Multi-wire open-drain link with data symbol transition based clocking
US9374216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00293
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus, and a computer program product are described. The apparatus generates a receive clock signal for receiving data from a multi-wire open-drain link by determining a transition in a signal received from the multi-wire open-drain link, generating a clock pulse responsive to the transition, delaying the clock pulse by a preconfigured first interval if the transition is in a first direction, and delaying the clock by a preconfigured second interval if the transition is in a second direction. The preconfigured first and/or second intervals are configured based on a rise time and/or a fall time associated with the communication interface and may be calibrated by measuring respective delays associated with clock pulses generated for first and second calibration transitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.