KSZ8842-PMQL Просмотр технического описания (PDF) - Micrel

Номер в каталоге

Компоненты Описание

Список матч

KSZ8842-PMQL

2-Port Ethernet Switch with PCI Interface

Micrel 

Micrel, Inc.

KSZ8842-PMQL/PMBL

Contents

Pin Configuration .............................................................................................................................................................. 9

Pins Description of KSZ8842-PMQL.............................................................................................................................. 11

Functional Description ................................................................................................................................................... 20

Functional Overview: PCI Bus Interface Unit............................................................................................................... 20

PCI Bus Interface.......................................................................................................................................................... 20

TXDMA Logic and TX Buffer Manager ......................................................................................................................... 20

RXDMA Logic and RX Buffer Manager ........................................................................................................................ 20

Functional Overview: Physical Layer Transceiver (PHY) ........................................................................................... 20

100BASE-TX Transmit.................................................................................................................................................. 20

100BASE-TX Receive................................................................................................................................................... 20

PLL Clock Synthesizer (Recovery) ............................................................................................................................... 21

Scrambler/De-scrambler (100BASE-TX Only).............................................................................................................. 21

10BASE-T Transmit ...................................................................................................................................................... 21

10BASE-T Receive ....................................................................................................................................................... 21

Power Management...................................................................................................................................................... 21

MDI/MDI-X Auto Crossover .......................................................................................................................................... 21

Straight Cable....................................................................................................................................................... 22

Crossover Cable................................................................................................................................................... 23

Auto Negotiation ........................................................................................................................................................... 23

LinkMD Cable Diagnostics............................................................................................................................................ 24

Access.................................................................................................................................................................. 24

Usage ................................................................................................................................................................... 25

Functional Overview: MAC and Switch......................................................................................................................... 25

Address Lookup ............................................................................................................................................................ 25

Learning ........................................................................................................................................................................ 25

Migration ....................................................................................................................................................................... 25

Aging ............................................................................................................................................................................. 25

Forwarding .................................................................................................................................................................... 26

Switching Engine .......................................................................................................................................................... 27

MAC Operation ............................................................................................................................................................. 28

Inter Packet Gap (IPG) ................................................................................................................................................. 28

Back-Off Algorithm........................................................................................................................................................ 28

Late Collision ................................................................................................................................................................ 28

Illegal Packet Size......................................................................................................................................................... 28

Flow Control.................................................................................................................................................................. 28

Half-Duplex Backpressure ............................................................................................................................................ 28

Broadcast Storm Protection .......................................................................................................................................... 29

Repeater Mode ............................................................................................................................................................. 29

Clock Generator............................................................................................................................................................ 29

Advanced Switch Functions .......................................................................................................................................... 29

Spanning Tree Support................................................................................................................................................. 29

IGMP Support ............................................................................................................................................................... 30

“IGMP” Snooping.................................................................................................................................................. 30

“Multicast Address Insertion” in the Static MAC Table......................................................................................... 30

IPv6 MLD Snooping ...................................................................................................................................................... 30

Port Mirroring Support................................................................................................................................................... 30

IEEE 802.1Q VLAN Support ......................................................................................................................................... 31

QoS Priority Support ..................................................................................................................................................... 31

Port-Based Priority........................................................................................................................................................ 31

802.1p-Based Priority ................................................................................................................................................... 32

DiffServ based Priority .................................................................................................................................................. 32

Rate Limiting Support ................................................................................................................................................... 32

MAC Filtering Function ................................................................................................................................................. 33

October 2007

4

M9999-100207-1.5

Share Link: