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Quote:
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Originally posted by nomar05@Feb 11 2003, 08:24 PM
Q. What is the difference between SD cards and MMC cards? They look like they are the same!
A. You are correct. They are the same.
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Actually SD slot is backward compatible with MMC, but:
1) SD is actually 0.7 mm thicker so that ppl can't accidently stick it into an MMC slot, while allowing MMC to be used in an SD slot
2) MMC's speed is lower than SD
3) SD has a little mechanical 'write-protection' switch
As with SD/IO -- Ax does not currently support it, but our Xscale processor supposedly has the feature built-in. Whether Dell 'can' or 'will' implement it in future upgrades, anyone's guess is as good as mine =)
Cheers.