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US 2004/0165071 A1Published application
Boundary scan device
AssigneeNEC Electronics Corporation
InventorShinji Kashiwagi
Life of this patent
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Abstract
A boundary-scan device to a macro is disclosed. A plurality of signal paths are connected to the macro, each having a data signal input end and a data signal output end for signal transmission during normal mode operations. A plurality of circuitries are provided for the plurality of signal paths, respectively. Each circuitry has capability of capturing a signal transmission event that a signal has past through one of the plurality of signal paths during test mode operations.
Claims20
A boundary-scan device to a macro, comprising:
- a plurality of signal paths connected to the macro, each having a data signal input end and a data signal output end for signal transmission during normal mode operations;
- and
- a plurality of circuitries for said plurality of signal paths, respectively, each having capability of capturing a signal transmission event that a signal has past through one of said plurality of signal paths during test mode operations.
Dependencies are inferred from the claim text.