Intel 82555 - Manual (Page 4)

82555 — Networking Silicon
iv Datasheet
Contents
5.3.3 10BASE-T Error Detection and Reporting ................................................. 22
5.4 10BASE-T Collision Detection....................................................................................... 22
5.5 10BASE-T Link Integrity ................................................................................................ 22
5.6 10BASE-T Jabber Control Function .............................................................................. 22
5.7 10BASE-T Full Duplex .................................................................................................. 23
6.0 REPEATER MODE .................................................................................................................... 25
6.1 Special Repeater Features............................................................................................ 25
6.2 Connectivity................................................................................................................... 25
7.0 MANAGEMENT DATA INTERFACE.......................................................................................... 27
7.1 MDI Frame Structure..................................................................................................... 27
7.2 MDI Registers................................................................................................................ 28
7.2.1 MDI Registers 0 - 7 .................................................................................... 28
7.2.2 MDI Registers 8 - 15 .................................................................................. 31
7.2.3 MDI Registers 16 - 31 ................................................................................ 31
8.0 AUTO-NEGOTIATION FUNCTIONALITY.................................................................................. 35
8.1 Description .................................................................................................................... 35
8.2 Parallel Detect and Auto-Negotiation ............................................................................ 36
9.0 LED DESCRIPTIONS ................................................................................................................ 39
10.0 RESET AND MISCELLANEOUS TEST MODES....................................................................... 41
10.1 Reset ............................................................................................................................. 41
10.2 Loopback....................................................................................................................... 41
10.3 Scrambler Bypass ......................................................................................................... 41
10.4 Test Port........................................................................................................................ 41
11.0 ELECTRICAL SPECIFICATIONS AND TIMING PARAMETERS .............................................. 43
11.1 Absolute Maximum Ratings .......................................................................................... 43
11.2 General Operating Conditions ...................................................................................... 43
11.3 DC Characteristics ........................................................................................................ 43
11.3.1 MII DC Characteristics .............................................................................. 43
11.3.2 10BASE-T Voltage/Current DC Characteristics ........................................ 43
11.3.3 100BASE-TX Voltage/Current DC Characteristics ................................... 44
11.4 AC Characteristics......................................................................................................... 45
11.4.1 MII Clock Specifications............................................................................. 45
11.4.2 MII Timing Parameters .............................................................................. 46
11.4.3 Repeater Mode Timing Parameters .......................................................... 47
11.4.4 Transmit Packet Timing Parameters ......................................................... 48
11.4.5 Squelch Test Timing Parameters .............................................................. 48
11.4.6 Jabber Timing Parameters ........................................................................ 49
11.4.7 Receive Packet Timing Parameters .......................................................... 49
11.4.8 10BASE-T Normal Link Pulse (NLP) Timing Parameters ......................... 50
11.4.9 Auto-Negotiation Fast Link Pulse (FLP) Timing Parameters .................... 50
11.4.10 Reset Timing Parameters ......................................................................... 51
11.4.11 X1 Clock Specifications ............................................................................ 51
11.4.12 100BASE-TX Transmitter AC Specification .............................................. 52
12.0 82555 PACKAGE INFORMATION............................................................................................. 53