RJ-45 RJ-45 Transformer Transformer BCM5421 10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER FEATURES SUMMARY OF BENEFITS Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Provides interoperability with IEEE standard devices Gigabit Ethernet transceiver operating at 10, 100, and 1000 Mbps at half- and full-duplex. On-chip low-voltage regulators Lowers system cost and reduces solution footprint. Fully compliant with IEEE 802.3, 802.3u, and 802.3ab Requires no airflow or heatsink. standards Provides compliance with PCI 2.2 and PC99/PC2000. 0.13-m CMOS low-power and cost Reduces system design constraints to meet EMI emissions Low power standards. 1W per port Automatically configures the link to support the highest Wake on LAN support possible speed based on link partner capability and Advanced power management characteristics of the channel. Low EMI emissions Cable diagnostic function characterizes cable plant condition and immediately indicates cabling issues. Ethernet WireSpeed logic automatically selects the Prevents erroneous equipment return due to bad cable plants. maximum speed based on channel conditions Prevents manufacturing fall-out due to bad cable plants. Cable plant diagnostic High CESD tolerance prevents equipment damage and return. Cable plant analyzer function detects cable plant impairments Link quality indication LED Operates with larger packets for wider range of packet Automatic detection and correction of wiring pair swaps, pair protocol support and improved efficiency. skew, and pair polarity Ease of manufacturing with JTAG support, simplified power Automatic MDI/MDIX crossover at all speeds supply, and multiple MAC interfaces. Robust CESD tolerance Simplifies system and board design. Support for jumbo packets up to 9 KB RGMII/RTBI reduces I/O pin requirement over GMII and TBI by more than 50%. IEEE 1149.1 (JTAG) boundary scan MII, GMII, TBI, RGMII, and RTBI interface options 117-pin BGA and 128-pin MQFP packages 10/100/1000BASE-T Network Interface Card 1000BASE-T Gigabit Uplink BCM5700 Gigabit PCI MAC BCM5421 BCM5605 24FE+2G Switch BCM5421 BCM5421 Transformer BCM5228 BCM5228 BCM5228 Octal 10/100Mbps Phy Octal 10/100Mbps Phy Octal 10/100Mbps Phy RJ-45OVERVIEW TXD 7:0 TX EN 1:4 * Symbol TX DAC 16 TX ER 1:4 * Encoder GTX CLK 1:4 * 1:4 * XTALK TX CLK Echo Gain Canceller Automatic TRD 3:0 + 1:4 * Canceller X3 Control 1:4 * COL 1:4 * CRS Symbol RX CLK 1:4 * DFE/ Decoder/ PGA FFE Trellis RX DV 1:4 * ADC Aligner Decoder RX ER 1:4 * 1:4 * RXD 7:0 Auto- Timing & Negotiation Phase Recovery XTALI Clock Generator XTALO Bias 1:2 * RDAC MDC MII Generator MII MGMT MDIO Registers Control 1:4 * INTR Modes * 1:4 Refers to the four separate Gigabit transceivers in the BCM5404 The BCM5421 is a fully integrated 10/100/1000BASE-T Gigabit The BCM5421 incorporates a number of advanced features. A link Ethernet transceiver. The BCM5421 is optimized for low power and quality indicator LED gives installers an instant visual indication if there small footprint size to enable Network Interface Card (NIC) and uplink are any problems with the wiring plant supporting operation at the applications. By lowering system cost and reducing power dissipation by desired speed. This includes physical wiring defects that the BCM5421 nearly 50%, the BCM5421 enables a new class of cost-effective Gigabit cannot automatically correct for and channel conditions such as Ethernet equipment, driving the delivery of Gigabit bandwidth to the excessive cable length, and return loss, crosstalk, echo, and noise. desktop. Broadcoms cable analyzer software can be used with the device to provide remote management of the cable and a first level of diagnostics The BCM5421s Digital Signal Processor based architecture and and fault isolation. The BCM5421 is fully compatible with the IEEE advanced power management techniques combine to achieve robust and 802.3 standard for auto-negotiation of speed, but additionally supports low power operation over the existing CAT 5 twisted pair wiring. The Ethernet WireSpeed. Ethernet WireSpeed allows the BCM5421 to BCM5421 architecture not only meets the requirements of 802.3, force auto-negotiation to automatically establish link at speeds that the 802.3u, and 802.3ab, but maintains the industrys highest level of margin channel can reliably support, preventing failure to link due to standard over IEEE requirements for Echo, NEXT, and FEXT. Low power is a IEEE auto-negotiation at higher speeds over impaired cable plants. key factor in implementing Gigabit small form factor NICs and uplinks and, at 1W per port, the BCM5421 dissipates nearly half the power of The BCM5421 also has ESD tolerance well above typical industry previous Gigabit PHY transceivers. For NIC applications, support for standards. This prevents ESD damage not only during manufacturing but Wake on LAN enables compliance with PCI 2.2 and PC99/PC2000. In during CESD events in the field. Cable-sourced electrostatic discharge addition, the BCM5421 has extremely low EMI emissions, which (CESD) is an ESD event that occurs when an electrically charged reduces the design constraints required to meet EMI emissions network cable is plugged into a network port, an issue becoming more specifications. prevalent with recent cable installations. This device represents the fourth generation of Gigabit Ethernet In addition to supporting the IEEE 802.3 Standard Gigabit Media transceivers based on the same field-proven architecture as in the Independent Interface (GMII), and the industry-standard Ten Bit BCM5400, BCM5401, BCM5411, and BCM5402 transceivers. The Interface (TBI), the BCM5421 also supports the RGMII and RTBI fourth-generation Gigabit PHY core has already been deployed in the interfaces. RGMII is a reduced pin-count (12 versus 25) version of the BCM5404, a quad port 10/100/1000BASE-T device of which the GMII, and RTBI is a reduced pin-count version of TBI utilizing standard BCM5421 is a single-port slice. ASIC technology. The high-density package, multiple MAC interfaces, and streamlined power supply lowers system cost and simplifies the system and board level design. Broadcom , the pulse logo, Ethernet WireSpeed, and Connecting everything are trademarks of Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. BROADCOM CORPORATION Phone: 949-450-8700 16215 Alton Parkway, P.O. Box 57013 Fax: 949-450-8710 Irvine, California 92619-7013 E-mail: info broadcom.com Web: www.broadcom.com 2004 by BROADCOM CORPORATION. All rights reserved. 5421-PB05-R 07/09/04