Portenta C33 Pinout

Hello Guys!
I was wondering that on the portenta C33 (https://docs.arduino.cc/tutorials/portenta-c33/user-manual) tells me that there are
SD-card-capable pins
SSI-capable pins
UART-capable pins
CAN-capable pins
and so on, i was wondering can i also use those pins an IO pint like controlling relays, getting switch inputs, program NFC keypads and so on?
Thanks For The help!

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