LAN83C180_01 Datasheet, PDF (14/22 Pages) SMSC Corporation – 10/100 Fast Ethernet PHY Transceiver

Reg 1 - Status Register
BIT BIT NAME
DESCRIPTION
15
100BaseT4 1 = PHY able to perform 100BaseT4
0 = PHY not able to perform 100BaseT4
14 100Base-TX 1 = PHY able to perform 100Base-TX
– FDX
0 = PHY not able to perform 100Base-TX
13 100Base-TX - 1 = PHY able to perform 100Base-TX
HDX
0 = PHY not able to perform 100Base-TX
12
10Base-T – 1 = PHY able to perform 10Base-T
FDX
0 = PHY not able to perform 10Base-T
11 10BASE-T – 1 = PHY able to perform 10Base-T
HDX
0 = PHY not able to perform 10Base-T
10 100BASET2 1 = PHY able to perform 100BaseT2
– FDX
0 = PHY not able to perform 100BaseT2
9
100BASE-T2 1 = PHY able to perform 100BaseT2
– HDX
0 = PHY not able to perform 100BaseT2
8:7
Reserved Ignore when read
6 MF Preamble 1= Phy accept management frames with short
Supression preamble
0 = Normal preamble only
5
ANEG
1 = ANEG process completed
Complete 0 = ANEG process not completed or not active
4 Remote Fault 1= Remote fault condition detected
0 = No Remote fault condition detected
3
ANEG Able 1 = Phy is able to perform ANEG
0 = Phy is not able to perform ANEG
2
Link Status 1= Link is up
0 = Link is down
1 Jabber Detect 1 = Jabber condition detected
0 = Normal operation
0
Extended 1 = Extended register capability
Regs.
0 = No extended registers
Reg 2 - LAN83C180 Identifier Register
BIT
BIT NAME
DESCRIPTION
15:0
OUI
SMSC OUI bits
Reg 3 - LAN83C180 Identifier Register
BIT
BIT NAME
DESCRIPTION
15:0 OUI/Device ID SMSC OUI bits and device code
Reg 4 - ANEG Advertisement Register
BIT
15
14
13
12:10
9:5
4:0
BIT NAME
NP
Reserved
Remote Fault
Reserved
Technology
Selector Field
DESCRIPTION
Next page able - the LAN83C180 is not able to
perform next page
0 = No remote fault detected
1= A remote fault been detected
T4, 100Fdx, 100Hdx, 10Fdx, 10Hdx
DEFAULT TYPE
0
RO
1
RO
1
RO
1
RO
1
RO
0
RO
0
RO
0
RO
0
RO
0
RO
0
RO
LH
1
RO
0
RO
LL
0
RO
1
RO
DEFAULT TYPE
0282h
RO
DEFAULT TYPE
1C52h
RO
DEFAULT TYPE
0
RO
0
RO
0
R/W
0
R/W
0Fh
R/W
01h
R/W
SMSC DS – LAN83C180
Page 14
Rev. 08/24/2001