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Part Number: TPS3851
I understand that the watchdog timer is disabled when ISET1 pin is grounded. Then does it mean that timeout-counter is also reset?
Satoshi / Japan Disty
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In reply to Michael DeSando1:
I'm asking just simple question. Is the internal counter reset when SET1 is changed from High to Low as attached?
In reply to S.Satoshi:
No. SET1 has no impact on the internal counter. The SET1 connects to an internal state machine which uses logic to disable the /WDO. The internal counter doesn't depend on SET1. When SET1 goes high and enables the watchdog, a 150-us setup time reinitializes the watchdog before checking any inputs on WDI.
Does this answer your question?
Thank you for your point. Let me ask one more question to clarify my understanding.
I understand that tWD is started at this point and also started to check WDI input (See attached). Is my understanding correct?
Your text in blue is correct. Please let me know if you have any more questions. Thank you!
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