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

Table 15. Auto-Negotiation Next Page Transmit Register (ANNPTR), address 0x07

Bit

Bit Name

Default

Description

0, RW

Next Page Indication:

0 = No other Next Page Transfer desired.

1 = Another Next Page desired.

RESERVED

0, RO

RESERVED: Writes ignored, read as 0.

1, RW

Message Page:

1 = Message Page.

0 = Unformatted Page.

ACK2

0, RW

Acknowledge2:

1 = Will comply with message.

0 = Cannot comply with message.

Acknowledge2 is used by the next page function to indicate that Lo-

cal 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.

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

was 1.

Toggle is used by the Arbitration function within Auto-Negotiation

to ensure synchronization with the Link Partner during Next Page

exchange. This bit shall always take the opposite value of the Tog-

gle bit in the previously exchanged Link Code Word.

10:0

CODE

<000 0000 0001>,

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 "Unformat-

ted 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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