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how to create parameter passing symbol?

coiroibo

Hi,

Is there a procedure doc on how to create parameter passing symbol (for an inverter as an example)?

I'm trying to create a standard inverter which can be called with different transistors' sizes.

Thank you.

Coi 

Parents

  • Hi Coi,

    You are probably interested in using the pPar() parameter passing capability.  Here's an excerpt from the documentation:

    Passed Parameter Value of One Level Higher: pPar()
    When a parameter expression must depend on the value of a passed parameter, use the pPar function.

    pPar( "CDF_parameter_name" )

    The value of this expression is the value of the passed parameter.

    For example:

    pPar("vss")

    value of the "DC Voltage" parameter on the v27 instance in the aExamples opamp schematic is specified for the aExamples lowpass schematic as 15.
    When you create new symbols using automatic symbol generation (the Create Cellview - From Cellview command in the Schematic window), the system creates component parameters for the parameters you defined with pPar. The following illustration gives an example of the automatic symbol generation process.
    During netlisting, the pPar expression is substituted by the name of the parameter...

     

    I hope this helps,

    regards,

    Lawrence.

Reply

  • Hi Coi,

    You are probably interested in using the pPar() parameter passing capability.  Here's an excerpt from the documentation:

    Passed Parameter Value of One Level Higher: pPar()
    When a parameter expression must depend on the value of a passed parameter, use the pPar function.

    pPar( "CDF_parameter_name" )

    The value of this expression is the value of the passed parameter.

    For example:

    pPar("vss")

    value of the "DC Voltage" parameter on the v27 instance in the aExamples opamp schematic is specified for the aExamples lowpass schematic as 15.
    When you create new symbols using automatic symbol generation (the Create Cellview - From Cellview command in the Schematic window), the system creates component parameters for the parameters you defined with pPar. The following illustration gives an example of the automatic symbol generation process.
    During netlisting, the pPar expression is substituted by the name of the parameter...

     

    I hope this helps,

    regards,

    Lawrence.

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