TLK105 Datasheet, PDF (51/99 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver

TLK105
TLK106
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SLLSEB8A – AUGUST 2012 – REVISED MARCH 2013
8.1.9 Auto-Negotiation Link Partner Ability Next Page Register (ANLNPTR)
This register contains the next page information sent by this device to its Link Partner during Auto-
Negotiation.
Table 8-12. Auto-Negotiation Link Partner Ability Register Next Page (ANLNPTR), address 0x0008
BIT BIT NAME
15 NP
14 ACK
13 MP
12 ACK2
11 Toggle
10:0 CODE
DEFAULT
DESCRIPTION
0, RO
Next Page Indication:
1 = No other Next Page Transfer desired
0 = Another Next Page desired
0, RO
Acknowledge:
1 = Link Partner acknowledges reception of the ability data word
0 = Not acknowledged
The Auto-Negotiation state machine automatically controls this bit based on the incoming FLP
bursts. Software should not attempt to write to this bit.
1, RO
Message Page:
1 = Message Page
0 = Unformatted Page
0, RO
Acknowledge2:
1 = Link Partner has the ability to comply to next-page message
0 = Link Partner cannot comply to next-page message
Acknowledge2 is used by the next page function to indicate that Local Device has the ability to
comply with the message received.
0, RO
Toggle:
1 = Value of toggle bit in previously transmitted Link Code Word was 0
0 = Value of toggle bit in previously transmitted Link Code Word was 1
Toggle is used by the Arbitration function within Auto-Negotiation to synchronize with the Link
Partner during Next Page exchange. This bit always takes the opposite value of the Toggle bit in
the previously exchanged Link Code Word.
<000 0000 0001>,
RO
Code:
This field represents the code field of the next page transmission. If the MP bit is set (bit 13 of
this register), then the code is interpreted as a Message Page, as defined in annex 28C of IEEE
802.3u. Otherwise, the code is interpreted as an Unformatted Page, and the interpretation is
application specific.
The default value of the CODE represents a Null Page as defined in Annex 28C of IEEE 802.3u.
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