I am using a QuadSPI interface in MPC5606S
Can someone help me how to arrive at the maximum and minimum clock freq of SPI and IO lines?
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Looks to me like Figure 49 suggests its determined by minimum values of Tf and Tr. So the absolute minimum clock period determined by that is 0.4 + 0.3 = 0.7ns, or about 1.4 Gigabits per second. That being said, the "typical" values in Table 65 indicate a more conservative bound would be 0.5 + 0.6 = 1.1ns, orabout 900 Megabits per second.