BCM5464S
®
QUAD-PORT GIGABIT COPPER TRANSCEIVER WITH COPPER/FIBER
MEDIA INTERFACE
FEATURES
•
Four fully integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceivers
•
GMII, 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 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
•
Fully compliant with IEEE 802.3, 802.3u, and 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 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
•
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 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
•
•
•
•
IEEE 1149.1 (JTAG) boundary scan
•
Package: 354-pin BGA
BCM5464S System Diagram
BCM5464S
[1/4 SLICE]
SerDes TR+/ -
Optical Mod
Switch/MAC
(BCM5690,
BCM8842)
GMII
RGMII
SGMII
SerDes
Control
Signal Detect
Copper Energy
Detection
Copper
PHY
X4 sets
MUX
TRD+/-
Mag + RJ45
OVERVIEW
16
TX DAC
Symbol
Encoder
XTALK
Cannceller
X3
16
2
2
2
TXD {1:4}*
TX_EN{1:4}*
TX_ER {1:4}*
GTX_CLK {1:4}*
TX_CLK {1:4}*
TRD
{1:4}*
Gain
Automatic
Control
Echo
Cannceller
MUX
PGA
ADC
FFE
DFE/
Trellis
Decoder
SERDES/
SGMII
2
2
2
2
2
16
SGIN±
SCLK±
SGOUT±
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
Auto-
Negotiation
XTALI
XTALO
RDAC {1:2}*
Clock
Generator
Bias
Generator
MII
Registers
Timing &
Phase
Decoder
MUX
Symbol
Decoder/
Aligner
MII
MGMT
Control
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. Low-
power 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: info@broadcom.com
Web: www.broadcom.com
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