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How target nets in a relative delay group are determined in the specctra autorouter?

Neha Anu

Hi,

Is there any specific rule for a net to be specified as a target in a match group?How can a target be explicitly selected in specctra?

Can anyone pls xplain this??

Thanx,

Neha.

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  • tomoo

    I don't know how to determine it in the specctra autorouter.
    However if it is in the constraint manager, I can explain the way.
    Usually, a target in a match group is assigned automatically.
    But if you want to assign the target to a specific net, you can do in the following way.

    Constraint Manager > Relative Propagation Delay > Open a match group > Enter "TARGET" in the "Delta:Tolerance" cell which you want a net to be a target.

    Hope this helps.

    Regards,
    Tomo

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  • tomoo

    I don't know how to determine it in the specctra autorouter.
    However if it is in the constraint manager, I can explain the way.
    Usually, a target in a match group is assigned automatically.
    But if you want to assign the target to a specific net, you can do in the following way.

    Constraint Manager > Relative Propagation Delay > Open a match group > Enter "TARGET" in the "Delta:Tolerance" cell which you want a net to be a target.

    Hope this helps.

    Regards,
    Tomo

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