Media Alert

03 May 2006

Keil Announces C251 Version 4

Plano, TX: Keil is pleased to announce C251 Version 4. C251 supports all variants of the 251 family of microcontrollers including the latest IP cores from Dolphin. Version 4 is now based on the popular µVision3 IDE, contains several compiler enhancements, and includes complete simulation for all popular 251 devices and IP cores.

The improvements include:

• New register allocation method in the C251 compiler that enhances the overall performance.
• Several code optimization when using a mixture of char/int/long data types.
• Enhancments with bit-field operations.
• µVision3 based context sensitive on-line help in the IDE and configuration dialogs.
• Enhancements in the µVision3 Configuration Wizard and Logic Analyzer.

Customers with valid software maintenance agreements may download the update. For more information, refer to the Version 4 Release Notes.

About Keil

Keil, an ARM^® company, makes C compilers, macro assemblers, real-time kernels, debuggers, simulators, integrated environments, and evaluation boards for ARM7/ARM9/Cortex-M3, XC16x/C16x/ST10, 251, and 8051 microcontroller families. Products available from Keil include embedded development tools, evaluation software, product updates, application notes, example code and technical support. More information on Keil is available at http://www.keil.com.

About ARM

ARM [(LSE:ARM); (Nasdaq:ARMHY)] designs the technology that lies at the heart of advanced digital products, from wireless, networking and consumer entertainment solutions to imaging, automotive, security and storage devices. ARM's comprehensive product offering includes 16/32-bit RISC microprocessors, data engines, 3D processors, digital libraries, embedded memories, peripherals, software and development tools, as well as analog functions and high-speed connectivity products. Combined with the company's broad Partner community, they provide a total system solution that offers a fast, reliable path to market for leading electronics companies. More information on ARM is available at http://www.arm.com.

ARM and ARM Powered are registered trademarks of ARM Limited. Keil and ARM7 are trademarks of ARM Limited. All other brands or product names are the property of their respective holders. "ARM" is used to represent ARM Holdings plc; its operating company ARM Limited; and the regional subsidiaries ARM INC.; ARM KK; ARM Korea Ltd.; ARM Taiwan; ARM France SAS; ARM Consulting (Shanghai) Co. Ltd.; ARM Belgium N.V.; AXYS Design Automation Inc.; AXYS GmbH; ARM Embedded Solutions Pvt. Ltd.; and ARM Physical IP, Inc.