CAN FD Bus Controller IP

Overview

CAN FD Bus Controller IP is an extension of Classical CAN Bus IP that addresses the increasing need for higher data rates and larger payload sizes. It enhances the original CAN protocol by enabling faster communication and increased bandwidth. CAN FD Bus IP is particularly useful in applications such as advanced driver-assistance systems (ADAS), infotainment systems, and diagnostic tools, where high-resolution sensor data, multimedia content, and firmware updates require higher data throughput.

The Controller Area Network – Flexible Data (CAN-FD) Controller IP implements the CAN 2.0A, CAN 2.0B as well as the high-performance CAN-FD (Flexible Data Rate) protocols. It is compliant to both Non-ISO CAN-FD from BOSCH as well as ISO11898-1:2015 DIS. It can be integrated into devices that require CAN connectivity commonly used in automotive and industrial applications.

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

 

 

 

Key Features

CAN Bus Controller IP Specifications Support

  •  Implements the CAN 2.0A and CAN 2.0B protocols
  •  Supports ISO CAN-FD-ISO 11898-1:2015 DIS protocols
  •  Non-ISO BOSCH CAN-FD Protocol
  •  64 data bytes to multiple megabytes
  •  Time-stamping support, compliant to CiA0603 specification
  •  TTCAN (ISO 11898 level-1)
  •  Optimized for AUTOSAR and SAE J1939
  •  ISO26262 Certified, CAN2/0/CAN-FD Compliant, and designed for ASIL-B

Advanced Features

  • SDB-Software Defined Buffers, to support large external and small internal memories with minimum latency
  • Optimized design for short data frames to create latency advantage(best for CAN-FD)
  • Highly configurable design for data rate, baud-rate, interrupt sources and mix-bit options
  • Low software overhead, future-proof design

RAS Features

  • Advanced Error management unit prevents data loss during transmission and prevents message collisions
  • Designed to increase reliability, faster error reporting
  • Separate CRCs for CAN2.0 and CAN-FD
  • Frame or Format error reporting is done on the receiver side in a timely manner
  • Supports debug, system maintenance and system optimization for Last error types, Arbitration lost position, error threshold indicators and others
  • Special listen-only mode for CAN/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 Bus Controller IP Block Diagram

Deliverables

  • System Verilog RTL Source Code
  • A simplified Testbench 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

Technical Specifications

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Semiconductor IP