88F6281

Hardware Specifications

Table of Contents

 

Product Overview

3

Features

4

Preface

.......................................................................................................................................................

15

 

About this Document

15

 

Related Documentation

15

 

Document Conventions

16

1

Pin and Signal Descriptions

17

1.1

Pin Logic

18

1.2

Pin Descriptions

19

1.3

Internal Pull-up and Pull-down Pins

48

2

Unused Interface Strapping

49

3

88F6281 Pin Map and Pin List

50

4

Pin Multiplexing

51

4.1

Multi-Purpose Pins Functional Summary

51

4.2

Gigabit Ethernet (GbE) Pins Multiplexing on MPP

57

4.3

TSMP (TS Multiplexing Pins) on MPP

59

5

Clocking

60

5.1

Spread Spectrum Clock Generator (SSCG)

62

6

System Power Up/Down and Reset Settings

63

6.1

Power-Up/Down Sequence Requirements

63

6.2

Hardware Reset

64

6.3

PCI Express Reset

66

6.4

SheevaCPU TAP Controller Reset

66

6.5

Pins Sample Configuration

66

6.6

Serial ROM Initialization

70

6.7

Boot Sequence

71

7

JTAG Interface

73

7.1

TAP Controller

73

7.2

Instruction Register

73

7.3

Bypass Register

74

7.4

JTAG Scan Chain

74

7.5

ID Register

74

Doc. No. MV-S104859-U0 Rev. E

Copyright © 2008 Marvell

Page 8

Document Classification: Proprietary Information

December 2, 2008, Preliminary

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Marvel Group 88F6281 specifications Table of Contents