AM79C973BKC AMD (ADVANCED MICRO DEVICES), AM79C973BKC Datasheet - Page 12
AM79C973BKC
Manufacturer Part Number
AM79C973BKC
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.AM79C973BKC.pdf
(304 pages)
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APPENDIX C: MEDIA INDEPENDENT INTERFACE (MII) . . . . . . . . . . . . . . . . . . . . 268
APPENDIX D: ALTERNATIVE METHOD FOR INITIALIZATION . . . . . . . . . . . . . . . 283
APPENDIX E: LOOK-AHEAD PACKET PROCESSING (LAPP) CONCEPT . . . . . 284
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Node ID Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Device Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Am79C975 EEPROM Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Am79C975 EEPROM Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Switching Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Auto-Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Automatic Network Port Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
External Address Detection Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
MII management registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Control Register (Register 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Status Register (Register 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Auto-Negotiation Advertisement Register (Register 4) . . . . . . . . . . . . . . . . . . . . . 276
Auto-Negotiation Link Partner Ability Register (Register 5) . . . . . . . . . . . . . . . . . 277
Switching Characteristics: Media Independent Interface . . . . . . . . . . . . . . . . . . . 278
Switching Waveforms: Media Independent Interface . . . . . . . . . . . . . . . . . . . . . . 279
Switching Waveforms: External Address Detection Interface . . . . . . . . . . . . . . . . 281
Switching Waveforms: Receive Frame Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Outline of LAPP Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
LAPP Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
LAPP Rules for Parsing Descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Some Examples of LAPP Descriptor Interaction . . . . . . . . . . . . . . . . . . . . . . . . . 289
Buffer Size Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
An Alternative LAPP Flow: Two-Interrupt Method . . . . . . . . . . . . . . . . . . . . . . . . 291
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