====== DRC ======


===== - Clock Rules (C Rules) =====

==== - C1 ====
When all clocks are at their off state as defined with the add_clocks command, all clock inputs (including sets and resets) of scan and non-scan cells must be at their off state. \\
For non-scan cell violations, the tool converts these to <color #ed1c24>TIEX</color>.

注意： 要定义成同步时钟。