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Categories >> Software >> Embedded Systems >> 86 Family
 
 


 

 
 86 Family interview questions  86 Family Interview Questions (53)
 VLSI interview questions  VLSI Interview Questions (200)
 DSP interview questions  DSP Interview Questions (9)
 Embedded Systems AllOther interview questions  Embedded Systems AllOther Interview Questions (24)
Question
Why is data bus bi-directional?
 Question Submitted By :: 86-Family
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
data bus is bi-directional bcoz
same bus is used for data transmission from microprocessor
to memory location or input/output device and vice versa.
thats y data bus is bi-directional
 
Is This Answer Correct ?    92 Yes 10 No
Deepak Kumar Singh
 
Answer
# 2
it is bidirectional since databus carry tthe information
both from memory to i/o device port and vice vera therfore
perform aa bidirectional operation of both input and
output..
 
Is This Answer Correct ?    21 Yes 1 No
Arash
 
 
 
Answer
# 3
Data bus will obviously be bi-directional, because whenever
we provide some input data for processing by the
microprocessor or microcontroller and any device, we are in
look out for output result which is again a data.
 
Is This Answer Correct ?    10 Yes 2 No
Anandkumar M K
 
Answer
# 4
data bus is bi-directional bcoz
same bus is used for data transmission from microprocessor
to memory location or input/output device and vice versa.
thats y data bus is bi-directional
 
Is This Answer Correct ?    6 Yes 1 No
Bb
 
Answer
# 5
The bidirectional data bus, sometimes called the memory bus, handles the transfer of all data and instructions between functional areas of the computer. The bidirectional data bus can only transmit in one direction at a time.
Basically, the data bus is used to transfer instructions from memory to the CPU for execution. It carries data (operands) "to and from" the CPU and memory as required by instruction translation. The data bus is also used to transfer data between memory and the I/O section during input/output operations.
 
Is This Answer Correct ?    7 Yes 2 No
Hashir
 
Answer
# 6
These are bidirectional tristate buffered time division
multiplexed data lines.add o/p
 
Is This Answer Correct ?    10 Yes 29 No
Sunil
 

 
 
 
Other 86 Family Interview Questions
 
  Question Asked @ Answers
 
What is the function of accumulator? Sandvik 16
Suppose you have a combinational circuit between two registers driven by a clock. What will you do if the delay of the combinational circuit is greater than your clock signal? Wipro 3
What are tri-state devices and why they are essential in a bus oriented system? Keane-India-Ltd 1
Design a divide-by-3 sequential circuit with 50% duty circle?   1
What are the different Adder circuits you studied?   6
Give two ways of converting a two input NAND gate to an inverter ?   2
What are the functions of RIM, SIM, IN? Wipro 9
In a processor these are 120 instructions . Bits needed to impliment this instructions [a] 6 [b] 7 [c] 10 [d] none Wipro 2
load a mul a store t1 load b mul b store t2 mul t2 add t1 then the content in accumulator is Wipro 2
What is ALE? Explain the functions of ALE in 8085.   12
Which type of architecture 8085 has? Sasken 6
Return address will be returned by function to Wipro 1
 
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