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參數(shù)資料
| 型號： | 9883 |
| 廠商： | Intel Corp. |
| 英文描述： | Advanced 10/100 Umnmanaged Repeater |
| 中文描述： | 高級10/100 Umnmanaged直放站 |
| 文件頁數(shù)： | 4/56頁 |
| 文件大?。?/td> | 719K |
| 代理商： | 9883 |
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Contents
4
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
Power and Ground Plane Layout Considerations..................................................33
Chassis Ground.....................................................................................................34
The RBIAS Pin.......................................................................................................34
MII Terminations....................................................................................................35
Twisted-Pair Interface............................................................................................36
4.2.7.1
Magnetics Information............................................................................36
Clock......................................................................................................................37
LED Circuits...........................................................................................................39
4.2.9.1
Direct Drive LEDs ..................................................................................39
4.2.9.2
LED Pins Multiplexed with Configuration Inputs....................................39
4.2.9.3
Serial LEDs............................................................................................40
Inter-Repeater Backplane Compatibility.............................................................................41
4.3.1
Local Backplane
—
3.3V Only.................................................................................41
4.3.2
Stack Backplane
—
3.3V or 5V ...............................................................................41
4.3.2.1
3.3V-Only Stacks...................................................................................41
4.3.2.2
For 5V Backwards Stackability ..............................................................41
4.3.2.3
3.3V and 5.0V Stacking Boards Cannot Be Mixed ................................41
4.2.8
4.2.9
4.3
5.0
Test Specifications
......................................................................................................................44
6.0
Mechanical Specifications
..........................................................................................................56
Figures
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
LXT98x3 Block Diagram...............................................................................................................7
LXT9883 Pin Assignments ...........................................................................................................8
Typical LXT9883 Repeater Architecture ....................................................................................17
MII Interface................................................................................................................................19
Serial LED Shift Loading ...........................................................................................................22
Serial LED Port Signaling...........................................................................................................23
100M IRB Connection ................................................................................................................29
IRB Block Diagram ....................................................................................................................30
LXT9883 MII Operation ..............................................................................................................32
Power and Ground Connections ................................................................................................35
Typical Twisted-Pair Port Interface and Power Supply Filtering ................................................38
Typical Reset Circuit ..................................................................................................................38
LED Circuits - Direct Drive & Multiplexed Configuration Inputs..................................................39
Serial LED Circuit .......................................................................................................................40
100M Backplane Connection between LXT98x and LXT98x3 ...................................................42
Typical 100 Mbps IRB Implementation ......................................................................................43
Typical 10 Mbps IRB Implementation ........................................................................................43
100 Mbps TP Port-to-Port Delay Timing.....................................................................................48
100BASE-TX MII-to-TP Port Timing ..........................................................................................49
100BASE-TX TP-to-MII Timing .................................................................................................50
10BASE-T MII-to-TP Timing ......................................................................................................51
10BASE-T TP-to-MII Port Timing ..............................................................................................52
100 Mbps TP-to-IRB Timing ......................................................................................................53
10 Mbps TP-to-IRB Timing ........................................................................................................54
10 Mbps IRB-to-TP Port Timing ................................................................................................55
LXT98x3 Package Specifications ..............................................................................................56
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