Nucleus POSIX Complies with Software Communication Architecture 3.0

2/25/2005 - Accelerated Technology(r), a Mentor Graphics division (Nasdaq: MENT), announced a new version of the Nucleus(r) POSIX kernel that is compliant with the Software Communication Architecture (SCA) version 3.0, a set of standards for deploying and interconnecting the signal processing objects of a software defined radio (SDR) system. The Nucleus POSIX SCA kernel now provides developers of military and aviation communication devices with benefits that include software reusability, system scalability and interoperability and rapid insertion of new technologies into fielded SDR systems.

SCA is a key technology for developing versatile, interoperable SDR systems. The U.S. Department of Defense's Joint Tactical Radio Systems (JTRS) Joint Program provides a family of software programmable radios such as handheld, vehicular, base station (fixed and maritime), airborne and dismounted radios-all designed around the SCA for different military domains.

Developers using the Nucleus POSIX SCA kernel, in conjunction with software such as Common Object Request Broker Architecture (CORBA), CORBA services and the CORBA component model, can reprogram an SDR system so that a single piece of hardware can be configured to meet the needs of situations that include the modern battlefield. For example, a single unit will be able to send or receive multiple different waveforms (or forms of modulation), and operate in different frequency bands, so that it can communicate with virtually any current software radio or legacy (pre-existing) system, and operate with the lowest possibility of detection or interception by unauthorized or unfriendly listeners. In addition to the robust Nucleus POSIX SCA kernel, developers can build their SDR systems quickly using associated middleware including support for memory management unit (MMU), dynamic download (DDL), InterProcess Communication (IPC) and file management software.

"SDR systems are expected to improve the ability to communicate in modern battlefields as well as in other areas where communication abilities can be limited. The new Nucleus POSIX SCA kernel can help embedded system developers meet these needs by offering them flexibility, reliability and high performance to build military communication devices," said Robert Day, director of marketing, Mentor Graphics Embedded Systems Division.

Availability and Pricing
The Nucleus embedded software is licensed with source code and without royalty fees. Available now as an add-on component to the Nucleus PLUS kernel, licenses for the Nucleus POSIX SCA software start at U.S. $2,995. For more information, please contact Accelerated Technology at 800-468-6853 or

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $700 million and employs approximately 3,850 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site:

Accelerated Technology, a division of Mentor Graphics Corporation, is located in Mobile, Alabama with sales offices and distributors worldwide. By providing embedded systems developers with a focus on service, well-documented source code and industry-leading non-royalty-based Real-Time Operating Systems (RTOS) software including modeling software, prototyping tools, kernels, middleware and development tools. AT's suite of products shorten time-to-market and provide a complete solution for engineers. For more information, please visit or e-mail us at

Mentor Graphics, Accelerated Technology and Nucleus are registered trademarks of Mentor Graphics Corporation.

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