DM9000A_06 DAVICOM [Davicom Semiconductor, Inc.], DM9000A_06 Datasheet - Page 34

• Manufacturer Part Number: DM9000A_06
• Description: Ethernet Controller with General Processor Interface
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

8.5 Auto-negotiation Advertisement Register (ANAR) - 04
This register contains the advertised abilities of this DM9000A device as they will be transmitted to its
link partner during Auto-negotiation.
Final
Version: DM9000A-17-DS-F01
May 10, 2006
-4.11
4.15
4.14
4.13
4.12
4.10
Bit
4.9
4.8
4.7
4.6
4.5
Bit Name
TX_HDX
TX_FDX
Reserved
10_HDX
10_FDX
ACK
FCS
NP
RF
T4
Default
0, RO/P
0,RO/P
X, RW
0, RW
0, RW
1, RW
1, RW
1, RW
1, RW
0,RO
Next page Indication
0 = No next page available
1 = Next page available
The DM9000A has no next page, so this bit is permanently
set to 0
Acknowledge
1 = Link partner ability data reception acknowledged
0 = Not acknowledged
The DM9000A'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.
Remote Fault
1 = Local device senses a fault condition
0 = No fault detected
Reserved
Write as 0, ignore on read
Flow Control Support
1 = Controller chip supports flow control ability
0 = Controller chip doesn’t support flow control ability
100BASE-T4 Support
1 = 100BASE-T4 is supported by the local device
0 = 100BASE-T4 is not supported
The DM9000A does not support 100BASE-T4 so this bit is
permanently set to 0
100BASE-TX Full Duplex Support
1 = 100BASE-TX full duplex is supported by the local
device
0 = 100BASE-TX full duplex is not supported
100BASE-TX Support
1 = 100BASE-TX half duplex is supported by the local
device
0 = 100BASE-TX half duplex is not supported
10BASE-T Full Duplex Support
1 = 10BASE-T full duplex is supported by the local device
0 = 10BASE-T full duplex is not supported
10BASE-T Support
1 = 10BASE-T half duplex is supported by the local device
Ethernet Controller with General Processor Interface
Description
DM9000A
34