Intel Intel Gigabit Ethernet Controllers, PCI manual 82541xx 82547GI/EI 82541xx and 82547GI/EI only

Register Descriptions

Table 13-20. Auto-Negotiation Advertisement Register Bit Description

Field	Bit(s)	Description	Mode	HW Rst	SW Rst
		1b = Asymmetric Pause.
		0b = No asymmetric Pause.		0b
Asymmetric Pause		Values programmed in the Auto-
		Negotiation advertisement register
	11	have no effect unless Auto-	R/W	1b for the	Retain
		Negotiation is restarted (PHY Control
ASM_DIR for the				(82541xx
		Register) or link goes down.
(82541xx and				and
82547GI/EI)		82541xx and 82547GI/EI only:		82547GI/
		Advertise Asymmetric Pause direction		EI)
		bit. This bit is used in conjunction with
		PAUSE.
		This bit is reserved and equals 0b.
		Values programmed in the Auto-
		Negotiation advertisement register
		have no effect unless Auto-
Reserved	12	Negotiation is restarted (PHY Control	R/W	0b	Retain
		Register) or link goes down.
		Reserved bit is R/W to allow for
		forward compatibility with future IEEE
		standards.
		1b = Set Remote Fault bit.
		0b = Do not set Remote Fault bit.
Remote Fault	13	Values programmed in the Auto-	R/W	0b	Retain
		Negotiation advertisement register
		have no effect unless Auto-
		Negotiation is restarted (PHY Control
		Register) or link goes down.
Reserved	14	Reserved. Should be set to 0b.	RO	Always 0b
		1b = Advertise.
		0b = Not advertised.
		Values programmed in the Auto-
		Negotiation advertisement register
		have no effect unless Auto-
		Negotiation is restarted (PHY Control
		Register) or link goes down.
		If 1000BASE-T is advertised then the
Next Page	15	required next pages are automatically	R/W	0b	Retain
		transmitted. The Next Page bit should
		equal 0 if no additional next pages are
		needed.
		82541xx and 82547GI/EI only:
		1b = Manual control of Next Page
		(Software).
		0b = Ethernet controller control of Next
		Page (Auto).

1.For the 82541xx and 82547GI/EI, if EEPROM bit ADV10LU is asserted, then the default is set to 0b. Otherwise, the default is 1b.

Software Developer’s Manual 249