EMMC Registers - Revision history

ElementW: Add EMMC_PORTSEL

2020-07-07T21:42:16Z

Add EMMC_PORTSEL

2018-05-15T14:13:41Z

Actually correct this.

← Older revision		Revision as of 18:13, 15 May 2018
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	These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface. ~~Despite the bus clock~~ of the ~~ARM9 being~~ double of the DSi ~~in 3DS mode the SDMMC controller has~~ HCLK~~=33.513982 MHz~~.		These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface. HCLK of the SDMMC controller is 67.027964 MHz (double of the DSi HCLK).

	=Registers=		=Registers=

2018-05-15T12:49:37Z

← Older revision		Revision as of 16:49, 15 May 2018
Line 1:		Line 1:
	These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface. Despite the bus clock of the ARM9 ~~beeing~~ double of the DSi in 3DS mode the SDMMC controller has HCLK=33.513982 MHz.		These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface. Despite the bus clock of the ARM9 being double of the DSi in 3DS mode the SDMMC controller has HCLK=33.513982 MHz.

	=Registers=		=Registers=

2018-05-15T12:45:51Z

← Older revision		Revision as of 16:45, 15 May 2018
Line 1:		Line 1:
	These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface.		These registers are used to access the system [[Flash_Filesystem\|NAND]] and the inserted SD card. Both devices use the same interface. Despite the bus clock of the ARM9 beeing double of the DSi in 3DS mode the SDMMC controller has HCLK=33.513982 MHz.

	=Registers=		=Registers=

2017-01-20T18:33:14Z

Fix sample code URL (https://github.com/devkitPro/libnds/commit/ae04ca0e0e682739bb142df3d7c213d07b1e507d)

← Older revision		Revision as of 21:33, 20 January 2017
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	\|}		\|}

	The IO interface for SDMC/NAND seems to be very similar to the DSi; see libnds for [https://github.com/devkitPro/libnds/blob/master/source/arm7/sdmmc.c sample code] and [https://github.com/devkitPro/libnds/blob/master/include/nds/arm7/sdmmc.h documentation], and GBATEK for [http://problemkaputt.de/gbatek.htm#dsisdmmcioportscommandparamresponsedata better documentation].		The IO interface for SDMC/NAND seems to be very similar to the DSi; see libnds for [https://github.com/devkitPro/libnds/blob/master/source/arm7/sdmmc.twl.c sample code] and [https://github.com/devkitPro/libnds/blob/master/include/nds/arm7/sdmmc.h documentation], and GBATEK for [http://problemkaputt.de/gbatek.htm#dsisdmmcioportscommandparamresponsedata better 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.		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.

2017-01-05T23:55:12Z

← Older revision		Revision as of 02:55, 6 January 2017
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	\| 0x10006000		\| 0x10006000
	\| 2		\| 2
	\|		\| Boot9, NewKernel9Loader, Process9
	\|-		\|-
	\| style="background: green" \| Yes		\| style="background: green" \| Yes

2016-12-20T00:14:49Z

SD card insertion status timing, empirically timed by profi200

← Older revision		Revision as of 03:14, 20 December 2016
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	\|-		\|-
	\|}		\|}

			===SD card insertion status===
			Assertion happens around 250 ms after SD card insertion and/or enabling the EMMC hardware (delay could possibly be due to an SD bus timeout?).

2016-02-28T17:26:19Z

should be ok

← Older revision		Revision as of 20:26, 28 February 2016
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	\|-		\|-
	\| 5		\| 5
	\| SD card insertion status ~~(?)~~ (0 = missing, 1 = inserted)		\| SD card insertion status (0 = missing, 1 = inserted)
	\|-		\|-
	\|}		\|}

2016-02-28T17:10:42Z

← Older revision		Revision as of 20:10, 28 February 2016
Line 119:		Line 119:
	\|-		\|-
	\| 3		\| 3
	\| SD card removal flag ~~(?)~~ (Set to 1 when SD card is removed)		\| SD card removal flag (Set to 1 when SD card is removed)
	\|-		\|-
	\| 4		\| 4
	\| SD card insertion flag ~~(?)~~ (Set to 1 when SD card is inserted)		\| SD card insertion flag (Set to 1 when SD card is inserted)
	\|-		\|-
	\| 5		\| 5
	\| SD card insertion status (0 = missing, 1 = inserted)		\| SD card insertion status (?) (0 = missing, 1 = inserted)
	\|-		\|-
	\|}		\|}

2016-02-28T04:55:20Z

Registers

@@ Line 105: / Line 105: @@
 | 2
+|
 |}
@@ Line 110: / Line 111: @@
 DS SDMC/NAND IO registers are located at 0x10006000 and apparently mirrored at 0x10007000. It seems the 0x10007000 mirror is never used on retail units.