Datasheet

16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Datasheet
Revision 2.9 (03-01-12) 120 SMSC LAN9220
DATASHEET
5.5.4 PHY Identifier 2
5.5.5 Auto-negotiation Advertisement
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.
Index (In Decimal): 3 Size: 16-bits
BITS DESCRIPTION TYPE DEFAULT
15-10 PHY ID Number Assigned to the 19th through 24th bits of the OUI. RO 0xC0C3h
9 - 4 Model Number. Six-bit manufacturer’s model number. RO
3 - 0 Revision Number. Four-bit manufacturer’s revision number. RO
Index (In Decimal): 4 Size: 16-bits
BITS DESCRIPTION TYPE DEFAULT
15:14 Reserved RO 00
13 Remote Fault. 1 = remote fault detected, 0 = no remote fault R/W 0
12 Reserved R/W 0
11:10 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
R/W 00
9 Reserved RO 0
8 100Base-TX Full Duplex. 1 = TX with full duplex, 0 = no TX full duplex
ability
R/W 1
7 100Base-TX. 1 = TX able, 0 = no TX ability R/W 1
6 10Base-T Full Duplex.
1 = 10Mbps with full duplex
0 = no 10Mbps with full duplex ability
R/W 1
5 10Base-T. 1 = 10Mbps able, 0 = no 10Mbps ability R/W 1
4:0 Selector Field. [00001] = IEEE 802.3 R/W 00001