BCM5400
PRODUCT
Brief
®
BCM5400 100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER
B C M 5 4 0 0
F E AT U R E S
S U M M A R Y
to operate on existing CAT 5 cable plants.
transceiver
• Supports 10/100/1000BASE-T applications via
• IEEE 802.3u and 802.3ab compliant
interface to an external 10BASE-T
• Glueless
transceiver for 10/100/1000BASE-T applications
Signal Processor (DSP) based system, including
• Digital
digital adaptive equalizers, echo and crosstalk
cancellers, encoders and decoders
Link quality monitor
Advanced power management
Automatic detection and correction of pair swaps,
pair skew, and pair polarity
Automatic MDI crossover
Auto-negotiation with next page support
On-chip transmit wave shaping eliminates external filters
Internal 1000BASE-T hybrids simplifies external magnetics
GMII and 10-bit interface (TBI) interfaces to the
media access controller
• Works with any existing GB Fiber ASICs
• 125 MHz low jitter clock generator
• Support for jumbo packets up to 9 KB
• JTAG test interface
• 3.3V/2.5V CMOS with 5V tolerant I/Os
• 256-pin TBGA
B E N E F I T S
• Highly robust 100/1000BASE-T transceiver designed
Broadcom® BCM5400 is a fully integrated
• The
100BASE-TX/1000BASE-T Gigabit Ethernet
external 10BASE-T transceiver.
• Ability to dynamically sense and adapt to changes in
channel conditions of the cable plant.
• Allows early identification of network problems
through continual monitoring of link quality.
• Reduced power through intelligent power
management techniques.
• Automatically corrects common installation and
configuration mistakes with twisted-pair wiring.
• Works with any existing ASICs and MACs that
support either an industry standard 10-bit interface,
or IEEE 802.3z standard GMII interface.
• Maximizes network thoughput with support for
oversized (jumbo) packets.
• Internal 125 MHz clock generator eliminates external
clock circuit for MAC/ASIC.
• Works with low-cost transformers available from
multiple suppliers.
• Flexible and programmable LED support.
Complete 10/100/1000BASE-T Solution Diagram
BCM5201
10/100BASE-T
Transceiver
BCM5400
10/100/1000 Mbps MAC
10/100/1000BASE-T
Gigabit Transceiver
Quad Transformer
•
•
•
•
•
•
•
•
O F
RJ-45
B C M 5 4 0 0
O V E R V I E W
Symbol
TX DAC
Automatic
Gain
Control
TRD + {0:3}
PGA
ADC
Encoder
Echo
Canceller
Next
Canceller
FFE
DFE/
Trellis
Decoder
Timing &
Phase
Recovery
XTAL1
XTAL0
Clock
Generator
RDAC
Bias
Generator
MII
Registers
TXD[7:0]
TX_EN
TX_ER
GTX_CLK
TX_CLK
Symbol
Decoder/
Aligner
COL
CRS
RX_CLK
RX_DV
RX_ER
RXD[7:0]
Led
Drivers
/LNK100
/LNK1000
/RCVLED
/XMTLED
/FDXLED
MII
MGMT
Control
MDC
MDIO
/INTR
MODE
The Broadcom® BCM5400 is a complete 10/100/1000BASE-T
solution operating on standard grade CAT 5 unshielded
twisted pair (UTP) cable. The device integrates all of the
circuitry required for 100/1000BASE-T Ethernet on-chip, and
provides a glueless interface to an external 10BASE-T
transceiver for 10/100/1000BASE-T support. The chip is
based on a highly advanced DSP architecture combining
digital adaptive equalizers, encoders, decoders, echo
cancellers, crosstalk cancellers, ADCs, phase lock loop, line
drivers, and all required support circuitry. The BCM5400
easily interfaces to Ethernet MACs and repeater controllers
that are compliant with the IEEE 802.3 GMII (Gigabit Media
Independent Interface), or TBI (10-bit interface for SERDES).
A 125-MHz clock with low jitter is generated internally to
eliminate external clocking circuitry for the GMII or TBI
interfaces.
The BCM5400 makes Gigabit Ethernet network equipment
easier to install by automatically detecting and correcting the
most common wiring problems. These include the ability to
automatically configure MDI crossover, correct pair swaps, pair
skew, and pair polarity problems. Plug and Play operation is
achieved through support of IEEE auto-negotiation for
10/100/1000 Mbps in full- and half-duplex modes.
In 1000BASE-T mode, the BCM5400 transmits and receives data
on CAT 5 UTP using a five-level pulse amplitude modulated
(PAM5) data stream. The chip transmits and receives data
simultaneously on all four pairs of the UTP cable. In 100BASETX mode, the BCM5400 transmits and receives data on separate
pairs using a three-level MLT3 encoded serial data stream in
accordance with the IEEE 802.3u standard. The BCM5400
integrates a complete transceiver from GMII, or TBI, to magnetics.
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.
5400-PB02-R 06.25.03
Phone: 949-450-8700
FAX: 949-450-8710
Email: [email protected]
Web: www.broadcom.com