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The 8085 Microprocessor: Architecture, Programming and Interfacing by Umashankar B.S., Udaya Kumar K.

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24

Intel 8257—Programmable DMA Controller

images Concept of direct memory access (DMA)

images Need for DMA data transfer

images Description of 8257 DMA controller chip

images Condition when processor is the master and 8257 is in slave mode

images Condition when processor is in the ...

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