PCI Bus Interface Timing Measurement Conditions

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

Page 30

Image 30

Intel 82540EP manual PCI Bus Interface Timing Measurement Conditions, Symbol Parameter PCI 66 MHz Unit, Vth, Vtl, Vtest

Contents

82540EP Gigabit Ethernet Controller Revision April Datasheet Date Revision 82540EP Networking Silicon Contents 82540EP Networking Silicon Introduction RX MAC MdioTX MAC Acpi LED Document Scope Reference DocumentsProduct Code 82540EP Networking Silicon Features Benefits PCI FeaturesMAC Specific Features Application flexibility for LAN on Motherboard PHY Specific Features HostOffloading Manageability Features A server management processor Additional Device Features Technology Features Symbol Type Name and Function Signal Type DefinitionsPCI Address, Data and Control Signals PCI Bus Interface IRDY# STS PARFRAME# STS TRDY# STS System Signals Arbitration SignalsInterrupt Signal Error Reporting Signals Impedance Compensation Signals Eeprom and Serial Flash Interface SignalsPower Management Signals SMB Signals Miscellaneous Signals LED SignalsOther Signals Analog XTAL1XTAL2 Digital Supplies Test Interface SignalsPower Supply Connections Analog Supplies GND Control SignalsGround and No Connects CTRL15 Absolute Maximum Ratingsa Absolute Maximum RatingsRecommended Operating Conditions Recommended Operating Conditions a Sheet 1 Power Specifications D0a DC SpecificationsDC Characteristics Recommended Operating Conditions a Sheet 2 Power 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 Tcyc Symbol Parameter PCI 66MHz PCI 33 MHz Units Min Max PCI Bus Interface Timing Parameters VTH Symbol Parameter PCI 66 MHz UnitPCI Bus Interface Timing Measurement Conditions VTL Pin Inch max Point 1kΩ 10 pFInch max Point 50 pF Link Interface Timing Eeprom InterfaceRise and Fall Times Yyww Device Identification82540EP Product Name Date Code Datasheet Package Information Symbol Parameter Value at specified airflow m/s Units Thermal SpecificationsThermal Characteristics Thermal resistance, junction-to-ambient Pinout Information SMB Signals Power Management SignalsImpedance Compensation Signals Eeprom and Serial Flash Interface Signals Digital Power Signals PHY SignalsTest Interface Signals Analog Power Signals Signal Name Pin Grounds and No Connect SignalsSignal Names in Pin Order Sheet 1 Lanpwrgood Smbclk M66EN REQ# CBE3# Signal Names in Pin Order Sheet 2RST# SMBALRT# CLKRUN# Smbdata GND Signal 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 P12 Visual Pin Reference C D E F G H J K L M N P

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

Models: 82540EP

82540EP — Networking Silicon

Figure 4. PCI Bus Interface Input Timing Measurement Conditions

Table 16. PCI Bus Interface Timing Measurement Conditions

Symbol

Parameter

PCI 66 MHz

Unit

VTH

VTL

VTEST

Figure 5. TVAL (max) Rising Edge Test Load

Datasheet