Intel IXP46X Manuale Utente Pagina 70
- Pagina / 108
- Indice
- SEGNALIBRI
- IXP45X and Intel 1
- HDD February 2007 2
- Contents 3
- Revision History 7
- 1.0 Introduction 9
- 1.2 Related Documentation 10
- Acronyms and Abbreviations 11
- B3777 -007 13
- 1.5 Typical Applications 14
- 2.0 System Architecture 15
- Line of Network 16
- Processors 16
- IXP46X Product 16
- 3.1 Soft Fusible Features 17
- 3.2 DDR-266 SDRAM Interface 18
- 3.3 Expansion Bus 20
- 3.3.1 Signal Interface 21
- IXP45X and 22
- 3.3.3 8-Bit Device Interface 23
- 3.3.4 16-Bit Device Interface 23
- 3.3.5 32-Bit Device Interface 24
- 8-Bit Device 25
- 16-Bit Device 25
- 32-Bit Device 25
- 3.4.1 Signal Interface 29
- 3.5 MII/SMII Interface 30
- 3.5.1 Signal Interface MII 31
- VCC (3.3 V) 33
- 3.5.3 Signal Interface, SMII 34
- 3.6 GPIO Interface 35
- 3.6.1 Signal Interface 36
- 3.6.2 Design Notes 36
- C Interface 37
- B4104-002 38
- 3.8.1 Signal Interface 39
- Host Device 40
- Device Host 41
- 3.9.1 Signal Interface 42
- 3.9.2 Device Connection 42
- B4107 -003 43
- 3.10.1 Signal Interface 44
- B4109-001 47
- 3.12 PCI Interface 48
- B4110- 001 50
- Product Line 51
- Network Processor 51
- 3.13 JTAG Interface 53
- 3.14 Input System Clock 54
- 3.15 Power 55
- 4.0 General PCB Guide 59
- 4.5 Stack-Up Selection 60
- B2275-02 62
- 5.1 Overview 63
- 5.2 General Layout Guidelines 63
- Return Current 64
- 25 mils min 65
- B2268-01 66
- 5.2.5 USB Considerations 67
- 5.2.6 Cross-Talk 68
- 5.2.8 Trace Impedance 69
- 5.2.9 Power and Ground Plane 69
- 6.1 Electrical Interface 71
- 6.2 Topology 71
- Network 73
- Processor 73
- 6.3.2 Routing Guidelines 74
- 6.3.3 Signal Loading 74
- 7.0 DDR-SDRAM 75
- B3986-001 76
- IXP46X DDR SDRAM 80
- Signal-Timing Analysis 81
- B3989-001 82
- B3990-001 83
- 7.1.5 Timing Relationships 87
- 7.1.7 Routing Guidelines 88
- 7.2 Simulation Results 90
- 7.2.2 Data Group 92
- 7.2.3 Control Group 98
- 7.2.4 Command Group 100
- 7.2.5 RCVENIN and RCVENOUT 105
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