Cross-domain access method, device, apparatus, and media
The cross-domain access method addresses the issue of bus abnormalities in in-vehicle chip systems by detecting and responding to abnormal bus states, ensuring normal operation and functional safety of the high safety level domain.
JP2025080743AActive Publication Date: 2025-05-26BEIJING HORIZON INFORMATION TECH CO LTD
-1 Cites -1 Cited by
Patent Information
- Application Number
- JP2024164789
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-11-14
- Filing Date
- 2024-09-24
- Publication Date
- 2025-05-26
- Estimated Expiration
- 2044-09-24
Smart Images
Figure 2025080743000001_ABST
Abstract
To provide a cross-domain access method, a device, an apparatus, and media.SOLUTION: A method includes the steps of: transmitting an access request from a first component having a first security level to a second component having a second security level; detecting a bus transmission status of the second component; generating an interrupt signal based on the bus transmission status, and treating a preset result, when the bus transmission status is a preset status, as an access result corresponding to the access request transmitted by the second component; and executing abnormality processing corresponding to the interrupt signal to recover access of the first component to the second component.SELECTED DRAWING: Figure 2
Need to check novelty before this filing date? Find Prior Art