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Datasheet v
Networking Silicon — 82540EP
Contents
1.0 Introduction.........................................................................................................................1
1.1 Document Scope...................................................................................................3
1.2 Reference Documents...........................................................................................3
1.3 Product Code ........................................................................................................3
2.0 Features of the 82540EP Gigabit Ethernet Controller........................................................5
2.1 PCI Features .........................................................................................................5
2.2 MAC Specific Features..........................................................................................5
2.3 PHY Specific Features ..........................................................................................6
2.4 Host Offloading Features ......................................................................................6
2.5 Manageability Features.........................................................................................7
2.6 Additional Device Features ...................................................................................8
2.7 Technology Features.............................................................................................8
3.0 Signal Descriptions.............................................................................................................9
3.1 Signal Type Definitions..........................................................................................9
3.2 PCI Bus Interface ..................................................................................................9
3.2.1 PCI Address, Data and Control Signals ...................................................9
3.2.2 Arbitration Signals ..................................................................................11
3.2.3 Interrupt Signal .......................................................................................11
3.2.4 System Signals.......................................................................................11
3.2.5 Error Reporting Signals..........................................................................11
3.2.6 Power Management Signals ..................................................................12
3.2.7 Impedance Compensation Signals.........................................................12
3.2.8 SMB Signals...........................................................................................12
3.3 EEPROM and Serial FLASH Interface Signals ...................................................12
3.4 Miscellaneous Signals.........................................................................................13
3.4.1 LED Signals............................................................................................13
3.4.2 Other Signals..........................................................................................13
3.5 PHY Signals ........................................................................................................14
3.5.1 Crystal Signals .......................................................................................14
3.5.2 Analog Signals .......................................................................................14
3.6 Test Interface Signals..........................................................................................15
3.7 Power Supply Connections .................................................................................15
3.7.1 Digital Supplies.......................................................................................15
3.7.2 Analog Supplies .....................................................................................15
3.7.3 Ground and No Connects.......................................................................16
3.7.4 Control Signals.......................................................................................16
4.0 Voltage, Temperature, and Timing Specifications............................................................17
4.1 Absolute Maximum Ratings.................................................................................17
4.2 Recommended Operating Conditions .................................................................17
4.3 DC Specifications................................................................................................18
4.4 AC Characteristics...............................................................................................21
4.5 Timing Specifications ..........................................................................................22
4.5.1 PCI Bus Interface ...................................................................................22
4.5.2 Link Interface Timing..............................................................................26