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公开(公告)号：US20230064438A1
公开(公告)日：2023-03-02
申请号：US17460657
申请日：2021-08-30
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro CANNONE , Enrico FERRARA , Nicola ERRICO , Gea DONZELLI
Abstract: Disclosed herein is a single integrated circuit chip including main logic that operates a vehicle component such as a valve driver. Isolated from the main logic within the chip is a safety area that operates to verify proper operation of the main logic. A checker circuit within the chip outside of the safety area serves to verify proper operation of the checker circuit. The checker circuit receives signals from the safety circuit and uses combinatorial logic circuit to verify from those signals that the check circuit is operating properly.
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