Apparatus and method for controlling a three-state bus
US6686767B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4077
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A signal control circuit includes a set of signal lines that form a data bus. A set of three-state driver columns is connected to the data bus; each three-state driver column is connected to each signal line of the set of signal lines. A programmable synchronous three-state control circuit is connected to the set of three-state driver columns. The programmable synchronous three-state control circuit responds to a control signal and select signals to produce a three-state output enable signal which is applied to a selected three-state driver column of the set of three-state driver columns so as to control data signals on the data bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.