Freescale announces 32-bit Qorivva microcontrollers for automotive applications
Freescale Semiconductor has announced its next-generation 32-bit MCUs designed specifically for automotive applications. The Qorivva microcontroller (MCU) families, based on Power Architecture® technology, are built using a unique 55 nanometer (nm) non-volatile memory (NVM) process for improved power efficiency and cost effectiveness.
Freescale said the Qorivva MCU families address key challenges for the automotive market, including the need for increased performance, new safety requirements and enhanced security features. Reza Kazerounian, senior vice president and general manager of Freescale’s Microcontroller Solutions Group, said the new families range from simple, low-cost, single-core controllers up to triple- and quad-core variants.
Technology trends in the automotive industry include active vehicle safety (in addition to the traditional passive safety systems) and electrification of the powertrain.
Freescale said the increasing complexity of new automotive electronic systems is leading to rapidly increasing requirements for MCU performance, making multicore processing a necessity for both safety and performance. Safety mandates around the world continue to increase, with many requiring fault-recognition systems and even fault tolerance, for braking, steering, powertrain and some of the latest advanced driver assistance systems.
MCUs with multiple cores help build redundancy into the system for the fault monitoring and distributed control required by safety-critical applications. Freescale’s design process documents MCU features and functions so automotive manufacturers have the necessary, detailed information during the required safety certification processes.
At the same time, as complexity continues to grow, reducing power consumption is quickly becoming critical, as up to 100+ electronic control units require current to function within the vehicle.
Qorivva MCUs feature configurable peripheral sets such as flexible timers and motor control systems. Digital signal processing capabilities provide additional functionality. Benefits and features of the new 55 nm Qorivva MCUs include:
- increased processing speeds that allow more complex control algorithms and features
- increased on-chip memory content (flash and RAM) to significantly reduce the need for off-chip memory
- intelligent peripheral sets to drive complex control systems, such as transmission solenoids, complex injectors and electric motors, with minimal overhead from the microprocessor core
- improved, embedded sensor interfaces to allow simple connection to next-generation automotive sensors
- high-speed analog-to-digital converters designed to meet the differing needs of the latest interfaces.
Solutions tailored for specific applications
Qorivva MCU families target specific automotive applications:
- Body and Security family – features low power consumption for “always on” systems; advanced vehicle networking with full connectivity offerings (LIN, CAN, MOST, FlexRay™ and Ethernet); and encryption for advanced vehicle network security
- Safety and Chassis family – includes multicore advanced safety architecture with fault monitoring and event recording, as well as correction systems, for maximum protection, building toward the future fault-tolerant systems needed for fully autonomous vehicles
- Powertrain and Hybrid family – created for maximum computing, it features high-performance multicore MCUs with advanced motor control peripherals for hybrid vehicles and high-precision analog interfaces and digital communications links to analog sensors. To meet the requirements of next-generation powertrain systems, many devices in this family will also feature Freescale’s advanced safety architecture.
Each Qorivva MCU comes with a full run-time software solution, including AUTOSAR MCAL driver suites and AUTOSAR real-time operating system for single-core and multicore MCUs. Qorivva MCUs also are supported by development tools, including high-performance compiler support and multicore debuggers from Freescale development partners and Freescale’s own CodeWarrior tool set.
Freescale’s deep roots in the automotive electronics industry are apparent in its involvement with industry consortia. Freescale is a founding member of the DSI, FlexRay and LIN consortia, a premium member of AUTOSAR and an active member of the PSI5, JASPAR and GENIVI consortia. Freescale’s Power Architecture products are also supported by its global system labs and software customization services.
The new Qorivva MCU families built on 55nm process technology are planned for availability in early 2012.
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