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What's the difference between 'all' and 'allpub' in the save options form of ADE L?

Cambridge Lv

Hi,

I need help on several questions:

1, What's the difference between 'all' and 'allpub' in the save options form of ADE L? In the Cadence Help, I see that the difference is 'Voltage from an internal node in the device model or a Verlog-A module.', so what does this exactly mean? How to check the result of this entry?

2, No matter which I choose, 'all' or 'allpub', the simulation is always running over the whole circuit, and the result would be the same, am I right?

Thanks!

Parents
  • Andrew Beckett

    This is a spectre choice. The "allpub" choice means all signals that are "normally useful" - so this means all voltages at all external pins of devices. When you pick "all" it adds saving of some internal nodes - so transistors may have internal nodes the other side of the drain, source, gate resistances which aren't usually that helpful. It also saves internal nodes within VerilogA modules. Usually "allpub" is sufficient.

    It does not affect what is simulated, just what signals are saved.

    Andrew.

Reply
  • Andrew Beckett

    This is a spectre choice. The "allpub" choice means all signals that are "normally useful" - so this means all voltages at all external pins of devices. When you pick "all" it adds saving of some internal nodes - so transistors may have internal nodes the other side of the drain, source, gate resistances which aren't usually that helpful. It also saves internal nodes within VerilogA modules. Usually "allpub" is sufficient.

    It does not affect what is simulated, just what signals are saved.

    Andrew.

Children
  • Cambridge Lv
    in reply to Andrew Beckett

    Thank you for your reply.

    Cambridge

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