Programmable integrated circuit with voltage domains
US8159263B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2010 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0016
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable integrated circuit having a plurality of individually controlled voltage domains. Each voltage domain includes logic circuitry powered by a respective power network. The voltage magnitude of each power network is independently selectable. Each of a plurality of level shifters couples a first and second one of the voltage domains, couples a first port of the logic circuitry of the first voltage domain to a second port of the logic circuitry of the second voltage domain, and shifts from a first signaling protocol of the first port to a second signaling protocol of the second port. The first signaling protocol is referenced to the voltage magnitude of the first voltage domain, and the second signaling protocol is referenced to the voltage magnitude of the second voltage domain. Means are disclosed for controlling the voltage magnitude of the respective power network of one or more of the voltage domains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.