shikharmakkar
Junior Member level 1
Hi,
I am studying the basics of dft techniques and is able to understand the basic definitions of controllability and observability in context of testing. What I am not being able to understand is how does adding scan design improves the testability, that is controllability and observability? How the inputs are controlled and the outputs are observed and faults detected? Please help me with this and if possible, explain through waveforms/timing diagrams wrt various clocks and modes of operation like normal, shift and capture. Thanks
I am studying the basics of dft techniques and is able to understand the basic definitions of controllability and observability in context of testing. What I am not being able to understand is how does adding scan design improves the testability, that is controllability and observability? How the inputs are controlled and the outputs are observed and faults detected? Please help me with this and if possible, explain through waveforms/timing diagrams wrt various clocks and modes of operation like normal, shift and capture. Thanks