On-board diagnostic circuit for an integrated circuit
US7444546B2 · kind B2 · utility
27Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jul 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2733
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit having a plurality of functional circuits interconnected via a functional bus is provided with a diagnostic bus-master circuit which uses bus transactions on the functional bus to perform diagnostic operations. These diagnostic operations can be performed in real time during normal speed operation of the integrated circuit to produce more accurate diagnostic results. The diagnostic bus-master circuit is particularly useful for reading data values from memory or writing data values to memory as part of diagnostic operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.