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    DFT Reset Constraints Handling in Spyglass DFT SGDC

    Hi all,

    I have a problem in defining RESETs in Spyglass DFT flow. Can any body point to me the correct way of defining the Resets in the flow.

    Thanks

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    Re: DFT Reset Constraints Handling in Spyglass DFT SGDC

    Hi,

    Have you tried using below for defining resets in Spyglass DFT?

    reset -name "scan_rstn" -value 0
    test_mode -name "scan_rstn" -value 1 -scanshift'

    Hope it helps!

    -Shalin



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  3. #3
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    Re: DFT Reset Constraints Handling in Spyglass DFT SGDC

    Thanks Shalin.

    The below update has been done in SGDC, it helped in shift violations but not in capture violations.
    Still I am getting violations in Capture - "Reset/Set to XXX flops is not controlled in Capture Mode"

    Reset Scheme is as below -
    IO --> PAD --> Scan Mux --> Flop

    Now I have defined the constraints as below -
    reset -name "PAD.scan_rstn" -value 0
    test_mode -name "PAD.scan_rstn" -value 1 -scanshift'

    Still the issue in Capture Mode persists.



    Quote Originally Posted by shalin mandiwala View Post
    Hi,

    Have you tried using below for defining resets in Spyglass DFT?

    reset -name "scan_rstn" -value 0
    test_mode -name "scan_rstn" -value 1 -scanshift'

    Hope it helps!

    -Shalin



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