1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver FEATURES AND SPECIFICATIONS Features and Benefits 1000Base-T compliant, meets IEEE802.3z, ab specifications and is GBIC SFF-8053 Rev 5.5 compliant – For improved intermatability 1.63 Watt power requirement – Low heat output Hot pluggable – Eliminates need to power down to remove or install transceiver Zinc back shells – Improved EMI performance Auto-negotiation – Allows networking equipment to automatically determine and adjust to the required settings Automatic MDI crossover – Eliminates the need for crossover cables or cross-wired (MDIX) ports Link monitor – Detects loss of signal Serial ID – Allows individual identification of each GBIC transceiver Auto-Power shutdown – Saves energy Applications ■ Networking Equipment - Switches - Routers 74740 Reference Information Packaging: 1 Mates With: GBIC Cage 73847 series SCA-2 Receptacle 74065 series Electrical Voltage: 5v Current: 350mA Physical Zinc Diecast Backshell PCB Thickness: .062” Operating Temperature: 0 to 70° C The 1000Base-T RJ-45 Gigabit Ethernet GBIC copper transceiver is a high performance integrated duplex data link for bi-directional communication over Cat-5 copper cable. The hot pluggable feature allows changing to or from another GBIC compatible module without having to remove system power. Serial ID is included. ORDERING INFORMATION Order Number 74740-0001 74740-0002 74740-0003 Description RJ-45 1000Base-T GBIC Transceiver With Serial ID, Auto Negotiation On LOS GND RJ-45 1000Base-T GBIC Transceiver With Serial ID, Auto Negotiation On LOS Toggle RJ-45 1000Base-T GBIC Transceiver With Serial ID, Auto Negotiation Off LOS Toggle FEATURES Figure 1. RJ-45 GBIC 1000Base-T Application Host Board GBIC Card SERDES (e.g.) MAC TBI 1000Base-T Transceiver BCM5421S I²C Serial Interface GBIC Interface I²C Serial Interface MDC/ MDIO Transformer µC RJ-45 1000Base-T 1000BASE-T RJ-45 GBIC FEATURES 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver GBIC Mode When the internal gigabit Ethernet transceiver (PHY) is configured to GBIC mode, the PHY can interface directly with the host serial/deserial (SERDES) interface. The host interface transmits and receives serial data differentially at 1.25Gbps. The copper interface is full featured and advertises full/half duplex, and 1000Base-T wire speed. Auto-Negotiation Auto-Negotiation is supported over both the twisted pair copper link and SERDES interface as defined in the IEEE 802.3 standards and is performed as part of the initial set-up of the link. The copper link is negotiated according to the IEEE 802.3 Clause 28, and Clause 37 is used in the negotiation of the SERDES interface. The two interfaces advertise 1000Base-T full-duplex, and master/slave relationships. The master establishes the time control from its local clock source. The slave however recovers the clock from the received data stream. The GBIC application is limited to 1000Base-T wire speed only. Auto-Negotiation on the SERDES link is always restarted when a change is detected on copper link (see Link Monitor and Loss-of-Signal for further details). Automatic MDI Crossover The 1000Base-T GBIC transceiver performs a MDI crossover during Auto-Negotiation eliminating the need for crossover cables or crosswired (MDIX) ports. Loss of Signal - Link Monitor Following Auto-Negotiation, the master and slave begin sending data over the twisted pair link. The master and slave continuously monitor the copper link for quality of data. The link status bit is set after one microsecond of quality data. If the quality of copper link drops below factory PHY minimums, the GBIC will drop the SERDES link, and assert the LOS I/O interface (optional) in less than 200 milliseconds. Auto Power Savings Mode When the copper link is lost, the GBIC automatically enters a low power mode reducing the chip power requirements. Full power mode resumes once the copper link is re-established. Not Implemented in GBIC Auto-Negotiation Next page exchange and detection of remote faults are not auto-negotiated. AUTO-NEGOTIATION SUMMARY Auto-Negotiation Features Supported: General: SERDES Auto-Negotiation is restarted when a change is detected on the copper link Auto power savings mode when copper link is lost Copper RJ-45 Interface: Auto-Negotiation Copper GBIC speed is 1000Base-T only Full/Half duplex Automatic MDI Crossover Master/Slave relationships Pause flow control (see flow charts) Host SERDES Interface: Differential SERDES Interface at 1.25Gpbs Master/Slave relationships SERDES recovers the clock from the received data stream Pause flow control (see flow charts) Not Implemented in GBIC Auto-Negotiation: Next page exchange Detect remote fault 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver GBIC OPERATIONAL FLOWCHARTS (74740-0001) Auto-Negotiation Link Dropout Main Routine Start Yes LOS GND Disable SERDES Interface No Wait for Copper Auto-Neg to Complete Good Copper Link No Drop SERDES Link Yes Get Copper Auto-Neg Information Advertise to SERDES Enable SERDES Interface No Wait for SERDES Auto-Neg to Complete Yes Get SERDES Auto-Neg Information Advertise to Copper Restart Auto-Neg No Wait for Auto-Neg to Complete Yes Return Restart Auto-Negotiation GBIC OPERATIONAL FLOWCHARTS (74740-0002) Auto-Negotiation 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver Link Dropout Main Routine Start Yes LOS HIGH Disable SERDES Interface No Wait for Copper Auto-Neg to Complete Good Copper Link No LOS HIGH Yes Get SERDES Auto-Neg Information Advertise to Copper No Wait for SERDES Auto-Neg to Complete Yes Get SERDES Auto-Neg Information Advertise to Copper Restart Auto-Neg No Wait for Auto-Neg to Complete Yes Link is Good LOS LOW Return Drop SERDES Link Restart Auto-Negotiation GBIC OPERATIONAL FLOWCHARTS (74740-0003) Auto-Negotiation 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver Link Dropout Main Routine Start Yes Good Copper Link LOS HIGH No LOS HIGH Disable SERDES No Wait for Copper Auto-Neg to Complete Yes Get Copper Auto-Neg Information Advertise to SERDES Enable SERDES No Good Copper Link Yes Link is Good LOS LOW Return Restart Auto-Negotiation 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver AUTO-NEGOTIATION SOFTWARE SELECTIONS Through random I2C read commands, the host can change the auto-negotiation state of the GBIC. When auto-negotiation in the GBIC is off, the GBIC does not automatically query the host and advertise pause flow control on the copper interface. If the host requires advertisement of pause flow control and auto-negotiation is off, the host can set pause, and asymmetric pause using the defined I2C commands. Serial ID addresses 128-133 are used in the random I2C read commands. The read commands, and GBIC actions are defined in the I2C Command Table. I2C Command Table I2C Read Address Description 128 ( 0x80 ) GBIC Auto-Negotiation Status 129 ( 0x81 ) 130 ( 0x82 ) 131 ( 0x83 ) 132 ( 0x84 ) 133 ( 0x85 ) • Return Status Byte • Turn Auto-Negotiation ON • Restart Auto-Negotiation • Return Status Byte • Turn Auto-Negotiation OFF • Restart Auto-Negotiation • Return Status Byte • Clear Pause Flow Control • Clear Asymmetric Pause • Return Status Byte SERDES Pause Flow Control Advertisement • Set SERDES Pause Flow Control Bit Enable Auto-Negotiation Disable Auto-Negotiation Clear SERDES Pause Flow Control Advertisement (auto-negotiation off only) • Return Status Byte SERDES Asymmetric Pause Flow Control Advertisement • Set SERDES Asymmetric Pause Flow Control Bit (auto-negotiation off only) • Return Status Byte GBIC Status Byte Bit 7 6 5 4 3 2 1 0 GBIC Actions Description Reserved Reserved Reserved Copper has Advertised Asymmetric Pause Copper has Advertised Pause Host to Advertise Asymmetric Pause on Copper Host to Advertise Pause on Copper GBIC Auto Negotiation Status 1 = On / 0 = Off 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver ACTIVE PERFORMANCE SPECIFICATIONS Module Specifications – Recommended Operating Conditions PARAMETERS Storage Temperature Ambient Operating Temperature SYMBOL Tstg Ta MIN -40 0 Supply Voltage Supply Current Surge Current V DDR, V DDT Icc Isurge 4.75 GBIC Host Serial Interface (TX/RX) Data Input/Output Type Impedance (SERDES Interface) TYP MAX 85 70 UNITS ºC ºC NOTES 5.25 350 55 Vdc mA mA Vcc-ground Surge above steady state value ohms LVDS, AC coupled Differential 150 Transm itter (Input to GBIC) Input Voltage Receiver (Output to SERDES) Output Voltage Max Off Voltage Rise Time, 20%–80% Total Jitter Skew 400 2400 mVpp 875 1525 170 350 192 175 mVpp mVpp ps ps ps 100 200 msec 85 Link Dropout 74740-0001 From detection of loss of signal to SERDES disable Loss of Signal Tim ing 74740-0002, 74740-0003 RX_LOS assert delay t_loss_on 100 200 msec RX_LOS negate delay t_loss_off 3 3.5 sec From detection of loss of signal to assertion of RX_LOS From detection of presence of signal to negation of RX_LOS 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver RELIABILITY PREDICTION REPORT Temperature: 75°C Assem bly Nam e Part Num ber Failure Rate MTBF 1000Base-T Adapter Active Components Passive Components 74740-xxxx 0.309435 3,231,693 0.178609 5,598,828 0.130827 7,643,711 IMPEDANCE MATCHING AND POWER SUPPLY FILTERING Signal inputs/outputs on the GBIC transceiver modules are AC coupled and internally terminated to 75 ohms (TD+, TD-, RD+, RD-). Each leg of the differential pair was equally matched in length. Figure 2 shows the recommended power supply filtering network. Figure 2: Recommended Host Board Supply Filtering Network VccT VccR 0.1µF 0.1µF GBIC Module 1.0µH 10µF 1.0µH 0.1µF 10µF 5V GBIC HOST CONNECTOR PIN DESCRIPTIONS 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver PIN NAME PIN 1 RX_LOS DESCRIPTION Receiver Loss of Signal, logic high, open collector compatible, 4.7 K to 10 K Ohm pull-up to V DDT on host. See part number chart for details. PIN 2 RGND Receiver Ground PIN 3 RGND Receiver Ground PIN 4 MOD_DEF(0) GBIC module definition and presence, 4.7 K to 10 K Ohm pull-up to V DDT on host Signal SCL (Clock) of the 2-w ire serial ID interface, 4.7 K to 10 K Ohm pull- up to V DDT on host, 100KHz maximum clock rate. PIN 5 MOD_DEF(1) PIN 6 MOD_DEF(2) PIN 7 TX_DISABLE Signal SDA (Data) of the 2-w ire serial ID interface, 4.7 K to 10 K Ohm pull- up to V DDT on host TX_DISABLE is not implemented. Transmitter Disable, logic high, open collector compatible, 4.7 K to 10 K Ohm pull-up to V DDT on GBIC. PIN 8 TGND Transmitter Ground PIN 9 TGND Transmitter Ground Transmitter Fault, logic high, open collector compatible, 4.7 K to 10 K Oh pull-up to V DDT on host. Not implemented on the RJ-45 GBIC PIN 10 TX_FAULT PIN 11 RGND Receiver Ground PIN 12 RX_DATA (-) Receive Data, differential AC coupled PIN 13 RX_DATA (+) Receive Data, differential AC coupled PIN 14 RGND Receiver Ground PIN 15 V DDR Receiver Supply +5.0 Volts PIN 16 V DDT Transmitter Supply +5.0 Volts PIN 17 TGND Transmitter Ground PIN 18 TX_DATA (+) Transmit Data, differential AC coupled PIN 19 TX_DATA (-) Transmit Data, differential AC coupled PIN 20 TGND Transmitter Ground 1000Base-T RJ-45 Gigabit Ethernet GBIC Copper Transceiver 1000BASE-T GBIC DIMENSIONS High Performance Adapter Headquarters 101 Bringler Drive Maumelle, AE 72113 USA 501-851-4850 [email protected] Order No. USA-206 Far East North Headquarters Yamato, Kanagawa, Japan 81-462-65-2324 [email protected] Far East South Headquarters Jurong, Singapore 65-6-268-6868 [email protected] Printed in USA/0K/AJ/2003.10 European Headquarters Munich, Germany 49-89-413092-0 [email protected] Corporate Headquarters 2222 Wellington Ct. Lisle, Illinois 60532 USA 630-969-4550 ©2003, Molex