Method for globally protecting memory by MCU (Microprogrammed Control Unit) chip

By designing a protection module on the MCU chip and connecting it to the bus, dividing the memory area and configuring protection information, the problem that the MCU chip cannot globally protect other storage devices is solved, achieving higher security and access performance.

CN120669915AActive Publication Date: 2025-09-19杭州领芯微电子有限公司
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Patent Information

Application Number
CN202510778016.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2025-09-19
Estimated Expiration
2045-06-11

AI Technical Summary

Technical Problem

In the existing technology, the storage device protection logic of the MCU chip can only protect the eFlash storage/controller and cannot globally protect other storage devices. In addition, the access path is lengthy, affecting performance.

Method used

A protection module is designed on the MCU chip, connected to the bus through the host module, divided the memory area and configured different protection information, established a mapping table, determined the access type and performed multi-dimensional protection.

Benefits of technology

It realizes the protection of the global memory of the MCU chip, improves the security and access performance, shortens the illegal access logic path, and enhances the protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method for globally protecting memories by an MCU (Microprogrammed Control Unit) chip, a preset number of host modules, a preset number of memories and a protection module are arranged on the MCU chip, each host module is electrically connected with the protection module, and each memory is electrically connected with the protection module through a bus. According to the method for globally protecting the memory by the MCU chip, the protection module is designed between the host module and the bus, so that the global memory of the MCU chip is protected, and multi-dimensional protection is carried out on the protection logic, so that the protection effect and the safety are improved; according to the technical scheme, illegal access is judged after being accessed by the host module and arriving at the protection module, and the access is directly abandoned as illegal questions are judged, so that the logic path of the illegal access is shortened, the short board of the access is supplemented, and the access performance is improved.
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Citation Information

Patent Citations

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