Method and apparatus for responding to unclaimed bus transaction

Details Method and apparatus for responding to unclaimed bus transaction Method and apparatus for responding to unclaimed bus transaction

1995-09-29

2000-08-22

Sheikh, Ayaz R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710109, 710112, 710240, 710118, 710 59, G06F 1300

Patent

active

061087351

ABSTRACT:
An agent retrieves a request, which is part of a bus transaction, from a bus. The agent then stores an identifier of the bus transaction and responds to the bus transaction after a predetermined period of time, provided the agent was not the target of the request and the target agent did not respond. In one embodiment, the agent includes a queue and a timer. A controller within the agent starts the timer if the agent is not the target of the request, a snoop phase has occurred for the request, and the request is at the top of the queue. If the timer expires without the request having received a response, then the agent responds to the request.

REFERENCES:
patent: 4965716 (1990-10-01), Sweeney
patent: 5455957 (1995-10-01), Pawlowski et al.
patent: 5481680 (1996-01-01), Larson et al.
patent: 5485586 (1996-01-01), Brash et al.
patent: 5524216 (1996-06-01), Chan et al.
patent: 5530933 (1996-06-01), Frink et al.
patent: 5535340 (1996-07-01), Bell et al.
patent: 5546546 (1996-08-01), Bell et al.
patent: 5568621 (1996-10-01), Wooten
patent: 5581782 (1996-12-01), Sarangdhar et al.
patent: 5594875 (1997-01-01), Thaller
patent: 5615343 (1997-03-01), Sarangdhar et al.
patent: 5619687 (1997-04-01), Langan et al.
patent: 5621900 (1997-04-01), Lane et al.
patent: 5623645 (1997-04-01), Yip et al.
patent: 5625778 (1997-04-01), Childers et al.
patent: 5682551 (1997-10-01), Pawlowski et al.
patent: 5740376 (1998-04-01), Carson et al.
"PCI Local Bus Specification Revision 2.0," Cover and title pages, Table of Contents and pp. 24-25., Apr. 30, 1993.
Popescu, Val, Merle Schultz, John Spracklen, Gary Gibson, Bruce Lightner and David Isaman, "The Metaflow Architecture", IEEE Micro, Jun. 1991, pp. 10-13 and 63-73.

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