10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
Revision 1.91 (08-18-08) 76 SMSC LAN91C111 REV C
DATASHEET
REM_FLT- Remote Fault Detect
‘1’ indicates a Remote Fault. Latches the ‘1’ condition and is cleared by reading this register or
resetting the PHY.
CAP_ANEG - AutoNegotiation Capable
Indicates the ability (‘1’) to perform ANEG or not (‘0’).
LINK - Link Status
A ‘1’ indicates a valid Link and a ‘0’ and invalid Link. The ‘0’ condition is latched until this register is
read.
JAB - Jabber Detect
Jabber condition detected when ‘1’ for 10Mbps. ‘1’ latched until this register is read or the PHY is reset.
Always ‘0’ for 100Mbps
EXREG - Extended Capability register
‘1’ Indicates extended registers are implemented
9.3 Register 2&3. PHY Identifier Register
These two registers (offsets 2 and 3) provide a 32-bit value unique to the PHY.
9.4 Register 4. Auto-Negotiation Advertisement Register
This register control the values transmitted by the PHY to the remote partner when advertising its
abilities
REG
BITS NAME DEFAULT VALUE R/W SOFT RESET
2 15-0 Company ID 0000000000010110 R Retains Original Value
3 15-10 Company ID 111110 R Retains Original Value
3 9-4 Manufacturer's ID 000100 R Retains Original Value
3 3-0 Manufacturer's Revision # - - - - R Retains Original Value
NP ACK RF Reserved Reserved Reserved T4 TX_FDX
RW R RW RW RW RW RW RW
00 0 00001
TX_HDX 10_FDX 10_HDX Reserved Reserved Reserved Reserved CSMA
RW RW RW RW RW RW RW RW
11 1 00001
