Apparatus and method for retrieval of circuit state information
US6282674A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/267
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus and method for remote retrieval of an integrated-circuit state according to the present invention uses a remote input/output ("RIO") processor with a test circuit interface, which in the preferred embodiment is the TAP 118. The test circuit interface is for electrically-coupling to an integrated circuit having a test circuit with at least one register for storing a state-information with respect to the integrated circuit. The RIO processor executes a program that instructs the RIO processor to retrieve the state-information in response to a request command. The retrieved state information is transmitted for analysis at a location remote from the computer system using a data-and-instruction communication device. A method of the present invention has a step of issuing a request command for state-information of the integrated circuit having, retrieving the state-information of the integrated circuit in response to the command request; and transmitting the state-information to a location remote from the integrated circuit such that the state-information is available for analysis by a service technician.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.