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GCELL in def

afefafef over 15 years ago

I want to know meaning of GCELL in def.file.

is it Grobal routing cell?

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BobD over 15 years ago

Do you have access to Sourcelink? Here's a pointer to the LEF/DEF Language Reference that describes what a GCELL i:
http://sourcelink.cadence.com/docs/files/Release_Info/Docs/lefdefref/lefdefref5.7/DEFSyntax.html#960924
Yes, GCELL is related to routing, but typically users aren't supposed to have to alter it:
"Typically, the GCELLGRID is automatically generated by a particular router, and is not manually created by the designer."
I've never had to alter the GCELL section of a DEF in my years working with Cadence tools. Is it giving you trouble somehow?
Hope this helps,
Bob
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BobD over 15 years ago

Do you have access to Sourcelink? Here's a pointer to the LEF/DEF Language Reference that describes what a GCELL i:
http://sourcelink.cadence.com/docs/files/Release_Info/Docs/lefdefref/lefdefref5.7/DEFSyntax.html#960924
Yes, GCELL is related to routing, but typically users aren't supposed to have to alter it:
"Typically, the GCELLGRID is automatically generated by a particular router, and is not manually created by the designer."
I've never had to alter the GCELL section of a DEF in my years working with Cadence tools. Is it giving you trouble somehow?
Hope this helps,
Bob
Cancel
Vote Up 0 Vote Down

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