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RTL Compiler: DFT Checks and non controllable/observable I/O

moogyd

Hi,

I am synthesizing a top level digital block that has interfaces to external pads and to a top level analog block.

When I run DFT checks, it assumes that all ports are controllable, which is not the case for the signals from the top level analog block.

Is the an attribute I can apply to these ports to indicate that they are not controllable?

Thanks,

Steven

 

Parents

  • Hi Steven,

    Did you get any solution for your trouble?

    I have a trouble that it seems very close to your.

    I need to include DFT accessibility in design but I will not have access for both input and output ports of digital circuit because they are connected to analog peripherals blocks.

    Is there any command in Encouter Test or RTL Compiler which won't take in account the use of the I/O ports for the test pattern generation? I think it isn't a recommend approach for test, but in my case I need to try it.

    BR,

    Douglas Foster

Reply

  • Hi Steven,

    Did you get any solution for your trouble?

    I have a trouble that it seems very close to your.

    I need to include DFT accessibility in design but I will not have access for both input and output ports of digital circuit because they are connected to analog peripherals blocks.

    Is there any command in Encouter Test or RTL Compiler which won't take in account the use of the I/O ports for the test pattern generation? I think it isn't a recommend approach for test, but in my case I need to try it.

    BR,

    Douglas Foster

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