Q2,p3,j15. Consider a 32 bit microprocessor with a 16 bit external data bus,driven by 8 Mhz input clock.Assume that microprocessor has a bus cycle whose minimum duration equals to four input clock cycle. What is the maximum data transfer rate for this micro processor.

Options A) 8x10 6bytes /sec B) 4x10 6 bytes/sec   c) 16x 10 6 bytes/sec

Answer. B
Explanation.
Minimum bus cycle duration = 4 clock cycle.
maximum bus cycle rate= 8 MHZ/4= 2M/s where 1 MHZ= 1000000/sec.
maximum data transferred per  bus cycle rate= 2bytes.
data transferred rate per second = data transferred  per bus cycle* bus cycle rate.= 2bytes*2M/s

4* 106 bytes/sec