Timing Constraints Wizard 時序約束嚮導概述
阿新 • • 發佈:2018-12-21
它分析網表,時鐘網路連線和現有的時序約束,識別設計上缺少的時序約束。
嚮導包括11個頁面涵蓋三類約束:
•時鐘
°主時鐘Primary clocks
°生成時鐘Generated clocks
°轉發時鐘Forwarded clocks
°外部反饋延遲External feedback delays
•輸入輸出埠
°輸入延遲Input delays
°輸出延遲Output delays
°組合延遲Combinatorial delays
•時鐘域交叉
°物理專用時鐘組Physically exclusive clock groups
°無互動的邏輯專用時鐘組Logically exclusive clock groups with no interaction
°有互動的邏輯專用時鐘組Logically exclusive clock groups with interaction
°非同步時鐘域交叉Asynchronous clock domain crossings