AX88772 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'AX88772' PDF : 43 Pages View PDF
10 Isolate
9 Restart
auto-negotiation
8 Duplex mode
7 Collision test
6:0 Reserved
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
(PHYAD = 00000),
RW
0, RW / SC
1, RW
0, RW
X, RO
1 = Power down
0 = Normal operation
Isolate:
1 = Isolate
0 = Normal operation
Restart auto-negotiation:
1 = Restart auto-negotiation
0 = Normal operation
Duplex mode:
1 = Full duplex operation
0 = Normal operation
Collision test:
1 = Collision test enabled
0 = Normal operation
Reserved:
Write as 0, read as “don’t care”.
7.1.2 Basic Mode Status Register (BMSR)
Address 01h
Bit
Bit Name
15 100BASE-T4
Default
0, RO / PS
14 100BASE-TX full 1, RO / PS
duplex
13 100BASE-TX half 1, RO / PS
duplex
12 10BASE-T full
duplex
11 10BASE-T half
duplex
10:7 Reserved
1, RO / PS
1, RO / PS
0, RO
6 MF preamble
suppression
0, RO / PS
5 Auto-negotiation
complete
0, RO
4 Remote fault (Not 0, RO / LH
supported)
3 Auto-negotiation
ability
2 Link status
1, RO / PS
0, RO / LL
1 Jabber detect
0, RO / LH
0 Extended capability 1, RO / PS
Description
100BASE-T4 capable:
0 = This PHY is not able to perform in 100BASE-T4 mode.
100BASE-TX full-duplex capable:
1 = This PHY is able to perform in 100BASE-TX full-duplex
mode.
100BASE-TX half-duplex capable:
1 = This PHY is able to perform in 100BASE-TX half-duplex
mode.
10BASE-T full-duplex capable:
1 = This PHY is able to perform in 10BASE-T full-duplex mode.
10BASE-T half-duplex capable:
1 = This PHY is able to perform in 10BASE-T half-duplex mode.
Reserved:
Write as 0, read as “don’t care”.
Management frame preamble suppression:
0 = This PHY will not accept management frames with preamble
suppressed.
Auto-negotiation completion:
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
Remote fault:
1 = Remote fault condition detected (cleared on read or by a chip
reset)
0 = No remote fault condition detected
Auto configuration ability:
1 = This PHY is able to perform auto-negotiation.
Link status:
1 = Valid link established (100Mb/s or 10Mb/s operation)
0 = Link not established
Jabber detection:
1 = Jabber condition detected
0 = No Jabber condition detected
Extended capability:
1 = Extended register capable
0 = Basic register capable only
30
ASIX ELECTRONICS CORPORATION
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