© 2004 Microchip Technology Inc. DS70070B-page 23-71
Section 23. CAN
CAN Module
23
Figure 23-24: CAN Bus in ISO/OSI Reference Model
OSI REFERENCE LAYERS
Presentation
Transport
Data Link Layer
LLC (Logical Link Control)
Acceptance Filtering
Overload Notification
Recovery Management
MAC (Medium Access Control)
Data Encapsulation/Decapsulation
Frame Coding (stuffing, destuffing)
Medium Access Management
Error Detection
Error Signalling
Acknowledgment
Serialization/Deserialization
Physical Layer
PLS (Physical Signalling)
Bit Encoding/Decoding
Bit Timing
Synchronization
PMA (Physical Medium Attachment)
Driver/Receiver Characteristics
MDI (Medium Dependent Interface)
Connectors
Fault
Confinement
Bus Failure
Management
Supervisor
Shaded Regions
Implemented by
the CAN Module
Has to be Implemented
in dsPIC30F Firmware
Session
Network
Application
CAN
Transceiver
Chip
Connector
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