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:
Dec. 16, 2003

Filed:

Nov. 24, 1999
Applicant:
Inventors:

Anshuman Thakur, Beaverton, OR (US);

Frank C. Verhoorn, III, Beaverton, OR (US);

Elazar Cohen, Haifi, IL;

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/256 ;
U.S. Cl.
CPC ...
H04L 1/256 ;
Abstract

A bus interface and method allow a special purpose processor and other components on a bus to efficiently communicate with a network controller. The interface and protocol support a variety of functions, including the ability to directly indicate to the network controller whether received data packets are destined for an external network entity, such as an external Ethernet controller, or for local computer memory. Additionally, the network controller can cut-off packets of data in mid-transfer to the network controller, and then later, at the command of the network controller, the data transfer may be resumed at the point within the packet at which it line was cut-off. Separate signal lines are used to inform the network controller of the general destination of the received data packets. In particular, a Transmit Request line is used to inform the network controller that data received from the special purpose processor is destined for the external network and a Loopback Request line is used to inform the network controller that data received from the special purpose processor is destined for internal computer memory.


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