Patent · US Active

Method and apparatus for arbitration among multiple ports

US8200874B1 · kind B1 · utility

2Cited by

3References

19Claims

0Family size

Assignee

XILINX, INC. · US

Inventors

Wayne E. Wennekamp · Rio Rancho, US
Adam Elkins · San Jose, US
Schuyler E. Shimanek · Albuquerque, US
Thomas H. Strader · San Jose, US
Steven E. McNeil · Rio Rancho, US

Key dates

Filing date	Jan 27, 2010
Grant date	Jun 12, 2012
Priority date	—
Expiry date	Jan 20, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03K19/1774
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A device has first circuitry and also second circuitry that includes an interface and command ports that can each receive commands from the first circuitry, each command requesting an information transfer through the interface. A technique relating to the device involves dynamically enabling and disabling at least one of the command ports under control of the first circuitry, and using a priority list specifying an order of priority for a group of the command ports to identify and cause a command to be accepted from the command port of highest priority that contains a command and is currently enabled.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.