Bus arbitration apparatus and bus arbitration method

Details Bus arbitration apparatus and bus arbitration method Bus arbitration apparatus and bus arbitration method

2006-12-12

2006-12-12

Perveen, Rehana (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

C710S119000, C710S121000, C710S122000, C710S123000

Reexamination Certificate

active

07149828

ABSTRACT:
The present invention is to provide a bus arbitration apparatus and a bus arbitration method not reducing data transfer capability as a whole and preventing a loss of transferred data. It performs the arbitration with priority in response to properties of bus masters. It sequentially arbitrates a first hierarchy bus master of which requests are urgent, a second hierarchy bus master that requests data processing in real time, and a third hierarchy bus master that is neither a first hierarchy bus master nor a second hierarchy bus master sequentially.

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patent: 5499345 (1996-03-01), Watanabe
patent: 6961793 (2005-11-01), Kato
patent: 2005/0204084 (2005-09-01), Joe et al.
patent: 2006/0212632 (2006-09-01), Apostol et al.
patent: 06-060017 (1994-03-01), None
patent: 2002-304367 (2002-10-01), None

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