US 5,862,360 AGranted

System resource enable apparatus with wake-up feature

AssigneeInternational Business Machines Corporation

InventorsPatrick J. Meaney, Adrian E. Seigler

Life of this patent

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Abstract

A system resource enable apparatus for enabling operations on a system resource including a register representing current and future operations on the resource, a pattern generator that applies a pattern corresponding to a requested resource operation to each of a plurality of requests for resource operations in a queue, compare logic that determines for each of the plurality of requests if the request will conflict with other resource operations by comparing the pattern applied to the request with the register, priority grant logic that grants priority to a request in the queue if no conflict is determined and to update the register according to the pattern applied to the request, and resource enable logic that enables operations on the resource according to the register. An automatic wake-up mechanism may also be provided to keep the array active during extended periods of non-use.

Claims7

Dependent claims

A system resource enable apparatus, comprising:

(a) a register representing current and future operations on the resource;
(b) a pattern generator that applies a pattern corresponding to a requested resource operation to each of a plurality of requests for resource operations in a queue;
(c) compare logic that determines for each of said plurality of requests if the request will conflict with other resource operations by comparing the pattern applied to the request with said register;
(d) priority logic that grants priority to a request in the queue if no conflict is determined and to update said register according to the pattern applied to the request;
and
(e) resource enable logic that enables operations on the resource according to said register;
wherein said resource enable logic further comprises:
(a) means for waiting a specified wait time interval during which the resource is inactive;
and
(b) means for enabling the system resource for a specified time interval upon expiration of the wait time interval.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/465,964Filed 6 Jun 1995 · continuation in part
Priority: 31 Mar 1995
Granted: 19 Jan 1999
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06F 9/5011
To service a request: the resources being hardware resources other than CPUs, Servers and Terminals
G06F 1/32
Power supply means, e.g. regulation thereof: means for saving power
G06F 13/18
For access to memory bus: based on priority control
G06F 2209/507
Indexing scheme relating to G06F9/50: low-level