SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The minimum time interval is the minimum amount of time that the error pin will be asserted (active low) when an enabled error interrupt event happens. This value is system dependent, but should be enough time so that the external monitoring agent can always see the error pin asserted, but short enough so that if all of the error events are cleared, then the error pin can be de-asserted before the external agent decides to intervene. This is highly dependent on the application and the Fault Tolerant Time Interval.
The Minimum Time Interval counter is clock cycle based, therefore the time of the interval is a combination of the value in the ESM_PIN_CNTR_PRE register and the clock frequency of the ESM. Software must calculate the value accordingly. The Minimum Time Interval should be set according to the needs of the application.