Intel 82540EP PCI Bus Interface Timing Measurement Conditions, Symbol Parameter PCI 66 MHz Unit

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82540EP — Networking Silicon

Figure 4. PCI Bus Interface Input Timing Measurement Conditions

VTH

PCI_CLK

VTH

InputVTEST

VTL

VTEST

VTL

TSU

Input

VTEST

VMAX

Valid

Table 16. PCI Bus Interface Timing Measurement Conditions

Symbol	Parameter	PCI 66 MHz	Unit
Symbol	Parameter	3.3 v	Unit
		3.3 v

VTH	Input measurement test voltage (high)	0.6*VCC	V

VTL	Input measurement test voltage (low)	0.2*VCC	V

VTEST	Output measurement test voltage	0.4*VCC	V

	Input signal slew rate	1.5	V/ns

Figure 5. TVAL (max) Rising Edge Test Load

Pin		Test
		Test
	1/2 inch max.	Point
	1/2 inch max.

25Ω

10 pF

Datasheet

Image 30

Contents 82540EP Gigabit Ethernet Controller Revision AprilDatasheet Date Revision 82540EP Networking Silicon Contents 82540EP Networking Silicon Introduction RX MAC MdioTX MAC Acpi LEDDocument Scope Reference DocumentsProduct Code 82540EP Networking Silicon Features Benefits PCI FeaturesMAC Specific Features Application flexibility for LAN on MotherboardPHY Specific Features HostOffloadingManageability Features A server management processorAdditional Device Features Technology FeaturesSymbol Type Name and Function Signal Type DefinitionsPCI Address, Data and Control Signals PCI Bus InterfaceIRDY# STS PARFRAME# STS TRDY# STSSystem Signals Arbitration SignalsInterrupt Signal Error Reporting SignalsImpedance Compensation Signals Eeprom and Serial Flash Interface SignalsPower Management Signals SMB SignalsMiscellaneous Signals LED SignalsOther Signals Analog XTAL1XTAL2 Digital Supplies Test Interface SignalsPower Supply Connections Analog SuppliesGND Control SignalsGround and No Connects CTRL15Absolute Maximum Ratingsa Absolute Maximum RatingsRecommended Operating Conditions Recommended Operating Conditions a Sheet 1Power Specifications D0a DC SpecificationsDC Characteristics Recommended Operating Conditions a Sheet 2Power Specifications D3cold Power Specifications Dr UninitializedPower Specifications Complete Subsystem O Characteristics Symbol Parameter Condition Min Typ Max= V SS AC Characteristics PCI Bus Interface Clock Parameters Timing Specifications PCI Bus InterfaceSymbol Parameter a PCI 66 MHz PCI 33 MHz Units Min Max TcycSymbol Parameter PCI 66MHz PCI 33 MHz Units Min Max PCI Bus Interface Timing ParametersVTH Symbol Parameter PCI 66 MHz UnitPCI Bus Interface Timing Measurement Conditions VTLPin Inch max Point 1kΩ 10 pFInch max Point 50 pF Link Interface Timing Eeprom InterfaceRise and Fall Times Yyww Device Identification82540EP Product Name Date CodeDatasheet Package InformationSymbol Parameter Value at specified airflow m/s Units Thermal SpecificationsThermal Characteristics Thermal resistance, junction-to-ambientPinout Information SMB Signals Power Management SignalsImpedance Compensation Signals Eeprom and Serial Flash Interface SignalsDigital Power Signals PHY SignalsTest Interface Signals Analog Power SignalsSignal Name Pin Grounds and No Connect SignalsSignal Names in Pin Order Sheet 1 Lanpwrgood SmbclkM66EN REQ# CBE3# Signal Names in Pin Order Sheet 2RST# SMBALRT# CLKRUN# Smbdata GNDSignal Names in Pin Order Sheet 3 IRDY# FRAME# CBE2# GNDCLK VIO TRDY# Zpcomp Signal Names in Pin Order Sheet 4 STOP# INTA# DEVSEL# ZncompPAR PERR# GNT# Signal Names in Pin Order Sheet 5 CBE1#CBE0# PCIAD5 GND PCIAD1 Clkview FLCE# Eesk PCIAD8 PCIAD6 PCIAD3 PCIAD2 Eecs GND Flso Eedi Signal Names in Pin Order Sheet 6PCIAD9 PCIAD7 PCIAD4 Vddo P12Visual Pin Reference C D E F G H J K L M N P