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CONFIDENTIAL FOR ZTE CORPORATION

5/15/2015 RSEX6

Data Sheet

B50612E

B50612E-DS106-R

5300 California Avenue • Irvine, CA 92617 • Phone: 949-926-5000 • Fax: 949-926-5203 December 18, 2013

10/100/1000BASE-T Gigabit Ethernet Transceiver

GENERAL DESCRIPTION

FEATURES

The Broadcom® B50612E is a triple-speed

1000BASE-T/100BASE-TX/10BASE-T Gigabit Ethernet

(GbE) transceiver integrated into a single monolithic

CMOS chip. The device performs all physical-layer

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

10BASE-T Ethernet on standard Category 5 UTP

cable. 10BASE-T can also run on standard Category 3,

4, and 5 UTP. The B50612E is a highly integrated

solution combining digital adaptive equalizers, ADCs,

phase-locked loops, line drivers, encoders, decoders,

echo cancellers, crosstalk cancellers, and all required

support circuitry. Based on Broadcom’s proven

digital signal processor technology, the B50612E is

designed to be fully compliant with RGMII, allowing

compatibility with industry-standard Ethernet MACs

and switch controllers.

Designed for reliable operation over worst-case

Category 5 cable, the B50612E automatically

negotiates with its link partner to determine the

highest possible operating speed. The device detects

and corrects most common wiring problems. The

B50612E features CableChecker™ diagnostics, which

detect common cable problems including shorts,

opens, and cable length.

• Single-chip integrated triple-speed Ethernet

transceiver

• 1000BASE-T IEEE 802.3ab

• 100BASE-TX IEEE 802.3u

• 10BASE-T IEEE 802.3™

• Supports only RGMII MAC interface

• Supports SOFT-RESET

• IDDQ with Soft Recovery (IDDQ-SR mode)

• IDDQ with Signal Detect (IDDQ-SD mode)

• Ethernet@Wirespeed™

• Integrated voltage regulator

• Trace matched output impedance

• Lineside loopback

• Low EMI emissions

• Cable plant diagnostics

• Robust CESD tolerance

• Support for jumbo packets up to 10 KB

• Detection and correction of pair swaps

• (MDI crossover), pair skew, and pair polarity

• Advanced power management

• IEEE 1149.1 (JTAG) boundary scan

• IEEE 802.3az-compliant support

– Support for native EEE MACS

– Support for legacy non-EEE MAC using

AutogrEEEn mode

• Super-isolate mode

• 48-pin MLP packages

APPLICATIONS

• GbE switches and uplinks

CONFIDENTIAL FOR ZTE CORPORATION

5/15/2015 RSEX6

Revision HistoryB50612E Data Sheet

BROADCOM 10/100/1000BASE-T Gigabit Ethernet Transceiver

December 18, 2013 • B50612E-DS106-R Page 2

BROADCOM CONFIDENTIAL

Figure 1: Functional Block Diagram

SYMBOL

ENCODER

SYMBOL

DECODER/

ALIGNER

XTALK

CANCELLER

DEF/

TRELLIS

DECODER

TIMING &

PHASE

RECOVERY

FFE

ECHO

CANCELLER

BASELINE

WANDER

CORRECTION

PGA

AUTO-

NEGOTIATION

CLOCK

GENERATOR

BIAS GENERATOR

VOLTAGE

REGULATOR

MII

REGISTERS

MII

MGMT

CONTROL

LED

DRIVERS

TXDAC

ADC

TXD[3:0]

TX_EN

GTXCLK

RX_DV

RXC

CLK125

RXD[3:0]

LED2

LED3

LED1

LED4

MDIO

MDC

XTALI

XTALO

RDAC

REGSUPPLY

REGOUT

TRD0+

TRD0–

TRD1+

TRD1–

TRD2+

TRD2–

TRD3+

TRD3–

CONFIDENTIAL FOR ZTE CORPORATION

5/15/2015 RSEX6

Revision HistoryB50612E Data Sheet

BROADCOM 10/100/1000BASE-T Gigabit Ethernet Transceiver

December 18, 2013 • B50612E-DS106-R Page 3

BROADCOM CONFIDENTIAL

Revision History

Revision Date Change Description

B50612E-DS106-R

Note:

References

used are valid for

this revision of

document only.

12/18/13 Updated:

• Description for RGMII label GTXCLK on Table 4: “Hardware Signal

Descriptions,” on page 45.

• Description for MODE label LED4 on Table 4: “Hardware Signal

Descriptions,” on page 45.

•Section “CLK125 Clock Output” on page 53.

•Section “Isolate” on page 77.

Added:

• Footnote B to Table 21: “Using TEST3/TEST2 Pins to Set JTAG, Normal

Operation, and PHYA Modes,” on page 65.

•Section Appendix A: “Acronyms and Abbreviations,” on page 163.

B50612E-DS105-R

Note:

References

used are valid for

this revision of

document only.

03/19/12 Updated:

• “Modes of Operation” on page 29.

• Table 4: “Hardware Signal Descriptions,” on page 47.

• “CLK125 Clock Output” on page 56.

• “RGMII Mode” on page 67.

• “LOM-LED Mode” on page 67.

• Table 21: “Using TEST3/TEST2 Pins to Set JTAG, Normal Operation,

and PHYA Modes,” on page 68.

• Table 22: “48-Pin MLP Package RGMII Mode Selection,” on page 68.

• Table 23: “LED Modes,” on page 71.

• “CLK125 Disable” on page 133.

• Table 94: “DC Characteristics,” on page 160 - added RGMII Pin

Operating @ 1.8V HSTL OVDD_RGMII information.

B50612E-DS104-R

Note:

References

used are valid for

this revision of

document only.

10/26/11 Updated:

• Table 161: “Main Differences Between Standard and RoHS-Compliant

Packages,” on page 199.

• Table 165: “Ordering Information,” on page 203.

CONFIDENTIAL FOR ZTE CORPORATION

5/15/2015 RSEX6

Revision HistoryB50612E Data Sheet

BROADCOM 10/100/1000BASE-T Gigabit Ethernet Transceiver

December 18, 2013 • B50612E-DS106-R Page 4

BROADCOM CONFIDENTIAL

B50612E-DS103-R

Note:

References

used are valid for

this revision of

document only.

06/27/11 Updated:

• Figure 11: “B50612E 48-Pin MLP Pinout Diagram, Top View,” on page

• “Reset Requirements” on page 80.

• Table 19: “Programmable LEDs,” on page 88.

• General-Purpose LED Programmability” on page 88.

• Table 27: “Using TEST3/TEST2 Pins to Set JTAG, Normal Operation,

and PHYA Modes,” on page 92.

• Table 29: “LED Modes,” on page 95.

• Table 40: “1000BASE-T Control Register (Address 09h),” on page 120.

• Table 53: “1000BASE-T/100BASE-TX/10BASE-T Auxiliary Control

• Table 57: “1000BASE-T/100BASE-TX/10BASE-T Miscellaneous Control

• Table 58: “1000BASE-T/100BASE-TX/10BASE-T Auxiliary Status

Summary Register (Address 19h),” on page 141.

• Table 62: “1000BASE-T/100BASE-TX/10BASE-T Spare Control 1

• Table 150: “EEE Advertisement Register,” on page 205.

• Table 167: “Ordering Information,” on page 218.

Removed:

• “Edge Rate Control” on page 126.

MCS54612E-DS200-R 12/15/10 Initial release.

Revision Date Change Description

CONFIDENTIAL FOR ZTE CORPORATION

5/15/2015 RSEX6

Revision HistoryB50612E Data Sheet

BROADCOM 10/100/1000BASE-T Gigabit Ethernet Transceiver

December 18, 2013 • B50612E-DS106-R Page 5

BROADCOM CONFIDENTIAL

12/15/10 Updated:

• “Modes of Operation” on page 32.

• “Power-Down Modes” on page 43.

• “Energy Efficient Ethernet” on page 43.

• Table 3: “EEE Timing Parameters,” on page 48.

• Table 9: “Hardware Signal Descriptions,” on page 63.

• Table 27: “Using TEST3/TEST2 Pins to Set JTAG, Normal Operation,

and PHYA Modes,” on page 90

• Table 28: “48-Pin MLP Package RGMII Mode Selection,” on page 90.

• Table 34: “1000BASE-T/100BASE-TX/10BASE-T PHY Identifier

• Table 57: “1000BASE-T/100BASE-TX/10BASE-T Miscellaneous Control

• “External Control 2 Register” on page 158.

• “Top-Level Expansion Registers” on page 173.

• Table 161: “Main Differences Between Standard and RoHS-Compliant

Packages,” on page 211.

• Table 165: “Ordering Information,” on page 215.

Added:

• “IEEE 1588 Global Enable” on page 50.

• “Enabling GM in the PHY” on page 50.

• “IDDQ with Soft Recovery (IDDQ-SR Mode)” on page 78.

• “IDDQ with Soft Recovery (IDDQ-SD Mode)” on page 78.

B50612E-DS102-R 12/15/10 Updated:

• “Modes of Operation” on page 32.

• “Power-Down Modes” on page 43.

• “Energy Efficient Ethernet” on page 43.

• Table 3: “EEE Timing Parameters,” on page 48.

• Table 27: “Using TEST3/TEST2 Pins to Set JTAG, Normal Operation,

and PHYA Modes,” on page 90.

• Table 28: “48-Pin MLP Package RGMII Mode Selection,” on page 90.

• Table 34: “1000BASE-T/100BASE-TX/10BASE-T PHY Identifier

• Table 57: “1000BASE-T/100BASE-TX/10BASE-T Miscellaneous Control

• “External Control 2 Register” on page 158.

• Table 161: “Main Differences Between Standard and RoHS-Compliant

Packages,” on page 211.

• Table 165: “Ordering Information,” on page 215.

Added:

• “IDDQ with Soft Recovery (IDDQ-SR Mode)” on page 78.

• “IDDQ with Soft Recovery (IDDQ-SD Mode)” on page 78.

• “RGMII Out-of-Band” on page 138.

Revision Date Change Description

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