Direct Memory Access (DMA) Seminar and PPT with pdf report: The transfer of data between a fast storage device like charismatic disk and memory is often limited by the speed of the CPU.

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DMA Seminar PPT with pdf report

 Different Modes of DMA operation

    There are three different modes of DMA operations:

  • Continuous DMA
  • Cycle stealing
  • interleaved DMA


  • Bus-Master DMA Devices
  • System DMA Devices


  • Minimizing response time decrease the amount of temporary storage (memory) required on an I/O device.


  • Cost of DMA hardware
  • Data has to be stored in continuous locations in memory.
  • All error conditions have to be read and analyzed by CPU.
  • These limitations have lead to the next mode of the INPUT/OUTPUT i.e. INPUT/OUTPUT channels.

 Content of the Seminar and pdf report for DMA

  • Introduction
  • History
  • What is DMA?
  • What is actually DMA?
  • Application
  • DMA Channels
  • Different Modes of DMA operation\
  • DMA Operational Modes and Settings
  • Types
  • DMA Signals
  • Advantages
  • Disadvantages
  • Conclusion
  • References

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