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MEC1322 데이터시트(PDF) 218 Page - Microchip Technology

부품명 MEC1322
상세설명  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 데이터시트(HTML) 218 Page - Microchip Technology

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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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