4.0 Registers (Continued)
4.7 AUTO-NEGOTIATION LINK PARTNER ABILITY REGISTER (ANLPAR)
Address 05h
This register contains the advertised abilities of the Link Partner as received during Auto-Negotiation.
Bit
Bit Name
Default
Description
15
NP
0, RO
NEXT PAGE INDICATION:
0 = Link Partner not Next Page able
1 = Link Partner is Next Page able
ACKNOWLEDGE:
14
ACK
0, RO
1 = Link Partner acknowledges reception of the ability data word
0 =Not acknowledged
The DP83840A's Auto-Negotiation state machine will automatically
control the use of this bit from the incoming FLP bursts. Software should
not attempt to write to this bit.
13
RF
0, RO
REMOTE FAULT:
1 = Remote Fault indicated by Link Partner
0 = No Remote Fault indicated by Link Partner
RESERVED: Write as 0, read as don't care.
100BASE-T4 SUPPORT:
12:10
9
Reserved
T4
X, RO
0, RO
1 = 100BASE-T4 is supported by the Link Partner
0 = 100BASE-T4 not supported by the Link Partner
100BASE-TX FULL DUPLEX SUPPORT:
1 = 100BASE-TX Full Duplex is supported by the Link Partner
0 = 100BASE-TX Full Duplex not supported by the Link Partner
100BASE-TX SUPPORT:
8
7
TX_FD
TX
0, RO
0, RO
0, RO
0, RO
1 = 100BASE-TX is supported by the Link Partner
0 = 100BASE-TX not supported by the Link Partner
10BASE-T FULL DUPLEX SUPPORT:
6
10_FD
10
1 = 10BASE-T Full Duplex is supported by the Link Partner
0 = 10BASE-T Full Duplex not supported by the Link Partner
10BASE-T SUPPORT:
5
1 = 10BASE-T is supported by the Link Partner
0 = 10BASE-T not supported by the Link Partner
4:0
Selector
<00000>,
RO
PROTOCOL SELECTION BITS: Link Partner's binary encoded protocol
selector.
Version A
National Semiconductor
48
TI [ TEXAS INSTRUMENTS ]
