How can I deal with the Calibre xRC encrypted rule files?

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    How can I deal with the Calibre xRC encrypted rule files?

    Rule files from xCalibrate Rule File Generator v2007.4 and later releases contain encrypted content.
    Certain adjustments are needed to the output rules from xCalibrate to address specific needs.
    How can we make such adjustments if the content is encrypted?
    Can we get a decryption tool for this purpose?

     

     

    The v2007.4 release rule files from xCalibrate Rule File Generator are encrypted
    in order to protect both foundry and Mentor Graphics proprietary Intellectual Property. 

    Mentor Graphics will not be providing a decryption tool.

    In releases prior to v2007.4 there were several goals that customers sought to achieve
    by making adjustments to the rule files generated by xCalibrate.

    Each of these goals can be achieved through other means provided by recently added
    capabilities to the Calibre xRC product.

    These goals and the means to achieve them are summarized as follows:

     

     


    [1]  Need to align layer names between the LVS part of the rules and the extraction part of the rules.

            The following SVRF rule file statement is intended for this purpose and its use
            in this regard is described in detail in the following Application note:

                     PEX ALIAS  . . .

                     AppNote:  MG575533   Working with Encrypted PEX Ruledecks
              

    Starting with release 2010.4, the PEX ALIAS statement is replaced with the PEX MAP rule file statement.


    PEX ALIAS is still supported through newer product versions.

    Please consult the SVRF user manual for more information about differences between PEX MAP and PEX ALIAS.

     

     

     

    [2]  Need to define multiple ground regions in the design.

             Use the following SVRF statement to address this need:

                     PEX GROUND LAYER   . .

     

     

     

    [3]  Need to disable certain capacitance effects for certain layers

           Use the following SVRF statement to address this need:

                      PEX IGNORE CAPACITANCE    . . .

    Please consult the SVRF Manual for complete details on the syntax and use of this functionality.