Semiconductor device and data processing system
US6820179B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Aug 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor device which has an internal circuit for performing a circuit operation corresponding to a signal inputted or outputted through an input/output interface circuit adapted to a serial bus. The semiconductor device has a non-volatile storage circuit for storing identification data. Internal identification data stored in the non-volatile storage circuit is compared with external identification data included in an input signal supplied through the serial bus by a comparator circuit. A control circuit is responsive to a match detecting signal generated by the comparator circuit to perform a circuit operation corresponding to an input signal subsequently supplied through the serial bus to change the internal identification data stored in the non-volatile storage circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.