Multi-region default memory map
US8572329B2 · kind B2 · utility
4Cited by
4References
16Claims
0Family size
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Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1491
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system is provided with a programmable memory protection unit 10 defining a plurality of programmable memory regions 2, 4, 6, 8 each with associated programmable memory attributes. A default memory protection unit 22 is provided and defines a plurality of default memory regions a, b, c, d, e each with associated default memory attributes. If a miss occurs in the programmable memory protection unit 10, and the memory access is a privileged level memory access, then the default memory protection unit 22 will return default memory attributes for that memory request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.