Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-03-28
2006-03-28
Moazzami, Nasser (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C365S222000
Reexamination Certificate
active
07020741
ABSTRACT:
For use with a memory controller in a data processor that is capable of executing memory refresh requests to refresh a memory of the data processor, an apparatus and method is disclosed for scheduling execution of the memory refresh requests. The apparatus comprises a periodic memory refresh hint unit that is capable of sending to the memory controller a data signal that comprises a periodic memory refresh hint. The periodic memory refresh hint informs the memory controller of an optimal time for a memory refresh to occur. The memory controller may immediately execute a memory refresh request when it arrives or delay the execution of the memory refresh request until a more opportune time. This feature enables the memory controller to reduce memory access latency in scheduling memory transactions.
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Advanced Micro Devices , Inc.
Moazzami Nasser
Toler Larson & Abel, LLP
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