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how to tell conformal to ignore certain combination of input

gperry

hi

How can I tell the LEC tool to ignore a combination of Primary input bus in both Golden and revised.

For example in both Golden and revised there is 

input [3:0] data_in

I want LEC not to check the case that data_in[3:0] == 4'b1000

  • Fotios Nt

    Hi,
    Theres no really good way that I know of to do that.
    One way would be to add a (SV) wrapper around your top that just checks if data_in == 4'b1000 and if it does feeds e.g 4'b000 to the top-level inputs

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