Hardware

Specifications

• Includes (2) 0.3 Megapixel VGA Cameras
• 240MB(+16MB probably reserved for wear leveling purposes (e.g. replacing bad blocks)) Internal Flash Memory - Samsung kmapf0000m-S998 MOVI NAND - MMC Interface
• 16MB RAM - NEC uPD 46128512AF1 - DDR SRAM or a Fujitsu 128-Mbit FCRAM 82DBS08164D-70L
• (2) 256 x 192 3.25 Inch Displays, one of which has a resistive touch screen
• Backwards compatible with Nintendo DS games but not GBA games due to the lack of a gameboy cartridge port.
• Integrated ARM7/ARM9 cores clocked at 133mhz in real mode and downclocked to 66mhz for compatibility mode.
• PAIC3000D Sound Chip - possibly a TI codecs: AIC3 ????
• Mitsumi (MM3317A) or TI 72071B0 - Power supply and charger circuit ????
• SD/SDHC Card slot
• WiFi dongle with integrated 128KB SPI Flash for NVRAM, WiFi settings

Images

Front

The socket to the left of the ARM processor is the wifi chip socket.

Back

NAND pinout

PCB overlay

CPU with new ram

Glamor Shot

Test Points

/IRQ_0	COM1	LDG10	LS	P05	SD10_CD	SPLN	X+
/mRST	COM2	LDG11	MC1_CLK	P06	SD10_CLK	SPLP	Y-
/WiFi_RST	DCLK	LDG12	MC1_CS	P06	SD10_CMD	SPRN	Y+
ADPO	DET	LDG13	MC1_CS2	P07	SD10_DATA1	SPRP	YELLOW
AOUT	EXTB+	LDG14	MC1_DET	P08	SD10_DATA2	SR
ATH_TX_H	GCK	LDG15	MC1_IO0	P09	SD10_DATA3	TH
B+	GND1	LDG20	MC1_IO1	PENIRQ	SD10_DATAO	VCNT5
BLA1	GND2	LDG21	MC1_IO2	PM_SLP	SD10_VDD	VD18
BLA2	GPIO330	LDG22	MC1_IO3	PMOFF	SD10_WP	VDD-5
BLC1	GSP	LDG23	MC1_IO4	PVDD	SD11_CLK	VDD10
BLC2	HP#SP	LDG24	MC1_IO5	PWSW	SDA	VDD12
BLUE	HSYNC	LDG25	MC1_IO6	PWSWO	SDA1	VDD28
BT-	INI	LDR10	MC1_IO7	R00	SG	VDD33
BT+	LBD24	LDR11	MC1_IREQ	R01	SL	VDD42
CAM_D0	LDB10	LDR12	MC1_RES	R7	SND_MCLK	VDD5
CAM_D1	LDB11	LDR13	MC1_VDD	RCLK	SND_SCLK	VDET-
CAM_D2	LDB12	LDR14	mFE	RED	SND_SD0	VGND
CAM_D3	LDB13	LDR15	MIC	RESET	SND_SDI	VIN
CAM_D4	LDB14	LDR20	ORANGE	REV	SND_WS	VOLN
CAM_D5	LDB15	LDR21	P00	RICHG	SPI_CS1	VOLP
CAM_D6	LDB20	LDR22	P01	Rosc	SPI_CS2	VSHD
CAM_D7	LDB21	LDR23	P02	RTC_INT	SPI_CS3	VSYNC
CAM_LED	LDB22	LDR24	P03	SCK	SPI_MISO	WL_RXPE
CAM_RST	LDB23	LDR25	P04	SCL	SPI_MOSI	WL_TXPE
CKI	LDB25	LIN	P04	SCL1	SPL	X-

References

1. http://en.wikipedia.org/wiki/Nintendo_DSi
2. http://insidetronics.blogspot.com/2008/11/new-nintendo-dsi-teardown.html
3. http://techon.nikkeibp.co.jp/english/NEWS_EN/20081111/161077/
4. http://games.gearlive.com/playfeed/article/q408-nintendo-dsi-announced-larger-screens-dual-cameras-dsi-shop-store/
5. http://www.ifixit.com/Guide/First-Look/Nintendo-DSi/714/1