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BCM5404
PRODUCT
(R)
Brief
OF BENEFITS
BCM5404 QUAD-PORT 10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER
BCM5404 FEATURES SUMMARY Four fully integrated * 1000BASE-T Gigabit 10BASE-T/100BASE-TX/a single Ethernet transceivers on Low power quad-port integration enables single row, * high port density switches. Provides * operationcompatibility with IEEE standard devices at 10, 100, and 1000 Mbps at half- and full-
* * *
monolithic CMOS chip Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards 0.13um CMOS -- low power and cost Low power
* 1W per port * Advanced power management
TM
* Low EMI emissions * Ethernet@WireSpeed logic automatically selects the maximum speed based on channel conditions * Cable plant diagnostic
* * * *
duplex. Requires no airflow or heatsink. Reduces design constraints in high-density applications that have higher EMI emissions. Automatically configures the link to support the highest possible speed based on link partner capability and characteristics of the channel. Cable diagnostic function characterizes cable plant condition and immediately indicates cabling issues.
* Prevents erroneous equipment return due to bad cable plants. * Prevents manufacturing fall-out due to bad cable plants.
* Robust CESD tolerance * Support for jumbo packets up to 9 KB * IEEE 1149.1 (JTAG) boundary scan * MII, GMII, TBI, RGMII, and RTBI interface options
* Cable plant analyzer function detects cable plant impairments * Link quality indication LED * Automatic detection and correction of wiring pair swaps, pair skew, and pair polarity * Automatic MDI/MDIX crossover at all speeds
High CESD * return. tolerance prevents equipment damage and Operates with larger wider range * protocol support and packets forefficiency. of packet improved Ease of manufacturing with JTAG support, * power supply, and multiple MAC interfaces.simplified * High-density package options: Lowers system costs.
* * Simplifies system and board design. * RGMII/RTBI reduces I/O pin requirement over GMII and TBI by more than 50%.
BCM5404 System Diagram
Quad Transformer
10/100/1000 Mbps
Ethernet Switch
BCM5404 BCM5404
Quad Transformer
Quad Transformer
BCM5404
10/100/1000BASE-T Gigabit Ethernet Transceiver
Quad Transformer
RJ-45 Connectors
BCM5404
BCM5404
OVERVIEW
BCM5404 Block Diagram
TX DAC Symbol Encoder Echo Canceller XTALK Canceller X3 Symbol PGA ADC FFE DFE/ Trellis Decoder Decoder/ Aligner TXD[7:0] TX_EN {1:4}* TX_ER {1:4}* GTX_CLK {1:4}* TX_CLK {1:4}* COL {1:4}* CRS {1:4}* RX_CLK {1:4}* RX_DV {1:4}* RX_ER {1:4}* RXD[7:0] {1:4}*
16
TRD [3:0]+ {1:4}*
Gain Automatic Control
AutoNegotiation XTALI XTALO RDAC {1:2}* Clock Generator Bias Generator
Timing & Phase Recovery
MII Registers
MII MGMT Control
MDC MDIO INTR{1:4}* Modes
*{1:4} Refers to the four separate Gigabit transceivers in the BCM5404
The BCM5404 consists of four complete 10/100/1000BASE-T Gigabit Ethernet transceivers integrated on a single monolithic CMOS chip. The BCM5404 is optimized for low power and small footprint size to enable high port density applications. By doubling transceiver port density, lowering system cost, and reducing power dissipation by nearly 50%, the BCM5404 enables a new class of cost-effective Gigabit Ethernet equipment, driving the delivery of Gigabit bandwidth to the desktop. The BCM5404's Digital Signal Processor based architecture and advanced power management techniques combine to achieve robust and low power operation over the existing CAT 5 twisted pair wiring. The BCM5404 architecture not only meets the requirements of 802.3, 802.3u, and 802.3ab, but maintains the industry's highest level of margin over IEEE requirements for Echo, NEXT, and FEXT. Low power is key to implementing high density Gigabit switches, and at 1W per port, the BCM5404 enables twice the density of previous Gigabit PHY transceivers. With packaging options, high density switches can be easily acheived. In addition, the BCM5404 has extremely low EMI emissions, which reduces the design constraints required to meet EMI radiation specifications. This device represents the fourth generation of Gigabit Ethernet transceivers based on the same field-proven architecture as in the BCM5400, BCM5401, BCM5411, and BCM5402 transceivers. Each port of the BCM5404 is fully independent and has individual interface, control and status registers and incorporates a number of advanced features. A link quality indicator LED gives installers an instant visual indication if there are any problems with the wiring plant supporting operation at the desired speed. This includes
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physical wiring defects that the BCM5404 cannot automatically correct for and channel conditions such as excessive cable length, and return loss, crosstalk, echo, and noise. Broadcom's cable analyzer software can be used with the device to provide remote management of the cable and a first level of diagnostics and fault isolation. The BCM5404 is fully compatible with the IEEE 802.3 standard for auto-negotiation of speed, but additionally supports Ethernet@WireSpeedTM. Ethernet@WireSpeedTM allows the BCM5404 to force auto-negotiation to be automatically limited by the speed that the channel can reliably support, rather than the performance of the end equipment. The BCM5404 also has ESD tolerance well above typical industry standards. This prevents ESD damage not only during manufacturing but during CESD events in the field. Cable-sourced electrostatic discharge (CESD) is an ESD event that occurs when an electrically charged network cable is plugged into a network port, an issue becoming more prevalent with recent cable installations. In addition to supporting IEEE 802.3 Standard Gigabit Media Independent Interface (GMII), and industry standard Ten Bit Interface (TBI), the BCM5404 also supports the RGMII and RTBI interfaces. RGMII is a reduced pin-count (12 versus 25) version of the GMII and RTBI is a reduced pin-count version of TBI utilizing standard ASIC technology. The high-density package, multiple MAC interfaces, and streamlined power supply lowers system cost and simplifies the system and board level design.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2003 by BROADCOM CORPORATION. All rights reserved. 5404-PB03-R-6.13.03
Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com

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