In the field of microprocessor what is DMA?why it is used?

Answers were Sorted based on User's Feedback



In the field of microprocessor what is DMA?why it is used?..

Answer / sreeram

The DMA is used to free the microprocessor from direct control of data transfer between the memory and the Input/Output (I/O) Peripherals by making use of Channels. During this time the processor will continue working on something else.

Is This Answer Correct ?    1 Yes 0 No

In the field of microprocessor what is DMA?why it is used?..

Answer / sanyog&priyanshu

DMA is the abbreviation of direct memory access.It is used
same as FFT in DSP.means it is used for transfering the
data from microprocessor to periferals when there is no
need of interrupt signal.

Is This Answer Correct ?    1 Yes 1 No

In the field of microprocessor what is DMA?why it is used?..

Answer / ritesh saha

DMA stands for Direct Memory Access.
DMA is used to transfer data between system memory and IO
devices.DMA has 2 pins namely HOLD and HLDA.The former holds
an instruction that is to be transferred.After that,an
acknowledge signal is sent which is known as HLDA.After
transfer is completed,DMA removes HOLD signal and the
processor removes HLDA signal and starts from where it let
off.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electronics Communications Interview Questions

What are the advantages of parallel optical interface?

0 Answers  


what are EMI

4 Answers  


Why do ics need small power for their operation?

0 Answers  


What happens to the series current , load current and zener current when the dc input voltage of a zener regulator increases?

0 Answers  


what is semi&full custom difference b/w these two?

0 Answers  






How many mosfet switches are there in dynamic ram?

0 Answers  


What is the advantage of scr?

0 Answers  


What is JKMS FF?

3 Answers  


What is the use of starter and choke in tube

0 Answers   Sukhbir Solar Energy, Wipro,


What is circuit switching?

0 Answers  


describe the timing circuit of 8085 mpu?

0 Answers   Vodafone,


i am preparing for rrb loco pilot exam please send me previous question papers at abhilash.anu88@gmail.com

0 Answers   DMRC, RRB,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)