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Floorplan-memory placement..

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Nantha

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Hi all,

Right now i'm doing floorplanning.. Is it possible to rotate macro - 90 degree? How to conform this with LEF.?


regards.
Nantha
 

lostinxlation

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Ask your fab. They might impose the rule that poly orientation needs to be uniform for the late technology.
 

richtbiscuits

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You can also read your LEF file and look for the line "SYMMETRY". If this has the entry "R90" then you can rotate the object.
 

Nantha

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@phoenixpavan: I'm using SOCE...


@lostinxlation: I think they must be noted in library... i wanna know the way how to find this details in lef.... ;)


@richtbiscuits: Ya, it's right. i've already seen that, It has R90. If R90 means we can rotate only 90degree or MX90, R180,270.....????


Thanks a lot for replies.... ;)
Nantha
 

GI

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Ni Nantha,

As richtbiscuits stated, inside LEF file you'll see SYMETRY statement. Here are what they mean;

SYMMETRY X ; #Can flip about the X axis
SYMMETRY X ; #Can flip about the Y axis
SYMETRY R90 ; #Can rotate 90 degrees

BR,
Gokhan
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