The TCAN114x-Q1 has an integrated watchdog function. The TCAN114x-Q1 provides a window based watchdog as well as a selectable time-out and question and answer (Q&A) watchdog using SPI programming. This function is default disabled. When enabled, the watchdog timer does not start until the first input trigger event when in normal and standby (when enabled) operational modes. The watchdog timer is off in sleep mode. The INH pin can be programmed as a LIMP function which provides a limp home capability when connected to external circuitry. Otherwise the nINT will reflect a watchdog failure and any specific programmed action. When in sleep mode, the limp pin is off. When the error counter reaches the watchdog trigger event level, the limp pin turns on connecting VSUP to the pin as described in the LIMP pin section.