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8XC196K x , J x , CA USER'S MANUAL
This bus configuration reduces point-to-point wiring requirements, making the CAN controller
well suited to automotive and factory automation applications. In addition, it relieves the CPU of
much of the communications burden while providing a high level of data integrity through error
management logic.
The CAN controller (Figure 12-2) has one input pin, one output pin, control and status registers,
and error detection and management logic.
RXCAN
Bus
Driver
12-2
Global
Mask
Registers
Mask 15
Register
RAM
CAN Bus
Figure 12-2. CAN Controller Block Diagram
Bit Timing Registers
Control Register
Status Register
Interrupt Register
Message
Objects 1-14
Message
Object 15
Error
Management
Logic
TXCAN
Bus
Driver
2
A2590-02
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