Lokesh Madan
Department of Computer Science, Dronacharya College of Engineering, Gurgaon, India
Kislay Anand
Department of Computer Science, Dronacharya College of Engineering, Gurgaon, India
Bharat Bhushan
Department of Computer Science, Dronacharya College of Engineering, Gurgaon, India
Download PDFDirect Memory Access (DMA) is a feature in all modern computers that allow devices to be able to move large blocks of data without any interaction with the processor. This can be useful, as you may have already seen from the floppy programming chapter. While the device transfers the block of data, the processor is free to continue running the software without worry about the data being transferred into memory, or to another device. The basic idea is that we can schedule the DMA device to perform the task on its own. Different buses and architecture designs have different methods of performing direct memory access.
Keywords: Processor register,cyclestealing,busmastering,countregisters,interleaved,c ache invalidation, schematics, gigabit Ethernet.
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