| MCU Pin | Si4463 Pin | STM8VL-Disco | Function |
|---|---|---|---|
| PB4 | GPIO0 | CN3-4 | ???? |
| PC3 | GPIO1 | CN2-4 | ???? |
| PC4 | nIRQ | CN2-5 | Interrupt |
| PC5 | SCLK | CN2-6 | SPI SCK |
| PC6 | SDI | CN2-7 | SPI MOSI |
| PC7 | SDO | CN2-8 | SPI MISO |
| PD3 | nSEL | CN4-3 | SPI nCE |
| PD4 | SDN | CN4-5 | Shutdown |
| PD5 | ---- | UART TX | |
| PD6 | ---- | UART RX | |
| ---- | GPIO2 | Antenna switch(RX) | |
| ---- | GPIO3 | Antenna switch(TX) |