Does Arduino Nano RP2040 library for Arduino IDE support SPI?

I am trying to use the Arduino Nano RP2040 as a slave and I have installed the "Arduino mbed" library, but it looks like in Arduino IDE the SPI registers such as "SSPCR0" are not recognized. Is there any example for this board using SPI as slave?

Start by reviewing the Arduino mbed library and Arduino IDE support for the Arduino Nano RP2040, focusing on SPI slave use and the SSPCR0 registers. Check whether an existing board SPI example covers slave mode; done means confirming support and providing an example, or clearly documenting the limitation.

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