FlexRay™
A key element in Fujitsu's automotive strategy
The introduction of the new FlexRay communication protocol opens the door for future Automotive applications like X-by-wire, requiring enhanced safety features compared to today's automotive network systems. Fujitsu integrates FlexRay into its Automotive-proven 16-bit and 32-bit Microcontrollers and in doing so completes its product portfolio dedicated to the Automotive market.
The evolution of today's automobiles into highly integrated, safe, comfortable and reliable systems push the requirements for the automotive bus systems to the next level. The dramatic increase of multiple sensors, actuators and control systems require the combination of higher data rates, deterministic behaviour and fault tolerance making FlexRay the perfect backbone bus system. Flexibility in both bandwidth and system extension will also be key attributes as the need for increased functionality and on-board diagnostics also increases.
The first applications that will deploy FlexRay are chassis- and powertrain applications preparing the ground for the first x-by-wire applications which are estimated to become available around the end of this decade. As a member of the FlexRay consortium since 2002, Fujitsu is working to develop next-generation automotive by-wire applications.
With its wide range of products including CAN and LIN interface, Fujitsu's MCUs are the genuine solution for automotive applications such as body and comfort electronics, climate control, dashboards, infotainment & navigation, safety & sensor electronics, power-train control, chassis electronics and data backbone. The new FlexRay products will complete Fujitsu's offerings towards the automotive market.
Since September 2005 Fujitsu presented the first FlexRay communication controller to the market based on the ERAY protocol core by BOSCH. Meanwhile a second device MB88121A is available that supports the most recent protocol specification 2.1. It will be followed by MB88121B that will assure full compliance to the FlexRay protocol as it will be proven with respective test pattern currently under development at parities contracted by the FlexRay consortium.
The first MCUs with integrated FlexRay communication channels will be available in 2006. In order to empower customers to start their system development and design flow for FlexRay-based applications, Fujitsu has offered development tools like FPGA-based FlexRay-boards since 2005 and the new FlexRay starter kit available since December 2005 featuring the MB91F467D MCU and MB88121A.
32-bit
| Part | Memory | Communication Ports | Timer | Special Functions | Package |
| MB91F465XAPMC MB91460 Series |
RAM: 16.00 KByte D-RAM: 16.00 KByte I-Cache: 8.00 KByte FLASH: 544.00 KByte |
CAN: 2 ch FlexRay: yes I2C: 1 LIN-UART: 3 |
I/O Timer: 8 RLD Timer: 8 PWM: 12 ICU: 8 OCU: 6 |
ADC: 17 ch SubClock: yes ext. IRQ: 11 |
FPT-100P-M20 |
Development Kits
FlexRay Node, FPGA-based communication controller
FlexRay evaluation kit: FlexRay-FPGA-Eva-Kit-369
This Evaluation Kit contains all the components you need for a fast, easy start-up of a FlexRay communication.
PDF FlexRay evaluation kit: FlexRay-FPGA-Eva-Kit-369[177 KB]
SK-91F467-FLEXRAY starter kit
FlexRay starter kit: SK-91F467-FLEXRAY
The SK-91F467-FLEXRAY is a multifunctional starter kit for the Fujitsu 32-bit Flash microcontroller MB91F467D series and Fujitsu FlexRay stand-alone communication controller MB88121. Together with the Softune Workbench Monitor debugger this single board is an autonomous platform for the development and testing of software. Alternatively, the starter kit provides a plug-in for an emulator for the MB91F460 family.
The starter kit is especially equipped for the analysis and use of the FlexRay bus system. The DECOMSYS::COMMSTACK driver
library allows easy access to the FlexRay Communication Controller (MB88121). Pre-compiled examples free the user from own
developments and demonstrate the capabilities of FlexRay. However with the configuration tool FlexConfig® the user can
design his own communication matrix and generate the initialization code for the FlexRay Communication Controller (CHI files).
The starter kit enables the designer to immediately start developing software for his application even before his own target
system is available.
PDF FlexRay starter kit: SK-91F467-FLEXRAY[539 KB]
Products
MB88121: first implementation of the Bosch ERAY core that supports protocol specification V2.0. Samples are available on request
MB88121A: Supports protocol specification V2.1 and has been available since November 2005. For details please refer to the PDF MB88121 fact sheet [89 KB]. The MB88121B device is based on final ERAY IP release matching compliance tests.
The MB88121 provides enhanced host interface options for a vast number of MCUs used in automotive applications. Several parallel bus modes specifically will support 16FX and 32-bit FR MCUs.
We will also make available a serial host interface via SPI, with the first samples planned for the third quarter of 2006.
MB91F465XA: Is the latest addition to Fujitsu’s growing family of FlexRay MCUs.
Based on the E-Ray core licensed from Robert Bosch GmbH, MB91F465XA utilises the VHDL code certified by TÜV Nord. The device supports 2-channel and FiFo operations, and with more than 8kBytes of message buffer memory, up to 128 different identifiers can be supported. For details please refer to the PDF MB91F465XA fact sheet.
Papers and Presentations
- PDF Entwicklungsplattform für FlexRay™ Anwendungen[712 KB, German]
- PDF Fujitsu FlexRay Solutions - from systems support to silicon[1,285kb] (shown at the FlexRay Product Day at Böblingen /Germany in Dec 2005)
[Interrupt Usage On Flexray CC]
Application Notes
- PDF FLEXRAY-FPGA-EVA-KIT-369[105 KB, Interrupt Usage On Flexray CC]
- PDF FLEXRAY-FPGA-EVA-KIT-369[1.26 MB, Hardware Modification For Interrupt Usage]
[Hardware Modification For Interrupt Usage]
