2013年7月1日 星期一

Embedded computer challenge on memory multimedia

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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