Asymmetric Multi - Processing Mobile Application Processor MP 211

*System Devices Research Laboratories †NEC Electronics Corporation We propose several techniques of Asymmetric Multi-processing (AMP) for mobile application processors. In our AMP architecture, multiple general purpose processors are integrated on a chip to reduce hardware development period and cost. Our techniques are well considered the role of hardware and software to maximize the benefits of parallel processing. The hardware is carefully designed to enlarge bus bandwidth, shorten memory latency, and reduce power consumption. Our software techniques realize application-level compatibility with single processor and excellent real-time performance with solving multiprocessing issues. Moreover, our novel security techniques enable to execute download non-secure native application. We implemented these techniques on the mobile application processor MP211. Evaluation results show our AMP techniques on MP211 are very useful for future mobile terminals.