Datasheet – SMSC FlexPWR LAN8720 User Manual
Page 43
Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
43
Revision 1.0 (05-28-09)
DATASHEET
4.9
100Base-T4
1 = T4 able,
0 = no T4 ability
This Phy does not support 100Base-T4.
RO
0
4.8
100Base-TX Full
Duplex
1 = TX with full duplex,
0 = no TX full duplex ability
RW
Set by
MODE[2:0]
bus
4.7
100Base-TX
1 = TX able,
0 = no TX ability
RW
1
4.6
10Base-T Full
Duplex
1 = 10Mbps with full duplex
0 = no 10Mbps with full duplex ability
RW
Set by
MODE[2:0]
bus
4.5
10Base-T
1 = 10Mbps able,
0 = no 10Mbps ability
RW
Set by
MODE[2:0]
bus
4.4:0
Selector Field
[00001] = IEEE 802.3
RW
00001
Table 5.26 Register 5 - Auto Negotiation Link Partner Ability
ADDRESS
NAME
DESCRIPTION
MODE
DEFAULT
5.15
Next Page
1 = “Next Page” capable,
0 = no “Next Page” ability
This Phy does not support next page ability.
RO
0
5.14
Acknowledge
1 = link code word received from partner
0 = link code word not yet received
RO
0
5.13
Remote Fault
1 = remote fault detected,
0 = no remote fault
RO
0
5.12:11
Reserved
RO
0
5.10
Pause Operation
1 = Pause Operation is supported by remote MAC,
0 = Pause Operation is not supported by remote MAC
RO
0
5.9
100Base-T4
1 = T4 able,
0 = no T4 ability.
This Phy does not support T4 ability.
RO
0
5.8
100Base-TX Full
Duplex
1 = TX with full duplex,
0 = no TX full duplex ability
RO
0
5.7
100Base-TX
1 = TX able,
0 = no TX ability
RO
0
5.6
10Base-T Full
Duplex
1 = 10Mbps with full duplex
0 = no 10Mbps with full duplex ability
RO
0
5.5
10Base-T
1 = 10Mbps able,
0 = no 10Mbps ability
RO
0
5.4:0
Selector Field
[00001] = IEEE 802.3
RO
00001
Table 5.25 Register 4 - Auto Negotiation Advertisement (continued)
ADDRESS
NAME
DESCRIPTION
MODE
DEFAULT