
ASIX ELECTRONICS CORPORATION
3
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
8.1.3
8.1.4
8.1.5
8.2
8.2.1
I
NTERNAL
P
HY
....................................................................................................................35
8.2.2 O
PERATING THROUGH
MII I
NTERFACE WITH
I
NTERNAL
E
THERNET
PHY P
OWER
-
DOWN
...35
8.3
P
OWER
-
UP
S
EQUENCE
............................................................................................................35
8.4
AC T
IMING
C
HARACTERISTICS
..............................................................................................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
L
EAKAGE
C
URRENT AND
C
APACITANCE
............................................................................34
DC C
HARACTERISTICS OF
2.5V I/O P
INS
...........................................................................34
DC C
HARACTERISTICS OF
3.3V I/O P
INS
...........................................................................34
P
OWER
C
ONSUMPTION
...........................................................................................................35
9.0
PACKAGE INFORMATION............................................................................................39
10.0
ORDERING INFORMATION......................................................................................40
APPENDIX A: SYSTEM APPLICATIONS.................................................................................41
A.1 USB
TO
F
AST
E
THERNET
C
ONVERTER
.....................................................................................41
A.2 USB
TO
F
AST
E
THERNET AND
/
OR
H
OME
LAN C
OMBO SOLUTION
............................................41
REVISION HISTORY ....................................................................................................................42
List of Figures
F
IGURE
1: AX88772 B
LOCK
D
IAGRAM
................................................................................................4
F
IGURE
2: AX88772 P
INOUT
D
IAGRAM
................................................................................................5
F
IGURE
3: I
NTERNAL
D
ATAPATH
D
IAGRAM OF
10/100 E
THERNET
PHY
AND
MII I
NTERFACE
...........10
F
IGURE
4: I
NTERNAL
C
ONTROL
M
UX FOR
S
TATION
M
ANAGEMENT
I
NTERFACE
.................................11
F
IGURE
5: M
ULTICAST
F
ILTER
E
XAMPLE
............................................................................................24
List of Tables
T
ABLE
1: P
INOUT
D
ESCRIPTION
............................................................................................................6
T
ABLE
2: S
ERIAL
EEPROM M
EMORY
M
AP
.......................................................................................13
T
ABLE
3: USB S
TANDARD
C
OMMAND
R
EGISTER
M
AP
.......................................................................18
T
ABLE
4: USB V
ENDOR
C
OMMAND
R
EGISTER
M
AP
..........................................................................19
T
ABLE
5: R
EMOTE
W
AKEUP
T
RUTH
T
ABLE
........................................................................................28
T
ABLE
6: E
MBEDDED
E
THERNET
P
HY
R
EGISTER
M
AP
........................................................................29