There are ten sets of pin headers on the board.
They are numbered according to the PCB sections (J X Y N).
| ID
|
#Pins
|
Purpose
|
| J1D2
|
9
|
XDK Debug Header #2
|
| J1F1
|
6
|
Southbridge LED Header
|
| J2B1
|
13
|
XDK Debug header
|
| J2D1
|
6
|
Southbridge Header
|
| J2D2
|
8
|
GPU Header
|
| J5C1
|
6
|
ANA Header
|
| J5C2
|
6
|
GPU SPI EEPROM Header
|
| J7F1
|
6
|
CPU SPI EEPROM Header
|
| J7G1
|
3
|
Aux Power Header
|
| J8C1
|
10
|
CPU JTAG Header
|
J1D2, J2D1, J2D2
| J1D2
|
Pin
|
Signal
|
Description
|
| 1
|
|
Unknown
|
| 2
|
|
Unknown
|
| 3
|
|
Unknown
|
| 4
|
|
Unknown
|
| 5
|
|
Unknown
|
| 6
|
|
Unknown
|
| 7
|
|
Unknown
|
| 8
|
GND
|
Ground
|
| 9
|
GND
|
Ground
|
| J2D1
|
Pin
|
Signal
|
Description
|
| 1
|
|
Unknown
|
| 2
|
|
Unknown
|
| 3
|
|
Unknown
|
| 4
|
|
Unknown
|
| 5
|
|
Unknown
|
| 6
|
GND
|
Ground
|
| J2D2
|
Pin
|
Signal
|
Description
|
| 1
|
|
Unknown
|
| 2
|
|
Unknown
|
| 3
|
|
Unknown
|
| 4
|
|
Unknown
|
| 5
|
|
Unknown
|
| 6
|
GND
|
Ground
|
| 7
|
|
Unknown
|
| 8
|
|
Unknown
|
scheme: http://people.zeelandnet.nl/kbgeldof/j2b1_conn.JPG
