Patent · US Active

Deadlock-resistant bus bridge with pipeline-restricted address ranges

US7970977B1 · kind B1 · utility

12Cited by

9References

18Claims

0Family size

Assignee

XILINX, INC. · US

Inventors

Kam-Wing Li · San Jose, US
Ahmad R. Ansari · San Jose, US
Sanford L. Helton · San Jose, US
Tomai Knopp · San Jose, US
Khang K. Dao · San Jose, US
Jeffrey H. Seltzer · San Jose, US

Key dates

Filing date	Jan 30, 2009
Grant date	Jun 28, 2011
Priority date	—
Expiry date	May 23, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/4036
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of bridging a plurality of buses within a bus bridge can include determining whether a queue of the bus bridge includes a transaction request directed to a restricted address range and, for each received transaction request, determining whether an address to which the transaction request is directed is within the restricted address range. Each transaction request received by the bus bridge can be selectively rejected according to whether the address to which the transaction request is directed is within the restricted address range and whether the queue includes a transaction request directed to the restricted address range.

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