Improved system of resolving conflicting data processing memory

Details Improved system of resolving conflicting data processing memory Improved system of resolving conflicting data processing memory

1992-09-30

1994-08-16

Ray, Gopal C.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

3408255, 370 856, 3642426, 3642427, 3642412, 3642413, 3642715, 364DIG1, G06F 13364

Patent

active

053394429

ABSTRACT:
A request arbitration device is provided for prioritizing requests in a data processing system. A series of requests may arrive at the arbitration device at differing arrival times. The requests are accumulated to form a set of requests which is applied to a priority decode without any information on their relative arrival times. The priority device applies a fixed predetermined priority scheme to these requests. Simultaneously with the prioritizing of the first set of requests by the priority decode, a second set of requests may arrive at different arrival times. The requests of this second set of requests are likewise accumulated by the arbitration logic of a present invention. When arbitration of the first set of requests is complete, the second set of requests is then applied to the priority decode, again without any information with respect to their relative arrival times. The second set of requests is prioritized according to the same fixed predetermined priority scheme as the first set.

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