PM3350-SW datasheet(5/224 Pages) PMC

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ELAN 8X10

PM3350 ELAN 8 X10

DATA SHEET

PMC-970109

ISSUE 3

8 PORT ETHERNET SWITCH

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY

iii

Switch Processor Operating Environment.............................................. 65

Packet Buffers........................................................................................ 68

Data Descriptors .................................................................................... 71

Local Port Descriptor Tables.................................................................. 76

Expansion Port Descriptor Tables.......................................................... 85

Address Hash Table .............................................................................. 89

Work Queue........................................................................................... 98

Free Pools.............................................................................................. 99

Spanning Tree Support Data Structures .............................................. 100

RTOS Requirements............................................................................ 101

UDP/IP Protocol Stack Requirements.................................................. 102

SNMP Requirements ........................................................................... 102

Storage Requirements ......................................................................... 102

Switching System Initialization ...................................................................105

Switching Between Local Ports ..................................................................105

Switching Via The Expansion Bus..............................................................112

Address Learning and Aging ......................................................................124

Buffer and Queue Management .................................................................132

Statistics Collection ....................................................................................137

Messaging Protocol ....................................................................................141

Spanning Tree Operation ...........................................................................141

RTOS Operation.........................................................................................141

UDP/IP Protocol Stack Operation...............................................................141

SNMP Operation ........................................................................................141

Device Interface Via PCI ............................................................................141

Frame Transfer to Non-ELAN Devices ................................................ 141

Participation in Address Learning ........................................................ 141

Participation in the Messaging Protocol ............................................... 141

Accessing Variables and Statistics ...................................................... 141

Byte Ordering ....................................................................................... 142

ELAN 1x100 / ELAN 8x10 Expansion Bus Data Transfer Rates.......... 144

PCI REGISTER/MEMORY ACCESS ................................................................ 150

PCI Configuration Space ............................................................................150

PCI Configuration Registers................................................................. 151

PCI Memory Space ....................................................................................160

Local Memory Access .......................................................................... 161

Device Control/Status Registers .......................................................... 162

Device Configuration Registers............................................................ 164

Device Debug Registers ...................................................................... 169

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