DP83620SQE Datasheet, PDF (75/105 Pages) Texas Instruments – DP83620 Industrial Temperature Single Port 10/100 Mbps Ethernet Physical Layer

DP83620
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SNLS339C – JANUARY 2011 – REVISED APRIL 2013
10.1.7 Auto-Negotiation Link Partner Ability Register (ANLPAR) (Next Page)
Table 10-9. Auto-Negotiation Link Partner Ability Register (ANLPAR) (Next Page), address 0x05
Bit
Bit Name
15
NP
14
ACK
13
MP
12
ACK2
11
TOGGLE
10:0
CODE
Default
0, RO
0, RO
0, RO
0, RO
0, RO
000 0000 0000, RO
Description
Next Page Indication:
1 = Link Partner desires Next Page Transfer.
0 = Link Partner does not desire Next Page Transfer.
Acknowledge:
1 = Link Partner acknowledges reception of the ability data word.
0 = Not acknowledged.
The Auto-Negotiation state machine will automatically control this bit based on the
incoming FLP bursts. Software should not attempt to write to this bit.
Message Page:
1 = Message Page.
0 = Unformatted Page.
Acknowledge 2:
1 = Link Partner does have the ability to comply to next page message.
0 = Link Partner does not have the ability to comply to next page message.
Toggle:
1 = Previous value of the transmitted Link Code word equalled 0.
0 = Previous value of the transmitted Link Code word equalled 1.
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 IEEE 802.3u Annex 28C of Clause 28. Otherwise, the code shall be
interpreted as an Unformatted Page, and the interpretation is application specific.
10.1.8 Auto-Negotiate Expansion Register (ANER)
This register contains additional Local Device and Link Partner status information.
Table 10-10. Auto-Negotiate Expansion Register (ANER), address 0x06
Bit
Bit Name
Default
Description
15:5
RESERVED
0000 0000 000, RO RESERVED: Writes ignored, Read as 0.
4
PDF
0, RO
Parallel Detection Fault:
1 = A fault has been detected via the Parallel Detection function.
0 = A fault has not been detected.
3
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.
2
NP_ABLE
1, RO/P
Next Page Able:
1 = Indicates local device is able to send additional Next Pages.
1
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.
0
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.
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