Been toying with the idea of using the rp2350b in a pci slot theoretically the pio can handle the 33Mhz bus but then you are only left with 12 gpio for everything else. Don't know the pci spec but Id guess it requires at least a handful of other gpio.
Maybe it could be used as a usb port or a spi sd card reader.
I don't even have a PC with a pci slot but I can dream.
#rp2350 #pci