Warning: Power state of driver pin u_ctrl/dout1_reg/Q (related supply net (VDD12G,VSS)) is less always on or unrelate...

yuming_ziyi · 发表于 2023-1-26 21:15:21

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UPF中插入ISO后进行DC综合，在进行check_mv_design -verbose时Power Domain Checks有Warning，详细信息如下：
Warning: Power state of driver pin u_ctrl/dout1_reg/Q (related supply net (VDD12G,VSS)) is less always on or unrelated to power state of load pin dout1 (related supply net (VDD,VSS)). Isolation cell is required on net dout1 connecting these pins. (MV-514)

问题：这个Warning的意思是什么？是否影响DC结果？如何消除？求各路大神指点

[求助] Warning: Power state of driver pin u_ctrl/dout1_reg/Q (related supply net (VDD12G,VSS)) is less always on or unrelate...

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