Dynamic page conflict prediction for DRAM

Details Dynamic page conflict prediction for DRAM Dynamic page conflict prediction for DRAM

2006-11-07

2006-11-07

Bataille, Pierre (Department: 2186)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S167000, C711S210000

Reexamination Certificate

active

07133995

ABSTRACT:
A memory controller may be implemented using dynamic page conflict prediction to control the closure of memory pages. A memory controller may include a page history register configured to store a value indicating the pattern of page conflicts encountered by a memory device. The memory controller may include a global conflict predictor for storing probabilities of page conflicts associated with values of the page history register. In response to receiving a memory access request, a control unit may be configured to determine whether the memory access request causes a page conflict. The memory controller may be configured to update the global conflict predictor based on this determination. If a page conflict is predicted, the memory controller may automatically close the targeted page (e.g., by initiating the memory access in auto-precharge mode) upon completion of the memory access requested by the memory access request.

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“The Authoritative Dictionary of IEEE Standards Terms,” 7th edition, IEEE Press Publications, 2000.

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