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[SOLVED] Need explanation about specific part of SDF file

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ebrahimi.khoy

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I am writing a simple SDF parser. In some rare cases I have one timing specifications instead of two. What is the reason?
Example:
Normal case: (IOPATH A1 ZN (0.061:0.062:0.062) (0.056:0.057:0.057))
Strange case: (IOPATH A2 ZN (0.064:0.065:0.065))
 

Hello ,

Pl go through the attached document.(specifically page no : 45,46)
 

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  • SDF Annotator Guide.pdf
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According to this document it means that both rise and fall transitions have same value.
Thanks a lot for your response.
 

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