| Pin |
Description |
| 1 |
Audio Out |
| 2 |
Audio In |
| 3 |
Accessory Sense. GND to enable External Mic and Speaker (Analog) |
| 4 |
Audio Signal GND |
| 5 |
Portable handsfree In. |
| 6 |
Music Mute Out, High when phone is used. |
| 7 |
In Flash Memory Voltage and Service Voltage,
In 0V=normal,+5V=test, +12V=test+flash |
| 8 |
Logic Out, Status On. Sources over 100mA |
| 9 |
Data Out from Mobile Station. Debug messages appear here at 112KBaud when in debug mode. |
| 10 |
Digital Ground and DC return |
| 11 |
Data in |
| 12 |
DC in for battery charging, DC out for accessory power |