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If I supply 66 MHz to the Primary Clock input, can I choose between 33 MHz or 66 MHz on the Secondary buses?

April 26, 2017buses clock input MHz primary Secondary supply

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If I supply 66 MHz to the Primary Clock input, can I choose between 33 MHz or 66 MHz on the Secondary buses?

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Yes, depending on the state of signal S_M66EN, when the primary Clock is 66 MHz you can have both, either, or neither secondary bus set to the same speed (S_M66EN = high) or half speed of the primary bus (S_M66EN = low).