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Friday, January 23, 2009

Built in logic block observer (BILBO)

This is a scheme for test generation where signature analysis is used in concurrence with a scan path. The target of this method is the fine design of integrated modular, bus-oriented and microprocessor systems. Here we use an LFSR together with some gates. In one method the storage elements are configured as a scan path connected as a serial shift register. Test vectors are applied now to the input and we shift responses outwards at the scan path output.

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