BCM5466SR
®
QUAD-PORT GIGABIT ETHERNET COPPER TRANSCEIVER WITH COPPER/
FIBER MEDIA INTERFACE
SUMMARY OF BENEFITS
FEATURES
• Four fully-integrated 10BASE-T/100BASE-TX/1000BASE-T
• Low-power quad-port integration enables single-row,
Gigabit Ethernet transceivers
high-port-density switches.
- Lowers system costs by eliminating PCB layers required for
routing high-density solutions.
- Reduces I/O pin requirements with RGMII (over 50%), SGMII
(over 75%), and SerDes (over 80%).
- Supports clock timing adjustment 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.
• RGMII, SGMII, and SerDes MAC interface options
• Copper or SerDes line interface options
• Fully compliant with IEEE 802.3, IEEE 802.3u, and
IEEE 802.3ab standards
• 0.13-micron CMOS for low power consumption and low cost
• Flexibility for copper or fiber applications.
• Low power
• Provides compatibility with IEEE standard devices operating at
- 750 mW per port
- Advanced power management
10, 100, and 1000 Mbps at half-duplex and full-duplex.
• Trace matched output impedance
• Eases system level debugging.
• Line-side loopback
• Enables use of low-cost magnetics, even in high-density (48+ port)
designs.
• Ethernet@Wirespeed™ support
• Ethernet@Wirespeed controls auto-negotiation advertising to
• Low EMI emissions
enable link establishment at lower speeds when a 1000BASE link
fails to be established.
• CableChecker™ diagnostics
• CableChecker software characterizes cable plant condition and
- CableChecker software 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
immediately indicates cabling issues.
- Prevents erroneous equipment return due to bad cable plants.
- Prevents manufacturing fallout due to bad cable plants.
• Over 3 kV of CESD tolerance prevents equipment damage and
• Robust cable-sourced electrostatic discharge (CESD) tolerance
return.
• Support for jumbo packets up to 10 kB
• Operates with larger packets for wider range of packet protocol
support and improved efficiency.
• IEEE 1149.1 (JTAG) boundary scan
• Ease of manufacturing with JTAG support, simplified power
• 256-pin BGA package
supply, and multiple MAC interfaces.
BCM5466SR System Diagram
BCM5466SR
(1/4 Slice)
SerDes TR±
Signal Detect
RGMII
BCM5690,
BCM5695
Switch/MAC
Optical Module
Control
Copper Energy
Detection
MUX
SGMII
SerDes
Copper PHY
4 Sets
TRD±
MAG + RJ-45
OVERVIEW
BCM5466SR
TX DAC
XTALK
Canceller
TRD [3:0{4:1}±
Baseline
Wander
Correction
ADC
RDAC
Clock
Generator
Symbol
Decoder/
Aligner
LED
Drivers
MII
Registers
Bias
Generator
SGOUT(1) {4:1}±
SGIN(1) {4:1}±
DFE/
Trellis
Decoder
AutoNegotiation
XTALI
TXD [3:0]{4:1}
SCLK(1) {4:1}±
Timing &
Phase
Recovery
XTALO
GTXCLK {4:1}
TX_EN {4:1}
Serial/
SGMII
Echo
Canceller
FFE
PGA
Symbol
Encoder
MII
MGMT
Control
RXD [3:0]{4:1}
RXC {4:1}
RX_DV {4:1}
LED [4:1]{4:1}
MDC [4:1]
MDIO [4:1]
Modes
REGSUP [2:1]
REGCNTL [2:1]
Voltage
Regulator
REGSEN [2:1]
BCM5466SR Reference Design
control. The BCM5466SR monitors copper link and fiber signal detect
The BCM5466SR is a member of Broadcom’s QuadSquad™ family of
status, and automatically swaps either copper traffic or fiber traffic to the
quad Gigabit Ethernet PHYs. It consists of four complete 10/100/
MAC/switch based on priorities set at initialization.
1000BASE-T Gigabit Ethernet transceivers integrated on a single
monolithic CMOS chip. The BCM5466SR is optimized for low power and
This device is another member of Broadcom’s 0.13-µm Gigabit Ethernet
small footprint size to enable high-port-density applications. The
copper PHY family, joining more than a dozen other quad and single
BCM5466SR enables a new class of cost-effective Gigabit Ethernet
products. The 0.13-µm process is the optimal process that offers the best
equipment by lowering system cost and reducing power dissipation by
performance, lowest cost, and lowest power for Gigabit Ethernet copper
nearly 25%, driving the delivery of Gigabit Ethernet bandwidth to the
solutions. Devices based on the 0.13-µm process offer an excellent longdesktop.
term cost curve, enabling better cost reduction over time (compared to
older technologies) without having to redesign or requalify a new part.
The BCM5466SR DSP-based architecture and advanced power
management techniques combine to achieve robust and low power
Each port of the BCM5466SR is fully independent and has individual
operation over existing Category 5 twisted-pair wiring. The BCM5466SR
interface, control, and status registers, and incorporates a number of
architecture not only meets the requirements of IEEE 802.3, IEEE 802.3u,
advanced features. A link-quality indicator LED gives installers an instant
and IEEE 802.3ab, but maintains the industry’s highest level of margin
visual indication if there are any problems with the wiring plant supporting
over IEEE requirements for echo, near-end crosstalk (NEXT), and far-end
operation at the preferred speed. This includes physical wiring defects that
crosstalk (FEXT). Low power is key to implementing high-density Gigabit
the BCM5466SR cannot automatically correct for, and channel conditions
switches, and the BCM5466SR has the lowest power in the industry at less
such as excessive cable length and return loss, crosstalk, echo, and noise.
than 750 mW per port. In addition, the BCM5466SR has extremely low
Broadcom’s CableChecker software provides remote management of the
EMI emissions, which reduces the design constraints required to meet EMI
cable and first level diagnostics and fault isolation.
radiation specifications.
The BCM5466SR also has ESD tolerance well above typical industry
The BCM5466SR supports RGMII, SGMII, and SerDes MAC interfaces.
standards. This prevents ESD damage not only during manufacturing, but
A unique feature of the BCM5466SR is its ability to support both copper
also during CESD events in the field. The CESD is an ESD event that
and fiber networks, with an integrated SerDes PHY interface that can
occurs when an electrically charged network cable is plugged into a
connect directly to a fiber-optic module. Switching between copper and
network port, which is an issue becoming more prevalent with recent cable
fiber media can be accomplished either automatically or through software
installations. The BCM5466 can tolerate over 3 kV of CESD.
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
5466SR-PB03-R
8/21/06
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com