KS8995FQ Ver la hoja de datos (PDF) - Micrel

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KS8995FQ

Integrated 5-Port 10/100 Managed Switch

Micrel 

Micrel, Inc.

KS8995MA/FQ

Contents

System Level Applications................................................................................................................................................. 11

Pin Configuration ................................................................................................................................................................ 13

Pin Description − By Number............................................................................................................................................. 14

Pin Description − By Name ................................................................................................................................................ 20

Introduction ......................................................................................................................................................................... 26

Functional Overview: Physical Layer Transceiver .......................................................................................................... 26

100BASE-TX Transmit ..................................................................................................................................................... 26

100BASE-TX Receive ...................................................................................................................................................... 26

PLL Clock Synthesizer...................................................................................................................................................... 26

Scrambler/De-Scrambler (100BASE-TX Only) ................................................................................................................. 27

100BASE-FX Operation.................................................................................................................................................... 27

100BASE-FX Signal Detection ......................................................................................................................................... 27

100BASE-FX Far End fault ............................................................................................................................................... 27

10BASE-T Transmit .......................................................................................................................................................... 27

10BASE-T Receive ........................................................................................................................................................... 27

Power Management.......................................................................................................................................................... 27

MDI/MDI-X Auto Crossover .............................................................................................................................................. 27

Auto-Negotiation ............................................................................................................................................................... 28

Functional Overview: Switch Core .................................................................................................................................... 29

Address Look-Up .............................................................................................................................................................. 29

Learning ............................................................................................................................................................................ 29

Migration ........................................................................................................................................................................... 29

Aging ................................................................................................................................................................................. 29

Forwarding ........................................................................................................................................................................ 29

Switching Engine .............................................................................................................................................................. 29

Media Access Controller (MAC) Operation ...................................................................................................................... 30

MII Interface Operation ..................................................................................................................................................... 33

SNI Interface Operation .................................................................................................................................................... 36

Advanced Functionality...................................................................................................................................................... 36

Spanning Tree Support..................................................................................................................................................... 36

Special Tagging Mode ...................................................................................................................................................... 37

IGMP Support ................................................................................................................................................................... 39

Port Mirroring Support ...................................................................................................................................................... 39

VLAN Support ................................................................................................................................................................... 40

Rate Limit Support ............................................................................................................................................................ 40

October 2011

4

M9999-102611-3.0

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