LAN83C180_01 Datasheet, PDF (3/22 Pages) SMSC Corporation – 10/100 Fast Ethernet PHY Transceiver

TABLE OF CONTENTS
FEATURES ................................................................................................................................................................... 1
GENERAL DESCRIPTION............................................................................................................................................ 1
PIN CONFIGURATION ................................................................................................................................................. 4
DESCRIPTION OF PIN FUNCTIONS ........................................................................................................................... 5
FUNCTIONAL DESCRIPTION...................................................................................................................................... 7
25MHz Reference Clock ............................................................................................................................................ 7
10BASE-T OPERATION ............................................................................................................................................... 7
10Mb/s Data Transfer on the MII ............................................................................................................................... 7
RX10 Clock Recovery................................................................................................................................................ 7
100MHz Synthesizer.................................................................................................................................................. 7
TX10 Pulse Shaper & Filter ....................................................................................................................................... 7
TX10 Latency............................................................................................................................................................. 7
RX10 Filter & RX10 Signal Detect ............................................................................................................................. 7
RX10 Latency ............................................................................................................................................................ 8
100BASE-TX OPERATION........................................................................................................................................... 8
100Mb/s Data Exchange on the MII Interface............................................................................................................ 8
125MHz Synthesizer.................................................................................................................................................. 8
TX100 PISO, Encoder and Scrambler ....................................................................................................................... 8
TX100 Driver.............................................................................................................................................................. 8
TX100 Latency........................................................................................................................................................... 8
RX100 Equalizer & Base-line Wander Correction ..................................................................................................... 8
RX100 Clock Recovery.............................................................................................................................................. 8
RX100 SIPO, Decoder and Descrambler .................................................................................................................. 9
RX100 Latency .......................................................................................................................................................... 9
100Mb/s Transmit Errors ........................................................................................................................................... 9
100Mb/s Receive Errors ............................................................................................................................................ 9
CONTROLS ................................................................................................................................................................ 10
Initialization (nRESET)............................................................................................................................................. 10
Reset Mode ............................................................................................................................................................. 10
Low-Power Mode ..................................................................................................................................................... 10
Loopback Mode ....................................................................................................................................................... 10
Repeater Mode ........................................................................................................................................................ 10
ICFG - Interrupt........................................................................................................................................................ 11
Auto-Negotiation Enable (ANEN)............................................................................................................................. 11
MII Management Interface ....................................................................................................................................... 11
MANAGEMENT .......................................................................................................................................................... 13
MAC Access to PHY Management Registers .......................................................................................................... 13
RESISTER SET ....................................................................................................................................................... 13
OPERATING CONDITIONS........................................................................................................................................ 18
MAXIMUM GUARANTEED RATINGS*.................................................................................................................... 18
DC ELECTRICAL CHARACTERISTICS .................................................................................................................. 18
DIFFERENTIAL OUTPUT........................................................................................................................................ 18
AC ELECTRICAL CHARACTERISTICS .................................................................................................................. 19
REFCLK................................................................................................................................................................... 19
RX_CLK ................................................................................................................................................................... 19
TX_CLK ................................................................................................................................................................... 19
MDC......................................................................................................................................................................... 19
EXTERNAL COMPONENTS....................................................................................................................................... 20
Connecting an External 25MHz Reference.............................................................................................................. 20
nRESET Pull-up Resistor......................................................................................................................................... 20
RX Input Decoupling................................................................................................................................................ 20
Crystal Oscillator...................................................................................................................................................... 20
PACKAGE DETAILS .................................................................................................................................................. 21
LAN83C180 REVISIONS ............................................................................................................................................ 22
SMSC DS – LAN83C180
Page 3
Rev. 08/24/2001