High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
14.4.2.5
Port x PHY Auto-Negotiation Advertisement Register (PHY_AN_ADV_x)
Index (decimal):
4
Size:
16 bits
This read/write register contains the advertised ability of the Port x PHY and is used in the Auto-
Negotiation process with the link partner.
Note: This register is re-written by the EEPROM Loader following the release of reset or a RELOAD
command. Refer to Section 10.2.4, "EEPROM Loader," on page 149 for additional information.
BITS
DESCRIPTION
TYPE
DEFAULT
15
Next Page
R/W
0b
This bit determines the advertised next page capability. The LAN9312 is not
next page capable. Therefore, this bit must always be 0.
0: PHY does not advertise next page capability
1: PHY advertises next page capability
14
13
RESERVED
RO
-
Remote Fault
R/W
0b
This bit determines if remote fault indication will be advertised to the link
partner.
0: Remote fault indication not advertised
1: Remote fault indication advertised
12
11
RESERVED
R/W
R/W
0b
Note:
This bit should be written as 0.
Asymmetric Pause
This bit determines the advertised asymmetric pause capability.
0b
Note 14.53
0: No Asymmetric PAUSE toward link partner advertised
1: Asymmetric PAUSE toward link partner advertised
10
9
Symmetric Pause
R/W
R/W
Note 14.53
Note 14.54
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. The LAN9312
does not support T4 capability. Therefore, this bit must always be 0.
0: 100BASE-T4 ability not advertised
1: 100BASE-T4 ability advertised
8
7
100BASE-X Full Duplex
R/W
R/W
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
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
Revision 1.2 (04-08-08)
294
SMSC LAN9312
DATASHEET
SMSC [ SMSC CORPORATION ]
