Intel IXP46X manuales

Intel IXP46X Manual de usuario (108 paginas)

Marca: Intel | Categoria: Redes | Tamaño: 1.67 MB |

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Tabla de contenidos

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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