Miscellaneous Signals, LED Signals, Other Signals | Intel 82540EP

			Networking Silicon — 82540EP

	Symbol	Type	Name and Function

	FL_CE#	O	FLASH Chip Enable Output. Used to enable FLASH device.

	FL_SCK	O	FLASH Serial Clock Output. The clock rate of the serial FLASH interface is
	FL_SCK	O	approximately 1 MHz.
			approximately 1 MHz.

	FL_SI	O	FLASH Serial Data Input. This pin is an output to the memory device.

	FL_SO	I	FLASH Serial Data Output. This pin is an input from the FLASH memory. It has an
	FL_SO	I	internal pullup device.
			internal pullup device.

3.4Miscellaneous Signals

3.4.1LED Signals

	Symbol	Type	Name and Function

	LED0 / LINK#	O	LED0 / LINK Up. Programmable LED indication. Defaults to indicate link
	LED0 / LINK#	O	connectivity.
			connectivity.

	LED1 / ACT#	O	LED1 / Activity. Programmable LED indication. Defaults to flash to indicate
	LED1 / ACT#	O	transmit or receive activity.
			transmit or receive activity.

	LED2 / LINK100#	O	LED2 / LINK 100. Programmable LED indication. Defaults to indicate link at
	LED2 / LINK100#	O	100 Mbps.
			100 Mbps.

	LED3 / LINK1000#	O	LED3 / LINK 1000. Programmable LED indication. Defaults to indicate link at
	LED3 / LINK1000#	O	1000 Mbps.
			1000 Mbps.

3.4.2Other Signals

	Symbol	Type	Name and Function

			Software Defined Pin. The Software Defined Pins are reserved and programmable
	SDP[7:6]		with respect to input and output capability. These default to input signals upon power-up
	SDP[7:6]	TS	but may be configured differently by the EEPROM. The upper four bits may be mapped
	SDP[1:0]	TS
	SDP[1:0]		to the General Purpose Interrupt bits if they are configured as input signals.

			Note: SDP5 is not included in the group of Software Defined Pins.

Datasheet

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Intel 82540EP manual Miscellaneous Signals, LED Signals, Other Signals

Contents

Revision April 82540EP Gigabit Ethernet Controller Datasheet Date Revision 82540EP Networking Silicon Contents 82540EP Networking Silicon Introduction Acpi LED MdioTX MAC RX MAC Reference Documents Document ScopeProduct Code 82540EP Networking Silicon Application flexibility for LAN on Motherboard PCI FeaturesMAC Specific Features Features Benefits HostOffloading PHY Specific Features A server management processor Manageability Features Technology Features Additional Device Features PCI Bus Interface Signal Type DefinitionsPCI Address, Data and Control Signals Symbol Type Name and Function TRDY# STS PARFRAME# STS IRDY# STS Error Reporting Signals Arbitration SignalsInterrupt Signal System Signals SMB Signals Eeprom and Serial Flash Interface SignalsPower Management Signals Impedance Compensation Signals LED Signals Miscellaneous SignalsOther Signals XTAL1 AnalogXTAL2 Analog Supplies Test Interface SignalsPower Supply Connections Digital Supplies CTRL15 Control SignalsGround and No Connects GND Recommended Operating Conditions a Sheet 1 Absolute Maximum RatingsRecommended Operating Conditions Absolute Maximum Ratingsa Recommended Operating Conditions a Sheet 2 DC SpecificationsDC Characteristics Power Specifications D0a Power Specifications Dr Uninitialized Power Specifications D3coldPower Specifications Complete Subsystem Symbol Parameter Condition Min Typ Max O Characteristics= V SS AC Characteristics Tcyc Timing Specifications PCI Bus InterfaceSymbol Parameter a PCI 66 MHz PCI 33 MHz Units Min Max PCI Bus Interface Clock Parameters PCI Bus Interface Timing Parameters Symbol Parameter PCI 66MHz PCI 33 MHz Units Min Max VTL Symbol Parameter PCI 66 MHz UnitPCI Bus Interface Timing Measurement Conditions VTH Inch max Point 1kΩ 10 pF PinInch max Point 50 pF Eeprom Interface Link Interface TimingRise and Fall Times Date Code Device Identification82540EP Product Name Yyww Package Information Datasheet Thermal resistance, junction-to-ambient Thermal SpecificationsThermal Characteristics Symbol Parameter Value at specified airflow m/s Units Pinout Information Eeprom and Serial Flash Interface Signals Power Management SignalsImpedance Compensation Signals SMB Signals Analog Power Signals PHY SignalsTest Interface Signals Digital Power Signals Lanpwrgood Smbclk Grounds and No Connect SignalsSignal Names in Pin Order Sheet 1 Signal Name Pin CLKRUN# Smbdata GND Signal Names in Pin Order Sheet 2RST# SMBALRT# M66EN REQ# CBE3# IRDY# FRAME# CBE2# GND Signal Names in Pin Order Sheet 3CLK VIO TRDY# Zpcomp STOP# INTA# DEVSEL# Zncomp Signal Names in Pin Order Sheet 4PAR PERR# GNT# CBE1# Signal Names in Pin Order Sheet 5CBE0# PCIAD5 GND PCIAD1 Clkview FLCE# Eesk Vddo P12 Signal Names in Pin Order Sheet 6PCIAD9 PCIAD7 PCIAD4 PCIAD8 PCIAD6 PCIAD3 PCIAD2 Eecs GND Flso Eedi C D E F G H J K L M N P Visual Pin Reference