Direct memory access is used for high-speed I/O devices in order to avoid increasing the CPUs execution
Question:
a. How does the CPU interface with the device to coordinate the transfer?
b. How does the CPU know when the memory operations are complete?
c. The CPU is allowed to execute other programs while the DMA controller is transferring data. Does this process interfere with the execution of the user programs? If so, describe what forms of interference are caused.
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The CPU can initiate a DMA operation by writing values into spec...View the full answer
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Related Book For 
Value at Risk The New Benchmark for Managing Financial Risk
ISBN: 978-0071464956
3rd edition
Authors: Philippe Jorion
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