| Other 86 Family Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| Give two ways of converting a two input NAND gate to an
inverter ? | | 2 |
| 7. What are tri-state devices and why they are
essential in a bus oriented system? | Wipro | 2 |
| Which line will be activated when an output device require
attention from CPU? | | 1 |
| Give the truth table for a Half Adder, Give a gate level
implementation of the same? | Wipro | 1 |
| How do you detect a sequence of "1101" arriving serially
from a signal line? | | 2 |
| Design any FSM in VHDL or Verilog? | | 1 |
| What are the functions of RIM, SIM, IN? | | 2 |
| What is the difference between MOV and MVI? | | 5 |
| In 8085 microprocessor READY signal does.which of the
following is incorrect statements
[a]It is input to the microprocessor
[b] It sequences the instructions
| Wipro | 1 |
| What is the difference detween ISR & function call | Bosch | 7 |
| What are the different addressing modes in 8085? | Syntel | 4 |
| load a
mul a
store t1
load b
mul b
store t2
mul t2
add t1
then the content in accumulator is
| Wipro | 1 |
| Design a Transmission Gate based XOR. Now, how do you
convert it to XNOR? | | 1 |
| What are the different Adder circuits you studied? | | 3 |
| Why is data bus bi-directional? | Wipro | 1 |
| What is ALE? Explain the functions of ALE in 8085. | | 3 |
| What do you mean by wait state? What is its need? | | 2 |
| What are the different flags in 8085? | TCS | 3 |
| What are tri-state devices and why they are essential in a
bus oriented system? | Keane-India-Ltd | 1 |
| What is the immediate addressing mode? | | 2 |
| |
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