Intel 440GX Manual do Utilizador descarregar pdf (Página 51)

Intel

440GX AGPset Design Guide

2-27

Motherboard Layout and Routing Guidelines

Figure 2-24. Motherboard Model—DQM_B[1,5], 4 DIMMs

82443GX

1.0” - 3.25”

0.4” - 0.6”

DIMM Module 3

DIMM Module 4

Figure 2-25. Motherboard Model—CS_A#/CS_B#, 4 DIMMs

Figure 2-26. Motherboard Model—SRAS_A#, 4 DIMMs

82443GX

1.0” - 4.0”

DIMM Module x

82443GX

1.0” - 3.0”

0.4” - 0.6”

DIMM Module 1

DIMM Module 2

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 117 118

440GX AGPset 1
Contents 3
Revision History 9
440GX AGPset Design Guide 10
Introduction 11
1.2 References 14
1.3 Intel 15
Pentium 15
II Processor / Intel 15
Overview 15
1.3.2 Intel 16
1.3.3.1 Instrumentation 19
1.3.3.2 Remote Service Boot 19
1.3.3.3 Remote Wake-Up 20
1.3.3.4 Power Management 20
440BX AGPset to Intel 21
AGPset Design 21
Motherboard Design 23
Guidelines 25
2.2 Board Description 27
2.3 Routing Guidelines 29
2.3.1 GTL+ Description 30
2.3.3 Single Processor Design 30
2.3.4 Dual Processor Systems 32
2.3.6 Additional Guidelines 34
2.3.7 Design Methodology 35
2.3.9 Topology Definition 37
2.4 Placement & Layout 38
2.5 Post-Layout Simulation 38
2.6 Validation 39
2.7 Timing Analysis 41
82443GX 55
2.9.6 Intel 56
2.9.6.3 PCI Clock Layout 57
2.9.6.4 SDRAM Clock Layout 57
2.9.6.5 AGP Clock Layout 58
Design Checklist 59
3.3 Intel 62
II Processor Checklist 62
3.4 Intel 68
440GX AGPset Clocks 68
74LVCH16374 69
3.5 82443GX Host Bridge 70
3.5.3 82443GX PCI Interface 72
3.5.4 82443GX AGP Interface 73
3.6 Intel 74
3.6.3 Registered SDRAM 75
3.7 82371EB (PIIX4E) 76
3.7.2.1 Cabling 80
3.7.2.2 Motherboard 80
3.8 PCI Bus Signals 82
3.9 ISA Signals 83
3.10 ISA and X-Bus Signals 83
3.11 USB Interface 84
3.12 IDE Interface 84
0h–B3h, function 0 84
3.13 Flash Design 85
3.14 System and Test Signals 88
3.15 Power Management Signals 88
3.16 Miscellaneous 91
3.17 82093AA (IOAPIC) 92
3.18 Manageability Devices 93
3.18.3 82558B LOM Checklist 94
3.19 Software/BIOS 95
3.21 Mechanicals 96
3.22 Electricals 97
3.23 Layout Checklist 98
Recommendations 99
Debug Recommendations 101
4.3 Debug Features 102
4.3.3 Debug Layout 105
4.3.4 Debug Procedures 105
Third Party Vendors 107
5.1 Processors 109
5.2 Intel 111
5.3.1 Slot 1 Connector 112
5.3.2 Mechanical Support 112
5.3.3 Heat sinks 112
Reference Design 113
Schematics 113
Design A 115

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