BCM5228 ETC, BCM5228 Datasheet - Page 2

• Manufacturer Part Number: BCM5228
• Description: 10/100 BASE - TX/FX OCTAL TRANSCEIVER
• Manufacturer: ETC

The Broadcom BCM5228 is a single-chip device containing
eight independent Fast Ethernet transceivers. Each performs all
the physical layer functions for 100BASE-TX full-duplex or
half-duplex Ethernet on Category 5 UTP cable and 10BASE-T
full-duplex or half-duplex Ethernet on Category 3, 4, or 5 UTP
cable. The BCM5228 chip performs encoding and decoding,
clock and data recovery, digital adaptive equalization, line
transmission, carrier sense and link integrity monitoring, auto-
negotiation and RMII/SMII management functions. The
BCM5228 complies with the IEEE 802.3 standard.
The BCM5228 can be connected to a switch controller through
the RMII/SMII on one side and to the network media on the other
side through isolation transformers for UTP modes or fiber-optic
transceiver/receiver components for FX mode. The BCM5228
operates from a 2.5-V power supply; the I/O operates at either
2.5V or 3.3V.
The BCM5228 includes support for HP Auto-MDIX, which
enables the transceiver to automatically detect and correct
miswired cable.
Broadcom
of Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other trade-
marks 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.
5228-PB05-R 04-15-03
®
, the pulse logo, Octal-Φ Φ
Τ Τ Μ
RFF_CLK
, Digi-Φ Φ
RD+/-
SD+/-
TD+/-
JTAG
BIAS
®
Τ Τ Μ
2
, StrataSwitch™ and Connecting everything
5
MDIX
B C M 5 2 2 8
Auto
Generator
Generator
CRS/Link
Detection
TAP+BS
Clock
JTAG
Bias
Correction
ADC
Baseline
Wander
Multimode
Xmt DAC
Recovery
Clock
Equalizer
Adaptive
Digital
Registrers
Link Integrity
Negotiation/
MII
Auto-
O V E R V I E W
®
are trademarks
With the HP Auto-MDIX feature, all ports on a switch can be
connected to any other 10/100 port on any switch, hub, or
network interface card, using crossover or straight-through
cables interchangeably. This makes installation, debugging,
and maintenance of the network simpler and less expensive to
the end user.
The BCM5227 is a version that does not support HP
Auto-MDIX.
The BCM5227 and BCM5228 are offered in three package
options. The BCM5227U and BCM5228U are packaged in a
208-pin PQFP and support 10/100 operation over UTP, with
three LED indicators per port. The BCM5227F and BCM5228F
are packaged in a 208-pin PQFP and support either 10/100 UTP
transmission or 100BASE-FX via external fiber-optic
transceivers, along with one LED indicator per port. The
BCM5227B and BCM5228B are packaged in 256-pin FBGA and
support either UTP or fiber on each port, as well as three LED
indicators per port. All of these products support both RMII and
SMII.
100BASE-X
10BASE-T
PCS
PCS
DTE Power
Detection
TXD [3:0]
RXD[3:0]
Control
Mgmt
RXDV
RXER
TXEN
TXER
MII
RXC
CRS
TXC
COL
4
4
MII to
RMII
SMII
or
2
12
CRS_DV
RX_ER
RXD[1:0]
TXD [1:0]
REF_CLK
MDC
MDIO
TXEN
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FAX: [phone]