VSC8601 Datasheet
Configuration
Table 9.
Mode Status, Address 1 (0x01) (continued)
Bit
Name
Access Description
Default
4
Remote fault
RO
RO
RO
RO
RO
This bit latches high.
1 = Far-end fault detected.
0
3
2
1
0
Auto-negotiation
capability
1 = Auto-negotiation capable.
1
0
0
1
Link status
This bit latches low.
1 = Link is up.
Jabber detect
Extended capability
This bit latches high.
1 = Jabber condition detected.
1 = Extended register capable.
4.2.3
Device Identification
All 16 bits in both register 2 and register 3 in the VSC8601 device are used to provide
information associated with aspects of the device identification. The following tables list
the possible readouts.
Table 10.
Identifier 1, Address 2 (0x02)
Bit
Name
Access Description
RO OUI most significant bits (3:18)
Default
15:0 Organizationally
unique identifier
(OUI)
0x0007
Table 11.
Identifier 2, Address 3 (0x03)
Bit
Name
Access Description
Default
0x0001
000010
15:10
9:4
OUI
RO
RO
OUI least significant bits (19:24)
VSC8601
Vitesse model
number
3:0
Device revision
number
RO
0001
4.2.4
Auto-Negotiation Advertisement
The bits in address 4 in the main registers space control the VSC8601 device ability to
notify other devices of the status of its auto-negotiation feature. The following table
lists the available settings and readouts.
Table 12.
Device Auto-Negotiation Advertisement, Address 4 (0x04)
Bit
Name
Access Description
Default
15
Next page
transmission
request
R/W
1 = Request enabled
0
14
13
Reserved
RO
0
0
Transmit remote
fault
R/W
1 = Enabled
Revision 4.1
September 2009
Page 41
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
