LXT914 データシートの表示（PDF） - Intel

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LXT914

Flexible Quad Ethernet Repeater

Intel 

Intel® LXT914 Flexible Quad Ethernet Repeater

Figures

1 Block Diagram .............................................................................................................................. 7

2 Pin Assignments ........................................................................................................................... 8

3 Global State Machine ................................................................................................................. 17

4 Partitioning State Machine.......................................................................................................... 18

5 Integrated LED Driver Indications............................................................................................... 26

6 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 1 of 4)....................................... 29

7 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 2 of 4)....................................... 30

8 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 3 of 4)....................................... 31

9 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 4 of 4)....................................... 32

10 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet 1 of 2) ....................... 33

11 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet 2 of 2) ....................... 34

12 Serial Port Timing ....................................................................................................................... 38

13 Inter-Repeater Bus Timing ......................................................................................................... 39

14 LXT914PC/PE Package Specifications ...................................................................................... 40

15 LXT914QC Package Specifications ........................................................................................... 41

16 Sample PLCC Package - Intel® LXT914 Repeater .................................................................... 42

17 Sample Pb-Free (RoHS-Compliant) PLCC Package - Intel® LXT914 Repeater ........................ 42

18 Sample PQFP Package - Intel® LXT914 Repeater .................................................................... 43

19 Sample Pb-Free (RoHS-Compliant) PQFP Package - Intel® LXT914 Repeater ........................ 43

20 Ordering Information Matrix – Sample........................................................................................ 45

Tables

1 Power, Ground, and Clock Signal Descriptions............................................................................ 9

2 Inter-Repeater Backplane Signal Descriptions ........................................................................... 10

3 Mode Select and Control Signal Descriptions ............................................................................ 10

4 Serial Port Signal Descriptions (External Management Mode) .................................................. 11

5 Serial Port Signal Descriptions (Local Management Mode) ....................................................... 11

6 Miscellaneous Control Signal Descriptions ................................................................................ 12

7 LED Driver Signal Descriptions .................................................................................................. 12

8 Repeater Port Signal Descriptions ............................................................................................. 13

9 Setup Register Bit Assignments ................................................................................................. 19

10 Setup Register Bit Definitions ..................................................................................................... 19

11 Packet Status Register Bit Assignments .................................................................................... 20

12 Packet Status Register Bit Definitions ........................................................................................ 20

13 AUI Mode Selection (DTE/MAU) ................................................................................................ 22

14 LED Mode Selection ................................................................................................................... 24

15 Mode 0 (Default) LED Truth Table ............................................................................................. 24

16 Mode 1 LED Truth Table ............................................................................................................ 24

17 Mode 2 LED Truth Table ............................................................................................................ 25

18 Mode 3 LED Truth Table ............................................................................................................ 25

19 Manufacturers Magnetics List..................................................................................................... 28

20 Absolute Maximum Ratings ........................................................................................................ 35

21 Recommended Operating Conditions ........................................................................................ 35

22 I/O Electrical Characteristics1 ..................................................................................................... 35

23 AUI Electrical Characteristics ..................................................................................................... 36

24 Twisted-Pair Electrical Characteristics ....................................................................................... 36

25 IRB Electrical Characteristics ..................................................................................................... 37

31-Oct-2005

4

Intel® LXT914 Flexible Quad Ethernet Repeater

Order Number: 248989, Revision: 003

Datasheet

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