Datasheet

DP83640
SNOSAY8E –SEPTEMBER 2007–REVISED APRIL 2013 www.ti.com
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 Default Description
15 NP 0, RO Next Page Indication:
1 = Link Partner desires Next Page Transfer.
0 = Link Partner does not desire Next Page Transfer.
14 ACK 0, RO 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.
13 MP 0, RO Message Page:
1 = Message Page.
0 = Unformatted Page.
12 ACK2 0, RO 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.
11 TOGGLE 0, RO Toggle:
1 = Previous value of the transmitted Link Code word equalled 0.
0 = Previous value of the transmitted Link Code word equalled 1.
10:0 CODE 000 0000 0000, RO 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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