Interview question – place and route

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bx14zz

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Hi,

Friends, I am new to this area and I have a question for you.

If I will receive a full place and route (after routing and all the procedures) design :

1) How do I know which layers any macro in my design used?

2) If I would ask this question before the place and route procedure begin how the answer to question no 1 would have changed?

Thank,

Tsahi
 

My friend i think this information is available in the LEF (Technology file ) before u start
and after u finish u can dump out a DEF which can also have this info

PLease anybody correct me if i am wrong


regards
natg
 

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    bx14zz

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hi natg9,
Lef contains information about the all available layers, but user can restrict to some of the layers only, i think the second option to dump out the DEF and can check about the max layer used.
 

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    bx14zz

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