LAN8720i SMSC [SMSC Corporation], LAN8720i Datasheet - Page 42

• Manufacturer Part Number: LAN8720i
• Description: Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
• Manufacturer: SMSC [SMSC Corporation]

Revision 1.0 (05-28-09)
ADDRESS
ADDRESS
ADDRESS
ADDRESS
3.15:10
4.11:10
2.15:0
3.9:4
3.3:0
4.15
4.14
4.13
4.12
1.4
1.3
1.2
1.1
1.0
PHY ID Number
Revision Number
PHY ID Number
Auto-Negotiate
Pause Operation
Jabber Detect
Remote Fault
Model Number
Capabilities
Remote Fault
Link Status
Extended
Next Page
Reserved
Reserved
NAME
Ability
NAME
NAME
NAME
Table 5.25 Register 4 - Auto Negotiation Advertisement
Table 5.22 Register 1 - Basic Status (continued)
1 = remote fault condition detected
0 = no remote fault
1 = able to perform auto-negotiation function
0 = unable to perform auto-negotiation function
1 = link is up,
0 = link is down
1 = jabber condition detected
0 = no jabber condition detected
1 = supports extended capabilities registers
0 = does not support extended capabilities registers
Assigned to the 3rd through 18th bits of the
Organizationally Unique Identifier (OUI), respectively.
OUI=00800Fh
Assigned to the 19
Six-bit manufacturer’s model number.
Four-bit manufacturer’s revision number.
Table 5.23 Register 2 - PHY Identifier 1
Table 5.24 Register 3 - PHY Identifier 2
1 = next page capable,
0 = no next page ability
This Phy does not support next page ability.
1 = remote fault detected,
0 = no remote fault
00 = No PAUSE
01= Symmetric PAUSE
10= Asymmetric PAUSE toward link partner
11 = Both Symmetric PAUSE and Asymmetric
PAUSE toward local device
DATASHEET
DESCRIPTION
th
DESCRIPTION
DESCRIPTION
DESCRIPTION
42
through 24
Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
th
bits of the OUI.
SMSC LAN8720/LAN8720i
MODE
MODE
MODE
R/W
MODE
RW
RO
RO
RO/
RO/
RO/
RW
RW
RW
RW
RO
RO
LH
LH
LL
DEFAULT
DEFAULT
DEFAULT
DEFAULT
DEVICE
0007h
Datasheet
REV
30h
0Fh
00
0
0
0
X
X
0
1
1