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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)

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 97 98

CT-30 Series 1
Revision History 2
Preface iii 3
Conventions 5
Table of Contents 7
List of Tables 9
List of Figures 11
1Overview 13
1.2 Features 14
1.3 Block Diagram 15
1.4 Product List 16
1.5 Package Contents 17
6Overview 18
2 Specifications 19
2.3 Software 20
2.4 Mechanical 20
2.5 Environmental 21
2.6 I/O Connectivity Table 22
2.7 Power Requirements 23
Power Consumption 24
2MB L2 cache 25
1MB L2 cache 26
2.8 Board Layout 27
3 Functional Description 29
Intel® Celeron® M 30
Functional Description 19 31
Intel® 3100 Chipset Overview 32
Functional Description 21 33
22 Functional Description 34
3.2 Peripherals 36
SMBus Devices 37
FWH Flash Memory 38
LED Functions 38
3.3 Board Interfaces 39
28 Functional Description 40
CompactPCI Bus Interfaces 42
CompactPCI J1 Pin Assignment 43
32 Functional Description 44
Functional Description 33 45
Pin Z A B C D E F 45
3.4 Board Interfaces on RTM 46
COM1 and COM2 Interfaces 47
® 3100 Chipset Datasheet 48
Serial ATA Interfaces 49
38 Functional Description 50
ETHx Gigabit Ethernet port 51
SATAx Serial ATA port 51
COMx COM port 51
40 Functional Description 52
4 Getting Started 53
42 Getting Started 54
4.5 Hot Swap Procedures 55
44 Getting Started 56
5 Driver Installation 57
46 Driver Installation 58
6 Watchdog Timer 59
7 BIOS Setup Utility 65
Setup Menu 66
Navigation 66
Hotkey Descriptions 67
56 BIOS Setup Utility 68
7.2 Main Setup 69
Input UUID 70
7.3 Advanced BIOS Setup 71
60 BIOS Setup Utility 72
BIOS Setup Utility 61 73
62 BIOS Setup Utility 74
Intel® SpeedStep™ Techology 75
Intel® Celeron® M ULV 423 75
IDE Configuration 76
AHCI Configuration 77
Hardware Health Configuration 78
Remote Access Configuration 79
68 BIOS Setup Utility 80
USB Configuration 81
70 BIOS Setup Utility 82
7.4 PCI/PnP Setup 83
7.5 Boot Setup 84
Boot Setting Configuration 85
Boot Device Priority 86
Removable Drives 87
7.6 Security Setup 88
BIOS Setup Utility 77 89
78 BIOS Setup Utility 90
7.7 Chipset Setup 91
80 BIOS Setup Utility 92
7.8 Exit Menu 93
82 BIOS Setup Utility 94
Important Safety Instructions 95
Getting Service 97
86 Getting Service 98

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