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corestudy
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Level 1
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The SMU collects alarm signals generated from safety mechanisms and can activate internal actions such as interrupt requests, NMI requests, reset requests, Port Emergency Stop signals. 

When an uncorrectable memory integrity error is detected in an instruction fetch, the PIE trap is raised. What actions the SMU needs to perform in the above scenario?

Thanks.

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Jeremy_Z
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250 sign-ins 100 likes received 750 replies posted

Hi @corestudy ,
1) Is there a problem with this understanding?
-- In general, it's right, however, there are other safety mechanisms in the Autrix MCU actually.
2) where does SMUs further improve functional safety?
-- There are some alarms to monitor the voltage, please learn more information by referring to the RM.
BR,
Jeremy

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Jeremy_Z
Moderator
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250 sign-ins 100 likes received 750 replies posted

Hi @corestudy ,
In the case of a PIE trap occurring, there's no corresponding alarm actually, so it needs to design other safety mechanisms to handle it, such as leveraging the Watchdog, etc.
BR,
Jeremy

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The detection and processing of faults are completed by other modules, and the SMU plays the role of routing, is there a problem with this understanding?

In addition to the characteristics of operating in different voltage domains, where does SMUs further improve functional safety?

Thanks.

0 Likes
Jeremy_Z
Moderator
Moderator
Moderator
250 sign-ins 100 likes received 750 replies posted

Hi @corestudy ,
1) Is there a problem with this understanding?
-- In general, it's right, however, there are other safety mechanisms in the Autrix MCU actually.
2) where does SMUs further improve functional safety?
-- There are some alarms to monitor the voltage, please learn more information by referring to the RM.
BR,
Jeremy