MICROPROCESSOR PAPER 3

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MICROPROCESSOR AND ITS APPLICATIONS (B.Tech 5th Semester,2121)
NOTE:- This paper consist of Three Sections. Section A is compulsory. Do any Four questions from
Section B and any two questions from Section C

Section-A Marks : 20

1(a) Differentiate between the following:
(i) Instruction, M/c and clock cycles.
(ii) Assembler and compiler
(iii) Object andSource Programs
(iv) op--c-ode and operand
(v) ROM and RAM
(vi) Hardware and Software interrupts
(b) Explain the functions of ALE and IO/M signals of the 8085 microprocessor.
(c) What is stack and explain how it operates ?
(d) What is the difference between 8085 JMP and call instructions ?
(e) Explain the use of subroutines. What should be the salient features of a good subroutine ?

Section-B Marks:5 Each

2. Draw the block diagram showing the architecture of 8085 microprocessor. Explain the function of its organs.
3. what is the need of knowing so many addressing modes of 8086 ? Explain the various modes in detail. Discuss their applications.
4. Explain the architecture of Motrola 68000 microprocessor.
5. Explain the architecture of a keyboard with an 8086 microprocessor.
6. (a) State the advantages of segmention(memory) in 8086 based system.
(b) With the help of examples, illustrate the use and the meaning of the following instructions:
AAA, LAT, WAIT

Section-C Marks : 10 Each

7. Discuss the comparision of the important characteristics of intel 8 bit, 16 bit and 32 bit microprocessors.
8. For an 8086, write an assembly language program:
(a) To find the largest of 12 unsigned bytes.
(b) To compare two strings stored in memory locations starting from STR1 and STR2 each 100 bytes long. The program should branch to an ERROR subroutine in case of mismatch.
9. Write short notes on any two of the following:
(a) Interrupt system of 8085
(b) I/O data transfer techniques
(c) Parallel v/s serial transmission
(d) 8089 Processor