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CEC1712 Datasheet(PDF) 152 Page - Microchip Technology

Part # CEC1712
Description  Cryptographic Embedded Controller
PDF  338 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CEC1712 Datasheet(HTML) 152 Page - Microchip Technology

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CEC1712
DS00003416C-page 152
 2020-2021 Microchip Technology Inc.
12.0 WATCHDOG TIMER (WDT)
12.1
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.
12.2
Interface
This block is designed to be accessed internally via a registered host interface
12.3
Host Interface
The registers defined for the Watchdog Timer (WDT) are accessible by the embedded controller as indicated in Section
12.7, "EC Registers". All registers accesses are synchronized to the host clock and complete immediately. Register
reads/writes are not delayed by the 32KHz.
12.4
Signal Description
12.4.1
SIGNAL INTERFACE
There are no external signals for this block.
FIGURE 12-1:
I/O DIAGRAM OF BLOCK
Watchdog Timer (WDT)
Clock Inputs
WDT Event
Resets
Host Interface
Signal Description



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