GBA:Connector Pinouts

Cartridge

Pins are numbered left to right, cartridge label up. There is a switch in the cartridge slot used to differentiate between DMG/CGB and AGB cartridges. When the switch is activated, the pinout is the same as the Game Boy.

Pin	Function	Pin	Function	Pin	Function	Pin	Function
01	+3.3V	11	Data/Address Bit 5	21	Data/Address Bit 15	31	IRQ
02	CLOCK	12	Data/Address Bit 6	22	Address Bit 16	32	GROUND
03	WRITE	13	Data/Address Bit 7	23	Address Bit 17
04	READ	14	Data/Address Bit 8	24	Address Bit 18
05	CHIP SELECT	15	Data/Address Bit 9	25	Address Bit 19
06	Data/Address Bit 0	16	Data/Address Bit 10	26	Address Bit 20
07	Data/Address Bit 1	17	Data/Address Bit 11	27	Address Bit 21
08	Data/Address Bit 2	18	Data/Address Bit 12	28	Address Bit 22
09	Data/Address Bit 3	19	Data/Address Bit 13	29	Address Bit 23
10	Data/Address Bit 4	20	Data/Address Bit 14	30	CHIP SELECT 2

GBA SP Power / Headphone Connector

The GBA SP uses a connector which combines power delivery and audio output.

EXT.2

Pin	Name	Description
1	P31	Left Audio
2	P32	Supply 5.2v
3	P33	Right Audio
4	P34	Audio GND
5	P35	Audio Disable
6	P36	Supply GND

Link Port

GBA / GBA SP

GBA link cable pin numbering

EXT / EXT.1

Pin	Name
1	VDD
2	SO
3	SI
4	SD
5	SC
6	GND

Micro

The Game Boy Advance Micro uses a single connector for both power and link cable.

EXT.

Pin	Name
1	Supply 5.2v
2	Serial 3.3v
3	SO
4	SI
5	SD
6	SC
7	Serial GND
8	Supply GND