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Scan mode and scan chain control from internal registers

Hi,

I have unique requirement that scan mode be set by internal register which would control output at PO. By default PI/PO which drives scan are set for something else. Before scan starts, I need to set register to a proper value so PI and PO controls inserted scan chain. I do know that there exist a way to have tester drive the Register interface to drive PI to set registers to desired value. What I do not now how to generate such pattern that tester understands and how to include them in initialization sequence.

Thanks,

Sinjeet

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Sinjeetp over 12 years ago

Thanks Andy. I need to figure out how to modify sequence file for programming correct reg values to put chip in the scan mode.

Thanks,
Sinjeet
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Sinjeetp over 12 years ago

Thanks Andy. I need to figure out how to modify sequence file for programming correct reg values to put chip in the scan mode.

Thanks,
Sinjeet
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