EMMC Registers

From 3dbrew
Revision as of 22:49, 19 March 2015 by Plutooo (talk | contribs)
Jump to navigation Jump to search


Old3DS Name Address Width Used by
Yes EMMC_CMD 0x10006000 2
Yes ? 0x10006002 2
Yes EMMC_CMDARG0 0x10006004 2
Yes EMMC_CMDARG1 0x10006006 2
Yes EMMC_STOP 0x10006008 2
Yes EMMC_BLKCOUNT 0x1000600a 2
Yes EMMC_RESP0-7 0x1000600c 2*8
Yes EMMC_STATUS0 0x1000601c 2
Yes EMMC_STATUS1 0x1000601e 2
Yes ? 0x10006020 2
Yes ? 0x10006022 2
Yes EMMC_CLKCTL 0x10006024 2
Yes EMMC_BLKLEN 0x10006026 2
Yes EMMC_OPT 0x10006028 2
Yes EMMC_FIFO 0x10006030 2
Yes EMMC_RESET 0x100060E0 2

The IO interface for SDMC/NAND seems to be very similar to the DSi; see libnds for sample code and documentation.

3DS SDMC/NAND IO registers are located at 0x10006000 and apparently mirrored at 0x10007000. It seems the 0x10007000 mirror is never used on retail units.