Green Hills Presents Multilevel Secure Systems at SDR Conference

11/3/2003 - Green Hills Software, Inc. (GHS), the technology leader in real-time operating systems and embedded software development tools, will offer a tutorial on Multilevel Secure Systems (MILS) at the Software Defined Radio (SDR) Technical Conference in Orlando, FL, November 17-19. The presentation by Green Hills Software's James Sorrells, veteran embedded product development engineer, will be built on the company's long-standing mission-critical expertise in SDR technology.

In the tutorial, Sorrells will cover the Software Communications Architecture (SCA) and the application of MILS to dramatically reduce system costs. The tutorial will cover the implications of embedded systems, real-time operating systems (RTOS), middleware/object request broker (ORBs), security, partitioning, memory management unit (MMU) and development tools.

A MILS operating system allows designers to manage secure and non-secure data on a single processor. This alternative has profound design implications for SDRs that presently rely on physically separating data on multiple processors. MILS can lower the number of CPUs, resulting in a reduction in cost, weight, power consumption and heat dissipation. Sorrells' talk will focus on how to take advantage of these design alternatives.

A conference sponsor, Green Hills will demo its INTEGRITY RTOS that is fully compliant with software communications architecture v2.2 POSIX standards. The INTEGRITY RTOS and accompanying MULTI Integrated Development Environment (IDE) are currently used for the US Army's Joint Tactical Radio Systems (JTRS) Cluster 1 SDR system.

The Cluster 1 radio will be deployed in Army rotary platforms, Army ground-based vehicles and Air Force tactical air control party ground vehicles. The INTEGRITY RTOS is also being used on the Air Force's new Family of Advanced Beyond Line-of-Sight Terminals (FAB-T) and is proposed for use in other upcoming SDR contracts.

INTEGRITY & MULTI Demonstrate Superiority in SDR Applications
Green Hills has an impressive history of being selected for SDR systems used on the battlefield to improve critical communications between soldiers, support aircraft, surveillance systems and other elements. The JTRS Cluster 1 radios will work with waveforms of current radios, enabling Army personnel to establish direct communications with current tactical radio systems while providing the capability to easily support any waveform characteristics that may be developed in the future. The INTEGRITY RTOS multi-channel operation enables data from disparate and incompatible sources to be received at a single point and integrated in ways that were not previously possible.

Green Hills Software's MULTI IDE has also been selected for JTRS and FAB-T code development providing a feature-rich suite of tools to assist developers in meeting aggressive software development schedules. The rapidly growing number of Green Hills project wins demonstrates the increasing recognition of the INTEGRITY RTOS and MULTI IDE as proven solutions in the realm of mission-critical communications.

About Green Hills Software
Founded in 1982, Green Hills Software, Inc. is the technology leader for real-time operating systems and software development tools for 32- and 64-bit embedded systems. The royalty-free INTEGRITY RTOS, compilers, MULTI and AdaMULTI Integrated Development Environments and TimeMachine product line offer a complete development solution that addresses embedded systems from the lowest cost consumer products to the most safety-critical aircraft flight systems. Green Hills is headquartered in Santa Barbara, CA, with European headquarters in the United Kingdom.

Green Hills Software, the Green Hills logo, MULTI and INTEGRITY are registered trademarks. AdaMULTI and TimeMachine are trademarks of Green Hills Software, Inc.

North American Sales Contact: Green Hills Software, Inc., 30 West Sola Street, Santa Barbara, CA 93101, Tel: 805-965-6044, Fax: 805-965-6343, Website:, Email: Sales Contact: Green Hills Software Ltd., Dolphin House, St. Peter Street, Winchester Hampshire SO23 8BW, United Kingdom, Tel: +44 (0)1962 829820, Fax: +44 (0)1962 890300, Email:

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