Maurice Tutor

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Category > Computer Science Posted 13 Jul 2017 My Price 4.00

actual data transfer rate

Examination of the timing diagram of the 8237A indicates that once a block transfer begins, it takes three bus clock cycles per DMA cycle. During the DMA cycle, the 8237A transfers one byte of information between memory and I/O device.

a. Suppose we clock the 8237A at a rate of 5 MHz. How long does it take to transfer one byte?

b. What would be the maximum attainable data transfer rate?

c. Assume that the memory is not fast enough and we have to insert two wait states per DMA cycle. What will be the actual data transfer rate?

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Maurice Tutor
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Status NEW Posted 13 Jul 2017 04:07 PM My Price 4.00

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