Infineon CYW43439 provides Wi-Fi 4 (802.11 b/g/n) and Bluetooth 5.2 in the Raspberry Pi Pico W, connecting via SPI to the RP2040 processor with a proprietary interface managed by firmware.
| Pin | Name | Function | Type |
|---|---|---|---|
| SPI_CLK | SPI_CLK | SPI clock from RP2040 | BUS |
| SPI_MOSI | SPI_MOSI | SPI data to CYW43439 | BUS |
| SPI_MISO | SPI_MISO | SPI data from CYW43439 | BUS |
| SPI_CS | SPI_CS | SPI chip select | BUS |
| WL_ON | WL_ON | Wireless enable | I/O |
| BT_ON | BT_ON | Bluetooth enable | I/O |
| ANT | ANT | Antenna trace on PCB | BUS |
Infineon CYW43439 provides Wi-Fi 4 (802.11 b/g/n) and Bluetooth 5.2 in the Raspberry Pi Pico W, connecting via SPI to the RP2040 processor with a proprietary interface managed by firmware.