Broadcom BCM953128R8G Quick Start Manual Download

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Broadcom

Confidential

Overview

BROADCOM

Reference Board

December 13, 2010 • 953128R8G-QSG100-R

Page 6

BCM953128R8G Quick Start Guide

Overview

This document describes how to bring up the Broadcom BCM953128R8G reference board.

Because there is no CPU in unmanaged mode application, the EEPROM is needed in this reference board to
configure switch BCM53128 when the board powers on. The EEPROM has been preprogrammed before it is
placed into the socket in the board.

Block Diagram

Figure 1

is a generalized block diagram for the BCM953128R8G reference board.

Figure 1: BCM953128R8G Block Diagram

Magnetics

1 x 8 RJ45

BCM53128

EEPROM

( on Socket )

Power

LED

12 V

Power

Jack

Loop

Detect

Switch

Power

Regulator

U13

D28

U12

Magnetics

SW1

U11

Port 8

LED

Port 7

LED

Port 6

LED

Port 5

LED

Port 4

LED

Port 3

LED

Port 2

LED

Port 1

LED

D27

D26

D25

D24

D23

D22

D21

D20

Summary of Contents for BCM953128R8G

Page 1: ...o a d c o m C o n f i d e n t i a l Quick Start Guide BCM953128R8G 953128R8G QSG100 R 5300 California Avenue Irvine CA 92617 Phone 949 926 5000 Fax 949 926 5203 December 13 2010 BCM953128R8G Reference Board ...

Page 2: ...ts 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 Broadcom Corporation 5300 California Avenue Irvine CA 92617 2010 by Broadcom Corporation All rights reserved Printed in the U S A Revision History Revision Date Change Description 953128R8G QSG100 D 12 13 10 Initial release ...

Page 3: ... e n t i a l Table of Contents BCM953128R8G Quick Start Guide BROADCOM Reference Board December 13 2010 953128R8G QSG100 R Page 3 Table of Contents Overview 6 Block Diagram 6 Connectors 8 Switch 8 LEDs 8 Loop Detection Function 8 ...

Page 4: ...l List of Figures BCM953128R8G Quick Start Guide BROADCOM Reference Board December 13 2010 953128R8G QSG100 R Page 4 List of Figures Figure 1 BCM953128R8G Block Diagram 6 Figure 2 BCM953128R8G Front View 7 Figure 3 BCM953128R8G Rear View 7 ...

Page 5: ... n t i a l List of Tables BCM953128R8G Quick Start Guide BROADCOM Reference Board December 13 2010 953128R8G QSG100 R Page 5 List of Tables Table 1 BCM953128R8G Connectors 8 Table 2 BCM953128R8G Switch 8 Table 3 BCM953128R8G LEDs 8 ...

Page 6: ... switch BCM53128 when the board powers on The EEPROM has been preprogrammed before it is placed into the socket in the board Block Diagram Figure 1 is a generalized block diagram for the BCM953128R8G reference board Figure 1 BCM953128R8G Block Diagram Magnetics 1x 8 RJ45 J6 BCM53128 EEPROM on Socket Power LED 12V Power Jack Loop Detect Switch Power Regulator U7 U13 D28 U12 Magnetics Magnetics Magn...

Page 7: ...lowing information The top LED s display the link speed as follows green for 1000 Mbps yellow for 100 Mbps and off for 10 Mbps The Link Act LED displays steady green if there is a link and blinking if there are activities per port Figure 2 BCM953128R8G Front View Figure 3 is the rear view of the BCM953128R8G Figure 3 BCM953128R8G Rear View Pwr LED Link Act 100M 6 5 4 3 2 1 1000M 8 7 10M off LoopDT...

Page 8: ...detecting a loop through other switches or routers and not only by cable looping two ports of the BCM953128 directly When the loop is detected the Link Act LED on that port RJ45 connector blinks slowly slower than the traffic active LED and the 100M 1000M speed indication LED turns off This feature does not repair the loop and only issues a warning Table 1 BCM953128R8G Connectors Number Settings J...

Page 9: ...ight to make changes without further notice to any products or data herein to improve reliability function or design Information furnished by Broadcom Corporation is believed to be accurate and reliable However Broadcom Corporation does not assume any liability arising out of the application or use of this information nor the application or use of any product or circuit described herein neither do...

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