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Low-power DSP architecture meets wide range of wireless standards

Posted: 24 May 2012 ?? ?Print Version ?Bookmark and Share

Keywords:DSP? wireless standards? baseband processing?

Ceva Inc. has launched the CEVA-XC4000, a fully-programmable low-power DSP architecture framework that supports cellular, WiFi, DTV, white space and other communication standards. The architecture uses an innovative instruction set to enable software-based baseband processing which otherwise could only be accomplished with dedicated hardware. It delivers 5X better performance over the company's CEVA-XC323 DSP for LTE-A processing, using only half the power.

The CEVA-XC4000 architecture is offered in a series of six fully programmable DSP cores, offering modem developers a wide spectrum of performance capabilities while complying with the most stringent power constraints. By taking advantage of a unified development infrastructure composed of code-compatible cores, a set of optimized software libraries and a single tool chain, customers can significantly reduce software development costs while leveraging their software investment in future products.

The CEVA-XC4000 architecture incorporates CEVA�s second generation Power Scaling Unit (PSU 2.0) which dynamically supports clock and voltage scaling with fine granularity within the processor, memories, buses and system resources. It also uses Tightly Coupled Extensions (TCE) to deliver inter-connected power-optimized coprocessors and interfaces for the implementation of critical PHY functions, further reducing power consumption. A rebalanced pipeline with low-level module isolation is also highly optimized for power.

The architecture incorporates enhanced system-level mechanisms, queues and interfaces to deliver exceptional performance, realizing faster connectivity, higher bandwidth, lower latency and better PHY control. The architecture offers uncompromising modem quality using two distinct inter-mixable high-precision instruction sets, supporting the most advanced 4x4 and 8x8 MIMO algorithms.

Architectural support
CEVA has also announced complete reference architectures targeting complex communication standards, including LTE-A Rel-10 and Wi-Fi 802.11ac, supporting up to 1.7Gbps, in collaboration with CEVA-XCnet partners mimoOn and Antcor. These reference architectures are complemented with highly optimized software libraries for LTE-A and WiFi.

The CEVA-XC4000 DSP architecture is also supported by CEVA-Toolbox, a software development environment that incorporates Vec-C compiler technology for advanced vector processors, enabling the entire architecture to be programmed in C-level. An integrated simulator provides accurate and efficient verification of the entire system, including the memory sub-systems. In addition, CEVA-Toolbox includes libraries, a graphical debugger, and a complete optimization tool chain named CEVA Application Optimizer. The Application Optimizer enables automatic and manual optimization applied in the C source code.

The first member of the CEVA-XC4000 DSP series is available today for lead customers.

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