AX88172L datasheet(2/28 Pages) ASIX

2 / 28 page

ASIX ELECTRONICS CORPORATION

AX88172

PRELIMINARY

CONTENTS

1.0 INTRODUCTION....................................................................................................................... 4

1.1 GENERAL DESCRIPTION:............................................................................................................. 4

1.2 AX88172 BLOCK DIAGRAM:...................................................................................................... 4

1.3 AX88172 PIN CONNECTION DIAGRAM....................................................................................... 5

2.0 SIGNAL DESCRIPTION........................................................................................................... 6

3.0 EEPROM MEMORY MAPPING ............................................................................................ 9

4.0 USB COMMANDS ................................................................................................................... 11

4.1 USB STANDARD COMMANDS .................................................................................................... 11

4.2 USB VENDOR COMMANDS....................................................................................................... 12

5.0 USB CONFIGURATION STRUCTURE .............................................................................. 14

5.1 USB CONFIGURATION. ............................................................................................................. 14

5.2 USB INTERFACE....................................................................................................................... 14

5.3 USB ENDPOINTS. ..................................................................................................................... 14

6.0 ELECTRICAL SPECIFICATION AND TIMINGS ............................................................ 15

6.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................... 15

6.2 GENERAL OPERATION CONDITIONS .......................................................................................... 15

6.3 DC CHARACTERISTICS ............................................................................................................. 15

6.4 A.C. TIMING CHARACTERISTICS............................................................................................... 16

6.4.1 12M_XIN ........................................................................................................................... 16

6.4.2 Reset Timing ...................................................................................................................... 16

6.4.3 MII Timing......................................................................................................................... 17

6.4.4 STATION MANAGEMENT TIMING................................................................................. 18

6.4.5 SERIAL EEPROM TIMING .............................................................................................. 19

7.0 PACKAGE INFORMATION.................................................................................................. 20

APPENDIX A: SYSTEM APPLICATIONS ................................................................................ 21

A.1 USB TO FAST ETHERNET CONVERTER .................................................................................... 21

A.2 USB TO FAST ETHERNET AND/OR HOMELAN COMBO SOLUTION ........................................... 21

DEMONSTRATION CIRCUIT A: AX88172 (ED2 VERSION) + ETHERNET PHY(8201L)

........................................................................................................................................................... 22

DEMONSTRATION CIRCUIT B: AX88172 (ED3 VERSION) + ETHERNET PHY

(8201LBL) ........................................................................................................................................ 24

REMARK: ....................................................................................................................................... 26

REVISIONS HISTORY ................................................................................................................. 27

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