Method wherein source arbitrates for bus using arbitration numbe

Details Method wherein source arbitrates for bus using arbitration numbe Method wherein source arbitrates for bus using arbitration numbe

1990-01-04

1993-08-31

Eng, David Y.

Boots, shoes, and leggings

3642426, 36493701, G06F 1336

Patent

active

052416283

ABSTRACT:
An improved method of supporting service requests in certain bus architectures is disclosed. According to the presently invented method, the source, instead of using its own arbitration number, uses the arbitration number of the destination when performing an interrupt or DMA request. The destination then recognizes that it has been granted bus ownership, even though it was not arbitrating for the bus originally. The destination can therefore immediately assume that a request has occurred and immediately thereafter begin its request service routine.

REFERENCES:
patent: 3810114 (1974-05-01), Yamada
patent: 3925766 (1975-12-01), Bardotti
patent: 3993981 (1976-11-01), Cassarino et al.
patent: 4059851 (1977-11-01), Nutter
patent: 4570220 (1986-02-01), Tetrick et al.
patent: 4807109 (1989-02-01), Farrell et al.

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