External memory control device regularly reading ahead data from external memory for storage in cache memory, and data driven type information processing apparatus including the same
US7082499B2 · kind B2 · utility
14Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Dec 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0862
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When the cache memory unit reads the last word of a page of the cache memory, the external memory interface reads ahead data of a prescribed number of pages ahead of the relevant page. Thus, data corresponding to the access request to the external main memory is always held in the cache memory. This prevents degradation of parallel processing capability of the data driven type information processing apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.