SuperSpace processor.(10 marks) 5(b) Explain the need of DRAM controller for interfacing DRAM with 8086. Draw and explain interfacing of DRAM controller with 8086.(10 marks)

Write short note on:Q6(a,b,c,d)

6(a) Mixed language programming(5 marks) 6(b) Virtual 86 mode of 80386DX(5 marks) 6(c) 82888 Bus Controller(5 marks) 6(d) Control register of 80386DX(5 marks)