13
Intel
®
855GME Chipset and Intel
®
6300ESB ICH Embedded Platform Design Guide
39 ITP_CLK to CPU ITP Interposer Layout Example......................................................................85
40 Intel
®
Pentium
®
M/Celeron
®
M Processor 1.8-V VCCA[3:0] Recommended
Power Delivery and Decoupling..................................................................................................87
41 Intel
®
Pentium
®
M/Celeron
®
M Processor 1.8 V Intel
®
Customer Reference Board
Routing Example ........................................................................................................................88
42 Intel
®
Pentium
®
M/Celeron
®
M Processor Socket Core Power Delivery Corridor......................92
43 Intel
®
Pentium
®
M/Celeron
®
M Processor Core Power Delivery
and Decoupling Concept Example (Option #4) ..........................................................................93
44 VCC-CORE Power Delivery and Decoupling Example –
Option 4 (Primary and Secondary Side Layers) .........................................................................98
45 Intel
®
Pentium
®
M/Celeron
®
M Processor Core Power Delivery
‘North Corridor’ Zoom-in View ....................................................................................................99
46 VCC-CORE Power Delivery and Decoupling Example – Option 4 (Layers 3, 5, and 6).............99
47 Recommended SP Cap Via Connection Layout (Secondary Side Layer)................................100
48 Platform Power Delivery Map ...................................................................................................104
49 GMCH Power-up Sequence .....................................................................................................105
50 Example V5REF/3.3 V Sequencing Circuitry............................................................................106
51 Example for Minimizing Loop Inductance.................................................................................107
52 DDR Power Delivery Block Diagram ........................................................................................110
53 GMCH SMRCOMP Resistive Compensation...........................................................................111
54 GMCH System Memory Reference Voltage Generation Circuit...............................................112
55 GMCH HDVREF[2:0] Reference Voltage Generation Circuit ...................................................113
56 GMCH HAVREF Reference Voltage Generation Circuit ..........................................................113
57 GMCH HCCVREF Reference Voltage Generation Circuit........................................................114
58 Primary Side of the Motherboard Layout..................................................................................114
59 Secondary Side of the Motherboard Layout .............................................................................115
60 GMCH HXRCOMP and HYRCOMP Resistive Compensation .................................................115
61 GMCH HXSWING and HYSWING Reference Voltage Generation Circuit...............................116
62 Example Analog Supply Filter...................................................................................................116
63 Intel
®
6300ESB Power Delivery Example ................................................................................118
64 DDR Clock Routing Topology (SCK[5:0]/SCK[5:0]#)................................................................126
65 DDR Clock Trace Length Matching Diagram............................................................................129
66 Data Signal Routing Topology..................................................................................................131
67 SDQS to Clock Trace Length Matching Diagram .....................................................................134
68 SDQ/SDM to SDQS Trace Length Matching Diagram .............................................................136
69 Control Signal Routing Topology..............................................................................................139
70 Control Signal to Clock Trace Length Matching Diagram.........................................................141
71 Command Routing for Topology...............................................................................................143
72 Topology Command Signal to Clock Trace Length Matching Diagram....................................145
73 CPC Control Signal Routing Topology .....................................................................................147
74 CPC Signals to Clock Length Matching Diagram .....................................................................149
75 GMCH DAC Routing Guidelines...............................................................................................155
76 Rset Placement ........................................................................................................................156
77 DAC R, G, B Routing and Resistor Layout Example................................................................157
78 DVOB and DVOC Simulations Model.......................................................................................167
79 Driver-Receiver Waveforms Relationship Specification ...........................................................168
80 DVO Enabled Simulation Model ...............................................................................................169
81 Generic Module Connector Parasitic Model .............................................................................169
82 GVREF Reference Voltage.......................................................................................................171
83 AGP Layout Guidelines ............................................................................................................176