set_disable_timing

set_disable_timing是一种约束命令，用于禁用特定路径的时序分析。它通常用于要求某个库单元之间的时序关系不被考虑。例如，使用set_disable_timing -from cell.输入 -to cell.输出可以禁用从输入到输出的时序路径的分析。这在一些特定情况下是有用的，比如对于异步端口之间的时序关系，因为这些端口没有时钟，时序无法分析相关的路径。\[3\]

与set_false_path相比，set_disable_timing更加具体和局部化。set_false_path是一种全局的时序例外命令，用于覆盖一个或多个周期的时序关系。如果一个例外是set_false_path，而另一个例外不是，那么set_false_path具有更高的优先级。\[1\]

如果需要解除set_false_path的影响，可以使用reset_path或reset_design命令。另外，可以使用report_timing_requirements命令列出所有的point-to-point例外，以便进行进一步的分析。\[5\]
#### 引用[.reference_title]
- *1* [DC综合基本概念-timing exception:set_false_path,set_disable_timing,set_multicycle_path](https://blog.csdn.net/weixin_52822919/article/details/129998679)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-99b5c134546dd4fed731a53263024813.142^v90^control_2,239^v3^control"}} ] [.reference_item]
- *2* [IC基本知识学习](https://blog.csdn.net/weixin_43755290/article/details/107940622)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-99b5c134546dd4fed731a53263024813.142^v90^control_2,239^v3^control"}} ] [.reference_item]
- *3* [set_disable_timing和set_data_check，相关一条efuse时序违反路径的梳理。](https://blog.csdn.net/u011729865/article/details/120621951)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-99b5c134546dd4fed731a53263024813.142^v90^control_2,239^v3^control"}} ] [.reference_item]
- *4* [set_false_path 与 set_disable_timing 的区别](https://blog.csdn.net/u011729865/article/details/119959417)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-99b5c134546dd4fed731a53263024813.142^v90^control_2,239^v3^control"}} ] [.reference_item]
- *5* [DC综合基本概念-timing exception:set_false_path,set_disable_timing,set_multicycle_path](https://blog.csdn.net/weixin_52822919/article/details/129998679)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-99b5c134546dd4fed731a53263024813.142^v90^control_2,239^v3^control"}} ] [.reference_item]
[ .reference_list ]