Microprocessor Lab Internal Viva Questions.-2016

1.     Define Microprocessor

2.     Explain the 2-key and N-Key rollover feature of keyboard design

3.     Draw the control word of 8255:BSR AND I/O Mode

4.     What is stack.What is the use of stack in subroutine.

5.     Define Microcontrollers

6.     Define Machine cycle,Instruction cycle and T-state

7.     Define Memory mapped I/O and peripheral mapped I/O

8.     Define DMA.

9.     Difference between Microprocessor and Microcontrollers

10.  Define Addressing Mode. Write the Addressing Modes of 8085/8051

11.  write the format of status register and mode set register in 8257

12.  .List the various registers in 8085/8051?

13.  .what are SIM and RIM instructions in 8085MP

14.  .What is keybounce?Explain different key bouncing techniques

15.  .Define PIC.How an interrupt can be handled using PIC

16.  Define Flag.Draw flag register of 8085/8051

17.  Show the formats of modeword, command word and status word of 8251

18.  List out the mode in keyboard and display controller 8279 interface

     19.  List and explain various modes of 8254 interval timer

     20 Define Interrupts.How interrupts are handled in 8085/8051

      21 Classify the interrupts of 8085/8051

     22.Define Addressing Mode. Write the Addressing Modes of 8085/8086/8051

23    what are SIM and RIM instructions in 8085MP