Accessing peripheral devices
US8984196B2 · kind B2 · utility
1Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Dec 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4291
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hardware system comprises a master device and a slave device that are coupled by a signal line. A frequency generator in the master device places a selected frequency signal on the signal line. A frequency detector/comparator in the slave device, which is coupled to the signal line, determines whether the selected frequency signal on the signal line matches a predetermined frequency for the slave device. If the selected frequency signal matches the predetermined frequency, then a chip select node on the slave device is enabled, in order to permit a data exchange session between the master device and the slave device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.