Atheros Licenses Tensilica's Xtensa Processor Core

Santa Clara, Calif. – September 26, 2005 – Tensilica, Inc., today announced that Atheros Communications, Inc. (NASDAQ: ATHR), a leading provider of advanced wireless solutions, has licensed the Xtensa configurable and extensible processor core for future product designs.

"We selected Tensilica's Xtensa processor because of its high-performance, low power and small size which are ideal for a wide range of very compact wireless applications," said Rick Bahr, VP of Engineering for Atheros Communications. "Xtensa's configurable and extensible microprocessor core provides Atheros and our customers with a high level of design flexibility required to satisfy the growing array of end-product application requirements."

“We are excited to be working with an innovative company like Atheros,” stated Steve Roddy, Tensilica’s vice president of marketing. “This is another good example of the growing momentum for the Xtensa architecture.”

About Atheros

Atheros Communications is a leading developer of semiconductor system solutions for wireless communications products. Atheros combines its wireless systems expertise with high-performance radio frequency (RF), mixed signal and digital semiconductor design skills to provide highly integrated chipsets that are manufacturable on low-cost, standard complementary metal-oxide semiconductor (CMOS) processes. Atheros technology is being used by a broad base of leading customers, including personal computer, networking equipment and handset manufacturers. For more information visit www.atheros.com or send email to info@atheros.com.

About Tensilica

Tensilica was founded in July 1997 to address the growing need for optimized, application-specific microprocessor solutions in high-volume embedded applications. With a configurable and extensible microprocessor core called Xtensa, Tensilica is the only company that has automated and patented the time-consuming process of generating a customized microprocessor core along with a complete software development tool environment, producing new configurations in a matter of hours. For more information, visit www.tensilica.com.