What are the different types of CTS?

[p.sivakumar]

types of CTS

Hi

Can any body explain different types of CTS ?What are the advantages and disadvantages ?

Thanks
Sivakumar

 

[shankarmit]

Re: types of CTS

I know two types of CTS

one is H-tree type where from source it forms H-tree and spreads..

other is cluster type.. but not detail in it.. divides region and source clock a cluster and distributes,..not much aware of it..

nowdays mostly cluster algorithm is used for CTS..

Regards
Shankar

 

[wwfhm2002]

types of CTS

shankarmit gives a description from on side. And I think it maybe another CTS types: global skew synthesis, local skew synthesis and useful skew synthesis.

Global skew : consider the skew between all registers

Local skew: only consider the skew between registers which has timing relation. Obviously this type is more reasonable.

Usful skew: normal CTS should has least skew, but here CTS can larger the skew to fix setup time violation.