INTRODUCTION TO MICROPEOCESSOR
MICRO PROCESSOR AND MICRO CONTROLLER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What does happen to processor and I/O device interaction, if DMA controller is used?
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More interation
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conflict of Access increases
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minimum interaction
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Doesnot interact at all
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Explanation:
Detailed explanation-1: -Can a single DMA controller perform operations on two different disks simultaneously? Explanation: The DMA controller can perform operations on two different disks if the appropriate details are known.
Detailed explanation-2: -To reduce the CPU load, the DMA can be used to store the ADC data to memory leaving the CPU to do the filtering. This leads to the concept of double buffering, where the CPU can process the data in one buffer while the DMA fills another buffer.
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