Consider a device which is using cycle stealing mode of DMA to transfer data to memory. The device has a transfer rate of 20KBPS. During DMA transfer 10% of the time, CPU is blocked due to DMA. Whenever 8 bytes data is ready from I/O then it is transferred to memory in one memory cycle time. Which of the following gives the correct value of memory cycle time?
30 microseconds
10 microseconds
40 microseconds
20 microseconds
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