LAN83C180_01 SMSC [SMSC Corporation], LAN83C180_01 Datasheet - Page 16

• Manufacturer Part Number: LAN83C180_01
• Description: 10/100 Fast Ethernet PHY Transceiver
• Manufacturer: SMSC [SMSC Corporation]

Reg 24 - LAN83C180 Specific Register
Reg 25 - ANEG Status
Reg 26 - Symbol Error Counter
SMSC DS – LAN83C180
15:14
12:8
15:0
BIT
BIT
BIT
0:3
13
12
11
10
15
14
13
9
8
7
6
5
4
3
2
1
0
7
6
5
4
Aneg complete
SQE Disable
Test Access
JAB Disable
LED Control
Byp ALIGN
BIT NAME
MINT POL
ANEG state
CRS_CTL
Force RX
BIT NAME
BIT NAME
Force TX
Byp ENC
Byp SCR
Ability mtc
DISCEN
Reserved
Reserved
Loop 10
RX_ERR
Pol Dis
counter
Duplex
Speed
MF
Pol
PA
Reserved SMSC test access only
0 = COLST active on collision
1 = COLST active on Sync/polarity
0 = MINT output active low
1 = MINT output active high
Disable 10BASE-T autopolarity correction
0 = SQE generation (normal operation)
1 = No SQE generation
0 = In case of jabber the 10BASE-T will cut the
frame (normal operation)
1 = Jabber function disable
Disable loopback of TX to RX in 10BASE-T half
duplex
Force reception regardless of link
Force transmission regardless of link
CRS behavior in FDX –
0 = CRS is active during transmission only
1= CRS active during reception only
0 = Normal operation
1 = Disable the MD preamble function
0 = Normal operation
1 = Bypass the aligner function
0 = Normal operation
1 = Bypass the 4B5B encoder function
0 = Normal operation
1 = Bypass the 4B5B scrambler function
Disconnect mechanism enable
Test mode only - do not set high
Test mode only - do not set high
10BASE-T polarity sense
PHY address
0 = Aneg completed
1 = Aneg did not complete (same as 1.5)
ANEG result - duplex operation
0 = HDX, 1 = FDX
ANEG result - speed of operation
0 = 10, 1 = 100
1 = abilities matched
ANEG state machine current state
Number of RX_ERR events since last read –
clears either in change of speed or read of this
reg.
Page 16
DESCRIPTION
DESCRIPTION
DESCRIPTION
DEFAULT
DEFAULT
DEFAULT
PA<4:0>
0 – DTE
1 – RPT
00b
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Rev. 08/24/2001
TYPE
TYPE
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
RO
SC