82598EB Datasheet, PDF (414/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
To ensure software’s ability to read the same Link Partner Link Control Word (located across two
registers), once ANLP1 is read the ANLP2 register is locked until the ANLP2 register is read. ANLP2 does
not hold valid data before ANLP1 is read.
4.4.3.13.29Auto Negotiation Link Partner Link Control Word 2 Register – ANLP2
(0x042B4; RO)
Field
Bit(s)
Initial
Value
Description
LP Technology Ability Field
31:16
0x0
High
LP Auto Negotiation Advertisement Page Fields A[26:11].
LP Technology Ability Field
15:5
0x0
Low
LP Auto Negotiation Advertisement Page Fields A[10:0].
LP Transmitted Nonce Field
4:0
0x0
LP Auto Negotiation Advertisement Page Fields T[4:0].
To ensure software’s ability to read the same Link Partner Link Control Word (located across two
registers), once ANLP1 is read the ANLP2 register is locked until the ANLP2 register is read. ANLP2 does
not hold valid data before ANLP1 is read.
4.4.3.13.30MAC Manageability Control Register – MMNGC (0x042D0; Host-RO/
MNG-RW)
Field
Reserved
MNG_VETO
Bit(s)
31:1
0
Initial
Value
0x0
0b
Description
Reserved
MNG_VETO (default 0) access read/write by manageability, read only to the
host.
0b = No specific constraints on link from manageability.
1b = Hold off any low-power link mode changes. This is done to avoid link loss
and interrupting manageability activity.
4.4.3.13.31Auto Negotiation Link Partner Next Page 1 Register – ANLPNP1
(0x042D4; RO)
Field
LP AN Next Page
Low
Bit(s)
31:0
Initial
Value
0x0
Description
LP AN Next Page Fields D[31:0]
[31:16] = Unformatted Code.
[15] = NP.
[14] = Acknowledge.
[13] = MP.
[12] = Acknowledge2.
[11] = Toggle.
[10:0] = Message/Unformatted Code.
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