Intel PCI-X, Intel Gigabit Ethernet Controllers manual 82544GC/EI Only, ANEG3, ANEG2, RF1, RF2

Register Descriptions

82544GC/EI Only:

Table 13-21. Auto-Negotiation Advertisement Register Bit Description (MODE[3:0] is one of 001xb, 0111b)

Field	Bit(s)	Description	Mode	HW Rst	SW Rst
		Values programmed in this register have
		no effect unless Auto-Negotiation is
Reserved	4:0	restarted (PHY Control Register) or the	R/W	00000b	Retain
		link goes down.
		Reserved bit is R/W to allow forward
		compatibility with future IEEE standards.
		1b = Advertise
		0b = Not advertised
1000BASE-X Full	5	Values programmed in this register have	R/W	ANEG[3]	Retain
		no effect unless Auto-Negotiation is
Duplex
		restarted (PHY Control Register) or the
		link goes down.
		Bit 5: ANEG[3] = 1b
		1b = Advertise
		0b= Not advertised
1000BASE-X Half	6	Values programmed in this register have	R/W	ANEG[2]	Retain
		no effect unless Auto-Negotiation is
Duplex
		restarted (PHY Control Register) or the
		link goes down.
		Bit 6: ANEG[2] = 1b
		Values programmed in this register have
Pause	7	no effect unless Auto-Negotiation is	R/W	0b	Retain
		restarted (PHY Control Register) or the
		link goes down.
		Values programmed in this register have
Asymmetric Pause	8	no effect unless Auto-Negotiation is	R/W	000b	Retain
		restarted (PHY Control Register) or the
		link goes down.
		Values programmed in this register have
		no effect unless Auto-Negotiation is
Reserved	11:9	restarted (PHY Control Register) or the	R/W	0b	Retain
		link goes down.
		Reserved bit is R/W to allow forward
		compatibility with future IEEE standards.
		Values programmed in this register have
		no effect unless Auto-Negotiation is
RF1	12	restarted (PHY Control Register) or the	R/W	0b	Retain
		link goes down.
		Ethernet controller has no ability to
		detect remote fault.
		Values programmed in this register have
		no effect unless Auto-Negotiation is
RF2	13	restarted (PHY Control Register) or the	R/W	0b	Retain
		link goes down.
		Ethernet controller has no ability to
		detect remote fault.
Reserved	14	Reserved. Should be set to 0b.	RO	Always 0b

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