Method and apparatus for device interface
US6823416B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/662
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for communicating between a controller and a device with double-buffered inputs comprises the steps of providing one or more communication paths for exchanging data between the controller and the device, providing a data transfer control signal from the controller to the device for transferring input data from one or more input registers into one or more latchable data registers, and providing a data transfer delay signal from the device to the controller, wherein, in a first logic state, the data transfer delay signal prevents transfer of input data from the input registers into the latchable data registers until after a transition to a second logic state occurs on the data transfer delay signal. An apparatus for communicating between a controller and a device is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.