Freescale Qorivva MPC5777M multicore powertrain MCU for next-generation economy and emissions standards
November 13, 2012 by John Day
Quad-core Qorivva MCU brings high levels of performance, functional safety and security to future engine applications
At electronica 2012 Freescale Semiconductor announced the Qorivva MPC5777M multicore microcontroller (MCU) family. The MCUs are designed to help automakers address regional fuel economy and safety trends by providing performance for a new generation of engine management solutions.
The MPC5777M offers 8 MB of flash and 596 kB of SRAM compared with the MPC5746M, which Freescale introduced earlier this year. That device offers 4 MB of flash and 320 kB of SRAM. At electronica, Freescale also introduced a new low-end MCU, the MPC5744K, with 2.5 MB of flash and 176 kB of SRAM. All three MCU families are based on the same Power Architecture® technology. Customers can scale up or down as their product lines grow and diversify.
Automakers are under increasing pressure from governments and consumers to improve overall fuel efficiency across their fleet and lower polluting emissions. In the U.S., the mileage goal is expected to be 54.5 MPG by 2025. Achieving those goals requires increasingly tight computerized control of the complete engine combustion process.
With new fuel choices, and increasing safety demands primarily driven by electric vehicles, automakers need innovation and creativity to address increasingly complex powertrain platforms. Freescale said the Qorivva MPC5777M will help address these needs by powering traditional diesel and gasoline direct injection systems as well as hybrid electric and plug-in electric vehicles.
Three times the performance – and lower power
The MPC5777M MCU provides three times the performance of Freescale’s Qorivva MPC5674F MCU, which Freescale said has the highest official performance benchmark score in the industry. The new device requires 15% less power to provide the additional performance. According to Freescale, this new level of performance will enable automakers to improve fuel economy and lower emissions simultaneously. With smart on-chip partitioning, the MCU is said to allow virtually instantaneous switching between high-performance and low-power operations, reducing the load on increasingly complex vehicle electrical systems.
The MPC5777M has three Power Architecture e200z7 cores operating at 300 MHz each and one I/O core operating at 200 MHz to increase overall throughput using parallel processing. The new device also includes an on-chip digital signal processor (DSP), Zipwire, 10 sigma-delta analog-to-digital converters (ADCs) and 12 successive approximation register (SAR) converters.
“As the global powertrain market continues to evolve, Freescale is working hard to anticipate our customers’ needs by providing the value and capabilities required for future engine control developments,” said Ray Cornyn, vice president of Global Marketing for Freescale’s Automotive MCU business.
Functional safety and security
Functional safety and security are becoming increasingly important to automakers and system suppliers. The MPC5777M is the newest Freescale SafeAssure functional safety solution and has been defined and developed from the ground up to address the ISO 26262 standard. The MPC5777M allows functional safety technology and ASIL-D compliance to be included in this new generation of powertrain controllers and several key features have been included in hardware to help developers create safe solutions.
With the tremendous amount of data streaming through today’s vehicles, security has become a necessity for automakers to protect their control systems from software attacks. The MPC5777M MCU offers a hardware security module (HSM), which can prevent a hacker from taking control of the engine control unit. In addition, tamper detection protects against unauthorized code changes, power modifications and emissions tampering, which can lead to potentially critical damages to the automotive systems.
To help customers bring their designs to market more quickly, Freescale provides comprehensive enablement solutions for powertrain development, including software libraries and reference solutions with full software and hardware integration. Freescale also offers an extensive suite of advanced development tools from partners such as Green Hills and Lauterbach.
Alpha samples of the MPC5777M MCU are available now. General market samples are planned for Q3 2013. Alpha samples of the MPC5744K are available now, with general market samples planned for availability in 2014.
Freescale SafeAssure program
The Freescale SafeAssure functional safety program is designed to help system manufacturers more easily achieve system compliance with International Standards Organization (ISO) 26262 and International Electrotechnical Commission (IEC) 61508. The program highlights Freescale hardware and software solutions that are optimally designed to support functional safety implementations and come with enablement collateral. For more information, visit www.freescale.com/SafeAssure.