DP83865-EB National Semiconductor, DP83865-EB Datasheet - Page 28

• Manufacturer Part Number: DP83865-EB
• Description: BOARD EVALUATION DP83865
• Manufacturer: National Semiconductor

Specifications of DP83865-EB

• Main Purpose: Interface, Ethernet
• Utilized Ic / Part: DP83865
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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2.0 Register Block
This register contains the next page information sent by this device to its Link Partner during Auto-Negotiation.
10:0
Bit
Bit
11
15
14
13
12
Table 10. Auto-Negotiation Next Page Transmit Register (ANNPTR) address 0x07
Table 11. Auto-Negotiation Next Page Receive Register (ANNPRR) address 0x08
CODE[10:0]
Bit Name
Bit Name
TOG_TX
ACK2
ACK
NP
MP
(Continued)
11’b<000_0000_
1000>, RW
Default
Default
0, RO
0, RO
0, RO
0, RO
0, RO
Toggle:
1 = Value of toggle bit in previously transmitted Link Code Word
was logic 0.
0 = Value of toggle bit in previously transmitted Link Code Word
was logic 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.
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 "Un-
formatted 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.
Next Page Indication:
1 = Another Next Page desired.
0 = No other Next Page Transfer desired.
Acknowledge:
1 = Link Partner acknowledges reception of the next page.
0 = Not acknowledged.
Message Page:
1 = Message Page.
0 = Unformatted Page.
Acknowledge2:
1 = Link Partner will comply with message.
0 = Cannot comply with message.
Acknowledge2 is used by the next page function to indicate that
the Link Partner has the ability to comply with the message re-
ceived.
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Description
Description