| Pin | Pin
Name | Description |
| 1 |
POWER |
I/O for charging the battery and for supplying external accessories by reducing standby-time |
| 2 |
GROUND |
Digital Ground |
| 3 |
TX / D+ |
Out for Serial-Interface, I/O for USB-Interface full-speed 12Mbis/s |
| 4 |
RX / D- |
In for Serial-Interface, USB-Interface full-speed 12Mbis/s |
| 5 |
DATA / CTS |
I/O Data-Line for accessory-bus, use as CTS in data-operation |
| 6 |
RTS |
I/O use as RTS in data-operation |
| 7 |
CLK / DCD |
I/O Clock-Line for accessory-bus, use as DTC in data-operation |
| 8 |
STEREO1_OUT |
Analog Out, driving ext. left speaker to Pin 9 with mono-headset. Pin 8 and Pin 10 differential mode |
| 9 |
PHANTOM_BUF_OUT |
Analog Out, mid voltage, in stereo-mode reference to Pin 8 and Pin 10, in Mono-mode not used |
| 10 |
STEREO2_OUT |
Analog Out, driving ext. right speaker to Pin 9 with mono-headset. Pin 8 and Pin 10 differential mod |
| 11 |
GND_MIC |
Analog In, for external microphone |
| 12 |
MICEA_AC |
Analog In, external Microphone |
