Programmable port for crossbar switch
US5734334A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1995 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Aug 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/1736
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic crossbar switch employs a switch array for selectively routing digital and analog signals between its terminals. A separate port for each terminal provides a path for digital and analog signals flowing in and out of the switch. Each port can be configured to operate with or without tristate buffering under control of a tristate control signal, to optionally latch input or output signals in response to clock and clock enable signals, and to buffer signals passing in or out of the switch terminal with or without an input direction control signal. A set of control inputs are provided in common to all ports, allowing an external host to transmit control signals in parallel to each port. Each port may be programmed to select any of its control inputs as its tristate, clock enable, clocking or direction control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.