LAN83C183 Datasheet, PDF (64/113 Pages) SMSC Corporation – FAST ETHERNET PHYSICAL LAYER DEVICE

10_HDX 10BASE-TX Half Duplex Capable R 5
10_HDX
Bit Meaning
1 Capable of 10BASE-T Half Duplex operation
0 Not capable (default)
R
Reserved
R [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
R0
CSMA Bit Meaning
1 Capable of 802.3 CSMA¹ Operation
0 Not capable (default)
1. Carrier-Sense, Multiple-Access
3.3.7 Configuration 1 Register (Register 16)
The default value for this register is 0x0022.
15
LNK_DIS
14
XMT_DIS
13
12
11
XMT_PDN TXEN_CRS BYP_ENC
10
9
BYP_SCR
UNSCR_DI
S
8
EQLZR
7
CABLE
6
RLVL0
5
TLVL3
4
TLVL2
3
TLVL1
2
TLVL0
1
TRF1
0
TRF0
LNK_DIS Link Disable
LNK_DIS
Bit Meaning
1 Receive Link Detect function disable
(Force Link Pass)
0 Normal (default)
R/W 15
XMT_DIS Device Reset
XMT_DIS
Bit Meaning
1 TP transmitter disabled
0 Normal (default)
R/WSC 14
XMT_PDN TP Transmit Powerdown
XMT_PDN
Bit Meaning
1 TP transmitter powered down
0 Normal (default)
R/W 13
TXEN_CRSTX_EN to CRS Loopback Disable R/W 12
TXEN_CRS
Bit Meaning
1
TX_EN to CRS loopback disabled
0
Loopback enabled (default)
SMSC DS – LAN83C183
64
Rev. 12/14/2000