Circuits, systems, and methods for uniquely identifying a microprocessor at the instruction set level employing one-time programmable register
US6065113A · kind A · utility
17Cited by
5References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Mar 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/006
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method embodiment (10), the method operates a microprocessor (110), and the microprocessor has an instruction set. The method first (11) stores an identifier code uniquely identifying the particular microprocessor in a one-time programmable register. The method second (12) issues to the microprocessor an identifier request instruction from the instruction set. The method then, and in response to the identifier request instruction, provides (18) from the microprocessor an identifier code. Other circuits, systems, and methods are also disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.