Intel PCI User Manual

Software Developer’s Manual

xiii

Contents

13.8.5

Receive Data FIFO Packet Count ....................................................366

13.8.6

Transmit Data FIFO Head Register..................................................366

13.8.7

Transmit Data FIFO Tail Register ....................................................367

13.8.8

Transmit Data FIFO Head Saved Register ......................................367

13.8.9

Transmit Data FIFO Tail Saved Register .........................................368

13.8.10

Transmit Data FIFO Packet Count ...................................................368

13.8.11

Packet Buffer Memory......................................................................369

General Initialization and Reset Operation

..................................................371

14.1

Introduction........................................................................................................371

14.2

Power Up State .................................................................................................371

14.3

General Configuration .......................................................................................371

14.4

Receive Initialization..........................................................................................372

14.5

Transmit Initialization.........................................................................................373
14.5.1

Signal Interface ................................................................................376

14.5.2

GMII/MII Features not Supported.....................................................377

14.5.3

Avoiding GMII Test Mode(s).............................................................378

14.5.4

MAC Configuration ...........................................................................378

14.5.5

Link Setup ........................................................................................379

14.6

PHY Initialization (10/100/1000 Mb/s Copper Media) .......................................380

14.7

Reset Operation ................................................................................................381

14.8

Initialization of Statistics ....................................................................................384

Diagnostics and Testability

...............................................................................385

15.1

Diagnostics........................................................................................................385
15.1.1

FIFO State........................................................................................385

15.1.2

FIFO Data.........................................................................................385

15.1.3

Loopback..........................................................................................385

15.2

Testability ..........................................................................................................386
15.2.1

EXTEST Instruction..........................................................................387

15.2.2

SAMPLE/PRELOAD Instruction .......................................................387

15.2.3

IDCODE Instruction..........................................................................387

15.2.4

BYPASS Instruction .........................................................................387

Appendix (Changes From 82544EI/82544GC)

............................................389

Appendix (82540EP/EM and 82545GM/EM Differences)

.........................391