dp83840a National Semiconductor Corporation, dp83840a Datasheet - Page 48

• Manufacturer Part Number: dp83840a
• Description: 10/100 Mb/s Ethernet Physical Layer
• Manufacturer: National Semiconductor Corporation

Version A
4.0 Registers
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.
12:10
4:0
Bit
15
14
13
9
8
7
6
5
Bit Name
Reserved
Selector
TX_FD
10_FD
ACK
NP
RF
TX
T4
10
(Continued)
<00000>,
Default
X, RO
0, RO
0, RO
0, RO
0, RO
0, RO
0, RO
0, RO
0, RO
RO
NEXT PAGE INDICATION:
0 = Link Partner not Next Page able
1 = Link Partner is Next Page able
ACKNOWLEDGE:
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.
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:
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:
1 = 100BASE-TX is supported by the Link Partner
0 = 100BASE-TX not supported by the Link Partner
10BASE-T FULL DUPLEX SUPPORT:
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:
1 = 10BASE-T is supported by the Link Partner
0 = 10BASE-T not supported by the Link Partner
PROTOCOL SELECTION BITS: Link Partner's binary encoded protocol
selector.
48
National Semiconductor
Description