EE 6502 Microprocessor and
Microcontroller,
Third
year, Department of Electrical and Electronics Engineering, Model Exam
Questions.
PART
A(10*2=20)
1. What
are different machine cycles in 8085.
2. What is an interrupt.
3. What are the instructions used for data
transfer.
4. What are the types of instruction available in
8085.
5. Compare microprocessor and microcontroller.
6.Give the alternate function for the port pins
of port 3.
7. Define opcode and operands.
8. Draw the interfacing diagram of 8086 with
keyboard display.
9. List the addressing modes of 8051.
10. Explain DJNZ instruction of intel 8051
microcontroller.
PART B (16*5=80)
11. a) Explain the hardware architecture of 8085
with neat diagram.(16)
(or)
11. b. i)
Draw the pin configuration of8085 microprocessor.(06)
ii) Explain all machine cycle used in 8085.(10)
12. a. i) Write the program about assembly
language format.(16)
(or)
b.i) Write the program about loop structure with
counting and indexing.(08)
ii) Explain the subroutine instruction with example.(08)
13.a.i) Explain the function building block of
process of 8051 microcontroller.(08)
ii) Explain the memory organization of 8051 microcontroller. (08)
(or)
b.i) Draw the timing diagram of 8051
microcontroller.(08)
ii) Discuss the interrupt system of 8051 microcontroller. (08)
14. a) Describe the block diagram of 8259
programmable interrupt controller and its priority
Modes. (16)
(or)
b.)Explain and details about analog to digital
convert interfacing.(16)
15. a )Explain with program to rotate the stepper
motor in both clockwise and anticlockwise
direction using 8051 microcontroller. (16)
(or)
b. i) How
8051 is used in washing machine control.(08)
0 Comments