Method for transferring a control signal between a first digital domain and a second digital domain, and corresponding system-on-a-chip
US12294373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Nov 21, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017509
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system-on-a-chip includes a first digital domain and a second digital domain. An interface circuit includes a level-shifting circuit for converting a signal between the first digital domain and the second digital domain. The first digital domain includes a control circuit configured to generate a control signal for transmission to the second digital domain. The control signal includes a pulse having a nominal duration adapted to the level-shifting circuit. At the input of the level-shifting circuit, the interface circuit includes, in the first domain, a conditional pulse-stretching circuit that lengthens a duration of the pulse of the control signal to at least the nominal duration when a duration of the pulse of the control signal is shorter than the nominal duration and non-zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.