[net.micro] 16032 MMU comment

Chepponis@cmu-cs-c.arpa (02/28/83)

From:  Mike Chepponis <Chepponis@cmu-cs-c.arpa>

If 97% of page table accesses take 100ns and 3% take 3us, then the AVERAGE
page table access takes .97*.1us + .03*3us = 187ns.  This is still speedy
virtual address to physical address translation for a micro.  By comparison
the Z8010 MMU at 10MHz takes 250ns to do the translation, and does not have
the nice features that the 16032 MMU has (like reference bits or cache).

	-Mike Chepponis
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