Intel 815 manuels

Intel 815 Manuel d'utilisateur (213 pages)

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Table des matières

815 Chipset Platform

1

Contents

3

Figures

8

Revision History

11

1 Introduction

13

1.1 Terminology

14

Term Description

15

1.2 Reference Documents

16

1.3 System Overview

16

1.3.1 System Features

17

1.3.2 Component Features

18

1.3.2.2 Intel

20

1.3.2.3 Firmware Hub (FWH)

20

1.3.3 Platform Initiatives

21

TCO Timer

22

Processor Present Indicator

22

Function Disable

22

Intruder Detect

22

Alert on LAN*

22

1.3.3.7 AC’97

23

2.1 Nominal Board Stackup

25

Future 0.13 Micron

31

Socket 370

31

Processors

31

Proc_Detect

32

Selection Switch

33

4.2.4 VTT Processor Pin AG1

34

SMAA[12]

35

Proc_ID_Strap

35

VTTPWRGD_Config

36

4.2.7 VCMOS Reference

37

PWRGOOD to Processor

38

PW RGOOD from ICH2

38

API_CLK_SW

39

63.4 Ω 75 Ω

40

150 Ω 150 Ω

40

ProcessorGMCH

40

VDD on CK-815

41

VTTPWRGD12

41

ICH_PWROK_GATING

42

PGA370 socket

46

L(1): Z

46

= 60 Ω ± 15%

46

Ground Reference

47

Reference Plane Splits

47

Processor Connector Breakout

47

Minimizing Cross-Talk

48

5.2.1.2 THRMDP and THRMDN

50

Designs

51

for future 0.13 micron

52

• Reserved for Pentium III

55

• 1.25V PLL reference

55

• VCC2.5 for Pentium III

55

Ω), 1% R2 (Ω)

57

Ω), 1% CLKREF Voltage (V)

57

5.9.1 Topology

59

5.9.2 Filter Specification

59

NOTES:

60

1. Diagram not to scale

60

PLL_filter_1

62

PLL_filter_2

62

5.12 Thermal Considerations

65

5.13 Debug Port Changes

67

6 System Memory Design

69

Guidelines

69

A B C D E F

71

Signal Top

71

Min. (16 Mbit) 8 MB

73

Max. (64 Mbit) 256 MB

73

Max. (128 Mbit) 512 MB

73

A B C D E F G

74

6.5 Compensation

77

7 AGP/Display Cache Design

79

7.2 AGP 2.0

82

AGP_2x-4x_routing

85

7.3.4 AGP Clock Routing

88

AGP_decoupling_cap_placement

89

AGP_Down_1x-2x

91

7.4.4 AGP Clock Routing

92

AGP_VDDQ_gen_ex_circ

94

7.6.1 Compensation

97

7.6.2 AGP Pull-Ups

97

8.1 Analog RGB/CRT

101

NOTE: Diodes D

102

Board Cross Section

103

Graphics Chip

105

8.2 Digital Video Out

106

9 Hub Interface

107

9.1.1 Data Signals

108

9.1.2 Strobe Signals

108

9.1.4 Compensation

109

10 I/O Subsystem

111

IDE connector

112

Black wires: ground

112

Grey wires: signals

112

IDE_cable_det_host

114

IDE_resistor_schem_primar

116

IDE_resistor_schem_secondar

117

Detection

118

10.3 AC’97

119

Controller)

123

10.6 SMBus

124

10.7 PCI

124

10.8 LPC/FWH

125

10.9 RTC

125

10.9.1 RTC Crystal

126

10.9.2 External Capacitors

126

VCC3_3SBY

127

RTC_RTCRESET_ext_circ

128

11 Clocking

131

11.2 3-DIMM Clocking

133

PCI slots

134

Processor

135

136 Intel

136

Clocking

137

11.4 Clock Decoupling

137

138 Intel

138

11.6 Clock Skew Assumptions

138

11.7 Intel

139

140 Intel

140

12 Power Delivery

141

142 Intel

142

Power Delivery

143

144 Intel

144

12.1 Thermal Design Power

144

LEAKAGE

145

146 Intel

146

148 Intel

148

150 Intel

150

152 Intel

152

154 Intel

154

13 System Design Checklist

155

156 Intel

156

/Connect to ICH

156

System Design Checklist

157

158 Intel

158

13.3 GMCH Checklist

158

160 Intel

160

13.4 ICH Checklist

161

162 Intel

162

164 Intel

164

13.5 LPC Checklist

165

166 Intel

166

13.6 System Checklist

166

13.7 FWH Checklist

166

168 Intel

168

13.9 LAN Checklist

168

170 Intel

170

Memory Vendors

171

172 Intel

172

Board (CRB)

173

COVER SHEET

174

BLOCK DIAGRAM

175

370PGA SOCKET, PART 1

176

370PGA SOCKET, PART 2

177

Clock Synthesizer

178

82815B GMCH, PART 1, 4, AND 5

179

82815B GMCH, PART 2

180

82815B GMCH, PART 3

181

AGP CONNECTOR

182

SYSTEM MEMORY

183

ICH, PART 1

185

INTEL 82801AA

185

PART 1

185

ICH, PART 2

186

FIRMWARE HUB (FWH) SOCKET

187

SUPER I/O

188

PCI CONNECTOR 0

189

(DEV Ah)

189

PCI CONNECTOR 1

190

(DEV Bh)

190

IDE CONNECTORS

191

TUSB2043

192

PARALLEL PORT

193

Serial Port and Header

194

Keyboard/Mouse Port

195

Floppy Disk Header

195

Game Port

196

Digital Video Out Connector

197

(FOR DEBUG PURPOSES ONLY)

197

VGA CONNECTOR

198

Audio/Modem Riser

199

AC'97 Audio Codec

200

Audio Connectors

201

Last Revision Date:

202

Voltage Regulators

204

AGP, VCMOS Voltage Regulator

205

Processor Voltage Regulator

206

SYSTEM, PART 1

207

SN74LVC06A has 5V input

208

Unused Gates

209

370-pin Socket Decoupling

210

VRM DECOUPLING

211

Hub Interface Connector

212

THERMTRIP

213

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