DP83848JSQSLASHNOPB datasheet(56/84 Pages) TI1

56 / 84 page

DP83848H, DP83848J, DP83848K, DP83848M, DP83848T

SNLS250E – MAY 2008 – REVISED APRIL 2015

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6.6.1.1.8 Auto-Negotiate Expansion Register (ANER)

This register contains additional Local Device and Link Partner status information.

Table 6-16. Auto-Negotiate Expansion Register (ANER), address 0x06

Bit

Bit Name

Default

Description

15:5

RESERVED

0, RO

RESERVED: Writes ignored, Read as 0.

PDF

0, RO

Parallel Detection Fault:

1 = A fault has been detected through the Parallel Detection function.

0 = A fault has not been detected.

LP_NP_ABLE

0, RO

Link Partner Next Page Able:

1 = Link Partner does support Next Page.

0 = Link Partner does not support Next Page.

NP_ABLE

1, RO/P

Next Page Able:

1 = Indicates local device is able to send additional “Next Pages”.

PAGE_RX

0, RO/COR

Link Code Word Page Received:

1 = Link Code Word has been received, cleared on a read.

0 = Link Code Word has not been received.

LP_AN_ABLE

0, RO

Link Partner Auto-Negotiation Able:

1 = indicates that the Link Partner supports Auto-Negotiation.

0 = indicates that the Link Partner does not support Auto-Negotiation.

6.6.1.1.9 Auto-Negotiation Next Page Transmit Register (ANNPTR)

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

Negotiation.

Table 6-17. 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 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.

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 Toggle 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 802.3. 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

802.3.

Detailed Description

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DP83848JSQ/NOPB Datasheet(PDF) 56 Page - Texas Instruments

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