82598EB Datasheet, PDF (393/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
Reserved
Reserved
Reserved
AN 1G TIMEOUT EN
AN 1G RESTART
Reserved
Reserved
LINK LATCH LOW
FORCE 1G LINK
Reserved
FLV
24:21
0x0
20
0b
19
0b
18
1b
17
0b
16
0b
15:7
0x0
6
0b
5
0b
4:1
0x0
0
0b
Reserved
Reserved – must be set to 0b.
Reserved
Auto Negotiation1 Gb/s Timeout Enable
This bit enables the 1 Gb/s auto negotiation timeout feature.
During 1 Gb/s auto negotiation if the link partner doesn’t respond
with auto negotiation pages but continues to send good IDLE
symbols then LINK UP is assumed. (This enables a link-up condition
when a link partner is not auto-negotiation capable and does not
affect otherwise).
Auto Negotiation 1 Gb/s Restart
Setting this bit restarts the clause 37 1 Gb/s auto negotiation
process. This bit is self clearing.
Reserved
Reserved
Link Latch Low Enable
If this bit is set then Link OK going LOW (negedge) is latched till
CPU read happens. Once CPU read happens, Link OK is
continuously updated until Link OK again goes LOW (negedge is
seen).
Force 1 Gb/s Link
If this bit is set then internal LINK_OK variable is forced to Forced
Link Value, bit 0 of this register. Else LINK_OK is decided by
internal AN/SYNC state machines. This bit is only valid when the
link mode is 1 Gb/s.
Reserved
Forced Link 1 Gb/s Value
This bit denotes the link condition when force link is set.
0b = Forced Link down.
1b = Forced 1 Gb/s link up.
4.4.3.13.3 PCS_1G Link Status Register – PCS1GLSTA (0x0420C; RO)
Reserved
Field
Bit(s)
31:21
Initial
Value
0x0
Reserved.
Description
393