80220 Datasheet, PDF (3/91 Pages) LSI Computer Systems – 100BASE-TX/10BASE-T Ethernet Media Interface Adapter

80220 / 80221 TABLE OF CONTENTS
1.0 Pin Description
2.0 Block Diagram
3.0 Functional Description
3.1 General
3.2 Differences between 80220 and 80221
3.3 Controller Interface
3.3.1 General
3.3.2 MII - 100 Mbps
3.3.3 MII - 10 Mbps
3.3.4 FBI - 100 Mbps
3.3.5 Selection of MII or FBI
3.3.6 MII Disable
3.3.7 Receive Output High Impedance Control
3.3.8 TXEN to CRS Loopback Disable
3.4 Encoder
3.4.1 4B5B Encoder - 100 Mbps
3.4.2 Manchester Encoder - 10 Mbps
3.4.3 Encoder Bypass
3.5 Decoder
3.5.1 4B5B Decoder
3.5.2 Manchester Decoder
3.5.3 Decoder Bypass
3.5 Clock and Data Recovery
3.5.1 Clock Recovery - 100 Mbps
3.5.2 Data Recovery - 100 Mbps
3.5.3 Clock Recovery - 10 Mbps
3.5.4 Data Recovery - 10 Mbps
3.6 Scrambler
3.6.1 100 Mbps
3.6.2 10 Mbps
3.6.3 Scrambler Bypass
3.7 Descrambler
3.7.1 100 Mbps
3.7.2 10 Mbps
3.7.3 Descrambler Bypass
3.8 Twisted Pair Transmitter
3.8.1 100 Mbps
3.8.2 10 Mbps
3.8.3 Transmit Level Adjust
3.8.4 Transmit Rise and Fall Time Adjust
3.8.5 STP (150 Ohm) Cable Mode
3.8.6 Transmit Activity Indication
3.8.7 Transmit Disable
3.8.8 Transmit Powerdown
80220/80221
3.9 Twisted Pair Receiver
3.9.1 Receiver - 100 Mbps
3.9.2 Receiver - 10 Mbps
3.9.3 TP Squelch - 100 Mbps
3.9.4 TP Squelch - 10 Mbps
3.9.5 Equalizer Disable
3.9.6 Receive Level Adjust
3.9.7 Receive Activity Indication
3.10 Collision
3.10.1 100 Mbps
3.10.2 10 Mbps
3.10.3 Collision Test
3.10.4 Collision Indication
3.11 Start of Packet
3.11.1 100 Mbps
3.11.2 10 Mbps
3.12 End of Packet
3.12.1 100 Mbps
3.12.2 10 Mbps
3.13 Link Integrity & AutoNegotiation
3.13.1 General
3.13.2 10BaseT Link Integrity Algorithm - 10 Mbps
3.13.3 100BaseTX Link Integrity
Algorithm - 100 Mbps
3.13.4 AutoNegotiation Algorithm
3.13.5 AutoNegotiation Outcome Indication
3.13.6 AutoNegotiation Status
3.13.7 AutoNegotiation Enable
3.13.8 AutoNegotiation Reset
3.13.9 Link Indication
3.13.10 Link Disable
3.13.11 100BaseT4 Capability
3.14 Jabber
3.14.1 100 Mbps
3.14.2 10 Mbps
3.14.3 Jabber Disable
3.15 Receive Polarity Correction
3.15.1 100 Mbps
3.15.2 10 Mbps
3.15.3 Autopolarity Disable
3.16 Full Duplex Mode
3.16.1 100 Mbps
3.16.2 10 Mbps
3.16.3 Full Duplex Indication
3.17 100 / 10 Mbps Selection
3.17.1 General
3.17.2 100 / 10 Mbps Indication
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MD400159/E