Which mode of the Intel timer 8253 provides a software watchdog timer?(a) rate generator(b) hardware triggered strobe(c) square wave rate generator(d) software triggered strobeThe question was posed to me during a job interview.Query is from Timer-II in portion Basic Peripherals of Embedded Systems

Which mode of the Intel timer 8253 provides a software watchdog timer?

1.	Which mode of the Intel timer 8253 provides a software watchdog timer?(a) rate generator(b) hardware triggered strobe(c) square wave rate generator(d) software triggered strobeThe question was posed to me during a job interview.Query is from Timer-II in portion Basic Peripherals of Embedded Systems
Answer» The correct option is (d) software triggered STROBE To elaborate: The software triggered strobe can be used as a software-based WATCHDOG TIMER in which the OUTPUT is connected to a non maskable INTERRUPT.

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Which mode of the Intel timer 8253 provides a software watchdog timer?(a) rate generator(b) hardware triggered strobe(c) square wave rate generator(d) software triggered strobeThe question was posed to me during a job interview.Query is from Timer-II in portion Basic Peripherals of Embedded Systems

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