Architecture and method for providing guaranteed access for a re

Details Architecture and method for providing guaranteed access for a re Architecture and method for providing guaranteed access for a re

1994-02-24

2000-02-15

Myers, Paul R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

710240, G06F 1336

Patent

active

060264551

ABSTRACT:
A bridge circuit adapted to be associated with a PCI and a secondary bus circuits which bridge circuit includes circuitry for storing an indication that a particular PCI bus master has attempted an access of the secondary bus and has been forced to retry that access, circuitry for masking any retry until the bus is again available, and circuitry for providing an interval during which a retrying PCI bus master is guaranteed access to the secondary bus in favor of a bus master on the secondary bus after the bus is relinquished so that a sequence of retry operations causing a loss of bandwidth on the PCI bus is not generated.

REFERENCES:
patent: 4320467 (1982-03-01), Glass
patent: 4953072 (1990-08-01), Williams
patent: 5195185 (1993-03-01), Marenin
patent: 5253348 (1993-10-01), Scalise
patent: 5269005 (1993-12-01), Heil et al.
patent: 5301282 (1994-04-01), Amini et al.
patent: 5418914 (1995-05-01), Heil et al.

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