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LEC - MOS direction and abstract logic error

sacmax

Hi,

I am trying to convert a schematic to RTL and get a logical equivalence between them. The level shifter in the schematic has a couple of nmos and pmos transistors. For one of the transistors, I am getting the error:
"

// Error: Instance 'NM0' in module 'xyz' in Revised is bi-directional.
// Error: Assign MOS direction with ADD MOs Direction command.
// Error: Use automatic logic abstraction with ABStract LOgic command.

"

My company does not have the GXL license so I cant use the above commands. I tried black boxing the level shifter but the circuit at its output fails equivalence. Is there any other way to work around this?

Regards,

sacmax

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