adm6995 ETC-unknow, adm6995 Datasheet - Page 3

• Manufacturer Part Number: adm6995
• Description: Port 10/100 Mb/s Single Chip Ethiernet Switch Controller
• Manufacturer: ETC-unknow

ADMtek Inc.
ADM6995L
Table of Contents
Chapter 1 Product Overview ........................................................................................ 1-1
Chapter 2 Interface Description ................................................................................... 2-1
Chapter 3 Function Description ................................................................................... 3-1
1.1
1.2
1.3
1.4
1.5 Conventions ........................................................................................................... 1-5
2.1
2.2
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
1.5.1
1.5.2
1.5.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
3.4.8
3.4.9
3.4.10
3.4.11
3.4.12
3.5.1
3.5.2
3.6.1
3.6.2
3.6.3
3.6.4
Overview.......................................................................................................... 1-1
Features ............................................................................................................ 1-2
Block Diagram ................................................................................................. 1-3
Abbreviations................................................................................................... 1-3
Pin Diagram ..................................................................................................... 2-1
Pin Description by Function ............................................................................ 2-2
Functional Descriptions ................................................................................... 3-1
10/100M PHY Block ....................................................................................... 3-1
100Base-X Module .......................................................................................... 3-1
100Base-X Receiver ........................................................................................ 3-1
100Base-TX Transceiver ................................................................................. 3-5
10Base-T Module............................................................................................. 3-6
Carrier Sense.................................................................................................... 3-7
Jabber Function................................................................................................ 3-7
Data Lengths............................................................................................ 1-5
Pin Types.................................................................................................. 1-5
Register Types.......................................................................................... 1-5
Twisted Pair Interface.............................................................................. 2-2
Setting ...................................................................................................... 2-2
LED Interface........................................................................................... 2-3
EEPROM/Management Interface ............................................................ 2-4
Power/Ground, 48 pins............................................................................ 2-4
MISC ........................................................................................................ 2-5
A/D Converter.......................................................................................... 3-2
Adaptive Equalizer and timing Recovery Module ................................... 3-3
NRZI/NRZ and Serial/Parallel Decoder.................................................. 3-3
Data De-scrambling................................................................................. 3-3
Symbol Alignment .................................................................................... 3-3
Symbol Decoding ..................................................................................... 3-3
Valid Data Signal..................................................................................... 3-4
Receive Errors ......................................................................................... 3-4
100Base-X Link Monitor.......................................................................... 3-4
Carrier Sense ........................................................................................... 3-4
Bad SSD Detection................................................................................... 3-5
Far-End Fault .......................................................................................... 3-5
Transmit Drivers...................................................................................... 3-5
Twisted-Pair Receiver.............................................................................. 3-6
Operation Modes ..................................................................................... 3-6
Manchester Encoder/Decoder ................................................................. 3-6
Transmit Driver and Receiver ................................................................. 3-7
Smart Squelch .......................................................................................... 3-7
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