AX88772_07 ASIX [ASIX Electronics Corporation], AX88772_07 Datasheet - Page 30

• Manufacturer Part Number: AX88772_07
• Description: USB to 10/100 Fast Ethernet/HomePNA Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

7.1.2 Basic Mode Status Register (BMSR)
Address 01h
10:7 Reserved
Bit
6:0 Reserved
15
14
13
12
11
10
6
5
4
3
2
1
0
9
8
7
Isolate
Restart
auto-negotiation
Duplex mode
100BASE-T4
100BASE-TX full
duplex
100BASE-TX half
duplex
10BASE-T full
duplex
10BASE-T half
duplex
MF preamble
suppression
Auto-negotiation
complete
Remote fault (Not
supported)
Auto-negotiation
ability
Link status
Jabber detect
Extended capability
Collision test
Bit Name
(PHYAD = 00000),
RW
0, RW / SC
1, RW
0, RW
X, RO
0, RO / PS
1, RO / PS
1, RO / PS
1, RO / PS
1, RO / PS
0, RO
0, RO / PS
0, RO
0, RO / LH
1, RO / PS
0, RO / LL
0, RO / LH
1, RO / PS
Default
USB to 10/100 Fast Ethernet/HomePNA Controller
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”.
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
Description
AX88772