The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 19, 2000

Filed:

Sep. 29, 1997
Applicant:
Inventors:

Andrew T Brown, Ft. Collins, CO (US);

Marvin W Martinez, Jr, Plano, TX (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
710127 ; 710 66 ;
Abstract

A CPU-Peripheral bus interface for 64-bit local bus to 32-bit peripheral bus uses byte enable signaling to provide byte lane steering. Qbuffer logic provides a hardware interface that interfaces directly to the processor local-bus--a Qbuffer protocol using conventional byte enable signals provides lane steering to eliminate the need for separate multiplexing logic. The Qbuffer protocol signals include a BE control signal asserted by the system logic to cause the CPU to relinquish control of the byte enable control lines, such that the system control logic is able to drive the BE control lines with byte enable codes to implement lane steering for CPU-Peripheral transfers.


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