Clean engine for write-back cache memory
US11860781B1 · kind B1 · utility
2Cited by
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20Claims
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Key dates
| Filing date | May 4, 2022 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | May 4, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A write cleaner circuit can be used to implement write-through (WT) functionality by a write-back (WB) cache memory for updating the system memory. The write cleaner circuit can intercept memory write transactions issued to the WB cache memory and generate clean requests that can enable the WB cache memory to send update requests to corresponding memory locations in the system memory around the same time as the memory write transactions are performed by the WB cache memory, and clear dirty bits in the cache lines corresponding to those memory write transactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.