请教版主高手，急！
时间：10-02
整理：3721RD
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encounter CTS中的Leaf pin,exclude pin,through pin的各意思，各在什么情况下使用。谢谢
这些司空常见的到处都能搜
ediicccomments
Leaf pin,stop_pinclock sinks in CTS , normally reg's ck pins
exclude pinexclude_pinnon-sink pins , no need to balance cts
through pinnon_stop pingo-through pins , like divider pins , let the clk go through ,not stop
macromodelfloat_pinsink pins wth intentional delay, not 0 , for useful skew control