set_isolation的选项-source 和-sink如何理解啊？

hjacky2010

我看manpage上写的是如下描述，意思是这样的吗？
如果一条跨PD的net，PD1中的driver cell的supply set是SS1，PD2中的load cell的supply set是SS2，那么我用set_isolation -source SS1 -sink SS2, 就可以插入一个isolation，至于这个isolation的方向，到底是isolation哪个PD的关断影响，这个是tool自己考虑power state table的，不需要参数设定？
       o The -source option specifies a supply set name. The isolation  strat-
         egy  applies  only  to  the domain-crossing nets that are driven by a
         cell powered by the specified supply set.

       o The -sink option specifies a supply set name. The isolation  strategy
         applies  only  to the domain-crossing nets that fan out to cells pow-
         ered by the specified supply set.

         You can use both the -source and -sink options to restrict the inser-
         tion  of  isolation  cells  to only the domain-crossing nets that are
         driven by a cell powered by a specified supply set and that  fan  out
         to cells powered by a different specified supply set.

       o  The -diff_supply_only option, when set to true, applies the strategy
         only to the domain-crossing nets in which the  driver  and  receivers
         are  powered  by  different  supply sets or supply nets. This setting
         prevents isolation when the driver and receiver  cells  use  matching
         supplies.  The  default is false, meaning no restriction on isolation
         based on matching driver and receiver supplies.

hjacky2010

有人知道是这样子的吗？

494693243

楼主知道答案了吗

chenbin_016

同问