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Some of the earlier XC68060 processors marked LC/EC actually have FPUs & MMUs in them but the FPU/MMU are not guaranteed to work at the rated speed (or at all).
It is only later that the 68060 got dedicated LC/EC parts where the FPU/MMU were either disabled or not present.
My experience with early EC/LC chips is there must have been more demand for LC/EC parts than there were failures and so fully functional chips were sold as LC/EC. (Because I've seen so many say theirs is fully functional)
There is no way in SW to distinguish these parts from FULL 060s which can be problematical if you have one where the MMU/FPU doesn't work
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