LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Table 49. Auto-Negotiation Expansion (Address 6)
Bit
Name
Reserved
Description
Type 1
Default
6.15:6
Ignore on read.
RO
0
This bit indicates the status of the auto-negotiation
variable base page. It flags synchronization with the
auto-negotiation state diagram, allowing detection of
interrupted links. This bit is only used if Register bit
16.1 (Alternate NP feature) is set.
RO/
LH
6.5
Base Page
0
1 = Base page = true
0 = Base page = false
RO/
LH
Parallel
1 = Parallel detection fault has occurred.
0 = Parallel detection fault has not occurred.
6.4
0
Detection Fault
Link Partner
1 = Link partner is next page able.
6.3
6.2
RO
RO
0
1
Next Page Able
0 = Link partner is not next page able.
1 = Local device is next page able.
Next Page Able
Page Received
0 = Local device is not next page able.
1 = Indicates that a new page has been received and
the received code word has been loaded into Register
5 (Base Pages) or Register 8 (Next Pages) as specified
in Clause 28 of IEEE 802.3. This bit is cleared on Read.
If Register bit 16.1 is set, the Page Received bit is also
cleared when mr_page_rx = false or transmit_disable =
true.
RO
LH
6.1
0
0
Link Partner A/N 1 = Link partner is auto-negotiation able.
Able 0 = Link partner is not auto-negotiation able.
6.0
RO
1. RO = Read Only LH = Latching High
Table 50. Auto-Negotiation Next Page Transmit Register (Address 7)
Bit
Name
Description
Type 1
Default
Next Page
(NP)
1 = Additional next pages follow
0 = Last page
7.15
7.14
7.13
R/W
RO
0
0
1
Reserved
Write as 0, ignore on read
Message Page
(MP)
1 = Message page
0 = Unformatted page
R/W
Acknowledge 2
(ACK2)
1 = Complies with message
0 = Cannot comply with message
7.12
R/W
0
0
1 = Previous value of the transmitted Link Code
Word equalled logic zero
Toggle
(T)
7.11
R/W
R/W
0 = Previous value of the transmitted Link Code
Word equalled logic one
Message/Unformatted
Code Field
00000000
001
7.10:0
1. RO = Read Only. R/W = Read/Write
Datasheet
79
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
INTEL [ INTEL ]
