ST10F271E STMICROELECTRONICS [STMicroelectronics], ST10F271E Datasheet - Page 77

• Manufacturer Part Number: ST10F271E
• Description: 16-bit MCU with 128 Kbyte Flash memory and 8/12 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10F271B/ST10F271E
Multiple CAN bus
The ST10F271 provides two CAN interfaces to support such kind of bus configuration as
shown in
Figure 15. Connection to two different CAN buses (e.g. for gateway application)
Parallel Mode
In addition to previous configurations, a parallel mode is supported. This is shown in
Figure 16
Figure 16. Connection to one CAN bus with internal Parallel Mode enabled
1. P4.4 and P4.7 when not used as CAN functions can be used as general purpose I/O
Figure 15
.
while they cannot be used as external bus address lines.
CAN_H
CAN_L
.
CAN_H
CAN_L
P4.5
CAN bus 1
Transceiver
RX
CAN1
CAN
P4.5
RX
Transceiver
TX
CAN1
P4.6
CAN
TX
P4.4
P4.6
Transceiver
RX
CAN bus 2
CAN2
CAN
P4.4
RX
TX
CAN2
P4.7
CAN bus
TX
CAN_H
CAN_L
P4.7
XMISC.CANPAR = 0
XMISC.CANPAR = 1
(Both CAN enabled)
CAN modules
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