82551QM Datasheet, PDF (3/120 Pages) Intel Corporation – Fast Ethernet Multifunction PCI/CardBus Controller

Networking Silicon — 82551QM
Contents
1.0
Introduction......................................................................................................................... 1
1.1 Overview ............................................................................................................... 1
1.2 Byte Ordering ........................................................................................................ 1
1.3 References ............................................................................................................ 1
1.4 Product Ordering Codes........................................................................................ 2
2.0
Architectural Overview ....................................................................................................... 3
2.1 Parallel Subsystem Overview................................................................................ 3
2.2 FIFO Subsystem Overview ................................................................................... 4
2.3 Manageability Subsystem Overview ..................................................................... 4
2.4 10/100 Mbps Serial CSMA/CD Unit Overview ......................................................4
2.5 10/100 Mbps Physical Layer Unit.......................................................................... 4
3.0
Performance Enhancements.............................................................................................. 5
3.1 Multiple Priority Transmit Queues ......................................................................... 5
3.2 Early Release ........................................................................................................ 5
3.3 Hardware Integrity Support ................................................................................... 6
3.4 Management Data Interface MDI/MDI-X Feature.................................................. 6
4.0
Signal Descriptions.............................................................................................................7
4.1 Signal Type Definitions ......................................................................................... 7
4.2 PCI Bus and CardBus Interface Signals ............................................................... 8
4.2.1 Address and Data Signals ....................................................................... 8
4.2.2 Interface Control Signals ......................................................................... 8
4.2.3 System and Power Management Signals ............................................... 9
4.3 Local Memory Interface Signals .......................................................................... 10
4.4 System Management Bus (SMB) Interface Signals ........................................... 12
4.5 Test Port Signals ................................................................................................ 13
4.6 PHY Signals ....................................................................................................... 13
4.7 Power and Ground Signals ................................................................................. 14
5.0
Media Access Control Functional Description.................................................................. 15
5.1 Device Initialization..............................................................................................15
5.1.1 Initialization Effects................................................................................. 15
5.1.2 Initialization Effects on TCO Functionality.............................................. 16
5.2 PCI and CardBus Interface ................................................................................. 16
5.2.1 Bus Operations....................................................................................... 16
5.2.2 Clock Run Signal.................................................................................... 25
5.2.3 Power Management Event and Card Status Change Signals................ 25
5.3 PCI Power Management ..................................................................................... 26
5.3.1 Power States .......................................................................................... 26
5.3.2 Wake-up Events ..................................................................................... 30
5.4 CardBus Power Management ............................................................................. 31
5.5 Wake on LAN (Preboot Wake-up)....................................................................... 31
5.6 Parallel Flash/Modem Interface........................................................................... 32
5.7 Serial EEPROM Interface.................................................................................... 33
5.8 10/100 Mbps CSMA/CD Unit............................................................................... 35
Datasheet
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