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Intel
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82575EB Gigabit Ethernet Controller — PCS Link Status - PCS_LSTS (0420Ch; R/W)
Intel
®
82575EB Gigabit Ethernet Controller 324632-003
Software Developer’s Manual and EEPROM Guide Revision: 2.1
372 January 2011
14.3.78 PCS Link Status - PCS_LSTS (0420Ch; R/W)
Reserved 23:21 000b Reserved
FAST LINK
TIMER
24 0b Fast Link Timer
AN timer is reduced if this bit is set.
LINK OK FIX EN 25 1b Link OK Fix Enable
Control for enabling/disabling LinkOK/SyncOK fix. Should be set for normal operation.
Reserved 31:26 0h Reserved
1. Read from EEPROM word 0Fh, bit 11.
Field Bit(s)
Initial
Value
Description
LINK OK 0 0b Link OK
This bit denotes the current link ok status.
0b = Link down.
1b = Link up/OK.
SPEED 2:1 10b Speed
This bit denotes the current operating Speed.
00b = 10 Mb/s.
01b = 100 Mb/s.
10b = 1000 Mb/s.
11b = Reserved.
DUPLEX 3 1b Duplex
This bit denotes the current duplex mode.
1b = Full duplex.
0b = Half duplex.
SYNC OK 4 0b Sync OK
This bit indicates the current value of Sync OK from the PCS Sync state machine.
Reserved 15:5 - Reserved
AN COMPLETE 16 0b AN Complete
This bit indicates that the AN process has completed.
Reserved 15:7 - Reserved
AN_ENABLE 16 0b AN Enable
Setting this bit enables the AN process.
Reserved 17 0b Reserved
AN TIMEDOUT 18 0b AN Timed Out
This bit indicates an AN process was timed out. Valid after the AN Complete bit is set.
Field Bit(s)
Initial
Value
Description