Bus communication

Details Bus communication Bus communication

1999-12-27

2004-08-10

Duong, Frank (Department: 2666)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S438000, C710S107000, C710S313000

Reexamination Certificate

active

06775282

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to bus communication.
A digital device often includes a bus that enables components to communicate with each other. Bus communication between the components may consume a substantial portion of the power available to a device.
SUMMARY OF THE INVENTION
In one aspect, the invention features an apparatus that includes at least two circuits having interfaces for transmitting and receiving bus formatted messages and a port coupled to receive messages from the interfaces. The port broadcasts a first received message that is not destined for one of the circuits to the bus. The port blocks broadcast of a second received message that is destined for one of the circuits to the bus.
Other features and advantages will be appreciated from the following description taken together with the drawings.


REFERENCES:
patent: 5136580 (1992-08-01), Videlock et al.
patent: 5343471 (1994-08-01), Cassagnol
patent: 5396493 (1995-03-01), Sugiyama
patent: 5570366 (1996-10-01), Baker et al.
patent: 5842003 (1998-11-01), Holmes et al.
patent: 6381652 (2002-04-01), Reghunathan
patent: 6507591 (2003-01-01), Bray
patent: 6529511 (2003-03-01), Du et al.

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