BCM5464S
®
QUAD-PORT GIGABIT COPPER TRANSCEIVER WITH COPPER/FIBER
MEDIA INTERFACE
FEATURES
SUMMARY OF BENEFITS
• Four fully integrated 10BASE-T/100BASE-TX/1000BASE-T
• Low-power quad-port integration enables single-row, high
Gigabit Ethernet transceivers
• GMII, RGMII, SGMII, and SerDes MAC interface options
• Copper or SerDes line interface options
• 750 mW per port
• Advanced power management
• Trace matched output impedance
• Line-side loopback
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
• Low EMI emissions
• Cable plant diagnostic
• Eases system level debug
• Enables use of low cost magnetics, even in high density (48+)
• Fully compliant with IEEE 802.3, 802.3u, and 802.3ab
standards
• 0.13-micron CMOS—low-power and cost
• Low-power
• 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: 354-pin BGA
•
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 4kV 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
BCM5464S System Diagram
BCM5464S [1/4 SLICE]
SerDes TR+/ Optical Mod
Control
SGMII
SerDes
MUX
Switch/MAC
(BCM5690,
BCM8842)
GMII
RGMII
Signal Detect
Copper Energy
Detection
Copper
PHY
X4 sets
TRD+/-
Mag + RJ45
OVERVIEW
TX DAC
16
TRD
Gain
Automatic
Control
{1:4}*
PGA
ADC
Symbol
Encoder
DFE/
Trellis
Decoder
FFE
AutoNegotiation
Timing &
Phase
Decoder
Clock
Generator
XTALI
XTALO
2
2
XTALK
Cannceller
X3
Echo
Cannceller
16
2
Bias
Generator
MII
Registers
TX_EN{1:4}*
TX_ER {1:4}*
GTX_CLK {1:4}*
TX_CLK {1:4}*
MUX
SGIN±
SCLK±
SGOUT±
SERDES/
SGMII
MUX
Symbol
Decoder/
Aligner
2
2
2
2
2
16
RDAC {1:2}*
TXD {1:4}*
MII
MGMT
Control
COL {1:4}*
CRS {1:4}*
RX_CLK{1:4}*
RX_DV {1:4}*
RX_ER {1:4}*
RXD[7:0] {1:4}*
MDC
MDIO
NTR {1:4}*
MODES
SGIN
SGOUT
*{1:4} Refers to the four separate Gigabit transceivers in the BCM5464S
The BCM5464S consists of four complete 10/100/1000BASE-T Gigabit
Ethernet transceivers integrated on a single monolithic CMOS chip, and
is a member of Broadcom’s QuadSquad TM family of quad Gigabit
Ethernet PHYs. The BCM5464S is optimized for low-power and small
footprint size to enable high port density applications. The BCM5464S
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 bandwidth to the desktop.
The BCM5464S 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 BCM5464S 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. Lowpower is key to implementing high-density Gigabit switches, and the
BCM5464S has the lowest power in the industry at less than 750 mW per
port. In addition, the BCM5464S has extremely low EMI emissions,
which reduces the design constraints required to meet EMI radiation
specifications.
The BCM5464S supports GMII, RGMII, SGMII, and SerDes MAC
interfaces. A unique feature of the BCM5464S 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 BCM5464S 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-µm Gigabit copper
PHY family, joining the BCM5404, BCM5414, BCM5421, BCM5421S,
BCM5424, and BCM5434. The 0.13-µm process is the optimal process
that offers the best performance, lowest cost, and lowest power for
Gigabit copper solutions. Devices based on the 0.13-µm process offer an
excellent long term 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 BCM5464S 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 BCM5464S 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.
The BCM5464S 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.
Broadcom®, the pulse logo, 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
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2003 by BROADCOM CORPORATION. All rights reserved.
5464S-PB07-R
12/10/03
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com