st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 104

• Manufacturer Part Number: st10f269z1
• Description: St10f269 16-bit Mcu With Mac Unit, 256k Byte Flash Memory And 12k Byte Ram
• Manufacturer: STMicroelectronics

15 - CAN MODULES
The ST10F269 also supports single CAN Bus
multiple (dual) interfaces using the open drain
option of the CANx_TxD output as shown in
Figure 48. Thanks to the OR-Wired Connection,
only one transceiver is required. In this case the
design of the application must take in account the
wire length and the noise environment.
Figure 48 : Single CAN Bus, Dual Interfaces,
Single Transceiver
Multiple CAN Bus
The ST10F269 provides 2 CAN interfaces to
support such kind of bus configuration as shown
in Figure 49.
Figure 49 : Connection to Two Different CAN
Buses (e.g. for gateway application)
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CAN_H
CAN_H
CAN_H
CAN_H
* Open drain output
Transceiver
Transceiver
RxD TxD
RxD TxD
CAN1
CAN1
CAN
CAN
*
CAN
bus 1
CAN bus
RxD TxD
CAN2
Transceiver
RxD TxD
*
CAN2
CAN
2.7k
CAN
bus 2
+5V
ST10F269