Configuration – Daughter card
S32R274/372 EVB User Guide, Rev. 0, 08/2018
NXP Semiconductors 23
4.9. CAN FD
Although the EVB motherboard supports CAN, 2x NXP TJA1051T/3 CAN FD (Flexible Data)
compliant physical interfaces are provided (U14 and U16) on the daughtercard for higher speed
applications.
Since the CAN module pads have multiplexable functions these can be configured as follows:
• By default CAN0 signals will go straight to U14
• But if for any reason the motherboard physical interface or other pad functions should be used
then the signals can be diverted to the motherboard by removing R155 and R156 0-ohm links
• Populating R157 and R158 respectively.
Similarly CAN2 signals can be routed to either the on-board CAN-FD phy U16 via J43 and J44, or to
the motherboard Flexray physical interface via J46 and J45.
Figure 21. CAN FD physical interfaces
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