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Re: [OCLUG-Tech] SD card

On Jan 21, 2012, at 11:19, Bart Trojanowski wrote:

> Flash needs bad-block remapping, block refresh, and write levelling. In the
> case of a USB attached flash storage these functions clearly get done in
> the USB device... in some sort of "processor" or ASIC.

There is definitely intelligence on the SD card controller. It needs to manage the 2 partitions and the crypto for the protected partition if nothing else.

> I always thought that MMC/SD devices worked the same.

MMC cards, from I can remember, doesn't have the protected partition.



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