Bus system and method of protected memory access
AssigneeInfineon Technologies AG
InventorsFrank Hellwig, Simon Cottam
Life of this patent
Estimating the term…
Abstract
A bus system includes a functional unit to which a unit identifier is assigned, a memory module for storage of data that has a storage region, and a bus. The functional unit is connected to the memory module via the bus. The storage region is configured such that one or more multiple global authorized identifiers are assigned thereto, so that the functional unit only has reading or writing access to the storage region if the unit identifier assigned to the functional unit corresponds to one of the global authorized identifiers assigned to the storage region.
Claims14
A bus system, comprising:
- a functional unit which is assigned a unit identifier;
- a memory module for storage of data, wherein the memory module has a storage region;
- and
- a bus, wherein the functional unit is connected to the memory module via the bus;
- wherein the storage region is configured such that one or multiple global authorized identifiers are assigned thereto, so that the functional unit only has access to the storage region if the unit identifier assigned to the functional unit corresponds to one of the global authorized identifiers assigned to the storage region.
A method of protected access to storage regions of a memory module, comprising:
- assigning a unit identifier to a functional unit;
- assigning global authorized identifiers to a storage region of the memory module;
- and
- providing access to the storage region by the functional unit via a bus that connects the functional unit and the memory module only if the functional unit is assigned a unit identifier which corresponds to a global authorized identifier.
Dependencies are inferred from the claim text.