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DP83TD510E: max. MDC clock frequency = 1.75MHz ??

Walter Ahrend
Intellectual 1120 points
Part Number: DP83TD510E

Tool/software:

The customer asks if max. 1.75MHz MDC frequency is really the upper limit, since the usual linux drivers will use 2.5MHz clock for MDIO-Interface communication. It looks like this value is also mentioned in the standards...

Why do we have this unusual limitation?

Best Regards,

Walter