CAN FD LIGHT BUS CONTROLLER IP

Overview

The Controller Area Network – Flexible Data-Light (CAN-FD Light) Controller IP implements the CAN FD-Light (CIA 604-1) protocol. It can be integrated into devices that require CAN-FD-Light connectivity commonly used in sensors and actuators for the automotive and industrial applications.

Arasan’s CAN-FD-Light Controller core is easy to integrate with the Host processor using AMBA-APB standard interface. This highly configurable design supports programmable Interrupts, data and baud rates, acceptance filters & buffering schemes specific to the application.

Choosing the Right CAN Bus Standard for Specific ApplicationsThe choice of a specific CAN bus standard depends on the application requirements, including data rate, payload size, cost, and criticality. Here are some key considerations for selecting the right standard:

1. Bandwidth and Data Throughput: Applications requiring high-speed data transfer and large payload sizes, such as ADAS, infotainment systems, and autonomous vehicles, would benefit from CAN FD Bus Controller IP and CAN XL Controller IP due to their higher data rates and enhanced bandwidth.2. Real-Time Requirements: Safety-critical applications that demand deterministic and real-time communication, like powertrain control and chassis control, can rely on Classical CAN IP core due to its proven reliability and fault confinement mechanisms.3. Cost Considerations: It provides a balance between functionality and affordability.4. Compatibility and Legacy Systems: When existing systems or networks are already based on Classical CAN, backward compatibility becomes crucial. Upgrading to CAN FD IP or CAN XL IP may require additional infrastructure changes, while maintaining Classical CAN compatibility can be a more straightforward transition.5. Future Scalability: For applications where future scalability and compatibility with emerging technologies are critical, such as advanced telematics systems, CAN XL Bus IP provides an ideal choice. Its extended capabilities and larger payload sizes offer room for future growth and evolving communication requirements.

Fig 1 Block Diagram of CAN-FD-Light Controller

 

 

Key Features

CAN Controller IP Specifications Support

• Implements the CIA 604-1 CAN-FD-Light specification
• New Commander-Responder Architecture with point-to-point communication
• 64 data bytes to multiple megabytes
• Time-stamping support, compliant to CiA0603 specification
• TTCAN (ISO 11898 level-1)
• Optimized for AUTOSAR and SAE J1939
Advanced Features
• No broadcast, no error frames, no advertising errors, simple, robust design
• Low software overhead, future-proof design
• CAN-FD-Light Controller has accurate clock, (frequency and phase shift not
present)
• Edge-density supported, CAN-FD bit stuffing
• Bus utilization is almost 100%

RAS Features
• 11-bit identifier restriction for CAN-FD
• Communication interrupts present
• Same data rate for all phases
• Bit Controlling set to fixed value
• Designed to increase reliability
• Supports debug, system maintenance and system optimization for last error types
• Special listen-only mode for CAN-FD traffic analysis and automatic bit-rate detection for performance measurement
• Loopback mode for debug and self-testing during integration and system bring-up

Block Diagram

CAN FD LIGHT BUS CONTROLLER IP Block Diagram

Deliverables

  •  System Verilog RTL Source Code
  •  A simplified Test bench with simulation
  •  models to run initial set of tests after release
  •  Synthesizable Netlist
  •  Synthesis Scripts and exception lists
  •  Timing Report
  •  Protocol Compliance & Coverage Report
  •  Sample Firmware with Drivers
  •  Application Notes

Note*: ” License does not include the CAN Protocol License and CAN Trademarks”

Technical Specifications

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Semiconductor IP