DMA CONTROLLER
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DMA is an approach of performing data transfers in bulk between memory and the external device without the intervention of the processor.
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The DMA controller acts as a processor for DMA transfers and overlooks the entire process.
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The DMA controller has 3 registers.
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All of the above
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Detailed explanation-1: -Answer. All of the statements about DMA (Direct Memory Access) are true: DMA is an approach of performing data transfers in bulk between memory and the external device without the intervention of the processor.
Detailed explanation-2: -Direct memory access (DMA) is a method that allows an input/output (I/O) device to send or receive data directly to or from the main memory, bypassing the CPU to speed up memory operations. The process is managed by a chip known as a DMA controller (DMAC).
Detailed explanation-3: -DMA avoids using the CPU thus allowing the CPU to attend another job. It increases the speed of the data transfer between the memory and the I/O devices.
Detailed explanation-4: -The Advantages of Using a DMA Controller in Your System The CPU can be free to perform other tasks while the DMA-controller takes care of data transfers between devices and memory. This results in faster data transfer rates and increased overall system performance.
Detailed explanation-5: -Direct memory access (DMA) is the process of transferring data without the involvement of the processor itself. It is often used for transferring data to/from input/output devices.