Game Boy:Connector Pinouts

Game Boy Link Cable DMG-07/DMG-04

Game Boy Link Cable DMG-07/DMG-04

Pin #	Name	Description	DMG-07 Color	DMG-04 Color
1	VCC	5V	Brown	N/A
2	SO	Serial Out	Red	Red/Orange
3	SI	Serial In	Yellow	Orange/Red
4	SD	CPU pin 14	N/A	N/A
5	SC	Clock	Green	Green
6	GND	Ground	Blue	Blue
S	Shield	Ground	Bare	Bare

Cartridge

Pins numbered left to right, cartridge label up.

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