摘要
通过分析CTS时钟树与鱼骨型时钟树的特点,基于传统鱼骨型时钟容易出现破坏原有设计的逻辑结构的情况,采取至少保留两级门控时钟的结构,在特定点作鱼骨型时钟网络,结合设计需求,使用两种不同的与CTS时钟树相结合的点接鱼骨型时钟网络设计方案.在相同条件下,发现点接鱼骨型时钟网络在时钟延迟上比CTS少了47%,而功耗也降了18%,功能验证方面较于传统鱼骨型时钟更为稳定.
On the analysis of characteristics of the CTS and fishbone,and based on the situation that traditional fishbone prone to destroy the logical structure of original design,thus reserve the structure of 2levers ICGs at least,bulid fishbone at specific points in clock network.According to the design requirements,there are two different new means of fishbone clock network combination with CTS.Under the same conditions,the clock delay in fishbone built on clock network points is less 47% than CTS,power consumption also reduce by 16%,and function verification is more stable than traditional fishbone.
出处
《微电子学与计算机》
CSCD
北大核心
2016年第7期11-14,共4页
Microelectronics & Computer
基金
江苏省产学研基金(BY2013018)
关键词
时钟树综合
功耗
时钟延迟
CTS
鱼骨时钟
clock tree synthesis
power consumption
clock delay
CTS
Fishbone clock
