Integrated circuit comprising a test mode secured by the use of an identifier, and associated method
US7921342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/318536
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic circuit includes configurable cells capable of being functionally linked to logic cells with which they cooperate to form at least one logic circuit if a chaining command signal is in a first (inactive) state. The electronic circuit also includes a logic interconnection circuit for performing the following functions if the chaining command signal is in a second (active) state. Functionally connecting the configurable cells in a linear feedback shift register if an authentication signal is in a first state, or functionally connecting the configurable cells in a chain in a predefined order to form a shift register if the authentication signal is in a second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.