ASIX ELECTRONICS CORPORATION

3

AX88772

USB to 10/100 Fast Ethernet/HomePNA Controller

8.1.3

LEAKAGE CURRENT AND CAPACITANCE ............................................................................34

8.1.4

DC CHARACTERISTICS OF 2.5V I/O PINS...........................................................................34

8.1.5

DC CHARACTERISTICS OF 3.3V I/O PINS...........................................................................34

8.2

POWER CONSUMPTION...........................................................................................................35

8.2.1

INTERNAL PHY ....................................................................................................................35

8.2.2

OPERATING THROUGH MII INTERFACE WITH INTERNAL ETHERNET PHY POWER-DOWN...35

8.3

POWER-UP SEQUENCE............................................................................................................35

8.4

AC TIMING CHARACTERISTICS..............................................................................................36

8.4.1

Clock Timing .................................................................................................................. 36

8.4.2

Reset Timing...................................................................................................................37

8.4.3

MII Timing (100Mbps)................................................................................................... 37

8.4.4

Station Management Timing .......................................................................................... 38

8.4.5

Serial EEPROM Timing.................................................................................................38

9.0

PACKAGE INFORMATION............................................................................................ 39

10.0

ORDERING INFORMATION ...................................................................................... 40

APPENDIX A: SYSTEM APPLICATIONS ................................................................................. 41

A.1 USB TO FAST ETHERNET CONVERTER .....................................................................................41

A.2 USB TO FAST ETHERNET AND/OR HOMELAN COMBO SOLUTION ............................................41

REVISION HISTORY .................................................................................................................... 42

List of Figures

FIGURE 1: AX88772 BLOCK DIAGRAM ................................................................................................4

FIGURE 2: AX88772 PINOUT DIAGRAM................................................................................................5

FIGURE 3: INTERNAL DATAPATH DIAGRAM OF 10/100 ETHERNET PHY AND MII INTERFACE...........10

FIGURE 4: INTERNAL CONTROL MUX FOR STATION MANAGEMENT INTERFACE.................................11

FIGURE 5: MULTICAST FILTER EXAMPLE............................................................................................24

List of Tables

TABLE 1: PINOUT DESCRIPTION ............................................................................................................6

TABLE 2: SERIAL EEPROM MEMORY MAP .......................................................................................13

TABLE 3: USB STANDARD COMMAND REGISTER MAP.......................................................................18

TABLE 4: USB VENDOR COMMAND REGISTER MAP ..........................................................................19

TABLE 5: REMOTE WAKEUP TRUTH TABLE ........................................................................................28

TABLE 6: EMBEDDED ETHERNET PHY REGISTER MAP........................................................................29