Motorola MCF5281 사용자 설명서
25-4
MCF5282 User’s Manual
MOTOROLA
The CAN System
25.2 The CAN System
Figure 25-2. Typical CAN system
Each CAN station is connected physically to the CAN bus through a transceiver. The
transceiver provides the transmit drive, waveshaping, and receive/compare functions
required for communicating on the CAN bus. It can also provide protection against damage
to the FlexCAN caused by a defective CAN bus or defective stations.
transceiver provides the transmit drive, waveshaping, and receive/compare functions
required for communicating on the CAN bus. It can also provide protection against damage
to the FlexCAN caused by a defective CAN bus or defective stations.
25.3 Message Buffers
25.3.1 Message Buffer Structure
Figure 25-3 shows the extended (29 bit) ID message buffer structure. Figure 25-4 displays
the standard (11 bit) ID message buffer structure.
the standard (11 bit) ID message buffer structure.
CAN Bus
FlexCAN
CANRX
Transceiver
CAN Station 1
CAN Station 2
CAN Station n
CANTX
MCF5282