Configurable arbitration device for controlling the access of co

Details Configurable arbitration device for controlling the access of co Configurable arbitration device for controlling the access of co

1996-12-20

1999-08-03

Sheikh, Ayaz R.

395287, 395856, 395733, G06F 1314

Patent

active

059336480

ABSTRACT:
A number, Y, of ports are coupled to a common bus and to a bus arbitration extension device. The extension device is coupled to X pairs of arbitration signal lines, where X is less than Y. The extension device controls the assertion and receipt of request and grant signal in response to a control input which can be controlled by the operation of system software or BIOS. For example, two of the ports share one pair of arbitration signal lines under the control of the extension device and its control input. In a preferred embodiment of the present invention, a port that is empty or contains a non bus master device or a device that infrequently initiates transfers over the bus shares arbitration signal lines with a standard bus master device. The bus arbitration extension device allows for selectively controlling the access of components to an arbiter or the like based on the control input.

REFERENCES:
patent: 5077662 (1991-12-01), Hutson
patent: 5708813 (1998-01-01), Cho et al.
Technical Product Summary-Classic/PCI Pentium CPU Baby--at Motherboard, Premlininary Version 0.1 Dated Apr. 1993

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