82551QM Datasheet, PDF (4/120 Pages) Intel Corporation – Fast Ethernet Multifunction PCI/CardBus Controller

82551QM — Networking Silicon
5.8.1 Full Duplex ............................................................................................. 35
5.8.2 Flow Control ........................................................................................... 36
5.8.3 Address Filtering Modifications .............................................................. 36
5.8.4 VLAN Support ........................................................................................ 36
5.9 Media Independent Interface (MII) Management Interface ................................. 36
6.0
Physical Layer Functional Description ............................................................................. 37
6.1 100BASE-TX PHY Unit ....................................................................................... 37
6.1.1 100BASE-TX Transmit Clock Generation .............................................. 37
6.1.2 100BASE-TX Transmit Blocks ............................................................... 37
6.1.3 100BASE-TX Receive Blocks ................................................................ 37
6.1.4 100BASE-TX Link Integrity Auto-Negotiation......................................... 38
6.2 10BASE-T PHY Functions .................................................................................. 38
6.2.1 10BASE-T Transmit Clock Generation................................................... 38
6.2.2 10BASE-T Transmit Blocks.................................................................... 38
6.2.3 10BASE-T Receive Blocks..................................................................... 38
6.2.4 10BASE-T Link Integrity and Full Duplex ............................................... 39
6.3 Auto-Negotiation ................................................................................................. 39
6.3.1 Description ............................................................................................. 39
6.3.2 Parallel Detect and Auto-Negotiation ..................................................... 39
6.4 LED Description .................................................................................................. 40
7.0
Modem Functionality ........................................................................................................ 43
7.1 PCI Address Mapping to the Modem .................................................................. 43
7.2 Modem Read and Write Cycles .......................................................................... 43
7.3 Modem and Preboot eXtension Environment Coexistence................................. 43
7.3.1 Programming Details.............................................................................. 44
7.3.2 Support Circuitry .................................................................................... 44
8.0
Manageability Functionality.............................................................................................. 45
8.1 Alert Standard Format......................................................................................... 45
8.2 Heartbeat ............................................................................................................ 46
8.3 Ping/Pong............................................................................................................ 46
8.4 Watchdog ............................................................................................................ 47
8.5 Advanced Power Management Modes ............................................................... 47
8.6 Polling ................................................................................................................. 47
8.7 Link Loss ............................................................................................................. 47
8.8 Acknowledge ....................................................................................................... 47
9.0
Configuration Registers.................................................................................................... 49
9.1 Function 0: LAN (Ethernet) PCI Configuration Space ......................................... 49
9.1.1 PCI Vendor ID and Device ID Registers ................................................ 49
9.1.2 PCI Command Register ......................................................................... 50
9.1.3 PCI Status Register................................................................................ 51
9.1.4 PCI Revision ID Register........................................................................ 52
9.1.5 PCI Class Code Register ....................................................................... 52
9.1.6 PCI Cache Line Size Register................................................................ 53
9.1.7 PCI Latency Timer ................................................................................. 53
9.1.8 PCI Header Type ................................................................................... 53
9.1.9 PCI Base Address Registers.................................................................. 53
9.1.10 Base Address Registry Summary .......................................................... 56
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Datasheet