Is it possible to route 1 of the CAN interfaces from the STM32 to the pinout of the 300ZI? We need a CAN bus and placing a CAN transceiver chip is no big deal, but I can't tell which port/pins of the STM32 are mapped to the 300ZI's pinout provided this manual (

The reason for wishing to do this as opposed to using the 300RI is that the ZI has an additional UART and most importantly, access to the GPS 1PPS input, but from the STM32f405 (guessing this is the chip) function mapping, I couldn't reason a port/pin utilized that shared a CAN interface. Thanks for your assistance.