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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, I believe you are looking for attribute dft_controllable as described below rc:/> get_attr -h *controllable* * attribute category: dft attribute name: controllable category: dft (controls design for test) object type: test_clock access type: read-write data type: boolean default value: false help: Whether the test clock is controllable in test mode. attribute name: dft_controllable category: dft (controls design for test) object type: pin access type: read-write data type: string default value: help: In test mode the output pin can take either the non_inverting or inverting value of the input pin. attribute name: dft_include_controllable_pins_in_abstract_model category: dft (controls design for test) object type: root access type: read-write data type: DftIncludeControllablePinsEnum default value: allmodes help: Enable writing out controllable pins in abstract model. hope this helps, gh-
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  • Hi Steven, I believe you are looking for attribute dft_controllable as described below rc:/> get_attr -h *controllable* * attribute category: dft attribute name: controllable category: dft (controls design for test) object type: test_clock access type: read-write data type: boolean default value: false help: Whether the test clock is controllable in test mode. attribute name: dft_controllable category: dft (controls design for test) object type: pin access type: read-write data type: string default value: help: In test mode the output pin can take either the non_inverting or inverting value of the input pin. attribute name: dft_include_controllable_pins_in_abstract_model category: dft (controls design for test) object type: root access type: read-write data type: DftIncludeControllablePinsEnum default value: allmodes help: Enable writing out controllable pins in abstract model. hope this helps, gh-
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