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Processors/DSPs  

Android code, improved architecture push DSP capabilities

Posted: 13 Jan 2014  Print Version  Bookmark and Share

Keywords:CEVA  DSP  Android  processor 

CEVA has revealed that it has enhanced the architecture of its TeakLite 4 DSP processor core to cut power consumption and code size. It also features an Android framework to offload performance from the CPU to further reduce system power, noted the company.

The architectural enhancements incorporated into the CEVA-TeakLite-4 v2 include power optimization features to the instruction set architecture (ISA) and power scaling unit (PSU) that facilitate even lower power consumption of up to 20 percent. For further die size optimizations, the latest architecture release enables a reduction in code size of up to 30 percent for key audio and voice codecs, significantly improving overall system cost, stated the firm. Enhancements also include 50 new instructions, improved 64bit data processing support, scalable data bandwidth up to 128bit and a robust system interface that spans from low-power AHB bus to high-performance AXI bus with various master/slave configurations. The CEVA-TeakLite-4 v2 architecture framework is now deployed across the family of CEVA-TeakLite-4 cores, namely the CEVA-TL410, CEVA-TL411, CEVA-TL420 and CEVA-TL421.

The need to support advanced audio and voice functionality in the mobile, consumer electronics and automotive markets continues to expand rapidly as companies adopt new, value-added features such as always-on contextual awareness, active noise cancellation and super wideband voice, all aimed at improving the user experience and differentiating their products. With the release of the CEVA-TeakLite-4 v2 DSP architecture, CEVA has addressed these DSP processing intensive use-cases with further precision and efficiency, while also delivering the highest performance for home entertainment and other advanced HD audio applications.

To further assist customers with system integration of the CEVA-TeakLite-4 DSP cores in Android-based devices, CEVA is providing the Android Multimedia Framework (AMF), a proprietary framework enabling audio tasks to be seamlessly offloaded from CPU to the CEVA-TeakLite-4 DSP, allowing up to eight times in power savings.

- Nick Flaherty
  EE Times Europe





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