CPU_42A-V1
CPU Board XMC4200 Actuator
Hardware Description
Board User's Manual
12
Revision 1.0, 2013-02-19
2.3
CAN
The CPU_42A-V1 board provides a CAN interface via a Sub-D DE-9 connector (X200).
Infineon’s high speed
CAN transceiver IFX1050GVIO for industrial application supports 3.3V I/O logic and is suitable for 12V and 24V
bus systems with an excellent EMC performance. The CAN bus is terminated on-board with 120 Ohm.
Figure 6
CAN Interface
Table 3 shows the signals available at the CAN connector X200.
Table 3
CAN Connector Pinout (X200)
Pin No.
Signal Name
Description
1
NC
No Connection
2
CANL
CAN Low
3
GND
Ground
4
NC
No Connection
5
NC
No Connection
6
GND
Ground
7
CANH
CAN High
8
NC
No Connection
9
VDD
5 Volt (not connected, use R201 to apply power to the connector )
The CAN signals CAN_TXD and CAN_RXD are routed to XMC4200 port pins P1.5 and P1.4 respectively via
the switches U301 and U303.These switches will disconnect the CAN transceiver from the port pins P1.5 and
P1.4 in case a UART function is required. On these pins of the XMC4200 the UART function is overlaid with the
CAN function. The UART function can be used for external communication via a USB virtual COM port, which is
supported by the on-board debugger.
