Reg No.:

06000CS305122002 Pages: 2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Fifth Semester B.Tech Degree Regular and Supplementary Examination December 2020

Course Code: CS305

Course Name: MICROPROCESSORS AND MICROCONTROLLERS

Duration: 3 Hours

Max. Marks: 100

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10

11

12

a)
b)
a)

b)
a)

b)

PARTA
Answer all questions, each carries 3 marks.
Differentiate minimum mode and maximum mode operations of 8086.

Draw the architecture of 8088.
Explain the uses of stack in 8086.
What is a Macro? How can we define a macro?
PART 13
Answer any two full questions, each carries 9 marks.
Outline any five minimum mode signals and their functions.

Explain the physical memory organization of 8086.
Write an 8086 assembly language program to count the number of 1’s and 0’s
in a binary string.
List any three assembler directives and write their functions.
Write an 8086 assembly language program to find the number of positive and
negative numbers from a given series of signed numbers.
List the control flags in 8086 and write their functions.
PART ட்‌
Answer all questions, each carries 3 marks.
Write short note on classification of 8086 interrupts.
Explain interrupt service routines.
While interfacing a static memory with 8086, which address range will be
normally assigned to EPROMS and why?
Name the given ICs
(i) 8255 (ii) 8257 (111)8279
PART 0
Answer any two full questions, each carries 9 marks.
Explain the architecture of 8259 with diagram.

Marks
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(3)
(3)
(3)

(5)
(4)
(6)

(3)
(5)

(4)
(3)
(3)

(3)

(3)

(9)