LAN83C183 Datasheet, PDF (62/113 Pages) SMSC Corporation – FAST ETHERNET PHYSICAL LAYER DEVICE

RF
RF Bit
1
0
Remote Fault
Meaning
AutoNegotiation remote fault detect
No remote fault detect (default)
R/W 13
R
Reserved
R/W[12:10]
These bits are reserved and must be remain at the default value of
0b00 for proper device operation
T4
T4 Bit
1
0
100BASE-T4 Capable
Meaning
Capable of 100BASE-T4 operation
Not capable (default)
R/W 9
TX_FDX 100BASE-TX Full Duplex Capable R/W 8
TX_FDX
Bit Meaning
1 Capable of 100BASE-TX Full Duplex operation
(default)
0 Not capable
TX_HDX 100BASE-TX Half Duplex Capable R/W 7
TX_HDX
Bit Meaning
1 Capable of 100BASE-TX Half-Duplex operation
(default)
0 Not capable
10_FDX 10BASE-TX Full Duplex Capable R/W 6
10_FDX
Bit Meaning
1 Capable of 10BASE-T Full-Duplex operation
(default)
0 Not capable
10_HDX 10BASE-TX Half Duplex Capable R/W 5
10_HDX
Bit Meaning
1 Capable of 10BASE-T Half-Duplex operation
(default)
0 Not capable
R
Reserved
R/W [4:1]
These bits are reserved and must be remain at the default value of
0x0 for proper device operation
CSMA CSMA 802.3 Capable
CSMA Bit Meaning
R/W 0
1 Capable of 802.3 CSMA¹ operation (default)
0 Not capable
1. Carrier-Sense, Multiple-Access
SMSC DS – LAN83C183
62
Rev. 12/14/2000