This post is just for information.
At the beginning when I decided to use TPL5010 as a Watch Dog I was not sure how it reacts to multiple DONE signals and there was no post on E2E to help. So I decided to post my own test results.
The datasheet mentions that second DONE signals are ignored. But I was not sure about the response for a trail of DONE signals.
The circuit was powered at 2.8V, the Watch Dog period is set to ~7 seconds using a 4.7kOhm resistor. The done signals where provided using a push button.
Successful processing of single DONE signals:
Here we can see a single DONE pulse that is sent to the TPL5010. The TPL5010 acknowledges with a WAKE pulse and does not issue a RESET.
Successful processing of a trail of DONE signals:
Here we see a trail of DONE pulses sent to the TPL5010. The TPL5010 responds in the same way it does for a single DONE signal (WAKE pulse issued and RESET pulse is blocked).