Can LBIST fail based on Temperature assuming Voltage levels are all within Spec?

[User9635]

Hello Support,

In the Aurix 2G Safety Manual, there is a section "ESM[SW]:MCU:LBIST_RESULT" where the following is mentioned:

"Therefore it might happen that under extreme operation conditions a
single LBIST run might fail by showing an unexpected MISR-result."

For SAK-TC3xx device, when the ambient is 125C and Voltage rails are within Spec, is there a possibility LBIST MISR value will be wrong?
Please help me better understand this statement.
Best Regards

[NeMa_4793301]

There is always the possibility of a soft error during the LBIST. Run it a second time if it fails.