The DPM (dynamic power management) is an important solution of reducing energy consumption in the system level.

其中动态功耗管理便是一种重要的减少系统范围的能量的方式。

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Energy consumption has became a critical design constrain in many embedded system. High-level power analysis and optimization play important roles in the whole design cycle.

功耗现已成为嵌入式系统设计中一个重要的约束条件，而设计早期在高层所作的功耗评估与优化对整个系统能耗的影响最为显著。

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In this design, a 2-level round-robin arbitration algorithm is chosen to improve system performance, and state machine coding style is also optimized to reduce chip size and dynamic power consumption.

设计中选择了两优先级轮转仲裁算法，以提高系统性能；优化了状态机编码方式，以减小芯片面积和降低动态功耗。

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