Isolation of I2C buses in a multiple power domain environment using switches
US7162654B1 · kind B1 · utility
8Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Nov 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/189
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk enclosure includes a first enclosure controller powered by a first voltage circuit and coupled to a first I2C bus, a second enclosure controller powered by a second voltage circuit and coupled to a second I2C bus, and a switch coupled between the first and the second I2C buses. The first switch de-couples the first and the second I2C buses when the voltage output of the second voltage circuit falls below a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.