IMPORANT QUESTION OF MICROPROCESSOR WITH SOLUTION

                                           QUESTIONS 

1. What are different modes of parallel I/O? 

2. Differentiate between synchronous serial communication and asynchronous serial communication.

3. Explain different addressing modes of 8086.

4. Draw a logic diagram showing generation of memory and I/O read/write control signals in 8085 microprocessor

5. What are the practical implications of asynchronous serial communication?.

6. What is the purpose of Programmable Peripheral Interface 8255A? Explain about its different ports.

7. Differentiate between synchronous and asynchronous serial communication. 

8. Show DTE-DTE and DTE-DCE connection according to RS-232 serial communication standard.

9. Differentiate between vectored and non-vectored interrupts. Where and how 8259 PIC can be used to handle interrupts.

10. What is mean by memory interfacing? Explain the address decoding process in the 8085 microprocessor.

11. Explain the process of double handshake I/O.

12. Explain how pipelining is achieved in 8086 microprocessor.

13. Describe the working mechanism of DMA. Draw the internal architecture of the 8237 DMAC along with a timing diagram illustrating the process of DMA transfers.

14. Differentiate between interrupt based I/O and DMA based I/O. Explain based DMA operation in brief.

15. What do you mean by Isolated I/O? Explain basic DMA operation in brief.

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