參數(shù)資料
型號： ADM6926
廠商： Electronic Theatre Controls, Inc.
英文描述： 26 port 10/100 Mbps Ethernet Switch Controller
中文描述： 26端口10/100 Mbps以太網(wǎng)交換機控制器
文件頁數(shù)： 3/85頁
文件大?。?/td> 4222K
代理商： ADM6926
ADMtek Inc.
V1.0
Table of Contents
Chapter 1 Product Overview........................................................................................1-1
1.1
Overview..........................................................................................................1-1
1.2
Features............................................................................................................1-1
1.3
Block Diagram.................................................................................................1-2
1.4
Abbreviations...................................................................................................1-3
1.5
Conventions.....................................................................................................1-4
1.5.1
Data Lengths............................................................................................1-4
1.5.2
Register Type Descriptions......................................................................1-4
1.5.3
Pin Type Descriptions..............................................................................1-4
Chapter 2 Interface Description...................................................................................2-1
2.1 Pin Diagram – ADM6926 (SS-SMII Interface).....................................................2-1
2.2
Pin Description.................................................................................................2-2
2.2.1
SS-SMII Networking Interface, 60 pins ...................................................2-2
2.2.2
MII/RMII Interface, 28pins......................................................................2-3
2.2.3
Power/Ground..........................................................................................2-5
2.2.4
Miscellaneous pins, 16 pins.....................................................................2-5
Chapter 3 Function Description...................................................................................3-1
3.1.1
Basic Operation.......................................................................................3-1
3.1.2
Address Learning.....................................................................................3-1
3.1.3
Address Aging..........................................................................................3-2
3.1.4
Address Recognition and Packet Forwarding.........................................3-3
3.1.5
Trunking Port Forwarding ......................................................................3-4
3.1.6
Illegal Frames..........................................................................................3-4
3.1.7
Back off Algorithm...................................................................................3-4
3.1.8
Buffers and Queues..................................................................................3-4
3.1.9
Half Duplex Flow Control.......................................................................3-5
3.1.10
Full Duplex Flow Control........................................................................3-5
3.1.11
Inter-Packet Gap (IPG)...........................................................................3-5
3.1.13
Priority Control .......................................................................................3-6
3.1.14
Alert LED Display....................................................................................3-7
3.1.15
Broadcast Storm Filter ............................................................................3-7
3.1.16
Collision LED Display.............................................................................3-7
3.1.17
Bandwidth Control...................................................................................3-8
3.1.18
Smart Discard..........................................................................................3-8
3.1.19
Security Support.......................................................................................3-8
3.1.20
Smart Counter Support............................................................................3-8
3.1.21
Length 1536 Mode...................................................................................3-8
3.1.22
PHY Management (MDC/MDIO Interface).............................................3-8
3.1.23
Forward Special Packets to the CPU Port..............................................3-9
3.1.24
Special TAG...........................................................................................3-10
3.1.25
Port 24 and Port 25 Interface (Only SS-SMII package support)...........3-12
3.1.26
Hardware, EEPROM and SMI Interface for Configuration..................3-13
3.2
EEPROM Register Format ............................................................................3-17
3.2.1
Signature (Index: 0h).............................................................................3-20
3.2.2
Global Configuration Register (Index: 1h)............................................3-20
ADM6926
i
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