High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
14.2.8.5
Virtual PHY Auto-Negotiation Advertisement Register (VPHY_AN_ADV)
Offset:
Index (decimal):
1D0h
4
Size:
32 bits
This read/write register contains the advertised ability of the Virtual PHY and is used in the Auto-
Negotiation process with the link partner.
Note: This register is re-written in its entirety by the EEPROM Loader following the release or reset
or a RELOAD command. Refer to Section 10.2.4, "EEPROM Loader," on page 149 for more
information.
BITS
DESCRIPTION
TYPE
DEFAULT
31:16
RESERVED
(See Note 14.27)
RO
-
15
Next Page
RO
0b
This bit determines the advertised next page capability and is always 0.
Note 14.28
0: Virtual PHY does not advertise next page capability
1: Virtual PHY advertises next page capability
14
13
RESERVED
RO
RO
-
Remote Fault
0b
This bit is not used since there is no physical link partner.
Note 14.29
12
11
RESERVED
RO
-
Asymmetric Pause
This bit determines the advertised asymmetric pause capability.
R/W
0b
0: No Asymmetric PAUSE toward link partner advertised
1: Asymmetric PAUSE toward link partner advertised
10
9
Pause
R/W
RO
Note 14.30
This bit determines the advertised symmetric pause capability.
0: No Symmetric PAUSE toward link partner advertised
1: Symmetric PAUSE toward link partner advertised
100BASE-T4
0b
This bit determines the advertised 100BASE-T4 capability and is always 0.
Note 14.31
0: 100BASE-T4 ability not advertised
1: 100BASE-T4 ability advertised
8
100BASE-X Full Duplex
R/W
R/W
R/W
1b
1b
1b
This bit determines the advertised 100BASE-X full duplex capability.
0: 100BASE-X full duplex ability not advertised
1: 100BASE-X full duplex ability advertised
7
100BASE-X Half Duplex
This bit determines the advertised 100BASE-X half duplex capability.
0: 100BASE-X half duplex ability not advertised
1: 100BASE-X half duplex ability advertised
6
10BASE-T Full Duplex
This bit determines the advertised 10BASE-T full duplex capability.
0: 10BASE-T full duplex ability not advertised
1: 10BASE-T full duplex ability advertised
Revision 1.2 (04-08-08)
252
SMSC LAN9312
DATASHEET
SMSC [ SMSC CORPORATION ]
