DP83846A_11 Datasheet, PDF (37/62 Pages) Texas Instruments – DsPHYTER - Single 10/100 Ethernet Transceiver

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
15
NP
0, RW
Next Page Indication:
0 = No other Next Page Transfer desired.
1 = Another Next Page desired.
14
RESERVED
0, RO
RESERVED: Writes ignored, read as 0.
13
MP
1, RW
Message Page:
1 = Message Page.
0 = Unformatted Page.
12
ACK2
0, RW
Acknowledge2:
11
10:0
TOG_TX
Obsolete ^CODE
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.
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.
<000 0000 0001>, This field represents the code field of the next page transmission.
RW
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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