Intel GD82559ER manual Register 2 PHY Identifier Register Bit Definitions, Value 0154H

Networking Silicon — GD82559ER

9.1.3Register 2: PHY Identifier Register Bit Definitions

Bit(s)	Name	Description	Default	R/W
15:0	PHY ID (high	Value: 02A8H	--	RO
	byte)

9.1.4Register 3: PHY Identifier Register Bit Definitions

Bit(s)	Name		Description	Default	R/W
15:0	PHY ID (low byte)	Value: 0154H		--	RO

9.1.5Register 4: Auto-Negotiation Advertisement Register Bit Definitions

Bit(s)	Name	Description	Default	R/W
15	Next Page	Constant 0 = Transmitting primary capability data	0	RO
		page
14	Reserved	This bit is reserved and should be set to 0b.	0	RO
13	Remote Fault	1 = Indicate link partner’s remote fault	0	RW
		0 = No remote fault
12:5	Technology Ability	Technology Ability Field is an 8-bit field containing	00101111	RW
	Field	information indicating supported technologies specific
		to the selector field value.
4:0	Selector Field	The Selector Field is a 5-bit field identifying the type of	00001	RO
		message to be sent via Auto-Negotiation. This field is
		read only in the 82559ER and contains a value of
		00001b, IEEE Standard 802.3.

9.1.6Register 5: Auto-Negotiation Link Partner Ability Register Bit Definitions

Bit(s)	Name	Description	Default	R/W
15	Next Page	This bit reflects the PHY’s link partner’s Auto-	--	RO
		Negotiation ability.
14	Acknowledge	This bit is used to indicate that the 82559ER’s PHY	--	RO
		unit has successfully received its link partner’s Auto-
		Negotiation advertising ability.
13	Remote Fault	This bit reflects the PHY’s link partner’s Auto-	--	RO
		Negotiation ability.
12:5	Technology Ability	This bit reflects the PHY’s link partner’s Auto-	--	RO
	Field	Negotiation ability.
4:0	Selector Field	This bit reflects the PHY’s link partner’s Auto-	--	RO
		Negotiation ability.

Datasheet 67