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  3. Do you have issues using multibit flops

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Do you have issues using multibit flops

AntonioL
AntonioL over 13 years ago

 Hi All,

I used multibit flops (dual and quad) for my last synthesis run and when I have 1st_mapped_Gate2Gate_with_multibit_flops Conformal runs I have a lot of not-equivalent points due to them.

I asked to Cadence support for this and they answered me that my netlist had missing "CDN_MBIT_" prefix for multibit flops.

I regenerated my netlist and I had the same issues.

is there someone which has the same problems?

Do you use some particular commands such as set_multibit_option or others?  

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  • tstark
    tstark over 13 years ago

    Hi, Antonio.

    Did you find a solution? If not, can you give more details on the non-eq points (e.g. bad mapping, etc.)?

    set_multibit_option can help with mapping but there can be various issues with multi-bit flops that may require special handling. I think the first step is understanding how the NEQs are occurring.

     

    -Noel

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  • tstark
    tstark over 13 years ago

    Hi, Antonio.

    Did you find a solution? If not, can you give more details on the non-eq points (e.g. bad mapping, etc.)?

    set_multibit_option can help with mapping but there can be various issues with multi-bit flops that may require special handling. I think the first step is understanding how the NEQs are occurring.

     

    -Noel

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