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3X38FTR

208-Pin SQFP OCTAL-FET (Fast Ethernet Transceiver) for 10Base-T/100Base-TX/FX

Agere -> LSI Corporation 

Preliminary Data Sheet

September 2000

3X38FTR 208-Pin SQFP

OCTAL-FET for 10Base-T/100Base-TX/FX

Table of Contents

Contents

Page

Overview................................................................................................................................................................................................... 1

Features.................................................................................................................................................................................................... 1

10 Mbits/s Transceiver ........................................................................................................................................................................... 1

100 Mbits/s TX Transceiver.................................................................................................................................................................... 1

100 Mbits/s FX Transceiver.................................................................................................................................................................... 1

General .................................................................................................................................................................................................. 2

Description................................................................................................................................................................................................ 5

RMII Mode ............................................................................................................................................................................................. 5

SMII Mode ............................................................................................................................................................................................. 5

LED Control ........................................................................................................................................................................................... 5

Clocking ................................................................................................................................................................................................. 5

FX Mode ................................................................................................................................................................................................ 5

Single-Channel Detail Functions ........................................................................................................................................................... 7

Block Diagrams...................................................................................................................................................................................... 8

Pin Information ....................................................................................................................................................................................... 10

Pin Diagram for RMII Mode ................................................................................................................................................................. 10

Pin Diagram for SMII Mode ................................................................................................................................................................. 11

Pin Maps.............................................................................................................................................................................................. 15

Pin Descriptions...................................................................................................................................................................................... 16

Functional Description ............................................................................................................................................................................ 27

Reduced Media Independent Interface (RMII)..................................................................................................................................... 27

RMII/SMII Interface.............................................................................................................................................................................. 29

Media Independent Interface (MII)—Internal ....................................................................................................................................... 31

100Base-X Module .............................................................................................................................................................................. 32

100Base-TX Transceiver...................................................................................................................................................................... 36

10Base-T Module ................................................................................................................................................................................ 37

Operation Modes ................................................................................................................................................................................. 37

LED Operational Modes ...................................................................................................................................................................... 39

Reset Operation................................................................................................................................................................................... 43

MII Station Management ........................................................................................................................................................................ 44

Basic Operation ................................................................................................................................................................................... 44

Unmanaged Operations....................................................................................................................................................................... 45

Register Information ............................................................................................................................................................................... 46

Register Descriptions .......................................................................................................................................................................... 46

Absolute Maximum Ratings .................................................................................................................................................................... 56

Clock Timing ........................................................................................................................................................................................... 57

Outline Diagram...................................................................................................................................................................................... 63

208-Pin SQFP ..................................................................................................................................................................................... 63

Tables

Page

Table 1. 3X38 Signal in Alphanumeric Sequence According to Pin Number......................................................................................... 12

Table 2. 3X38 RMII/SMII Pin Map.......................................................................................................................................................... 15

Table 3. RMII/SMII Interface Pins .......................................................................................................................................................... 16

Table 4. MII Management ...................................................................................................................................................................... 17

Table 5. 10/100 Mbits/s Twisted-Pair (TP) Interface Pins....................................................................................................................... 18

Table 6. LED and Configuration Pins..................................................................................................................................................... 18

Table 7. Table Test Mode Pins ............................................................................................................................................................... 24

Table 8. Clock, Reset, FOSD, and Special Configuration Pins .............................................................................................................. 25

Table 9. Power, Ground, and No Connects............................................................................................................................................ 26

Table 10. Receive Data/Status Encoding............................................................................................................................................... 30

Table 11. Symbol Code Scrambler ....................................................................................................................................................... 33

Table 12. LED Modes ............................................................................................................................................................................ 40

Table 13. Serial LED Pin Descriptions ................................................................................................................................................... 41

Table 14. Serial LED Port Order ............................................................................................................................................................ 41

Table 15. Bicolor Mode .......................................................................................................................................................................... 42

Table 16. Bicolor LED Mode Descriptions ............................................................................................................................................. 43

Table 17. MII Management Frame Format............................................................................................................................................. 44

Table 18. MII Management Frames—Field Descriptions ....................................................................................................................... 44

Lucent Technologies Inc.

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