Verification system and method for signal monitoring module in car-grade chip

By designing a signal monitoring module verification system that supports single-signal and multi-signal differential modes, the problem of traditional modules being unable to verify complex timing relationships was solved, and the reliable execution and functional safety of multi-mode monitoring tasks of the signal monitoring module in automotive-grade chips were realized.

CN122242402APending Publication Date: 2026-06-19上海芯钛信息科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海芯钛信息科技有限公司
Filing Date
2026-03-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional signal monitoring modules cannot fully verify the complex timing relationships between modules in automotive-grade chips, making it difficult to expose potential timing violation risks and affecting functional safety.

Method used

Design a verification system for automotive-grade chip signal monitoring modules, including a register model, APB proxy, input proxy, output proxy, reference model, and checker. Support single-signal mode and multi-signal difference mode. Through randomized configuration and multi-mode monitoring, monitor the timing relationship between signals in real time and filter noise, and generate alarm signals to ensure the correctness of monitoring.

Benefits of technology

It enables reliable execution of multi-mode monitoring tasks for the signal monitoring module, ensuring the functional safety of automotive-grade chips in complex environments and improving verification coverage and monitoring efficiency.

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Abstract

This invention relates to the field of automotive-grade chip design and verification technology, and provides a verification system and method for a signal monitoring module in an automotive-grade chip. By modifying the monitor and reference model in the input agent and establishing a new verification system architecture, the proposed signal monitoring module with multiple modes retains the traditional monitoring mode and not only has the ability to monitor multiple signal differences, but can also be configured to filter input signals. In this mode, it monitors the difference between the rise time and the difference between the fall time of multiple signals in real time. If the monitored edge time difference is not within the expected acceptable range, a trigger event will be automatically generated, thereby fully verifying the correctness and completeness of the new, multi-functional signal monitoring module itself, and ensuring that the signal monitoring module can reliably perform its multi-mode monitoring tasks in the actual operation of automotive-grade chips.
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