Apparatus and method for main memory unit protection using access and fault logic signals
US5317717A · kind A · utility
40Cited by
30References
20Claims
0Family size
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Key dates
| Filing date | Aug 20, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Aug 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1475
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing system, apparatus and method for controlling the type of processing to which data signal groups can be subjected includes a page table entry format having a multiplicity of field positions for storing signals defining page access rights. In addition to the read/write access control, the signal group access rights can be determined by the current mode of operation of the data processing unit and the intended activity of the addressed instruction or data element (i.e., read, write or execute).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.