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NUC120-LC2E Datasheet(Fiches technique) 73 Page - Nuvoton Technology Corporation

Numéro de pièce NUC120-LC2E
Description  ARM® Cortex®-M 32-bit Microcontroller
Télécharger  107 Pages
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Fabricant  NUVOTON [Nuvoton Technology Corporation]
Site Internet  http://www.nuvoton.com
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 73 page
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NUC100/120xxxDN
Aug 31, 2015
Page 73 of 107
Rev 1.01
Watchdog Timer (WDT)
6.10
6.10.1
Overview
The purpose of Watchdog Timer is to perform a system reset when system runs into an unknown
state. This prevents system from hanging for an infinite period of time. Besides, this Watchdog
Timer supports the function to wake-up system from Idle/Power-down mode.
6.10.2
Features
18-bit free running up counter for Watchdog Timer time-out interval.
Selectable time-out interval (2
4 ~ 218) and the time-out interval is 104 ms ~ 26.3168 s if
WDT_CLK = 10 kHz.
System kept in reset state for a period of (1 / WDT_CLK) * 63
Supports selectable Watchdog Timer reset delay period, it includes (1024+2)、(128+2) 、
(16+2) or (1+2) WDT_CLK reset delay period.
Supports force Watchdog Timer enabled after chip powered on or reset while CWDTEN
(Config0[31] watchdog enable) bit is set to 0.
Supports Watchdog Timer time-out wake-up function when WDT clock source is selected to
10 kHz low speed oscillator.




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