Register Descriptions

 

 

 

 

 

Field

Bit(s)

Initial

Description

 

Value

 

 

 

 

 

 

 

 

 

 

 

 

 

/C/ order set reception indication

 

 

 

 

0b = Receive idle/data stream.

 

 

 

 

1b = Receiving /C/ order sets.

 

RxConfig

29

0b

Provides an indication as to whether the interface is

 

receiving /C/ order set, or normal idle/data stream.

 

 

 

 

 

 

 

 

82544GC/EI only:

 

 

 

 

Valid only in software Auto-Negotiation mode

 

 

 

 

(TXCW.ANE = 0b).

 

 

 

 

 

 

 

 

 

Lost bit synchronization indication

 

 

 

 

0b = Lost synchronization.

 

 

 

 

1b = Bit synchronization (bit is LL).

 

 

 

 

Used to qualify all other bits in the register (when in

 

RxSynchronize

30

0b

software Auto-Negotiation).

 

Each time the Ethernet controller loses bit synchronization,

 

 

 

 

 

 

 

 

this bit becomes ‘0b’ and stays ‘0b’ until read by software.

 

 

 

 

82544GC/EI only:

 

 

 

 

Valid only in software Auto-Negotiation mode

 

 

 

 

(TXCW.ANE = 0b).

 

 

 

 

 

 

 

 

 

Auto Negotiation Complete

 

 

 

 

0b = The contents of the register are undefined in hardware

 

 

 

 

Auto-Negotiation mode (TXCW.ANE = 1b)

 

 

 

 

1b = The contents of the register are valid in hardware Auto-

 

 

 

 

Negotiation mode.

 

ANC

31

0b

Reports the status as required in sub-clause 22.2.4.2.11.

 

This bit remains cleared from the time Auto-Negotiation is

 

 

 

 

 

 

 

 

reset until Auto-Negotiation reaches the “LINK_OK” state.

 

 

 

 

It remains set until Auto-Negotiation is disabled or restarted.

 

 

 

 

This bit has meaning only if TXCW.ANE = 1b. If software

 

 

 

 

Auto-Negotiation is used, it always reads 0b and should be

 

 

 

 

ignored.

 

 

 

 

 

 

13.4.15LED Control1

LEDCTL (00E00h; RW)

31 - 24

23 - 16

15 - 8

7 - 0

LED3 (LINK1000#)

LED2 (LINK100#)

LED1 ACTIVITY#)

LED0 (LINK_UP#)

1.Not applicable to the 82544GC/EI.

Software Developer’s Manual

285

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Image 299
Intel Intel Gigabit Ethernet Controllers, PCI-X manual LED Control1, Ledctl 00E00h RW, Anc, LED1 ACTIVITY# LED0 LINKUP#