LAN9221_12 Datasheet, PDF (120/151 Pages) SMSC Corporation – High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O

5.5.4 PHY Identifier 2
Index (In Decimal):
3
High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
Size:
16-bits
BITS
DESCRIPTION
15-10 PHY ID Number Assigned to the 19th through 24th bits of the OUI.
9 - 4 Model Number. Six-bit manufacturer’s model number.
3 - 0 Revision Number. Four-bit manufacturer’s revision number.
TYPE
RO
RO
RO
DEFAULT
0xC0C3h
5.5.5 Auto-negotiation Advertisement
Index (In Decimal):
4
Size:
16-bits
BITS
DESCRIPTION
15:14 Reserved
13 Remote Fault. 1 = remote fault detected, 0 = no remote fault
12 Reserved
11:10
9
Pause Operation. (See Note 5.2)
00 No PAUSE
01 Symmetric PAUSE
10 Asymmetric PAUSE
11 Advertise support for both Symmetric PAUSE and Asymmetric PAUSE
Reserved
8 100Base-TX Full Duplex. 1 = TX with full duplex, 0 = no TX full duplex
ability
7 100Base-TX. 1 = TX able, 0 = no TX ability
6 10Base-T Full Duplex.
1 = 10Mbps with full duplex
0 = no 10Mbps with full duplex ability
5 10Base-T. 1 = 10Mbps able, 0 = no 10Mbps ability
4:0 Selector Field. [00001] = IEEE 802.3
TYPE
RO
R/W
R/W
R/W
RO
R/W
R/W
R/W
R/W
R/W
DEFAULT
00
0
0
00
0
1
1
1
1
00001
Note 5.2
When both symmetric PAUSE and asymmetric PAUSE support are advertised (value of
11), the device will only be configured to, at most, one of the two settings upon auto-
negotiation completion.
Revision 2.9 (03-01-12)
120
DATASHEET
SMSC LAN9221/LAN9221i