Post-CTS clock skew scheduling with limited delay buffering
Post-CTS clock skew scheduling with limited delay buffering
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具有有限延迟缓冲的 CTS 后时钟偏差调度
DOI：
10.1109/mwscas.2009.5236113
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
B. Taskin
中科院分区：
文献类型：
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作者：
Jianchao Lu;B. Taskin
提出的锁定后树 - 合成（CTS）优化方法是在时钟树的叶子上延迟缓冲，以实现有限的时钟偏斜计划。全局监视延迟缓冲的总量以改善电路性能。任何时钟树的综合方法实现的优化表明，拟议的后CTS方法比以前的方法具有优势，并证明了时钟周期的重要趋势比延迟缓冲的大部分上限。通过非常有限的缓冲获得了通过时钟偏斜调度实现的时钟周期改进（约43％的平均改善到10％最大缓冲）。
Proposed post-clock-tree-synthesis (CTS) optimization method is delay buffering at the leaves of the clock tree to implement a limited version of clock skew scheduling. The method suggests the limitation of delay buffering on each clock tree branch as well as a global monitoring of total amount of delay buffering to improve the circuit performance. The delay buffering for non-zero clock skew operation is performed only after the clock sinks in order to preserve the structure and the optimizations implemented with any clock tree synthesis methodology. Experimental results demonstrate the superiority of the proposed post-CTS methodology over previous methods and demonstrate an important trend of clock period improvement over varying upper bounds of delay buffering. It is shown that the majority of the clock period improvement achievable through clock skew scheduling is obtained through very limited buffering (≈43% average improvement through 10% of max buffering).