DP83867CSRGZR.B datasheet(53/129 Pages) TI2

53 / 129 page

7.6.8 Auto-Negotiation Next Page Transmit Register (ANNPTR)

This register contains the next page information sent by this device to the Link Partner during Auto-Negotiation.

Table 7-17. Auto-Negotiation Next Page Transmit Register (ANNPTR), Address 0x0007

BIT

BIT NAME

DEFAULT

DESCRIPTION

0, RW

Next Page Indication:

0 = No other Next Page Transfer desired.

1 = Another Next Page desired.

ACK

0, RO

Acknowledge:

1 = Acknowledge reception of link code word

0 = Do not acknowledge of link code word.

1, RW

Message Page:

1 = Current page is a Message Page.

0 = Current page is an Unformatted Page.

ACK2

0, RW

Acknowledge2:

1 = Complies with message.

0 = Cannot comply with message.

Acknowledge2 is used by the next page function to indicate that

Local Device has the ability to comply with the message received.

TOG_TX

0, RO

Toggle:

1 = Value of toggle bit in previously transmitted Link Code Word was

0 = Value of toggle bit in previously transmitted Link Code Word was

Toggle is used by the Arbitration function within Auto-Negotiation

to verify synchronization with the Link Partner during Next Page

exchange. This bit always take the opposite value of the Toggle bit in

the previously exchanged Link Code Word.

10:0

CODE

000 0000 0001,

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 shall be

interpreted as a "Message Page”, as defined in Annex 28C of IEEE

802.3u. Otherwise, the code shall be 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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DP83867CS, DP83867IS, DP83867E

SNLS504F – OCTOBER 2015 – REVISED JANUARY 2025

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