dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 53

• Manufacturer Part Number: dp83630sqx
• Description: Precision Phyter - Ieee 1588 Precision Time Protocol Transceiver
• Manufacturer: National Semiconductor Corporation

10:0
Bit
15
14
13
12
11
14.1.9 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.
RESERVED
Bit Name
TOG_TX
CODE
ACK2
NP
MP
TABLE 22. Auto-Negotiation Next Page Transmit Register (ANNPTR), address 0x07
000 0000 0001, RW
Default
0, RW
1, RW
0, RW
0, RO
0, RO
Next Page Indication:
0 = No other Next Page Transfer desired.
1 = Another Next Page desired.
RESERVED: Writes ignored, read as 0.
Message Page:
1 = Message Page.
0 = Unformatted Page.
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.
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.
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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Description
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