Which of the following requires its own local memory and program?a)DMA controllerb)DMA addressc)DMA CPUd)DMA peripheralCorrect answer is option 'C'. Can you explain this answer? - EduRev Computer Science Engineering (CSE) Question

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Which of the following requires its own local memory and program?

a)
DMA controller
b)
DMA address
c)
DMA CPU
d)
DMA peripheral

Correct answer is option 'C'. Can you explain this answer?

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Which of the following requires its own local memory and program?a)DMA...

Explanation: The DMA CPU has its own address local memory and program so that it will not harm main memory bus and it is completely isolated.

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On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.Initialize the address registerInitialize the count to 500LOOP: Load a byte from deviceStore in memory at address given by address registerIncrement the address registerDecrement the countIf count != 0 go to LOOPAssume that each statement in this program is equivalent to a machine instruction which takes one clock cycle to execute if it is a non-load/store instruction. The load-store instructions take two clock cycles to execute.The designer of the system also has an alternate approach of using the DMA controller to implement the same transfer. The DMA controller requires 20 clock cycles for initialization and other overheads. Each DMA transfer cycle takes two clock cycles to transfer one byte of data from the device to the memory.Q. What is the approximate speedup when the DMA controller based design is used in place of the interrupt driven program based input-output?

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Which of the following provides an efficient method for transferring data from a peripheral to memory?

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Consider the class of recursive and iterative programs. Which of the following is false?

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. Which of the following have low-level buffer filling?

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Which signal allows the DMA controller to select the peripheral?

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Which of the following requires its own local memory and program?a)DMA controllerb)DMA addressc)DMA CPUd)DMA peripheralCorrect answer is option 'C'. Can you explain this answer?

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