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Cortina Systems LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
LXT9785/LXT9785E
Datasheet
249241, Revision 11.0
16 April 2007
7.0 Register Definitions
10
Pause
0 = Link partner is not Pause capable
1 = Link partner can send and receive Pause
R0
9
100BASE-T4
0 = Link partner is not 100BASE-T4 capable
1 = Link partner is 100BASE-T4 capable
R0
8
100BASE-TX
Full-Duplex
0 = Link partner is not 100BASE-TX full-duplex capable
1 = Link partner is 100BASE-TX full-duplex capable
R0
7
100BASE-TX
0 = Link partner is not 100BASE-TX capable
1 = Link partner is 100BASE-TX capable
R0
6
10BASE-T
Full-Duplex
0 = Link partner is not 10BASE-T full-duplex capable
1 = Link partner is 10BASE-T full-duplex capable
R0
5
10BASE-T
0 = Link partner is not 10BASE-T capable
1 = Link partner is 10BASE-T capable
R0
4:0
Selector Field
S<4:0>
<00001> = IEEE 802.3
<00010> = IEEE 802.9 ISLAN-16T
<00000> = Reserved for future auto-negotiation development
<11111> = Reserved for future auto-negotiation development
Unspecified or reserved combinations shall not be transmitted
R
00000
Table 90
Auto-Negotiation Expansion Register (Address 6)
Bit
Name
Description
Type1
Default
15:5
Reserved
Write as 0, ignore on Read
R
0x000
4
Parallel
Detection Fault
0 = Parallel detection fault has not occurred
1 = Parallel detection fault has occurred
R/
LH
0
3
Link Partner
Next Page Able
0 = Link partner is not next page able
1 = Link partner is next page able
R0
2
Next Page Able
0 = Local device is not next page able
1 = Local device is next page able
R1
1
Page Received
Indicates that a new page has been received and the
received code word has been loaded into Register 5 or
Register 8 as specified in clause 28 of 802.3.
0 = Three identical and consecutive link code words have
not been received from link partner
1 = Three identical and consecutive link code words have
been received from link partner
R/
LH
0
Link Partner
A/N Able
0 = Link partner is not auto-negotiation able
1 = Link partner is auto-negotiation able
R0
1. R = Read Only, LH = Latching High – cleared when read
Table 89
Auto-Negotiation Link Partner Base Page Ability Register (Address 5)
Bit
Name
Description
Type1
Default2
1. R = Read Only
2. Default value at the start of auto-negotiation code word transmission.