DM9161B
10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver
Final 26
Version: DM9161B-12-DS-F01
January 31, 2008
8.5 Auto-negotiation Advertisement Register (ANAR) - 04
This register contains the advertised abilities of this DM9161B device as they will be transmitted to its link partner
during Auto-negotiation.
Bit Bit Name Default Description
4.15 NP 0,RO/P Next page Indication
1 = Next page available
0 = No next page available
The DM9161B has no next page, so this bit is permanently set to 0
4.14 ACK 0,RO Acknowledge
1 = Link partner ability data reception acknowledged
0 = Not acknowledged
The DM9161B's auto-negotiation state machine will automatically
control this bit in the outgoing FLP bursts and set it at the
appropriate time during the auto-negotiation process. Software
should not attempt to write to this bit.
4.13 RF 0, RW Remote Fault
1 = Local device senses a fault condition
0 = No fault detected
4.12-4.11 Reserved X, RW Reserved
Write as 0, ignore on read
4.10 FCS 0, RW Flow Control Support
1 = Controller chip supports flow control ability
0 = Controller chip doesn’t support flow control ability
4.9 T4 0, RO/P 100BASE-T4 Support
1 = 100BASE-T4 is supported by the local device
0 = 100BASE-T4 is not supported
The DM9161B does not support 100BASE-T4 so this bit is
permanently set to 0
4.8 TX_FDX 1, RW 100BASE-TX Full Duplex Support
1 = 100BASE-TX full duplex is supported by the local device
0 = 100BASE-TX full duplex is not supported
4.7 TX_HDX 1, RW 100BASE-TX Support
1 = 100BASE-TX half duplex is supported by the local device
0 = 100BASE-TX half duplex is not supported
4.6 10_FDX 1, RW 10BASE-T Full Duplex Support
1 = 10BASE-T full duplex is supported by the local device
0 = 10BASE-T full duplex is not supported
4.5 10_HDX 1, RW 10BASE-T Support
1 = 10BASE-T half duplex is supported by the local device
0 = 10BASE-T half duplex is not supported
4.4-4.0 Selector <00001>, RW Protocol Selection Bits
These bits contain the binary encoded protocol selector supported
by this node
<00001> indicates that this device supports IEEE 802.3 CSMA/CD
