dp83848qsqx/nopb National Semiconductor Corporation, dp83848qsqx/nopb Datasheet - Page 41

• Manufacturer Part Number: dp83848qsqx/nopb
• Description: Phyter Extended Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver
• Manufacturer: National Semiconductor Corporation

10:0
15:5
Bit
Bit
15
14
13
12
11
13.1.8 Auto-Negotiate Expansion Register (ANER)
This register contains additional Local Device and Link Partner status information.
4
3
2
1
0
13.1.9 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.
LP_NP_ABLE
LP_AN_ABLE
RESERVED
RESERVED
Bit Name
TOG_TX
PAGE_RX
NP_ABLE
Bit Name
CODE
ACK2
NP
MP
PDF
TABLE 20. Auto-Negotiation Next Page Transmit Register (ANNPTR), address 0x07h
TABLE 19. Auto-Negotiate Expansion Register (ANER), address 0x06h
<000 0000 0001>, RW Code:
0, RO/COR
Default
1, RO/P
Default
0, RW
1, RW
0, RW
0, RO
0, RO
0, RO
0, RO
0, RO
0, RO
RESERVED: Writes ignored, read as 0.
Parallel Detection Fault:
1 = A fault has been detected via the Parallel Detection function.
0 = A fault has not been detected.
Link Partner Next Page Able:
1 = Link Partner does support Next Page.
0 = Link Partner does not support Next Page.
Next Page Able:
1 = Indicates local device is able to send additional Next Pages.
Link Code Word Page Received:
1 = Link Code Word has been received, cleared on a read.
0 = Link Code Word has not been received.
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.
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.
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.
41
Description
Description
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