BCM5464SR
®
QUAD-PORT GIGABIT COPPER TRANSCEIVER WITH COPPER/FIBER
MEDIA INTERFACE
SUMMARY OF BENEFITS
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
•
Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards
•
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 to 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
•
Requires no air flow or heat sink
•
Eases system level debug
•
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 fall-out due to bad cable plants
•
Over 4 kV 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
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 diagnostic
- 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
•
IEEE 1149.1 (JTAG) boundary scan
•
Package: 256-pin BGA
BCM5464SR System Diagram
BCM5464SR
(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
BCM5464SR
16
16
Symbol
Encoder
TX DAC
2
2
2
TXD[3:0] {1:4}*
TX_EN {1:4}*
TX_ER {1:4}*
GTX_CLK {1:4}*
TX_CLK {1:4}*
MUX
TRD [0:3]± {1:4}*
Gain
Automatic
Control
Echo
Canceller
XTALK
Canceller
X3
SGIN±
SerDes/
SGSMII
SCLK±
SGOUT±
2
PGA
ADC
DFE/
Trellis
Decoder
FFE
Timing &
Phase
Decoder
AutoNegotiation
XTALI
XTALO
RDAC {1:2}*
Clock
Generator
Bias
Generator
MII
Registers
MII
MGMT
Control
2
MUX
Symbol
Decoder/
Aligner
2
2
2
16
COL {1:4}*
CRS {1:4}*
RX_CLK {1:4}*
RX_DV {1:4}*
RX_ER {1:4}*
RXD[3:0] {1:4}*
MDC
MDIO
NTR {1:4}*
Modes
SGIN±
SGOUT±
BCM5464SR Reference Design
The BCM5464SR consists of four complete 10/100/1000BASE-T Gigabit
status, and automatically swaps either copper traffic or fiber traffic to the
Ethernet transceivers integrated on a single monolithic CMOS chip, and is
MAC/switch based on priorities set at initialization.
a member of Broadcom’s QuadSquad™ family of quad Gigabit Ethernet
This device is another member of Broadcom’s 0.13-µm Gigabit copper
PHYs. The BCM5464SR is optimized for low-power and small footprint
PHY family, joining the BCM5404, BCM5414, BCM5421, BCM5421S,
size to enable high port density applications. The BCM5464SR enables a
BCM5424, and BCM5434. The 0.13-µm process is the optimal process that
new class of cost effective Gigabit Ethernet equipment by lowering system
offers the best performance, lowest cost, and lowest power for Gigabit
cost and reducing power dissipation by nearly 25%, driving the delivery of
copper solutions. Devices based on the 0.13-µm process offer an excellent
Gigabit bandwidth to the desktop.
long term cost curve, enabling better cost reduction over time compared to
The BCM5464SR digital signal processor based architecture and advanced
power management techniques combine to achieve robust and low-power
operation over the existing Category 5 twisted-pair wiring. The
BCM5464SR architecture not only meets the requirements of IEEE’s
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 the
BCM5464SR has the lowest power in the industry at less than 750 mW per
port. In addition, the BCM5464SR has extremely low EMI emissions,
which reduces the design constraints required to meet EMI radiation
specifications.
older technologies without having to redesign or requalify a new part.
The BCM5464SR supports RGMII, SGMII, and SerDes MAC interfaces.
A unique feature of the BCM5464SR 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 BCM5464SR monitors copper link and fiber signal detect
The BCM5464SR also has ESD tolerance well above typical industry
standards. This prevents ESD damage not only during manufacturing but
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 BCM5464 can tolerate over 4 kV of CESD.
Each port of the BCM5464SR 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 BCM5464SR cannot automatically correct for, 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.
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.
5464SR-PB02-D1
08/15/06
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com