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V1.03
Table of Contents
Chapter 1 Product Overview........................................................................................1-1
1.1
Overview..........................................................................................................1-1
1.2
Features............................................................................................................1-2
1.3
Applications.....................................................................................................1-2
1.4
Block Diagram.................................................................................................1-3
1.5
Abbreviations...................................................................................................1-3
1.6
Conventions.....................................................................................................1-5
1.6.1
Data Lengths............................................................................................1-5
1.6.2
Pin Types..................................................................................................1-5
1.6.2
Register Types..........................................................................................1-5
Chapter 2 Interface Description...................................................................................2-1
2.1
Pin Diagram.....................................................................................................2-1
2.2
Pin Description by Function............................................................................2-2
2.2.1
Twisted Pair Interface..............................................................................2-2
2.2.2
5th Port (MII) Interfaces..........................................................................2-2
2.2.3
6th Port (MII) Interfaces..........................................................................2-3
2.2.4
LED Interface...........................................................................................2-5
2.2.5
EEPROM/Management Interface............................................................2-6
2.2.6
Power/Ground, 48 pins............................................................................2-6
2.2.7
Miscellaneous ..........................................................................................2-6
Chapter 3 Function Description...................................................................................3-1
3.1
Functional Descriptions...................................................................................3-1
3.2
10/100M PHY Block.......................................................................................3-1
3.3
100Base-X Module..........................................................................................3-1
3.4
100Base-X Receiver........................................................................................3-2
3.4.1
A/D Converter..........................................................................................3-2
3.4.2
Adaptive Equalizer and timing Recovery Module ...................................3-2
3.4.3
NRZI/NRZ and Serial/Parallel Decoder..................................................3-2
3.4.4
Data De-scrambling.................................................................................3-3
3.4.5
Symbol Alignment....................................................................................3-3
3.4.6
Symbol Decoding.....................................................................................3-3
3.4.7
Valid Data Signal.....................................................................................3-3
3.4.8
Receive Errors .........................................................................................3-4
3.4.9
100Base-X Link Monitor..........................................................................3-4
3.4.10
Carrier Sense...........................................................................................3-4
3.4.11
Bad SSD Detection...................................................................................3-4
3.4.12
Far-End Fault..........................................................................................3-5
3.5
100Base-TX Transceiver.................................................................................3-5
3.5.1
Transmit Drivers......................................................................................3-5
3.5.2
Twisted-Pair Receiver..............................................................................3-5
3.6
10Base-T Module.............................................................................................3-5
3.6.1
Operation Modes .....................................................................................3-6
3.6.2
Manchester Encoder/Decoder.................................................................3-6
3.6.3
Transmit Driver and Receiver .................................................................3-6
3.6.4
Smart Squelch..........................................................................................3-6
ADM6996F
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