Method and apparatus for enumerating devices on a link
US7124208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Dec 11, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/162
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide for enumerating codecs on a link. A controller asserts a synchronization signal, and drives one or more control lines associated with selected codecs to a first state. The enumeration period is defined by a predefined number of clock periods after de-assertion of the synchronization signal. During the enumeration period, the controller drives the control lines of codecs that are supported to a second state. If the control line for a codec is not pulled to the second state during the enumeration period, that codec will act disabled, ignoring all inputs, and will not participate in any link activity, until the next reset, where it will again look for an assertion of its control line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.