Austin, tex. Freescale Semiconductor has launched integrated as well as stand-alone FlexRay controllers dubbed the MC9S12XFR and MFR4300. They are based on the latest FlexRay version 2.1 protocol.
The MC9S12XFR is Freescale’s first microcontroller to integrate a FlexRay module with the 16-bit S12X core.
By introducing the two FlexRay node controllers, Freescale believes it has taken a significant step forward in providing the key semiconductor components for next generation X-by-wire subsystems.
The FlexRay protocol provides higher data rates and fault tolerance required for advanced control systems combining multiple sensors, actuators and electronic control units. Core member companies of the FlexRay Consortium include BMW, Bosch, DaimlerChrysler, Freescale, General Motors, Philips and Volkswagen. Other leading Japan-based manufacturers such as Honda, Nissan and Toyota have joined the consortium as premium associate members, adding momentum to the growing acceptance of the FlexRay protocol.
The 9S12XFR and MFR4300 devices are ideal for chassis control, body electronics and powertrain applications where increased functionality and on-board diagnostics are required, according to Freescale. The FlexRay devices complement major in-vehicle networking standards (CAN, LIN and MOST) by adding a high-speed protocol for the most demanding systems.
The MC9S12XFR features a 16-bit HCS12X 40MHz enhanced CPU with XGATE co-processor. There is a FlexRay v2.1 protocol module for high-speed serial communication up to 10Mbit/sec on each of two channels, 128Kbytes of flash memory with optional error code correction (ECC), 2KB electrically erasable programmable read-only memory (EEPROM), 16KB random access memory (RAM), loop control Pierce oscillator with 0.5MHz to 16MHz crystal or full swing without internal feedback using 0.5MHz to 40MHz crystal.
The device also embeds a 16 channel analog-to-digital (ADC) with configurable 8- and 10-bit resolution, 6-channel pulse width modulator with fault protection (PMF) optimized for electrical motor control as well as an embedded scalable controller area network (MSCAN) supports CAN 2.0 A/B. Samples are available in 80 quad flat package (QFP) as well as 64 and 112-pin low-profile quad flat package (LQFP).
The MFR4300 features a FlexRay v2.1 protocol implementation with selectable single or dual channel support; 128 message buffers, each with a payload up to 254 bytes of data, and two configurable receive first-in first-out (FIFO) message buffers.
“FlexRay is rapidly becoming the de facto standard for high-speed in-vehicle networking,” said Juergen Weyer, vice president and general manager of Freescale’s transportation business in Europe. “As a founding member of the FlexRay Consortium, Freescale has made it a priority to proliferate this network protocol. The combined availability of integrated and stand alone products gives Freescale the opportunity to offer customers a choice with FlexRay devices, which was previously unattainable within the industry.”
The MFR4300 and MC9S12XFR are available in sample quantities. Freescale declined to give pricing for the devices. For other information about this product and available services and support, visit www.freescale.com/flexray.