Deferring refreshes during calibrations in memory systems
US7356642B2 · kind B2 · utility
2Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 12, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/2254
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus, and a computer program are provided to control refreshes in Extreme Data Rate (XDR™) memory systems. XDR™ memory systems employ calibrations to ensure the precise transmission of data. During calibrations, memory refreshes can occur; however, these refreshes can interfere with calibration streams. Therefore, to alleviate collisions and interferences, refreshes are deferred to periods where no calibrations are taking place. The number of deferred refreshes is also tracked such that the overall loss of refreshes is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.