Validating chip configuration data
US7496692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2005 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Oct 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/71
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Verifying configuration data for configuring a microprocessor or system-on-a-chip (SoC) is provided. During initialization, configuration data is shifted into the microprocessor or SoC through a configuration input. The configuration data is shifted to all of the on-chip processor units to provide initial settings for configuration latches in the design. While the configuration data is being shifted to the on-chip processor units, a copy of the configuration data is also stored in a local storage of a test control unit. A private interface is provided between the test control unit and the processor units. Via the private interface, a processor unit receives the current configuration data for the processor units. The current configuration data is compared against the original configuration data stored in the test control unit to verify the current configuration of the processor units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.