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MEC1322 Datasheet(PDF) 218 Page - Microchip Technology |
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MEC1322 Datasheet(HTML) 218 Page - Microchip Technology |
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218 / 456 page  MEC1322 DS00001719D-page 218 2014 - 2015 Microchip Technology Inc. 16.0 WATCHDOG TIMER (WDT) 16.1 Introduction The function of the Watchdog Timer is to provide a mechanism to detect if the internal embedded controller has failed. When enabled, the Watchdog Timer (WDT) circuit will generate a WDT Event if the user program fails to reload the WDT within a specified length of time known as the WDT Interval. 16.2 References No references have been cited for this chapter. 16.3 Terminology There is no terminology defined for this chapter. 16.4 Interface This block is designed to be accessed internally via a registered host interface or externally via the signal interface. 16.5 Host Interface The registers defined for the Watchdog Timer (WDT) are accessible by the embedded controller as indicated in Section 16.8, "EC-Only Registers". All registers accesses are synchronized to the host clock and complete immediately. Regis- ter reads/writes are not delayed by the 32KHz_Clk. FIGURE 16-1: I/O DIAGRAM OF BLOCK Watchdog Timer (WDT) Clock Inputs WDT Event Resets Host Interface |
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