DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 34

• Manufacturer Part Number: DM9620
• Description: USB2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

6.6 Auto-negotiation Link Partner Ability Register (ANLPAR) – 05H
This register contains the advertised abilities of the link partner when received during Auto-negotiation.
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
12-11
4-0
Bit
13
10
15
14
13
9
8
7
6
5
RESERVED
Bit Name
TX_HDX
TX_FDX
10_FDX
10_HDX
Selector
ACK
FCS
RF
NP
RF
T4
<00001>, RW
0, RO/P
Default
X, RW
0, RW
0, RW
1, RW
1, RW
1, RW
1, RW
0, RO
0, RO
0, RO
0 = Not acknowledged
The PHY'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 PHY 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 is supported by the local device
0 = 100BASE-TX 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 is supported by the local device
0 = 10BASE-T is not supported
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.
Next page indication:
0 = Link partner, no next page available
1 = Link partner, next page available
Acknowledge:
1 = Link partner ability data reception acknowledged
0 = Not acknowledged
The PHY's auto-negotiation state machine will automatically
control 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
USB2.0 to Fast Ethernet Controller
Description
DM9620
34