Broadcom
B CM8 48 33
Dua l 10G BA SE-T
Trans ce i ve r
TWO-PORT 10GBASE-T TRANSCEIVER
Overview
The Broadcom® BCM84833 is a complete dual
100BASE-TX, 1000BASE-T, and 10GBASE-T solution
operating at 100m over CAT6a UTP cable. It is
based on highly advanced digital signal processor-
based architecture to allow robust operation over
worst case UTP cables. The BCM84833 is a highly
integrated solution combining enhanced analog
front ends with digital adaptive equalizers, ADCs,
phase-locked loops, line drivers, LDPC encoders
and decoders, echo cancellers, crosstalk cancellers,
and all required support circuitry.
Features
•
Highly integrated two-port 10GBASE-T Ether-
net transceiver.
•
Supports multiple speeds: 100BASE-TX and
1000BASE-T
•
XAUI™, XFI, and SGMII MAC interface options
•
Compliant with IEEE 802.3™, IEEE 802.3an,
IEEE 802.3ab, IEEE 802.3u, and IEEE 802.3az
standards.
•
AutogrEEEn® permits legacy MACs to enjoy
the power savings of EEE in periods of reduced
link utilization.
•
Synchronous Ethernet support
•
Low electromagnetic interference (EMI) emis-
sions
•
Line-side XAUI enables dual-media applica-
tions
•
Cable plant diagnostics
•
IEEE standard 1588-2008 (version 2) support
•
Detection and correction of pair swaps (MDI
crossover), pair skew, and pair polarity.
•
Support for jumbo packets up to 18 KB.
•
Super-Isolate mode to completely disable
selected port.
•
IEEE 1149.1 (JTAG) boundary scan
•
Extensive selection of both line and network
side loopbacks.
•
576-pin FBGA 25 mm x 25 mm package
Highlights
•
The BCM84833 is a new mem-
ber of the Broadcom 40 nm
10GBASE-T PHY family.
•
Devices based on the 40 nm pro-
cess offer an excellent long-term
cost curve, enabling better cost
reduction over time compared
to legacy technologies.
Summary of Benefits
•
Simplifies system and board design:
–
Reduces PCB space
–
Lowers system bill of materials (BOM)
•
IEEE standard device interoperability: 100
Mbps, 1000 Mbps, and 10 Gbps.
•
Compatible with standard Ethernet MACs.
•
Cuts design constraints to meet EMI standards.
•
Cable diagnostics identifies cable plant condi-
tion to immediately trace cabling issues.
•
Operates with larger packets for increased-
scale packet protocol support and efficiency.
•
EEE provides significant power
reduction with AutogrEEEn
delivering EEE for legacy MACs.
•
Optimized to enable switch, con-
troller, and other general 10-
Gigabit Ethernet (GbE) connec-
tivity applications.
•
Simplified systems design with
only two supplies and with no
external MDI components.
•
Broadcom enhanced cable diag-
nostics estimates cable length
and detects cable or termination
anomalies.
•
IEEE 1588 Precision Time Proto-
col (PTP) provides precise and
accurate synchronization of
nodes in the network.
BCM84833
XFI or XAUI
MDI
Transformer
RJ-45
Service
Provider
OTN/PTN
Data Centers
Enterprise
Supported
Best Choice
MAC
Controller
or
Switch
BCM84833
XFI or XAUI
MDI
Transformer
RJ-45
BCM84833 [Port 1]
SYNC_IN0
IEEE 1588/SynchE
SYNC_IN1_OUT
INTERR_MLC
Frame
Frame
Scramble
Scramble
LDPC
LDPC
Encode
Encode
4D DSQ
4D DSQ
128 Map
4D Pre-H
Decode
Decode
RD[1] +
TD[1] +
XFI
XAUI XFI/
XAUI ™ /SGMII
/SGMII
SGMII MAC
MAC
Interface
Interface
4D DAC
4D DAC
XAUI_M
XAUI_L
Deframe
Deframe and
and
Descramble
LDPC
LDPC
Decode
Decode
4D DSQ
4D DSQ
128 Soft
128 Soft
Decisions
Decisions
Matrix
Matrix
Xtalk
Xtalk
Canceller
Canceller
and
and
Equalizer
Equalizer
4D Clock
4D Clock
Recovery
Recovery
TRD[1][0:3]
4D ADC
4D ADC
BCM84833 [Port 2]
MDC
MDIO
SI
SCK
CSb
SO
MDIO
MDIO
Management
Interface
Interface
MII Registers
LED
LED
Controller
Controller
10 LEDs
SPI
SPI
Clock
Generator
+ XTALN
+ XTALP
Shared Functions
BCM84833 Block Diagram for Each Port
Each BCM84833 port contains one XFI
interface to connect to the MAC side and
two XAUI ports. One interface connects
to the MAC side, with the other available
on the line side to support dual-media
applications. This dual-port enables cus-
tomers to design dual-port PCIe™ NICs
and full-featured dual-media 10GBASE-T
ports in switching applications.
The 40 nm process offers the best perfor-
mance, lowest cost, and lowest power for
10-Gigabit copper applications and
enables a highly integrated solution.
The BCM84833 incorporates various
advanced features. A link quality indica-
tor LED provides instant notification of
any problems with the wiring plant oper-
ating at the desired speed. These prob-
lems include physical wiring defects that
the BCM84833 cannot automatically cor-
rect and channel conditions such as
excessive cable length and return loss,
crosstalk, echo, and noise.
Part Number
BCM84833B1KFEBG
Ordering Information
576-pin FBGA (RoHS-compliant)
About Broadcom
Broadcom Corporation is a major technology
innovator and global leader in
semiconductors for wired and wireless
communications. Broadcom® products
enable the delivery of voice, video, data and
multimedia to and throughout the home, the
office and the mobile environment. We
provide the industry's broadest portfolio of
state-of-the-art system-on-a-chip and
software solutions to manufacturers of
computing and networking equipment,
digital entertainment and broadband access
products, and mobile devices.
These solutions support our core mission:
Connecting everything®.
Broadcom, one of the world's largest fabless
communications semiconductor companies,
with 2010 revenue of $6.82 billion, holds
more than 4,800 U.S. and 2,000 foreign
patents, and has more than 7,800 additional
pending patent applications, and one of the
broadest intellectual property portfolios
addressing both wired and wireless
transmission of voice, video, data and
multimedia.
A FORTUNE 500® company, Broadcom is
headquartered in Irvine, Calif., and has offices
and research facilities in North America, Asia
and Europe. Broadcom may be contacted at
+1.949.926.5000 or at www.broadcom.com.
Broadcom, the pulse logo, Connecting everything, the Connecting everything logo, and AutogrEEEn™ are among the trademarks of Broadcom Corporation and/or its affiliates in the United
States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners.
May 24, 2011 • 84833-PB02-R
Embedded System
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