The primary advantage to the user is that
an embedded computer's multimedia card’s memory is fully managed and independent from the
NAND technology inside. As NAND flash geometries shrink, the technology becomes
more complex to manage in terms of dealing with increased Error Correction Code
(ECC) requirements, wear leveling, and bad block management. NAND flash is also
variable in terms of road-map changes that require updates to software and
perhaps even at the controller level. Embedded multimedia card memory is
backward compatible and has a standard interface so that changes to the NAND
are transparent to the application. This means that embedded computer don’t have to
bother with dedicated software to manage the complexity of NAND flash. Embedded
multimedia card memory uses standard interfaces, and functions are geared to
match JEDEC specifications.
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