The Design And Realization Of Multi-core Soc Platform For Media Applications

In the last decade, VLSI production for media field, especially video/audiao codec such as H.264/AVC, Ogg/Vorbis, has been the main module of consuming electronics. The SoC design methodology began to be instead of typical ASIC design flow, for the efficiency improvement, VLSI cost decreasing, to be the one of most significant design flow. However even the SoC cannot solve the high performance codec standard's extremely complex computing problem, more core or accelerator need to be assemblied in the platform, which is called multi-Processor SoC Architecture. For the reason of application's especial computing task, heterogenous multi-core with the customed instruction set, IP core, bus, multicore communication mechanism has the optimized performance of application and general tasks.This thesis studied the typical highend audio/video codec standards as the main VLSI application, H.264/AVC as the leader of video codec techonology nowadays, has the more efficient compression, robust ability and network availability than H.263; Ogg/Vorbis as the open source audio codec, has the more efficient compression than MP3. We design and implement a reasonable SoC based on the Csky Co.&ZJU self-IP CK510 CPU core, Spock DSP and related computing, interface IP, VLSI accelerator, communication assistant module, which is named Gemini heterogenous DualCore SoC platform for Ogg/Vorbis codec. With the emulation and test under the result chip, we complete the fluent audio decoder and play task in 50M frequency system.The platform also has fine expansibility and scalability, so we can repot it into video design. Dual core system has affluent multicore communication mechanism support, we can improve the parallelism and decreasing its commucation latency based on the experiment, so that we prepare for the H.264 MPSoC implemention.