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GigaChip™ Interface Adds Xilinx to its Roster and Launches Website
MoSys and Xilinx to Demonstrate Interoperability at DesignCon 2011

SANTA CLARA , Calif. – January 31 , 2011 – MoSys, Inc. (NASDAQ: MOSY) , a leading architect of serial chip - to - chip communications solutions that deliver unparalleled bandwidth performance for next generation networking systems and advanced system - on - chip (SoC) designs , today an nounced that Xilinx, Inc. ( NASDAQ : XLNX) has joined the Gig aChip Interface, an ecosystem of companies that support the GigaChip Interface . C urrent Interface participants include : MoSys , Altera Corporation, NetLogic Microsystems and Xilinx .

In addition, MoSys announce d the launch of the GigaChip Interface website, which provides information regarding the GigaChip Interface and the GigaChip Interface. The Web address is
http://www.GigaChipInterface.com.

The GigaC hip Interface is a short - reach, low - power serial interface, which enables highly efficient, high - bandwidth, low - latency performance not achievable using currently available serial protocols. Similar to the fundamental performance breakthrough achieved by the move to double data rate (DDR) style interfaces in the late‘90s, MoSys believes the GigaChip Interface represents the next breakthrough in chip - to - chip communications using differential SerDes technology. A 16 - lane GigaChip Interface can replace up to six separate DDR3 parallel interface busses to memory, which represents a bandwidth density performance increase of 4 times, while reducing system power and interface costs by 2 to 3 times . Suc h bandwidth de nsity increases will be required to realize line cards with aggregate throughput beyond 100G , a necessity in future high - end networking systems. The GigaChip Interface has adopted the open CEI - 11 electrical transport standard, making use of this existing e lectrical ecosystem in order to shorten time to market for the introduction of next generation system designs . Through the GigaChip Interface, companies are enabling an entirely new class of low - cost, high - speed, high - performance systems in networking, comp uting and storage markets.

“As the world’s leading provider of programmable solutions, we are pleased to join the GigaChip Interface and plan to support the GigaChip Interface in our FPGAs,” said Sanjay Charagulla , Director, Corporate Strategic Planning at Xilinx . "We see a major trend towards serial chip - to - chip communications and believe the GigaChip Interface provides the efficiency and openness that our customers require."

"We couldn't be more pleased to have Xilinx join the GigaChip Interface to supp ort the proliferation of the GigaChip Interface into next generation networking systems ,” stated David DeMaria, Vice President of Business Operations for MoSys . “Our goal is to revolutionize serial chip - to - chip communications with the GigaChip Interface . T owards that end, we are making the GigaChip Interface an open protocol and encouraging widespread use by potential partners and customers . The GigaChip Interface will facilitate industry - wide adoption and evolution of this protocol.”

At the DesignCon 2011 conference being held from January 31 to February 3 at the Santa Clara Convention Center, MoSys and Xilinx will be demonstrating interoperability between the MoSys Bandwidth Engine ® IC and Xilinx FPGAs using the GigaChip Interface . Demonstrations will be h eld at MoSys’ booth 516 on February 2 and 3 during the expo portion of the conference .

About GigaChip Interface

The GigaChip Interface is an ecosystem of companies collaborating to promote and further the development of the GigaChip Interface, a board - level high - speed serial chip - to - chip communications interface standard for high - speed networking systems . Developed by MoSys, Inc., the GigaChip Interface is an open, CEI - 11 compatible high - bandwidth, low - latency interface for reliable point - to - point communication of fixed - size frames over short distances. For more information, visit http:// www. GigaChipInterface .com.

About Xilinx

Xilinx is the worldwide leader in comple te programmable logic solutions. For more information, visit
http://www.xilinx.com

About MoSys, Inc.

MoSys, Inc. (NASDAQ: MOSY) is a leading architect of serial chip - to - chip communications solutions that deliver unparalleled bandwidth performance for next generation networking systems and advanced system - on - chip (SoC) designs. MoSys' Bandwidth Engine fami ly of ICs combines the company's patented 1T - SRAM® high - density memory technology with its high - speed 10 Gigabits per second (Gbps) SerDes interface (I/O) technology. A key element of Bandwidth Engine technology is the GigaChip(TM) Interface, an open, CEI - 11 compatible interface developed to enable highly efficient serial chip - to - chip communications. MoSys' IP portfolio includes SerDes IP and DDR3 PHYs that support data rates from 1 - 11 Gbps across a variety of standards. In addition, MoSys offers its flag ship, patented 1T - SRAM and 1T - Flash® memory cores, which provide a combination of high - density, low power consumption, high - speed and low cost advantages for high - performance networking, computing, storage and consumer/graphics applications. MoSys IP is pr oduction - proven and has shipped in more than 370 million devices. MoSys is headquartered in Santa Clara, California. More information is available on MoSys' website at www.mosys.com.

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MoSys, 1T - SRAM and 1T - Flash are registered trademarks of MoSys, I nc. The MoSys logo, Bandwidth Engine, GigaChip and the GigaChip logo are trademarks of MoSys, Inc. All other marks mentioned herein are th e intellectual property of their respective owners.

Media Contact:
Katie Olivier
Shelton Group
972-239-5119 x128
kolivier@sheltongroup.com

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Corporate Contact:
Kristine Perham
MoSys, Inc.
408-418-7670
kperham@mosys.com