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54811-DS200-R

5300 California Avenue • Irvine, CA 92617 • Phone: 949-926-5000 • Fax: 949-926-5203 August 31, 2015

Data Sheet

BCM54811

BroadR-Reach

Single-Port 10/100/1000BASE-T

Transceiver

GENERAL DESCRIPTION

FEATURES

The Broadcom

BCM54811 is a triple-speed 10/100/

1000BASE-T Gigabit Ethernet (GbE) transceiver

integrated into a single monolithic CMOS chip. The

device performs all of the physical layer (PHY)

functions for 1000BASE-T, 100BASE-TX, and

10BASE-T on standard Category 5 UTP cable. The

10BASE-T Ethernet can also run on standard

categories 3, 4, and 5 UTP. The BCM54811 is

designed to exceed IEEE specifications for noise

cancellation and transmission jitter, providing

consistent and reliable operation over the broadest

range of existing cable plants.

The BCM54811 is based on proven Broadcom digital-

signal processor technology, combining digital

adaptive equalizers, ADCs, phase locked loops, line

drivers, encoders, decoders, echo cancelers,

crosstalk cancelers, and all other required support

circuitry. The BCM54811 is designed to be fully

compliant with RGMII and MII interface specifications,

allowing compatibility with industry-standard Ethernet

MACs and switch controllers.

Designed for reliable operation over worst-case

Category 5 cable plants, the BCM54811 automatically

negotiates with its link partner to determine the

highest possible operating speed. The device detects

and corrects most common wiring problems.

BroadR-Reach

enables the BCM54811 to auto-

negotiate and link up with BroadR-Reach compliant

link partners in extended cable reach applications of

300m or 500m at 10 Mbps and 100 Mbps modes

(depending on cable type, individual parametrics, and

number of pairs used).

• Single-chip integrated triple-speed Ethernet

transceiver. Support for the following copper line

interfaces:

– 1000BASE-T IEEE 802.3ab

– 100BASE-TX IEEE 802.3u

– 10BASE-T IEEE 802.3

– 10 Mbps BroadR-Reach

– 100 Mbps BroadR-Reach

• Integrated twisted-pair termination resistors

• Supports RGMII MAC interface

• Ethernet@Wirespeed

™

• Integrated voltage regulator

• Trace matched output impedance

• Line loopback

• Low EMI emissions

• Robust cable ESD (CESD) tolerance

• Support for jumbo packets up to 10 KB

• Detection and correction of pair swaps

(MDI crossover), pair skew, and pair polarity

(supported only in IEEE standard modes:

1000BASE-T, 100BASE-TX, and 10BASE-T).

• Advanced power management

• IEEE 1149.1 (JTAG) boundary scan

• Super Isolate mode package

• 48-pin MLP package

• IEEE 1588 v2 compliant

• IEEE 802.3az compliant

(supported only in IEEE standard modes:

1000BASE-T and 100BASE-TX).

– Supports native Energy Efficient Ethernet

™

(EEE) MACs

– Supports legacy non-EEE MACs using

AutogrEEEn

mode

APPLICATIONS

• High-density GbE switches and routers

Broadcom Confidential

Table of ContentsBCM54811 Data Sheet

Broadcom

August 31, 2015 • 54811-DS200-R Page 4

BROADCOM CONFIDENTIAL

Table of Contents

About This Document ................................................................................................................................25

Purpose and Audience.......................................................................................................................... 25

Acronyms and Abbreviations................................................................................................................. 25

Document Conventions......................................................................................................................... 25

Technical Support...................................................................................................................................... 25

Section 1: Functional Description ................................................................................... 26

Overview...................................................................................................................................................... 26

Reduced Gigabit Media Independent Interface ....................................................................................... 27

Media Independent Interface..................................................................................................................... 27

BroadR-Reach............................................................................................................................................. 28

Management Interface................................................................................................................................28

Encoder ....................................................................................................................................................... 29

Decoder ....................................................................................................................................................... 29

Link Monitor................................................................................................................................................ 30

Digital Adaptive Equalizer ......................................................................................................................... 30

Echo Canceler............................................................................................................................................. 31

Crosstalk Canceler..................................................................................................................................... 31

Analog-to-Digital Converter....................................................................................................................... 31

Clock Recovery/Generator ........................................................................................................................ 31

Baseline Wander Correction ..................................................................................................................... 32

Multimode TX Digital-to-Analog Converter.............................................................................................. 32

Stream Cipher............................................................................................................................................. 32

Wiremap and Pair Skew Correction.......................................................................................................... 33

Automatic MDI Crossover.......................................................................................................................... 33

10/100BASE-T Forced Mode Auto-MDIX .................................................................................................. 34

Auto-Negotiation ........................................................................................................................................ 34

Copper Mode......................................................................................................................................... 34

Ethernet@Wirespeed ................................................................................................................................. 35

Software Disable ................................................................................................................................... 36

Changing the Number of Failed Link Attempts Before Ethernet@Wirespeed Downgrade ............ 36

Monitoring Ethernet@Wirespeed ...................................................................................................36

Energy Detect ............................................................................................................................................. 37

Internal Voltage Regulator......................................................................................................................... 37

Power-Down Modes ................................................................................................................................... 38

Jumbo Packets ........................................................................................................................................... 38

Energy Efficient Ethernet........................................................................................................................... 39

Native EEE Mode ........................................................................................................................................ 39

Broadcom Confidential

Table of ContentsBCM54811 Data Sheet

Broadcom

August 31, 2015 • 54811-DS200-R Page 5

BROADCOM CONFIDENTIAL

Native EEE Flow ................................................................................................................................... 40

AutogrEEEn Mode................................................................................................................................. 41

AutogrEEEn Flow .................................................................................................................................. 43

MDI LPI Operation................................................................................................................................. 44

Variable/Fixed Latency Modes .............................................................................................................. 44

IEEE 1588 Support...................................................................................................................................... 45

IEEE 1588 Global Enable...................................................................................................................... 46

Event Message...................................................................................................................................... 46

Transparent Clock Support ................................................................................................................... 46

Enabling One-step Transparent Clock in the PHY ................................................................................ 46

Synchronization Support ....................................................................................................................... 47

SYNC_IN Control .................................................................................................................................. 47

SYNC_OUT Control .............................................................................................................................. 48

IEEE 1588 Frame Formats.................................................................................................................... 48

Section 2: Hardware Signal Descriptions ....................................................................... 53

Section 3: Pinout ...............................................................................................................58

Section 4: Operational Description..................................................................................59

Reset............................................................................................................................................................ 59

PHY Address............................................................................................................................................... 59

Isolate Mode................................................................................................................................................ 59

Standby Power-Down Mode ...................................................................................................................... 60

Auto Power-Down Mode ............................................................................................................................ 60

Ultralow Power-Down Mode ...................................................................................................................... 61

Normal IDDQ (IDDQ-LP Mode)............................................................................................................. 61

IDDQ with Soft Recovery (IDDQ-SR Mode)..........................................................................................61

IDDQ with Soft Recovery (IDDQ-SD Mode)..........................................................................................62

Reset Requirements.............................................................................................................................. 62

Internal Loopback Mode............................................................................................................................ 62

Line-side (Remote) Loopback Mode......................................................................................................... 63

External Loopback Mode........................................................................................................................... 63

Full-Duplex Operation................................................................................................................................64

Master/Slave Configuration....................................................................................................................... 65

Next Page Exchange.................................................................................................................................. 65

RGMII Interface ........................................................................................................................................... 65

MII Interface................................................................................................................................................. 66

Internal Voltage Regulator......................................................................................................................... 67

Dual-Input Configuration/LED Output Function...................................................................................... 67

General-Purpose LED Programmability................................................................................................... 69

Broadcom Confidential