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2022-07-01 07:30:00 【1615549892】



cell:器件资源,包含LUT\reg\DSP\memory blocks\IO
edge path:port to pin 和 pin to port 和 pin to pin
clock path:port | generate clock pin to reg pin
data path:port | reg data output pin to reg din pin | port
asynchronous path :asynchronous reset or asynchronous clear
有1个setup检查:
本次launch edge 为参考,分析离本次launch edge 最近的上一个时钟沿。
有2个hold检查:
first检查 :本次 launch edge 不会被上一次的 latch edge 采样到。
second检查:本次 latch edge 不会被下次 launch edge 采样到。
recovery 检查:
下一个时钟沿之前,clear信号最小的稳定时间。
removal
下一个时钟沿之后,clear信号最小的稳定时间。

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