BCM5411
PRODUCT
Brief
®
BCM5411 10/100/1000BASE-T TRANSCEIVER
B C M 5 4 1 1
F E AT U R E S
S U M M A R Y
Fully integrated 10BASE-T/100BASE-TX/1000BASE-T
• Gigabit
Ethernet transceiver compliant with IEEE
802.3, 802.3u, and 802.3ab standards
power
• •Low
Less than 2W per port
• Advanced power management
• Wake on LAN support–less than 600 mW
• Standby power mode with energy detect
• MII, GMII, RGMII, TBI and RTBI interface options
Ethernet@WireSpeed automatically selects
• maximum
speed based on channel conditions
plant diagnostic
• Cable
• Cable plant analyzer capability to detect cable plant
TM
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
• Internal 125-MHz low-jitter clock generation
• Support for jumbo packets up to 9 KB
• IEEE 1149.1 (JTAG) boundary scan
• 128-pin MQFP package or 117-pin BGA package
O F
B E N E F I T S
Compatible with IEEE standard operation at 10, 100,
• and
1000 Mbps at half- and full-duplex.
• No airflow or heatsink required.
on LAN mode for low-power, PC’99-compliant
• Wake
adapters (less than 600 mW).
detection places unconnected ports into
• Auto-Network
low power state.
configures the link to support the
• Automatically
highest possible speed based on link partner capability
and characteristics of the channel.
RGMII/RTBI reduces I/O pin requirement over GMII
• and
TBI by more than 50%.
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.
125-MHz clock eliminates costly external clocking
• circuitry
for the MAC/ASIC.
Operates with larger packets for wider range of packet
• protocol
support and for improved efficiency.
High density package options without heatsink
• requirement
provides improved testability.
10/100/1000BASE-T
Gigabit Ethernet Transceiver
RJ-45
BCM5411
Transformer
10/100/1000Mbps
Ethernet MAC
BCM5411 System Diagram
B C M 5 4 1 1
O V E R V I E W
BCM5411 Block Diagram
Symbol
TX DAC
8
Gain
Automatic
Control
TRD[3:0] +
PGA
ADC
Encoder
Echo
Canceller
XTALK
Canceller
x3
FFE
DFE/
Trellis
Decoder
AutoNegotiation
Timing &
Phase
Recovery
Clock
Generation
XTALI
XTALO
BIAS
Generation
RDAC{1:2}
REGSUP{1:2}
Voltage
Regulator
REGCNTL{1:2}
MII
Registers
REGSEN{1:2}
Symbol
Decoder/
Aligner
8
TXD[7:0]
TX_EN
TX_ER
GXT_CLK
TX_CLK
COL
CRS
RX_CLK
RX_DV
RX_ER
RXD[7:0]
LNK100
LED
Drivers
MII
MGMT
Control
LNK1000
RCVLED
XMTLED
FDXLED
MDC
MDIO
INTR
MODES
The BCM5411 is a fully integrated 10/100/1000BASE-T Gigabit
Ethernet transceiver solution. An advanced Digital Signal
Processor based architecture, 0.18u CMOS process, and power
management techniques are used to create a design optimized for
low power operation and minimal board space.
This device represents the third generation of Gigabit Ethernet
transceivers based on the same field-proven architecture as in the
BCM5400 and BCM5401 transceivers, which demonstrate
robust operation over the installed base of CAT 5 twisted pair
wiring. The BCM5411 is fully software and register compatible
with the BCM5400 and BCM5401.
In addition to low power operation, several modes are included
to further reduce power in special conditions. The BCM5411 can
detect when the user disconnects the port from a network and
subsequently enters into low power modes. When energy is
detected on the line, the part re-enters normal mode of operation.
The energy detection mode is especially valuable for mobile
applications to conserve battery life when the Ethernet port is not
used.
Dissipating less than 600 mW, the BCM5411’s Wake-on-LAN
mode allows PC adapters and LAN-on-motherboard (LOM) to
meet stringent standby power requirements for PC’99
compliance. In the wake-on-LAN mode, the transceiver keeps
the link active at 10 Mbps or 100 Mbps while powering down all
of the internal circuitry needed for operation at Gigabit Ethernet.
Power is less than 400 mW in wake-on-LAN mode.
In addition to supporting IEEE 802.3 Standard Gigabit Media
Independent Interface (GMII), and industry standard Ten Bit
Interface (TBI), BCM5411 also supports RGMII, a reduced pincount (12 versus 25) version of the GMII. In a 24-port system,
using RGMII instead of GMII results in savings of 312 pins for
MAC ASICS, thus saving systems cost significantly.
The BCM5411 is fully compatible with the IEEE 802.3 standard
for auto-negotiation of speed. Additionally, several Plug and Play
enhancements are added to make the device even more user
friendly. A link quality indicator LED gives installers an instant
visual indication if there are any problems with the wiring plant
supporting operation at the desired speed. This includes physical
wiring defects that the BCM5411 cannot automatically correct for
and channel conditions such as excessive cable length, 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
BCM5411 continually monitors various channel conditions. The
optional Ethernet@WireSpeedTM capability allows the BCM5411
to auto-negotiate to the maximum data rate allowed by the cable
plant. This feature prevents failure to establish link because of
cable plant impairment at higher data rates.
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 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.
5411-PB02-R 06.25.03
Phone: 949-450-8700
FAX: 949-450-8710
Email: [email protected]
Web: www.broadcom.com