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BCM5466SR
(R)
QUAD-PORT GIGABIT ETHERNET COPPER TRANSCEIVER WITH COPPER/FIBER MEDIA INTERFACE
FEATURES * Four fully integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceivers * RGMII, SGMII, and SerDes MAC interface options * Copper or SerDes line interface options
SUMMARY OF BENEFITS * Low-power quad-port integration enables single-row,
high-port-density switches. * Lowers system costs by eliminating PCB layers required for routing high-density solutions. * Reduced I/O pin requirements with RGMII (over 50%), SGMII (over 75%), and SerDes (over 80%). * Clock timing can be adjusted to eliminate board trace delays required by the RGMII specification. * Lowers MAC/switch costs by reducing the number of pins required to interface with the PHY. * Flexibility for copper or fiber applications. * Provides compatibility with IEEE standard devices operating at 10, 100, and 1000 Mbps at half-duplex and full-duplex. * Eases system level debug.
* Fully compliant with IEEE 802.3, IEEE 802.3u, and
IEEE 802.3ab standards
* 0.13-micron CMOS--low power and cost * Low power
* 750 mW per port * Advanced power management * Trace matched output impedance * Line-side loopback
* Low EMI emissions * Cable plant diagnostics
* 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 * Robust cable-sourced electrostatic discharge (CESD) tolerance * Support for jumbo packets up to 10 kB
* Enables use of low-cost magnetics, even in high-density (48+)
designs.
* Cable diagnostic function characterizes cable plant condition
and immediately indicates cabling issues. * Prevents erroneous equipment return due to bad cable plants * Prevents manufacturing fallout due to bad cable plants * Over 3kV of CESD tolerance prevents equipment damage and return. * Operates with larger packets for wider range of packet protocol support and improved efficiency. * Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces.
* IEEE 1149.1 (JTAG) boundary scan * Package: 256-pin BGA
BCM5466SR System Diagram
BCM5466SR [1/4 SLICE]
SerDes TR Optical Mod
Control
Switch/MAC (BCM5690, BCM5695)
Multiplexer
RGMII SGMII SerDes
Signal Detect Copper Energy Detection Copper PHY x4 sets
TRD
Mag + RJ45
OVERVIEW
TX DAC
16
Symbol Encoder
16 2 2 2
TXD[3:0] TX_EN { TX_ER { GTX_CLK TX_CLK
TRD [0:3] {1:4}*
Automatic Gain Control
Echo Canceler
Crosstalk Canceler X3
Multiplexer SGIN SCLK SGOU
PGA
ADC
FFE
DFE/ Trellis Decoder
SerDes/ SGMII
2
AutoNegotiation Clock Generator Bias Generator Timing & Phase Recovery Multiplexer Symbol Decoder/ Aligner
COL {1:4} CRS {1:4 RX_CLK RX_DV { RX_ER { RXD[3:0]
2 2 2 2 16
XTALI XTALO RDAC {1:2}*
MII Registers
MII MGMT Control
MDIO MDC NTR {1:4
MODES
*{1:4} Refers to the 4 separate Gigabit Ethernet transceivers in the BCM5466R
A member of Broadcom's QuadSquad TM family of quad Gigabit Ethernet PHYs, the BCM5466SR consists of four complete 10/100/ 1000BASE-T Gigabit Ethernet transceivers integrated on a single monolithic CMOS chip. The BCM5466SR is optimized for low power and small footprint size to enable high-port-density applications. The BCM5466SR enables a new class of cost-effective Gigabit Ethernet equipment by lowering system cost and reducing power dissipation by nearly 25%, driving the delivery of Gigabit Ethernet bandwidth to the desktop. The BCM5466SR DSP-based architecture and advanced power management techniques combine to achieve robust and low power operation over existing Category 5 twisted-pair wiring. The BCM5466SR architecture not only meets the requirements of IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab, but maintains the industry's highest level of margin over IEEE requirements for echo, near-end crosstalk (NEXT), and far-end crosstalk (FEXT). Low power is key to implementing high-density Gigabit switches, and the BCM5466SR has the lowest power in the industry at less than 750 mW per port. In addition, the BCM5466SR has extremely low EMI emissions, which reduces the design constraints required to meet EMI radiation specifications. The BCM5466SR supports RGMII, SGMII, and SerDes MAC interfaces. A unique feature of the BCM5466SR is its ability to support both copper and fiber networks, with an integrated SerDes PHY interface that can connect directly to a fiber-optic module. Switching between copper and fiber media can be accomplished either automatically or through software control. The BCM5466SR monitors copper link and
fiber signal detect status, and automatically swaps either copper traffic or fiber traffic to the MAC/switch based on priorities set at initialization. This device is another member of Broadcom's 0.13-m Gigabit Ethernet copper PHY family, joining more than a dozen other quad and single products. The 0.13-m process is the optimal process that offers the best performance, lowest cost, and lowest power for Gigabit Ethernet copper solutions. Devices based on the 0.13-m process offer an excellent longterm cost curve, enabling better cost reduction over time (compared to older technologies) without having to redesign or requalify a new part. Each port of the BCM5466SR 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 preferred speed. This includes physical wiring defects that the BCM5466SR 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 BCM5466SR also has ESD tolerance that is well above typical industry standards. This prevents ESD damage not only during manufacturing, but also during CESD events in the field. The CESD is an ESD event that occurs when an electrically charged network cable is plugged into a network port, which is an issue becoming more prevalent with recent cable installations. The BCM5466 can tolerate over 3 kV of CESD.
Broadcom(R), the pulse logo, QuadSquadTM, and Connecting everything(R) 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.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2004 by BROADCOM CORPORATION. All rights reserved. 5466SR-PB00-R 08/12/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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