DMA Channel Function and Operation

Data Recovery
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Why DMA Channels Were Invented for Data Transfer

Third-Party and First-Party DMA (Bus Mastering)

Limitations of Standard DMA

DMA Controllers

DMA Channels and the System Bus

DMA Request (DRQ) and DMA Acknowledgment (DACK)

DMA, Multiple Devices and Conflicts

Summary of DMA Channels and Their Typical Uses


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