eMMC and not a NAND

Discussion in '3DS - Flashcards & Custom Firmwares' started by greyneon, Jan 17, 2014.

  1. greyneon
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    greyneon Advanced Member

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    Might just be me but the 3DS have a eMMC and not a NAND so why are people reffering to it as a NAND? It is just like the so calles JTAG hack on xbox 360 its an SMC hack via the JTAG port. Finding it binda annoying... Anybody else?
     
  2. bkifft

    bkifft avowed Cuthwaldian

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    because NAND is the technology used by said eMMC chip to store the information, just like most SD cards (which are kinda lika a sibling of eMMC)
     
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  3. justinkb

    justinkb GBAtemp Advanced Fan

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  4. Cyberdrive

    Cyberdrive GBAtemp Regular

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  5. greyneon
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    greyneon Advanced Member

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    Ahh i see. Thank you for clearing that up :-)


    Edit:

    Could we solder on a SD card to store the data while the 3ds still sees the NAND? Or even replace NAND with the SD?
     
  6. Abcdfv

    Abcdfv What comes around goes around.

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    Isn't the eMMC the controller, and NAND the type of memory being controlled?
     
  7. Cyberdrive

    Cyberdrive GBAtemp Regular

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    Wiki links above tell me that eMMC = flash memory + controller in one BGA package, and NAND is the type of flash memory.
    Speaking of replacing NAND with SD - who knows, hardware NAND dumping/flashing is done via SD/MMC interface. But even if it's theoretically doable, there's still firmware encryption to be figured out.
     
  8. greyneon
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    greyneon Advanced Member

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    But hardware wise it's doable? For example to simplify up and downgrade via a SD card? Maybe even use sparkfuns SD sniffer as a man-in-the-middle?
     
  9. justinkb

    justinkb GBAtemp Advanced Fan

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    Technically, if you can produce an alternate controller which is interfaced with in the exact same way as the eMMc, you could even hook it up to a punch card machine type storage device. It's a basic block box principle, the eMMC controller doesn't (or shouldn't) expose any of the internals of the actual storage package.

    Whether or not anyone is both skilled and insane enough to pursue any effort like this is debatable, of course.
     
  10. greyneon
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    greyneon Advanced Member

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    hmm... interesting actually...