ppt

DMA and DMA controller

  • 2013-09-22
  • 225.5KB
  • Points it Requires : 2

Concept of DMA (Direct Memory Access) DMA method completes data transfer between M and I/O without processor intervention. During DMA, the system bus is controlled (driven) by other master modules. The master module controlling the bus needs to provide the system address and control signals. The DMA controller cooperates with the processor to realize the DMA function of the system. DMA system composition and working process DMA system composition

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