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TLK105

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SLLSEB8C – AUGUST 2012 – REVISED APRIL 2016

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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

DEFAULT

DESCRIPTION

0, RO

Next Page Indication:

1 = No other Next Page Transfer desired

0 = Another Next Page desired

ACK

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

ACK2

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.

Toggle

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.

10:0

CODE

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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