Crest Technologies

Crest Technologies
Unit 46
41-49 Norcal Rd
Nunawading VIC 3131
Tel: 03 9873 8830
Fax: 03 9873 8802

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FlexRay controller available from Crest Technologies

Fujitsu distributed by Crest Technologies, has introduced the MB91F465XA, a FlexRay controller. Designed for driver-assistance applications, the MB91F465XA is built around a Fujitsu FR 70 32bit CPU, with an internal clock speed of 100MHz and voltage range of 3-5.5V.

E-ray core

Based on the E-Ray core licensed from Robert Bosch GmbH, the MB91F465XA uses VHDL code certified by TÜV Nord, supports 2-channel and FIFO operations, and supports 218 different identifiers by providing more than 8Kbytes of message buffer memory.

The MB91F465XA FlexRay controller enables FlexRay protocol implementation without the need for companion devices, providing an easy-to-use solution for automotive OEM, tier-one and third-party companies delivering tools and software for automotive applications or test equipment.

The MB91F465XA complements standard automotive buses, including the CAN and LIN. FlexRay-based technology provides approximately 10 times the throughput of CAN, and is expected to gradually replace CAN as automakers and their suppliers adopt x-by-wire solutions.

In addition to the two-channel FlexRay bus interface, one I²C, two CAN and three LIN-USART interfaces are incorporated onto the controller, enabling communication with all automotive bus systems.

Reusable software

The MB91F465XA is a member of the MB91460 series, so it is designed specifically to let engineers reuse their software across different family members and applications.

The MB91F465XA FlexRay controller operates from a single supply ranging from 3V to 5.5V. Internal frequencies of up to 100MHz are generated via the on-chip PLL using external 4MHz quartz crystals as the clock input. A total of 544Kbyte flash memory with read-out protection and 32Kbyte RAM is available, making the MB91F465XA meet AUTOSAR requirements.

Other features of the MB91F465XA FlexRay controller include hardware watchdog, 17-channel 10bit ADC, reload timer, stopwatch function and an RTC module that can operate on external 4MHz or 32KHz quartz crystals.

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