Transceiver Solutions Integrated 8-Port 10/100BASE-T Fast Ethernet Transceiver 88E3082/88E3083 PRODUCT OVERVIEW The 88E3082/88E3083 devices are third generation Marvell¨ DSP-based 8-port 10/100BASE-T Fast Ethernet (FE) transceivers. The devices offer the industryÕs lowest power consumption at only 150mW per port resulting in higher port density, lower cost FE switches. Additionally, the 88E3082/88E3083 devices integrate the industryÕs most advanced feature set, such as Virtual Cable Testerª technology for remote cable diagnostics and the support for very low power modes. The 88E3082/88E3083 devices contain all of the active circuitry to convert data streams to and from eight Media Access Controllers (MACs) and the physical media. The 88E3082 device incorporates IEEE 802.3u AutoNegotiation in support of both 100BASE-TX and 10BASE-T networks over twisted-pair cable in full-duplex or half-duplex mode. JTAG Boundary Scan TX+/RX+/- Auto-MDIX Crossover TDR Feature SDET+/- FX Link & Auto- Negotiation REFCLK Clock Distribution 10 Mbps & 100 Mbps Transmit PCS DAC 10 Mbps Receiver ADC Baseline Wander Canceller Digital Adaptive Equalizer RMII or SMII or Source Synchronous SMII 10 Mbps & (SSMII) 100 Mbps Interfaces Receive PCS TXD[1:0] TX_EN/SYNC/TX_SYNC LED Parallel & Serial MDC MDIO Management Interface CRS_DV/RX_SYNC RXD[1:0] RX_ER/RX_CLK Fig 1. 88E3082 (Single-Port) Functional Block Diagram FEATURES ¥ Eight independent IEEE 802.3 compliant 100BASE-TX and 10BASE-T ports ¥ PECL interface supporting 100BASE-FX applications on a per port basis (88E3082 only) ¥ Reduced MII (RMII) or Serial MII (SMII) with Source Synchronous option for reduced pin count (RMII supported on 88E3082 only) ¥ ¥ ¥ ¥ Lower power dissipation, 150mW/port Power management modes Virtual Cable Tester feature Auto-MDI/MDIX crossover for 100BASE-TX and 10BASE-T ports ¥ Jumbo frame support to 10 KB with up to +/- 150 ppm clock jitter ¥ IEEE 802.3u Auto-Negotiation support for automatic speed and duplex selection ¥ Far End Fault Indication (FEFI) support for 100BASE-FX applications ¥ 100BASE-TX performance over 150 meters BENEFITS ¥ Enable higher port density switch system design ¥ Support of FE over fiber applications (88E3083 supports one fiber port) ¥ Provides user configurable digital interfaces, and the Source Synchronous SMII option extends the distance between the PHY and SW/MAC chip on the PCB design ¥ Yields higher port density and lower cost ¥ Reduced system power ¥ Remote cable diagnostics for fault detection ¥ Auto-MDI/MDIX simplifies and reduces the cost of networking installation ¥ Supports applications that demand larger packet sizes ¥ Plug-and-play network system ¥ Improved network reliability ¥ Advanced DSP design tolerates more cable mismatch and extends the receiving distance over 150 meters on standard CAT 5 cable Integrated 8-Port 10/100BASE-T Fast Ethernet Transceiver FEATURES BENEFITS ¥ Flexible serial and parallel LED support ¥ Comprehensive LED support eliminates cost of external LED latches and drivers ¥ Implement JTAG function to make board level debugging easier ¥ Flexible package options for reduced PCB real estate ¥ IEEE 1149.1 standard test access port and boundary scan compatible ¥ Small outline packaging; 88E3082 in 224-pin TFBGA, 88E3083 in 128-pin PQFP APPLICATIONS To reduce the number of input/output (I/O) pins between the MAC and the Physical Layer (PHY), the 88E3082 device supports the Reduced Media Independent Interface (RMII), the Serial Media Independent Interface (SMII) as well as the Source Synchronous option of SMII (SSMII). The SSMII interface extends the allowed PCB trace distance between the PHY and the MAC, thereby facilitating more robust, higher port density, FE switch designs. The 88E3083 device supports the SMII and SSMII interfaces, and 100BASE-FX fiber on a single port. The 88E3082 also features a mode of operation supporting IEEE compliant 100BASE-FX fiber-optic networks. The device includes a PECL interface that is selectable on a per port basis for 100BASE-FX applications. Octal 10/100 Mbps Ethernet MAC 8-Port 10/100BASE-T Fast Ethernet Transceiver (88E3082/ 88E3083) 50 or 125 MHz Clock Magnetics RJ45 10BASE-T 100BASE-TX LEDs Fig 2. 88E3082/88E3083 System Diagram The Marvell 8-port 10/100BASE-T FE transceiver comes with a complete set of hardware and software development tools to assist network hardware engineers with product evaluation. MarvellÕs worldwide field applications engineers collaborate closely with network equipment vendors to develop and deliver new competitive products to market on time. Marvell utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions. THE MARVELL ADVANTAGE: For more information, visit our website at www.marvell.com. Marvell Semiconductor, Inc. 700 First Avenue Sunnyvale, CA 94089 Phone 408.222.2500 www.marvell.com ©2002 Marvell International Ltd. All rights reserved. Marvell, the Marvell logo, Moving Forward Faster, Alaska, the Galileo logo, and GalNet are registered trademarks of Marvell. Discovery, Fastwriter, Galileo Technology, GalTis, Horizon, Libertas and Prestera are trademarks of Marvell. All other trademarks are the property of their respective owners. 100210-001 04/02