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 how to define scan chains in RC  

Last post Tue, Aug 20 2013 7:39 AM by grasshopper. 1 replies.
Started by tanyacool 20 Aug 2013 03:32 AM. Topic has 1 replies and 4912 views
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  • Tue, Aug 20 2013 3:32 AM

    • tanyacool
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    • Joined on Thu, Oct 4 2012
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    how to define scan chains in RC Reply

     Hi, 

     How to define the scan chains in RC and how to prevent the broken chains .

    Tha basic question points to on how prevent the scan inputs of the scanable flops to get not tied up to 0.

     

    Thanks 

    Tanyacool

    • Post Points: 20
  • Tue, Aug 20 2013 7:39 AM

    • grasshopper
    • Top 25 Contributor
    • Joined on Thu, Jul 17 2008
    • Chelmsford, MA
    • Posts 242
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    Re: how to define scan chains in RC Reply

    Hi Tanvi,

    The DFTuser guide is probably the best place to get the question answered. Plenty of examples and all the details an email cannot capture. 

    As per the SI connected to 0, it will be connected to the SO/Q of another flop upon execution of connect_scan_chains if your chains are properly configured. In fact, default is loopback and not connected to 0 so an SI connected to zero may be flagging other issues in your design or scripting

     gh-

     

    • Post Points: 5
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Started by tanyacool at 20 Aug 2013 03:32 AM. Topic has 1 replies.