Datasheet

LAN8700/LAN8700i
DS00002260A-page 36  2007-2016 Microchip Technology Inc.
TABLE 5-32: REGISTER 2 - PHY IDENTIFIER 1
Address Name Description Mode Default
2.15:0 PHY ID Number Assigned to the 3rd through 18th bits of the
Organizationally Unique Identifier (OUI), respectively.
OUI=00800Fh
RW 0007h
TABLE 5-33: REGISTER 3 - PHY IDENTIFIER 2
Address Name Description Mode Default
3.15:10 PHY ID Number Assigned to the 19
th
through 24
th
bits of the OUI. RW C0h
3.9:4 Model Number Six-bit manufacturer’s model number. RW 0Ch
3.3:0 Revision Number Four-bit manufacturer’s revision number. RW 4h
TABLE 5-34: REGISTER 4 - AUTO NEGOTIATION ADVERTISEMENT
Address Name Description Mode Default
4.15 Next Page 1 = next page capable,
0 = no next page ability
This Phy does not support next page ability.
RO 0
4.14 Reserved RO 0
4.13 Remote Fault 1 = remote fault detected,
0 = no remote fault
RW 0
4.12 Reserved
4.11:10 Pause Operation 00 = No PAUSE
01 = Symmetric PAUSE
10 = Asymmetric PAUSE toward link partner
11 = Both Symmetric PAUSE and Asymmetric
PAUSE toward local device
R/W 00
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 5-35: 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