Mount Zion College of Engineering &
To Make Man A n I S O 9 0 0 1 : 2 0 0 8 C e r ti fi e d I n s ti t u ti o n
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Encl. 35 a. : QUESTION BANK
EC1301 MICROPROCESSOR AND MICROCONTROLLER
UNIT II PERIPHERALS INTERFACING OF 8085
TB 1 Gaonkar, R. S., “Microprocessor Architecture, Programming and Application with 8085”, 4th Edition, Prentice Hall, 2000.
TB 2 Uffenbeck, J., “The 80 × 86 Families, Design, Programming and Interfacing”, 3rd Edition, Pearson Education, 2002.
TB 3 Mohammed Ali Mazidi and Janice Gillispie Mazidi, “The 8051 Microcontroller and Embedded Systems”, Pearson Education,
REF 1 2003.
A.P.Godse,& D.A.Godse,”Microprocessors and its applications”, Technical Publications,Pune, second edition, 2006.
Student
Ans -
Textbook Referre Mar
Qs. No. Questions Univ Qs. Page
No. d Page k
Nos.
No.
TLP No.1 Interfacing serial I/O (8251)
1. What is the need for interfacing? NOV 2011 TB 1 140 2
2. What is the difference between synchronous and NOV 2012 REF 1 6.3 2
asynchronous serial communication?
3. Draw the block diagram of 8251 and explain its operation MAY2012, REF 1 6.9
NOV 2012 16
with an example.
4. Discuss the features of 8251 USART. NOV 2011 REF 1 6.6 6
5. Explain the mode format and command word format of MAY2012, REF 1 6.11
NOV 2012 8
8251 USART.
TLP No.2 Parallel I/O (8255)
6. Give the procedure required to communicate with NOV 2011 TB 1 460 2
peripherals through 8255A.
7. Write a control word to set 8255 port A as input and port NOV 2011 TB 1 472 2
B as output in mode 1 configuration.
8. Write control word format of 8255. NOV 2012 TB 1 464 2
9. List the operating modes of 8255A PPI. NOV 2012 TB 1 463 2
10. Draw the control word format for 8255A BSR mode. MAY 2012 TB 1 466 2
11. With neat block diagram , explain the function of 8255 PPI. NOV 2011 TB 1 462 16
12. Write the interfacing circuit, write a program for stepper NOV 2011 TB 1 472
16
for stepper motor control.
13. Explain the mode I input and output and output NOV 2011 TB 1 472
16
configuration of 8255 Programmable Peripheral interface.
TLP No.3 Keyboard and display controller (8279)
14. What is keyboard de-bouncing? NOV2011, REF 1 8.2 2
NOV 2012
15. List the major components of 8279 logic block diagram MAY2012, TB 1 452
NOV 2011 8
and explain their functions. NOV 2012
16. Explain the following related to keyboard display NOV 2012 REF 1 8.21 4
controller two key lock out.
17. Explain the following related to keyboard display NOV 2012 REF 1 8.21
4
controller N-Key roll over.
18. Explain the following related to keyboard display NOV 2012 REF 1 8.27
4
controller FIFO.
19. Explain the following related to keyboard display NOV 2012 REF 1 8.21
4
controller Display RAM.
20. Draw the block diagram of 8279 keyboard/Display APR 2010 REF 1 8.34
controller and explain how to interface the Hex Key pad 16
and 7-segment LEDs using 8279.
TLP No.4 ADC/DAC interfacing
21. An 8-bit ADC has a reference voltage of 5v.what is the NOV 2011 REF 1 9.10 2
digital output when the input to the ADC is 2.5v?
22. Define D/A conversion. NOV 2011 REF 1 9.1 2
23. Draw the block diagram of digital interface board. NOV 2011 REF 1 9.5 2
24. What is the necessary of Analog Ground in ADC? NOV 2012 REF 1 9.4 2
25. List any four Analog to Digital converters. MAY 2012 REF 1 9.12 2
26. Explain the interfacing of an 8-bit A/D converter with the NOV 2011 REF 1 9.11
8085 MPU using memory-mapped I/O and the interrupt 16
RST 6.5.
27. Draw the schematic diagram and explain MP based NOV 2011 REF 1 9.18
8
temperature controller in fuel tank.
28. Design an interfacing circuit to read data from an DAC NOV 2011 REF 1 9.10
10
using 8255 in memory mapped I/O.
29. Explain how the successive approximation type ADC MAY 2012 REF 1 9.10 8
Pilivalam P.O, Pudukkottai Dt., Tamil Nadu. Pin - 622 507, Fax: 04333 – 277125, Ph: 04322 - 320801, 320802, Website: www.mzcet.in, Email: info@mzcet.in
Page 1 of 2
Mount Zion College of Engineering &
To Make Man A n I S O 9 0 0 1 : 2 0 0 8 C e r ti fi e d I n s ti t u ti o n
T e cWhh onl eo! ! l o g y
Encl. 35 a. : QUESTION BANK
EC1301 MICROPROCESSOR AND MICROCONTROLLER
UNIT II PERIPHERALS INTERFACING OF 8085
converts the analog signal into its equivalent 8-bit digital
value with an example.
TLP No.5 Inter-integrated circuits interfacing (I2C Standard)
30. Mention the advantages of I²C BUS. NOV 2011 REF 1 10.1 2
8
31. Mention the features of I²C BUS. - REF 1 10.9
TLP No.6 Bus – RS232C
32. What is max 232? NOV 2012 REF 1 10.1 2
33. Explain in detail how RS 232C is used for data NOV 2011 REF 1 10.1
8
communication.
TLP No.7 RS485
34. Discuss in detail about RS 485. NOV 2011 REF 1 10.7 8
TLP No.8 GPIB
35. Discuss in detail about GPIB. - REF 1 10.1
8
9
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Pilivalam P.O, Pudukkottai Dt., Tamil Nadu. Pin - 622 507, Fax: 04333 – 277125, Ph: 04322 - 320801, 320802, Website: www.mzcet.in, Email: info@mzcet.in
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