Electrical Engineering Glossary Definition for Watchdog

Definition

A feature of a microprocessor supervisory circuit that monitors software execution in a microprocessor or microcontroller. It takes appropriate action (assert a reset or nonmaskable interrupt) if the processor gets stuck in an infinite execution loop.

Synonyms

• Watchdog Timer
• Watchdog Output
• WDO
• Watchdog Circuit
• Watchdog Time-Out

See Also

• Microprocessor Supervisor
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