AM79C975VCW datasheet(294/304 Pages) AMD

294 / 304 page

294

Am79C973/Am79C975

P R E L I M INARY

Numerics

10 Mbps Receive (RX±) Timing

Diagram . . . . . . . . . . . . . . . . . . . . . . . . .233

10 Mbps Transmit (TX±) Timing

Diagram . . . . . . . . . . . . . . . . . . . . . . . . .233

10/100 Media Access Control . . . . . . . . . . .70

10/100 PHY Unit Overview . . . . . . . . . . . .79

100BASE-FX (Fiber Interface) . . . . . . . . . .79

100BASE-X Physical Layer . . . . . . . . . . . .79

100BASE-X Transmit and Receive

Data Paths of the Internal PHY . . . . . . . . .81

10BASE-T Block . . . . . . . . . . . . . . . . . . . . .86

10BASE-T Physical Layer . . . . . . . . . . . . . .79

EBDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Expansion Bus Data/Address . . . . . . . . . . . .34

16-Bit Software Model . . . . . . . . . . . . . . . .66

C/BE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

RXD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

TXD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

AD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

32-Bit Software Model . . . . . . . . . . . . . . . .67

EBD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

EBUA_EBA . . . . . . . . . . . . . . . . . . . . . . . . .33

Expansion Bus Data . . . . . . . . . . . . . . . . . . .34

Expansion Bus Upper

Address/ Expansion Bus Address . . . . . . .33

Absolute Maximum Ratings . . . . . . .224, 266

Address and Data . . . . . . . . . . . . . . . . . . . . .29

Address Match Logic . . . . . . . . . . . . . . . . .205

Address Matching . . . . . . . . . . . . . . . . . . . .75

Address Parity Error Response . . . . . . . . . .45

Address PROM Space . . . . . . . . . . . . . . . .109

Address Strobe/Expansion Bus

Output Enable . . . . . . . . . . . . . . . . . . . . . .34

Advanced Parity Error Handling . . . . . . . . .56

Alternative Method for Initialization . . . . .283

Am79C972 Bus Configuration

Registers . . . . . . . . . . . . . . . . . . . . . . . . .222

Am79C972 Programmable Registers . . . .220

Am79C973 EEPROM Map . . . . . . . . . . . .100

Am79C975 EEPROM Map . . . . . . . . . . . .101

Am79C975 PIN DESIGNATIONS . . . . . .245

AMD Flash Programming . . . . . . . . . . . . . .95

An Alternative LAPP Flow

Two-Interrupt Method . . . . . . . . . . . . .291

APDW Values . . . . . . . . . . . . . . . . . . . . . .186

APP 3 Buffer Grouping for

Two-interrupt Method . . . . . . . . . . . . . .293

AS_EBOE . . . . . . . . . . . . . . . . . . . . . . . . . .34

Automatic EEPROM Read Operation . . . . .98

Automatic Network Port Selection . . . . . .271

Automatic Network Selection

Exceptions . . . . . . . . . . . . . . . . . . . . . .271

External PHY Auto-Negotiable . . . . . .272

External PHY Not Auto-Negotiable . .271

Force External Reset . . . . . . . . . . . . . .272

Automatic Pad Generation . . . . . . . . . . . . . .74

Automatic Pad Stripping . . . . . . . . . . . . . . .76

Automatic PREAD EEPROM Timing . . .238

Auto-Negotiation . . . . . . . . . . . . . . . . .87, 271

Auto-Negotiation Advertisement

Auto-Negotiation Capabilities . . . . . . .88, 271

Auto-Negotiation Link Partner Ability

Auto-Poll External PHY Status Polling . . .270

Auxiliary Power . . . . . . . . . . . . . . . . . . . . .102

Basic Burst Read Transfer . . . . . . . . . . . . . .47

Basic Burst Write Transfer . . . . . . . . . . . . .49

BASIC FUNCTIONS . . . . . . . . . . . . . . . . .39

Basic Non-Burst Read Transfer . . . . . . . . . .47

Basic Non-Burst Write Transfer . . . . . . . . .49

Basic Operation . . . . . . . . . . . . . . . . . . . . .246

BCR Registers . . . . . . . . . . . . . . . . . .159, 161

BCR0

Master Mode Read Active . . . . . . . . . .157

BCR1

Master Mode Write Active . . . . . . . . .158

BCR16

I/O Base Address Lower . . . . . . . . . . .172

BCR19

EEPROM Control and Status . . . . . . .175

BCR20

Software Style . . . . . . . . . . . . . . . . . . .178

BCR28

Expansion Bus Port Address Lower

(Used for Flash/EPROM and

SRAM Accesses) . . . . . . . . . . . . . .183

INDEX

AM79C975VCW Datenblatt(PDF) 294 Page - Advanced Micro Devices

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