DS Game Card

Available at Nintendo DS & DS Lite.

Pinout

Pin	Dir	Name	ROM connection	EPROM connection	Notes
1		GND	All unused pins	Pin 4
2		CLK	Pin 5	Pin 6	4MB/s
3	?	?	Pin 17		Seems to be not connected in console
4		/CS1	Pin 44		ROM Chipselect
5		/RES	Pin 42		Reset, switches ROM to unencrypted mode
6		/CS2		Pin 1	EPROM Chipselect
7		IRQ			GND
8		3.3V	Pins 2, 23	Pins 3, 7, 8
9		D0	Pin 18
10		D1	Pin 19
11		D2	Pin 20
12		D3	Pin 21
13		D4	Pin 24
14		D5	Pin 25
15		D6	Pin 26	Pin 2
16		D7	Pin 27	Pin 5
17		GND	All unused pins	Pin 4

Note: Direction is cartridge relative DS.

Chipselect High-to-Low transitions are invoking commands, which are transmitted through data lines during next following eight CLK pulses, after the command transmission, further CLK pulses are used to transfer data, the data transfer ends at chipselect Low-to-High transition. Data should be stable during CLK=LOW period throughout CLK rising edge.

Note: Supply Pins (1,8,17) are slightly longer than other pins.

Contributions

• Joakim Ögren

Sources

• GBATEK: Gameboy Advance Technical Info