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How is the refresh rate calculated?(a) by refresh time(b) by the refresh cycle(c) by refresh cycle and refresh time(d) refresh frequency and refresh cycleI had been asked this question by my college director while I was bunking the class.My doubt stems from DRAM Refreshing Techniques in chapter Memory Systems of Embedded Systems

Answer»

Correct option is (C) by refresh cycle and refresh time

The EXPLANATION is: The time required for refreshing the whole chip is known as refresh time. The number of access NEEDED to complete refresh is CALLED as the number of cycles. The number of cycles divided by the refresh time GIVES the refresh rate.



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