PAR报告中常用LUT-FF对的数量的较高比率是否意味着良好的设计？

@ keivnlee_1002，
检查以下论坛帖子，其中包含Avrum的goodUtilization报告说明。
这适用于Vivado，但同样适用于ISE：
https://forums.xilinx.com/t5/Implementation/Vivado-utilization-report/td-p/317517
还检查一下：
https://forums.xilinx.com/t5/Welcome-Join/What-is-fully-utilised-LUT-FF-pairs/td-p/398823
--Syed
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以下为原文

@keivnlee_1002,

Check the following forum thread which has good Utilization report explanation by Avrum. This is for Vivado but same is applicable for ISE:
https://forums.xilinx.com/t5/Implementation/Vivado-utilization-report/td-p/317517
 
Also check this: 
https://forums.xilinx.com/t5/Welcome-Join/What-is-fully-utilised-LUT-FF-pairs/td-p/398823
 
--Syed
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