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How can I set bus's direction in spicein?

gaojun

Hi,

I'm using spicein to import cdl netlist in virtuoso 6.1.6. It work well for non bus type IO. But if the IO pin in subckt definitation is bus type, for example input<2:0>, and whether I use *.pininfo input:i or *.pininfo input<2:0>:i or *.pininfo input<2>:i input<1>:i input<0>:i, the schematic could not give this pin the correct direction. How can I fix it?

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  • Andrew Beckett

    That is not a valid CDL netlist. The definition of CDL is covered in various places in the Cadence documentation, including the Cadence PVS Developers Guide.

    The pins of a SUBCKT must follow SPICE conventions of being single-bit.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    That is not a valid CDL netlist. The definition of CDL is covered in various places in the Cadence documentation, including the Cadence PVS Developers Guide.

    The pins of a SUBCKT must follow SPICE conventions of being single-bit.

    Regards,

    Andrew.

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