Field-programmable electronic crossbar system and method for usi

Details Field-programmable electronic crossbar system and method for usi Field-programmable electronic crossbar system and method for usi

1994-08-04

1996-06-25

Harvey, Jack B.

395280, 395284, G06F 1300

Patent

active

055308139

ABSTRACT:
Method and apparatus for using a field-programmable gate-array circuit as a crossbar switch. In order to connect a first port of the crossbar switch to a second port, an address within the field-programmable gate-array circuit is calculated, and a first data pattern to load at that address is determined. A second data pattern to load at that address is determined in order to disconnect the first port from the second port. The first port is then connected to the second port by loading the first data pattern at the calculated address in the field-programmable gate-array circuit. Subsequently the first port is disconnected from the second port by loading the second data pattern at the calculated address in the field-programmable gate-array circuit. Mechanisms are provided for analog or digital ports, for multiple-bit digital ports, for combinations of logical functions with the crossbar-switch functions, and for latching the data within the crossbar switch. In one embodiment, the crossbar switch is incrementally reconfigurable wherein ports not involved in the reconfiguration are not affected by the reconfiguration operation. Applications to machine vision systems are described.

REFERENCES:
patent: 4229797 (1980-10-01), Ledley
Copyright page from "Configurable Logic-Design and Application Book--1993-1994" Published 1993. (From Applicant's 1449 form).
Joshua Silver, "High-Performance Scalable Switch Design," Programmable Logic, ASIC & EDA, pp. 38-48 (Jun., 1994).
ATMEL Corporation, "Field Programmable Gate Arrays--AT6000 Series," Configurable Logic--Design and Application Book--1993.cndot.1994, 1993, pp. 3-1-3-36, pp. 7-1-7-18 and 7-45-7-60.

Affiliated with

Also associated with

Rating

Field-programmable electronic crossbar system and method for usi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Field-programmable electronic crossbar system and method for usi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field-programmable electronic crossbar system and method for usi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2196538