ZHCSJK5C January 2018 – October 2020 TCAN4550-Q1
The GPO2 pin is an open drain configurable output function pin that provides selected interrupts. This pin needs an external pull-up resistor to VIO to function properly. The output function can be changed by using register 16'h0800[23:22] and can be configured as a watchdog output reset pin.
In test mode, this pin becomes the RXD_INT_PHY transceiver output or TXD_INT_CAN CAN Controller output pin.