Intel 440GX Design Manual page 4

2.6
2.7
2.8
2.9
3 Design Checklist ........................................................................................................3-1
3.1
3.2
3.3
3.4
3.5
3.6
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Validation ....................................................................................................2-15
2.6.1 Flight Time Measurement ..............................................................2-15
2.6.2 Signal Quality Measurement..........................................................2-16
Timing Analysis...........................................................................................2-17
AGP Layout and Routing Guidelines ..........................................................2-19
2.8.1 AGP Connector ("Up Option) Layout Guidelines ...........................2-19
2.8.2 On-board AGP Compliant Device ("Down" Option)
Layout Guidelines ..........................................................................2-20
82443GX Memory Subsystem Layout and Routing Guidelines..................2-22
2.9.1 100 MHz 82443GX Memory Array Considerations........................2-22
2.9.1.1 Matching the Reference Planes ...................................2-23
2.9.1.2 Adding Additional Decoupling Capacitor ......................2-23
2.9.1.3 Trace Width vs. Trace Spacing ....................................2-24
2.9.2 Memory Layout & Routing Guidelines ...........................................2-24
2.9.3 4 DIMM Routing Guidelines [NO FET]...........................................2-30
2.9.4 PCI Bus Routing Guidelines ..........................................................2-30
2.9.5 Decoupling Guidelines: Intel
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2.9.6 Intel 440GX AGPset Clock Layout Recommendations................2-32
2.9.6.1 Clock Routing Spacing .................................................2-32
2.9.6.2 System Bus Clock Layout.............................................2-32
2.9.6.3 PCI Clock Layout..........................................................2-33
2.9.6.4 SDRAM Clock Layout...................................................2-33
2.9.6.5 AGP Clock Layout ........................................................2-34
Overview .......................................................................................................3-1
Pull-up and Pull-down Resistor Values.........................................................3-1
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Intel Pentium II Processor Checklist.........................................................3-2
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3.3.1 Intel Pentium
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3.3.2 Intel Pentium
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3.3.3 Intel Pentium
3.3.4 Uni-Processor (UP) Slot 1 Checklist ................................................3-7
3.3.5 Dual-Processor (DP) Slot 1 Checklist ..............................................3-7
3.3.6 Slot 1 Decoupling Capacitors ..........................................................3-7
3.3.7 Voltage Regulator Module, VRM 8.2 ...............................................3-7
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Intel 440GX AGPset Clocks........................................................................3-8
3.4.1 CK100 - 100 MHz Clock Synthesizer...............................................3-8
3.4.2 CKBF - SDRAM 1 to 18 Clock Buffer...............................................3-9
3.4.3 GCKE and DCLKWR Connection ....................................................3-9
82443GX Host Bridge .................................................................................3-10
3.5.1 82443GX Interface.........................................................................3-10
3.5.2 82443GX GTL+ Bus Interface .......................................................3-12
3.5.3 82443GX PCI Interface..................................................................3-12
3.5.4 82443GX AGP Interface ................................................................3-13
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Intel 440GX AGPset Memory Interface ....................................................3-14
3.6.1 SDRAM Connections .....................................................................3-14
3.6.2 DIMM Solution With FET Switches ................................................3-15
3.6.3 Registered SDRAM .......................................................................3-15
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440GX AGPset Platform ...............2-31
II Processor ...........................................................3-2
II Processor Clocks................................................3-5
II Processor Signals...............................................3-5
Intel
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440GX AGPset Design Guide