Intel GD82559ER manual 10BASE-T Functionality, 4 100BASE-TX Collision Detection

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Networking Silicon — GD82559ER

6.1.4100BASE-TX Collision Detection

100BASE-TX collisions in half duplex mode only are detected similarly to 10BASE-T collision detection, via simultaneous transmission and reception.

6.1.5100BASE-TX Link Integrity and Auto-Negotiation Solution

The 82559 Auto-Negotiation function automatically configures the device to the technology, media, and speed to operate with its link partner. Auto-Negotiation is widely described in IEEE specification 802.3u, clause 28. The PHY unit supports 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half duplex, and 100BASE-TX full duplex.

The PHY unit has two Physical Media Attachment (PMA) technologies with its link integrity function, 10BASE-T and 100BASE-TX.

6.1.5.1Link Integrity

In 100BASE-TX, the link integrity function is determined by a stable signal status coming from the TP-PMD block. Signal status is asserted when the PMD detects breaking squelch energy and the right bit error rate according to the ANSI specification.

6.1.5.2Auto-Negotiation

The PHY unit fully supports IEEE 802.3u, clause 28. The technology, 10BASE-T or 100BASE- TX, is determined by the Auto-Negotiation result.

Speed and duplex auto-select are functions of Auto-Negotiation. However, these parameters may be manually configured via the MII management interface (MDI registers).

6.1.6Auto 10/100 Mbps Speed Selection

The MAC may either allow the PHY unit to automatically select its operating speed or force the PHY into 10 Mbps or 100 Mbps mode. The Management Data Interface (MDI) can control the PHY unit speed mode.

The PHY unit auto-select function determines the operation speed of the media based on the link integrity pulses it receives. If no Fast Link Pulses (FLPs) are detected and Normal Link Pulses (NLPs) are detected, the PHY unit defaults to 10 Mbps operation. If the PHY unit detects a speed change, it dynamically changes its transmit clock and receive clock frequencies to the appropriate value. This change takes a maximum of five milliseconds.

6.210BASE-T Functionality

6.2.110BASE-T Transmit Clock Generation

The 20 MHz and 10 MHz clocks needed for 10BASE-T are synthesized from the external 25 MHz crystal or oscillator. The PHY unit provides the transmit clock and receive clock to the internal MAC at 2.5 MHz.

Datasheet

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Contents GD82559ER Fast Ethernet PCI Controller Product FeaturesMar First release Revision DescriptionContents PCI Configuration Registers Electrical and Timing Specifications GD82559ER Networking Silicon Datasheet Suggested Reading IntroductionGD82559ER Overview GD82559ER Networkin g Silicon Datasheet Parallel Subsystem Overview GD82559ER Architectural OverviewGD82559ER Networkin g Silicon Fifo Subsystem Overview10/100 Mbps Physical Layer Unit 10/100 Mbps Serial CSMA/CD Unit OverviewGD82559ER Networkin g Silicon Datasheet Address and Data Signals Signal DescriptionsSignal Type Definitions PCI Bus Interface SignalsInterface Control Signals System and Power Management Signals Local Memory Interface SignalsTestability Port Signals PHY Signals GD82559ER Networkin g Silicon Datasheet D3 to D0 Software Selective GD82559ER Media Access Control Functional Description82559ER Initialization Initialization Effects on 82559ER Units1.1 82559ER Bus Slave Operation Control/Status Register CSR AccessesPCI Interface 1 82559ER Bus OperationsCSR I/O Read Cycle Flash Buffer Read Cycle Flash Buffer AccessesFlash Buffer Write Cycle Retry Premature Accesses1.2 82559ER Bus Master Operation Error HandlingMemory Read Burst Cycle Memory Write and Invalidate Read Align Power Management Event Signal Clockrun Signal4.3 D2 Power State Power States4.1 D0 Power State 4.2 D1 Power StatePCI CLK 4.4 D3 Power StateUnderstanding Power Requirements Power State Conditions 100 Mbs 10 MbsPower State Link 82559ER Functionality Auxiliary Power SignalAlternate Reset Signal Isolate SignalIsolate Signal Behavior to PCI Power Good Signal PCI Reset SignalInterestin g Packet Events Wake-up EventsLink Status Change Event Parallel Flash InterfaceSerial Eeprom Interface Subsystem ID Word IA ByteALL 10/100 Mbps CSMA/CD UnitEeprom Words Field Descriptions Bits Name DescriptionLong Frame Reception Full DuplexFlow Control Address Filtering ModificationsMedia Independent Interface MII Management Interface Test Function Description Asynchronous Test ModeGD82559ER Test Port Functionality IntroductionChain Order TriStateNand Tree Nand Tree ChainsAD9 STOP# FLD2 GNT# FLD3 PERR# FLD4 PAR FLD5FLD6 FLD7GD82559ER Networkin g Silicon Datasheet 2 100BASE-TX Transmit Blocks GD82559ER Physical Layer Functional Description100BASE-TX PHY Unit 1 100BASE-TX Transmit Clock GenerationInvalid 2.2 100BASE-TX Scrambler and MLT-3 EncoderVendor Model/Type 2.3 100BASE-TX Transmit FramingTransmit Driver Magnetics Modules3 100BASE-TX Receive Blocks Auto 10/100 Mbps Speed Selection 5 100BASE-TX Link Integrity and Auto-Negotiation Solution10BASE-T Functionality 4 100BASE-TX Collision Detection2.2 10BASE-T Driver and Filter 2 10BASE-T Transmit Blocks3 10BASE-T Receive Blocks 2.1 10BASE-T Manchester Encoder6 10BASE-T Jabber Control Function Auto-Negotiation Functionality4 10BASE-T Collision Detection 5 10BASE-T Link IntegrityParallel Detect and Auto-Negotiation DescriptionAuto-Negotiation and Parallel Detect LED DescriptionLiled T L E D Two and Three LED Schematic DiagramPCI Vendor ID and Device ID Registers PCI Configuration RegistersLAN Ethernet PCI Configuration Space PCI Command Register PCI Command Register Bits PCI Command RegisterPCI Status Register PCI Status Register Bits PCI Status RegisterPCI Cache Line Size Register PCI Revision ID RegisterPCI Class Code Register PCI Base Address Registers PCI Latency TimerPCI Header Type Expansion ROM Base Address Register CSR Memory Mapped Base Address RegisterCSR I/O Mapped Base Address Register Flash Memory Mapped Base Address RegisterER ID Fields Programming PCI Subsystem Vendor ID and Subsystem ID RegistersCapability Pointer Interrupt Line RegisterMaximum Latency Register Power Management Capabilities RegisterInterrupt Pin Register Minimum Grant RegisterPower Management Control and Status Register Power Management Control/Status Register PmcsrData Select Data Scale Data Reported Data RegisterEthernet Data Register D16 D15 Lower Word Offset Control/Status RegistersLAN Ethernet Control/Status Registers D31System Control Block Status Word Flash Control Register System Control Block Command WordSystem Control Block General Pointer PortEarly Receive Interrupt Receive Direct Memory Access Byte CountPower Management Driver Register Power Management Driver RegisterGeneral Status Register General Control RegisterGeneral Status Register General Control RegisterCounter Description Statistical CountersER Statistical Counters Frame indicator, they are not counted GD82559ER Networking Silicon Datasheet Register 0 Control Register Bit Definitions Bits Name Description DefaultPHY Unit Registers MDI Registers 0Register 1 Status Register Bit Definitions Value 0154H Bits Name Description Default 150Register 2 PHY Identifier Register Bit Definitions Register 3 PHY Identifier Register Bit Definitions10BASE-T MDI Registers 8MDI Register 16 100BASE-TXRegister 17 PHY Unit Special Control Bit Definitions Bits Register 22 Receive Symbol Error Counter Bit DefinitionsRegister 18 PHY Address Register Register 27 PHY Unit Special Control Bit Definitions Register 23 100BASE-TX Receive Premature End of Frame ErrorCounter Bit Definitions Register 26 Equalizer Control and Status Bit DefinitionsGD82559ER Networking Silicon Datasheet PCI Interface DC Specifications Electrical and Timing SpecificationsDC Specifications General DC SpecificationsBASE-TX Voltage/Current Characteristics Flash/EEPROM Interface DC SpecificationsLED Voltage/Current Characteristics VCC/2 BASE-T Voltage/Current CharacteristicsSymbol Parameter AC Specifications for PCI Signaling AC Specifications10.4.1.2 X1 Specifications Timing SpecificationsClocks Specifications PCI Clock SpecificationsMeasurement and Test Conditions Symbol PCI Level UnitsTiming Parameters PCI Timing Parameters Symbol Parameter Min Max UnitsPCI Timings Flash Interface TimingsFlash Timing Parameters Eeprom Timing Parameters Eeprom Interface TimingsBASE-T NLP Timing Parameters Symbol Parameter Condition Min Typ Max UnitsSymbol Parameter Min Typ Max PHY TimingsTDP/TDN Differential HLS Data 1400 Output Peak Jitter Symbol Parameter Condition Min Typ Max Units T64GD82559ER Networking Silicon Datasheet Package Information Package and Pinout InformationPin Name Pinout Information12.2.1 GD82559ER Pin Assignments GD82559ER Pin AssignmentsFLA0 STOP# INTA# DEVSEL# VCC VSSPERR# GNT# VCC FLA1GD82559ER Ball Grid Array Diagram 12.2.2 GD82559ER Ball Grid Array Diagram

GD82559ER specifications

The Intel GD82559ER is a highly regarded network interface controller (NIC) designed for use in various computing environments, primarily for stable connectivity in both desktop and server applications. Released as part of the 82559 family of Ethernet controllers, the GD82559ER features advanced technologies that enhance performance, reliability, and manageability.

One of the standout features of the 82559ER is its ability to support both 10/100 Mbps Ethernet. This dual capability allows the controller to operate in a wide range of network settings, making it adaptable to legacy systems while also providing support for modern Ethernet standards. This versatility is crucial for organizations looking to maintain operational effectiveness without the need for immediate upgrades to their existing infrastructure.

The GD82559ER employs a PCI interface, which allows it to connect with various devices and motherboards easily, making it a go-to choice for manufacturers aiming for integration in their systems. It also includes features like Auto-Negotiation, enabling the NIC to automatically detect and select the appropriate speed and duplex mode for optimal performance. This capability is essential in dynamic networking environments, where devices from various generations coexist.

Power management is another critical aspect of the GD82559ER. The controller supports advanced power-saving features like PCI Power Management, reducing energy consumption during low-usage periods. This not only contributes to lower operational costs but also aligns with modern eco-friendly initiatives in technology.

Additionally, the GD82559ER comes equipped with advanced diagnostics and monitoring capabilities. This enhances the network's manageability by allowing administrators to track performance metrics and diagnose issues effectively. Through its onboard diagnostics, the controller aids in ensuring a stable network connection, allowing for timely interventions when issues arise.

The controller is also designed with a robust architecture that supports various operating systems, facilitating a broad implementation across different platforms. As a result, the GD82559ER has become a reliable option for system builders and enterprises focused on building dependable networking solutions.

Overall, the Intel GD82559ER is a versatile, high-performance network interface controller that continues to serve as a foundational component for computer systems that require efficient, reliable networking capabilities. Its combination of technologies and features makes it a popular choice in diverse computing environments.
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