Tuesday, December 29, 2020

8085 Microprocessor sample question set Gaonkar Chapter 10

 Gaonkar Chapter  10


1. Packed BCD and unpacked BCD

2. BCD to binary,binary to BCD

3. Binary to ASCII and ASCII to bianry.

4. BCD addition and BCD subraction.

5. DAA simulation.

8085 Microprocessor sample question set Gaonkar Chapter 9

 Gaonkar Chapter  9


1. What is stack?

2. What is subroutine?

3. How PUSH and POP instructions are executed?show the steps.

4. Timing diagram of PUSH, POP.

5. What is subroutine?

6. How CALL and RET instructions are executed?show the steps.

7. Timing diagram of CALL, RET.

8. How parameters are passed in subroutine?

9. Restart insrucions.

10. Conditional call.

11. Nesting of subroutine.

12. comparison of instruction  CALL,PUSH,POP,RET.


8085 Microprocessor sample question set Gaonkar Chapter 8

 Gaonkar Chapter  8


1. what is time delay?

2. Delay using single register

3. Delay usng register pair

4. Delay using loop within loop

5. Design a 1 second delay

8085 Microprocessor sample question set Gaonkar Chapter 7

 Gaonkar Chapter  7


1. Continuous loop, Conditional loop

2. Counter and indexing

3. 16 bit operaion of MP

4. Block transfer

8085 Microprocessor sample question set Gaonkar Chapter 6

 Gaonkar Chapter  6


1. NOP operation uses

2. Addressing mode of instruction

3. Conditional jump, Unconditional jump

4. Static debugging, Dynamic debugging


8085 Microprocessor sample question set Gaonkar Chapter 5

 Gaonkar Chapter  5


1. IN and OUT instruction timing diagaram

2. Chip selection

8085 Microprocessor sample question set Gaonkar Chapter 4

 Gaonkar Chapter  4


1. Multiplexed Address Bus

2. Use of ALE

3. Control and status signal

4. How clock is generated in MP?

5. Demultiplexing the AD bus diagram

6. Timing diagram of differen machine cycle

7. IR regesiter function

8. Register arrays

9. Memory interfacing

10. Absolute decoding, Partial decoding


8085 Microprocessor sample question set Gaonkar Chapter 3

 Gaonkar Chapter  3


1. Instruction cycle

2. Fetch,decode,execute cycle

3. Machine cycle

4. T-states

5. Data bus, Address Bus, Control Bus

6. Unidirectional bus, Bidirectional bus

7. Memory map and address

8. Memory mapped i/o,i/o mapped i/o or isolated i/o ( comparison)

9. Buffer, tristate buffer, bidirectional buffer

10. Priority encoder


8085 Microprocessor sample question set Gaonkar Chapter 2

 Gaonkar Chapter  2


1. Different registers

2. Flag registers

3. PC and SP

4. Word size of microprocessor

5. Opcode format

6. One byte ,two byte, three byte instruction

7. How does microprocessor differentiate data and instruction code?


8085 Microprocessor sample question set Gaonkar Chapter 1

 8085 Microprocessor sample question set

Gaonkar Chapter 1


1. How does the microprocessor works?

2. Instruction set.

3. Microcontroller defination,difference with microprocessor.

4. Monitor program