SFFS138 December   2021 TCAN1164-Q1

 

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5.3.3.1 SM-9: Timeout, Window or Q&A watchdog error

The TCAN1164-Q1 supports an integrated watchdog function. The devices provide a default window-based watchdog as well as a selectable time-out and question and answer (Q&A) watchdog using the SPI interface. The watchdog timer does not start until the first input trigger event when in normal and standby (when enabled) operational modes. The nINT pin will refelect a watchdog failure. See the datasheet for detailed description on watchdog capability.