Specifications

ASIX ELECTRONICS CORPORATION
2
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
Table of Contents
1.0 INTRODUCTION ................................................................................................................4
1.1 GENERAL DESCRIPTION ...........................................................................................................4
1.2 AX88772 BLOCK DIAGRAM....................................................................................................4
1.3 AX88772 PINOUT DIAGRAM ...................................................................................................5
2.0 SIGNAL DESCRIPTION ....................................................................................................6
3.0 FUNCTION DESCRIPTION ............................................................................................10
3.1 USB CORE AND INTERFACE .................................................................................................. 10
3.2 10/100 ETHERNET PHY.........................................................................................................10
3.3 MAC CORE ...........................................................................................................................10
3.4 STATION MANAGEMENT (STA).............................................................................................10
3.5 MEMORY ARBITER ................................................................................................................11
3.6 USB TO ETHERNET BRIDGE...................................................................................................11
3.7 SERIAL EEPROM LOADER ...................................................................................................11
3.8 GENERAL PURPOSE I/O..........................................................................................................11
4.0 SERIAL EEPROM MEMORY MAP...............................................................................13
4.1 DETAILED DESCRIPTION ........................................................................................................14
5.0 USB CONFIGURATION STRUCTURE.........................................................................17
5.1 USB CONFIGURATION ...........................................................................................................17
5.2 USB INTERFACE.................................................................................................................... 17
5.3 USB ENDPOINTS ...................................................................................................................17
6.0 USB COMMANDS.............................................................................................................18
6.1 USB STANDARD COMMANDS ................................................................................................18
6.2 USB VENDOR COMMANDS.................................................................................................... 19
6.2.1 DETAILED REGISTER DESCRIPTION ....................................................................................20
6.2.2 REMOTE WAKEUP DESCRIPTION ........................................................................................28
6.3 INTERRUPT ENDPOINT ...........................................................................................................28
7.0 EMBEDDED ETHERNET PHY REGISTER DESCRIPTION ....................................29
7.1 DETAILED REGISTER DESCRIPTION........................................................................................29
7.1.1 BASIC MODE CONTROL REGISTER (BMCR) ......................................................................29
7.1.2 BASIC MODE STATUS REGISTER (BMSR)..........................................................................30
7.1.3 PHY IDENTIFIER REGISTER 1 .............................................................................................31
7.1.4 PHY IDENTIFIER REGISTER 2 .............................................................................................31
7.1.5 AUTO NEGOTIATION ADVERTISEMENT REGISTER (ANAR) ...............................................31
7.1.6 AUTO NEGOTIATION LINK PARTNER ABILITY REGISTER (ANLPAR) ................................32
7.1.7 AUTO NEGOTIATION EXPANSION REGISTER (ANER).........................................................32
8.0 ELECTRICAL SPECIFICATIONS.................................................................................33
8.1 DC CHARACTERISTICS ..........................................................................................................33
8.1.1 ABSOLUTE MAXIMUM RATINGS .........................................................................................33
8.1.2 RECOMMENDED OPERATING CONDITION ...........................................................................33