Contents

12

Dual Port Characteristics

203

 

12.1

Introduction

203

 

12.2 Features of Each MAC

203

 

 

12.2.1

PCI/PCI-X interface

203

 

 

12.2.2

MAC Configuration Register Space

205

 

 

12.2.3

SDP, LED, INT# output

205

 

12.3

Shared EEPROM

206

 

 

12.3.1

EEPROM Map

206

 

 

12.3.2

EEPROM Arbitration

206

 

12.4

Shared FLASH

207

 

 

12.4.1

FLASH Access Contention

207

 

12.5

LAN Disable

208

 

 

12.5.1

Overview

208

 

 

12.5.2

Values Sampled on Reset

208

 

 

12.5.3

Multi-Function Advertisement

209

 

 

12.5.4

Interrupt Use

209

 

 

12.5.5

Power Reporting

209

 

 

12.5.6

Summary

210

13

Register Descriptions

211

 

13.1

Introduction

211

 

13.2

Register Conventions

211

 

 

13.2.1

Memory and I/O Address Decoding

212

 

 

13.2.2

I/O-Mapped Internal Register, Internal Memory, and Flash

213

 

13.3 PCI-X Register Access Split

219

 

13.4

Main Register Descriptions

220

 

 

13.4.1

Device Control Register

220

 

 

13.4.2

Device Status Register

225

 

 

13.4.3

EEPROM/Flash Control & Data Register

228

 

 

13.4.4

EEPROM Read Register

230

 

 

13.4.5

Flash Access

232

 

 

13.4.6

Extended Device Control Register

233

 

 

13.4.7

MDI Control Register

238

 

 

13.4.8

Flow Control Address Low

279

 

 

13.4.9

Flow Control Address High

279

 

 

13.4.10

Flow Control Type

280

 

 

13.4.11

VLAN Ether Type

280

 

 

13.4.12

Flow Control Transmit Timer Value

281

 

 

13.4.13

Transmit Configuration Word Register

282

 

 

13.4.14

Receive Configuration Word Register

283

 

 

13.4.15

LED Control

285

 

 

13.4.16

Packet Buffer Allocation

288

 

 

13.4.17

Interrupt Cause Read Register

289

 

 

13.4.18

Interrupt Throttling Register

291

 

 

13.4.19

Interrupt Cause Set Register

292

 

 

13.4.20

Interrupt Mask Set/Read Register

293

 

 

13.4.21

Interrupt Mask Clear Register

294

 

 

13.4.22

Receive Control Register

296

 

 

13.4.23

Flow Control Receive Threshold Low

300

 

 

13.4.24

Flow Control Receive Threshold High

301

x

 

 

Software Developer’s Manual

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Intel PCI-X, Intel Gigabit Ethernet Controllers manual 203