82598EB Datasheet, PDF (412/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
Signal Detect
11:8
0x0
Link Status Check
7
0b
KX/KX4 AN Page Received
6
0b
KX/KX4 AN Next Page
Received
Reserved
5
0x0
4:0
0x0
Signal Detection
Bit[11, 10, 9, 8] show lane <3,2,1,0> status accordingly per each bit:
0b = A signal is not present.
1b = A signal is present.
1b = Link is up and there was no link down from last time read.
0b = Link is/was down. Latched low upon link down. Self-cleared upon
read.
KX/KX4 Auto Negotiation Page Received
A new link partner page was received during auto negotiation process.
Latch high; clear on read.
KX/KX4 Auto Negotiation Next Page Received
A new link partner next page was received during an auto-negotiation
process.
Reserved
4.4.3.13.26Auto Negotiation Control 2 Register – AUTOC2 (0x042A8; RW)
Field
Reserved
PDD
Reserved
Reserved
LH1GAI
Reserved
Bit(s)
Initial
Value
Description
31
30
29:28
27:24
23
0b
0b¹
00b¹
0000b¹
0b¹
Reserved
Disable the parallel detect part in the KX/KX4 auto negotiation. When
set to 1b, the auto negotiation process avoids any parallel detect
activity and relies only on the DME pages receive and transmit.
1b = Reserved.
0b = Enable the parallel detect (normal operation).
Reserved
Reserved
Latch High 10 Gb/s Aligned Indication
Override any de-skew alignment failures in the 10 Gb/s link (by
latching high). This keeps the link up after first time it reached the
AN_GOOD state in 10 Gb/s (unless RestartAN is set).
21:20
00b
Reserved
412