Microprocessors And Microcontrollers Important Questions and Units MPMC

10 May 2015    05:13 pm

1 SUBJECT NAME : Microprocessors & microcontrollers

Subject code : ec2304

Type : 8/10/16mark question bank / Anand A edition 2014

Department/ year : electronics and communication / 3 year 5 th semester

UNIT-1 1. Draw the basic minimum mode system configuration using the 8086 without memory or I/O interface, and list the functions performed by each chip? (8)

2. Draw the basic maximum and minimum mode system configuration using the 8086 without memory or I/O interface. And list the functions performed by each chip? (8)

3. Explain the minimum maximum mode operations of 8086 with neat diagram (16)

4. Explain the 8086 architecture with neat sketch? (16)

5. Draw the pin diagram of 8086 CPU with its control signals?(8) 2

6. Explain how an interrupt respond by 8086 CPU? (8)

7. Explain memory organization in 8086? (8)

8. Explain the function of storing and retrieving of 16bit at an odd and even addressed bank with necessary diagram? (16)

9. Explain the interrupts of 8086 in detail? (8)

10. Explain the memory addressing in 8086? (8)

11. Discuss the different registers in 8086 processor? (8)

12. Discuss the 8086 interrupt types? (8)

UNIT-2

1. Name and explain about the different addressing modes used in the instruction set of 8086 with suitable example? (16)

2. Explain the 8086 bit manipulation instruction with an example for each? (16)

3. Briefly explain the assembler directives? (8)

 4. Explain the relative addressing mode and the implied addressing mode with its syntax use an example? (8)

5. Explain the data transfer instruction with an example for each? (8)

6. Explain the 8086 logical instruction with an example for each? (8)

7. Explain the miscellaneous instructions with an example for each? (16)

8. Write 8086 assembly language program to add two 8 bit number? (8)

9. Discuss about arithmetic and program control instruction of 8086? (8)

10. Write an ALP to multiply and divide two 16 bit number? (8)

UNIT-3

1. With neat block diagram explain 8255 PPI? (16)

2. Discuss in detail about the operation of timer (8253) along with its various modes? (16)

3. Write sort notes on sample and hold circuit? (8) 4

4. Explain the operating modes of 8255 PPI? (10)

5. Explain the 8279 keyboard and display controller with neat sketch? (16)

6. What are then steps involved in interfacing an ADC with 8086? (4)

7. Interface CRT with 8086 and explain?

8. Interface printer with 8086 and explain?

UNIT-4

1. Explain the working of the 8051 microcontroller give a neat sketch? (16)

2. Explain the logical instruction in 8051with an example for each? (8)

3. Explain the rotate and swap instruction with an example for each? (8)

4. Explain in detail the serial communication register of the 8051? (10)

5. Describe the two external hardware interrupts of 8051? 5

6. Explain hoe to interface ROM with the 8051? (8)

7. Describe various modes of the 8051 timers? (8)

8. Explain the use of port 3 of 8051 for interrupt signals? (6)

9. Explain how interrupts are handled in 8051? (6)

10. Explain hoe internal and external memory handled by 8051? (8)

11. Explain four different timer modes in 8051? (8)

12. Discuss in detail the 8051 instruction set and addressing modes? (16)

13. Describe the external memory and its interfacing with 8051? (8)

UNIT-5

1. Describe the operation of an 8051 based traffic light control using suitable diagrams, flow chart and assembly language program.

2. Explain the design of washing machine control using 8051?

3. Interface a DC motor with the 8051 and explain? 6

4. Draw the circuit and waveform of a four phase stepper motor interface and explain its operation with the sequence table?

5. Sketch the interface of a RTC to the 8051 microcontroller. Write an 8051 assembly program segment to read and write real time into the RTC.?