| Pin | Name | Dir | Description |
|---|---|---|---|
| 16 | GND | --- | Ground |
| 15 | TX_Audio | ![]() |
? |
| 14 | AGND | --- | Audio_Ground |
| 13 | HF_ON (L=ON) | ![]() |
L=H/F ON |
| 12 | AOP_Sense | ![]() |
Data Adaptor Select |
| 11 | Serial_Up | ![]() |
Rx UART up (9600,33.8kbps) |
| 10 | Serial_Down | ![]() |
Tx UART down |
| 9 | External_Power | ![]() |
POWER FOR CHARGING |
| 8 | Ground | ||
| 7 | RX_Audio | ![]() |
|
| 6 | Radio_Mute | ![]() |
L=MUTE |
| 5 | HF_Sense | ![]() |
L=H/F MODE |
| 4 | Reserved | L=FLASH WRITE ENABLE | |
| 3 | Ignition | ![]() |
H=ON |
| 2 | Logic_Power | ![]() |
H=HANDSET ON |
| 1 | PAON | ![]() |
Power Amplifier Control Signal |
pins 3,4 must be shorted to flash



