Communication between Qorvo shield and Arduino

I am new to this community can I know how qorvo shield and Arduino communicates

The DWS3000 shield uses the arduino hardware form factor. This allows the shield to connect to many compatible MCUs boards from Nordic, STM and others. The DWS3000/DW3000 communicates to the connected MCU via SPI. The DWS3000/DW3000 is a SPI ‘peripheral’.