User's Manual l MBLX2160A UM 0101 l © 2022, TQ-Systems GmbH
Page 31
3.9.6
CAN
The LX2160A provides two internal CAN controllers, which support both the 2.0B standard and the CAN-FD protocol.
The interfaces are not galvanically isolated.
The muxing offers the following options:
•
CAN1 or I2C_3 or GPIO
•
CAN2 or I2C_4 or GPIO
The I/O reference voltage is 1.8 V. The I/O signals of the transceivers are fed through a level shifter 1.8V
⇔
3.3V. A 120 Ω split
termination is provided; this can be switched off via a DIP switch. The CAN signals are ESD protected.
CAN1 and CAN2 can be individually terminated by DIP switch, so that either the CAN interfaces or the muxing options I2C3 and
I2C4 can be used. These are routed to a pin header.
Figure 28:
Block diagram CAN
Figure 29:
CAN termination DIP switches
Figure 30:
CAN connector pinout
