User`s manual

Watchdog Timer 47
CT-30
6 Watchdog Timer
6.1 WDT Overview
This section explains the operation of the CT-30’s Watchdog Timer
(WDT). The primary function of the WDT is to monitor the CT-30
operation and to reset the system if a software application fails to
function as programmed. The following WDT functions may be
controlled using a software application:
X enabled and disabled
X reloading timeout value
Figure 6-1: CT-30 Watchdog Timer Architecture
The CT-30 implements the internal WDT unit of the Intel 3100
chipset and its LPC interface. It contains registers of device6 at
Preload Value 1 Preload Value 2
LPC Interface
Down-Counter
Timeout/ Interrupt Control Logic
WDT_TOUT#
(External)
WDT_INT
(Internal)