Intel GD82559ER manual 2.2 100BASE-TX Scrambler and MLT-3 Encoder, Invalid

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GD82559ER — Networkin g Silicon

Table 3. 4B/5B Encoder

Symbol

5B Symbol Code

4B Nibble Code

 

 

 

E

11100

1110

 

 

 

F

11101

1111

 

 

 

I

11111

Inter Packet Idle Symbol

(No 4B)

 

 

 

 

 

J

11000

1st Start of Packet Symbol

0101

 

 

 

 

 

K

10001

2nd Start of Packet Symbol

0101

 

 

 

 

 

T

01101

1st End of Packet Symbol

 

 

 

R

00111

2nd End of Packet Symbol

and Flow Control

 

 

 

 

 

V

00000

INVALID

 

 

 

V

00001

INVALID

 

 

 

V

00010

INVALID

 

 

 

V

00011

INVALID

 

 

 

H

00100

INVALID

 

 

 

V

00101

INVALID

 

 

 

V

00110

INVALID

 

 

 

V

01000

INVALID

 

 

 

V

01100

INVALID

 

 

 

V

10000

PHY based Flow Control

 

 

 

V

11001

INVALID

 

 

 

6.1.2.2100BASE-TX Scrambler and MLT-3 Encoder

Data is scrambled in 100BASE-TX to reduce electromagnetic emissions during long transmissions of high-frequency data codes. The scrambler logic accepts 5 bits from the 4B/5B encoder block and presents the scrambled data to the MLT-3 encoder. The PHY unit implements the 11-bit stream cipher scrambler as adopted by the ANSI XT3T9.5 committee for UTP operation. The cipher equation used is:

X[n] = X[n-11] + X[n-9] (mod 2)

The encoder receives the scrambled Non-Return to Zero (NRZ) data stream from the Scrambler and encodes the stream into MLT-3 for presentation to the driver. MLT-3 is similar to NRZI coding, but three levels are output instead of two. There are three output levels: positive, negative and zero. When an NRZ “0” arrives at the input of the encoder, the last output level is maintained (either positive, negative or zero). When an NRZ “1” arrives at the input of the encoder, the output steps to the next level. The order of steps is negative-zero-positive-zero which continues periodically.

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Datasheet

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Contents Product Features GD82559ER Fast Ethernet PCI ControllerRevision Description Mar First releaseContents PCI Configuration Registers Electrical and Timing Specifications GD82559ER Networking Silicon Datasheet Suggested Reading IntroductionGD82559ER Overview GD82559ER Networkin g Silicon Datasheet GD82559ER Architectural Overview Parallel Subsystem OverviewFifo Subsystem Overview GD82559ER Networkin g Silicon10/100 Mbps Serial CSMA/CD Unit Overview 10/100 Mbps Physical Layer UnitGD82559ER Networkin g Silicon Datasheet Signal Descriptions Signal Type DefinitionsPCI Bus Interface Signals Address and Data SignalsInterface Control Signals Local Memory Interface Signals System and Power Management SignalsTestability Port Signals PHY Signals GD82559ER Networkin g Silicon Datasheet GD82559ER Media Access Control Functional Description 82559ER InitializationInitialization Effects on 82559ER Units D3 to D0 Software SelectiveControl/Status Register CSR Accesses PCI Interface1 82559ER Bus Operations 1.1 82559ER Bus Slave OperationCSR I/O Read Cycle Flash Buffer Accesses Flash Buffer Read CycleRetry Premature Accesses Flash Buffer Write CycleError Handling 1.2 82559ER Bus Master OperationMemory Read Burst Cycle Memory Write and Invalidate Read Align Clockrun Signal Power Management Event SignalPower States 4.1 D0 Power State4.2 D1 Power State 4.3 D2 Power State4.4 D3 Power State Understanding Power RequirementsPower State Conditions 100 Mbs 10 Mbs PCI CLKAuxiliary Power Signal Alternate Reset SignalIsolate Signal Power State Link 82559ER FunctionalityPCI Reset Signal Isolate Signal Behavior to PCI Power Good SignalWake-up Events Interestin g Packet EventsLink Status Change Event Parallel Flash InterfaceSerial Eeprom Interface Word IA Byte Subsystem ID10/100 Mbps CSMA/CD Unit Eeprom Words Field DescriptionsBits Name Description ALLFull Duplex Flow ControlAddress Filtering Modifications Long Frame ReceptionMedia Independent Interface MII Management Interface Asynchronous Test Mode GD82559ER Test Port FunctionalityIntroduction Test Function DescriptionTriState Nand TreeNand Tree Chains Chain OrderSTOP# FLD2 GNT# FLD3 PERR# FLD4 PAR FLD5 FLD6FLD7 AD9GD82559ER Networkin g Silicon Datasheet GD82559ER Physical Layer Functional Description 100BASE-TX PHY Unit1 100BASE-TX Transmit Clock Generation 2 100BASE-TX Transmit Blocks2.2 100BASE-TX Scrambler and MLT-3 Encoder Invalid2.3 100BASE-TX Transmit Framing Transmit DriverMagnetics Modules Vendor Model/Type3 100BASE-TX Receive Blocks 5 100BASE-TX Link Integrity and Auto-Negotiation Solution 10BASE-T Functionality4 100BASE-TX Collision Detection Auto 10/100 Mbps Speed Selection2 10BASE-T Transmit Blocks 3 10BASE-T Receive Blocks2.1 10BASE-T Manchester Encoder 2.2 10BASE-T Driver and FilterAuto-Negotiation Functionality 4 10BASE-T Collision Detection5 10BASE-T Link Integrity 6 10BASE-T Jabber Control FunctionDescription Parallel Detect and Auto-NegotiationLED Description Auto-Negotiation and Parallel DetectTwo and Three LED Schematic Diagram Liled T L E DPCI Vendor ID and Device ID Registers PCI Configuration RegistersLAN Ethernet PCI Configuration Space PCI Command Register PCI Command Register PCI Command Register BitsPCI Status Register PCI Status Register PCI Status Register BitsPCI Cache Line Size Register PCI Revision ID RegisterPCI Class Code Register PCI Base Address Registers PCI Latency TimerPCI Header Type CSR Memory Mapped Base Address Register CSR I/O Mapped Base Address RegisterFlash Memory Mapped Base Address Register Expansion ROM Base Address RegisterPCI Subsystem Vendor ID and Subsystem ID Registers Capability PointerInterrupt Line Register ER ID Fields ProgrammingPower Management Capabilities Register Interrupt Pin RegisterMinimum Grant Register Maximum Latency RegisterPower Management Control/Status Register Pmcsr Power Management Control and Status RegisterData Select Data Scale Data Reported Data RegisterEthernet Data Register Control/Status Registers LAN Ethernet Control/Status RegistersD31 D16 D15 Lower Word OffsetSystem Control Block Status Word System Control Block Command Word System Control Block General PointerPort Flash Control RegisterReceive Direct Memory Access Byte Count Power Management Driver RegisterPower Management Driver Register Early Receive InterruptGeneral Control Register General Status RegisterGeneral Control Register General Status RegisterCounter Description Statistical CountersER Statistical Counters Frame indicator, they are not counted GD82559ER Networking Silicon Datasheet Bits Name Description Default PHY Unit RegistersMDI Registers 0 Register 0 Control Register Bit DefinitionsRegister 1 Status Register Bit Definitions Bits Name Description Default 150 Register 2 PHY Identifier Register Bit DefinitionsRegister 3 PHY Identifier Register Bit Definitions Value 0154HMDI Registers 8 MDI Register 16100BASE-TX 10BASE-TRegister 17 PHY Unit Special Control Bit Definitions Bits Register 22 Receive Symbol Error Counter Bit DefinitionsRegister 18 PHY Address Register Register 23 100BASE-TX Receive Premature End of Frame Error Counter Bit DefinitionsRegister 26 Equalizer Control and Status Bit Definitions Register 27 PHY Unit Special Control Bit DefinitionsGD82559ER Networking Silicon Datasheet Electrical and Timing Specifications DC SpecificationsGeneral DC Specifications PCI Interface DC SpecificationsBASE-TX Voltage/Current Characteristics Flash/EEPROM Interface DC SpecificationsLED Voltage/Current Characteristics VCC/2 BASE-T Voltage/Current CharacteristicsSymbol Parameter AC Specifications AC Specifications for PCI SignalingTiming Specifications Clocks SpecificationsPCI Clock Specifications 10.4.1.2 X1 SpecificationsMeasurement and Test Conditions Symbol PCI Level UnitsTiming Parameters Symbol Parameter Min Max Units PCI TimingsFlash Interface Timings PCI Timing ParametersFlash Timing Parameters Eeprom Interface Timings Eeprom Timing ParametersSymbol Parameter Condition Min Typ Max Units Symbol Parameter Min Typ MaxPHY Timings BASE-T NLP Timing ParametersSymbol Parameter Condition Min Typ Max Units T64 TDP/TDN Differential HLS Data 1400 Output Peak JitterGD82559ER Networking Silicon Datasheet Package and Pinout Information Package InformationPinout Information 12.2.1 GD82559ER Pin AssignmentsGD82559ER Pin Assignments Pin NameSTOP# INTA# DEVSEL# VCC VSS PERR# GNT# VCCFLA1 FLA012.2.2 GD82559ER Ball Grid Array Diagram 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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