Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2007-08-14

2007-08-14

Smithers, Matthew B (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C365S195000

Reexamination Certificate

active

10609609

ABSTRACT:
A semiconductor integrated circuit including one or a plurality of external functional blocks; a nonvolatile memory having a logical content as to whether to validate or invalidate the external functional blocks; and a logical circuit validating or invalidating an input and an output to each external functional block in accordance with the logical content of the memory, wherein a user is allowed to validate use of a necessary external functional block and to invalidate use of an unnecessary external functional block.

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patent: 6067633 (2000-05-01), Robbins et al.
patent: 6222382 (2001-04-01), Jefferson et al.
patent: 6668375 (2003-12-01), Leovac

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