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Custuom Clock Mesh

KVBABU

Hi All,

 Iam working on complex design which requires tight skew control. So, I decided to implement clcok mesh as show in the

attachement, depending the floorplan and logic of design . 

Regarding the Mesh structure: 

In attached figure, " root " is the clock mesh root point and from the nodes

like A, B, C, D, we are trying clock nearby module similar to clcok tree. The central spine is a multidriven net.

1 ) The thing is , i could not judge in to which kind of mesh my structure falls and how to design a clock mesh specification file for this .

 2) After doing this, iam planning to dump spice and compare the results of ecounter ultra sim and hspice. But, i dont know whether i can do the simulation for multidriven nets.

 Please help me in above couple of ascpects.

Regards,

K.VISWANADH BABU

KVB.zip

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