Abstract
This paper reviews the design challenges that current and future processors must face with stringent power limits and high frequency targets, and the design methods required to address the continuing system integration trends. This paper then describes the implementation of a first-generation CELL processor and the design methods used to overcome the above challenges. A CELL processor consists of a 64 bit power architecture processor coupled with multiple synergistic processors, a flexible IO interface, and a memory interface controller that supports multiple operating systems including Linux. This multicore SoC, implemented in 90nm SOI technology, achieved a high clock rate by maximizing custom circuit design while maintaining reasonable complexity through design modularity and reuse.
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