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Data Sheet

ManualsBrandsIntel ManualsComputing & OfficeIntel Intel Ethernet Server Adapter I210-T1 - Network adapter 1 Gbps LAN (10/100/1000 Mbps), PCI-Express
561562563564565566567568569570
Ethernet Controller I210 — Programming Interface
568
8.27.3.22 Copper Specific Control Register 3 - Page 0, Register 23
Bits Field Mode HW Rst SW Rst Description
15
1000BASE-T
Transmitter type
R/W 0 Retain
0 = Class B.
1 = Class A.
14
Disable
1000BASE-T
R/W Retain
When set to disabled, 1000BASE-T isnot advertised even if
registers 9_0.9 or 9_0.8 are set to 1b. A write to this register bit
does not take effect until any one of the following occurs:
• Software reset is asserted (register 0_0.15).
• Restart auto-negotiation is asserted (register 0_0.9).
• Power down (register 0_0.11, 16_0.2); transitions from power
down to normal operation and the copper link goes down.
1 = Disable 1000BASE-T advertisement .
0 = Enable 1000BASE-T advertisement.
13 Reverse Autoneg R/W Retain
A write to this register bit does not take effect until any one of the
following occurs:
• Software reset is asserted (register 0_0.15).
• Restart auto-negotiation is asserted (register 0_0.9).
• Power down (register 0_0.11, 16_0.2); transitions from power
down to normal operation and the copper link goes down.
1b = Reverse auto-negotiation.
0b = Normal auto-negotiation.
12
Disable 100BASE-
T
R/W Retain
When set to disabled, 100BASE-TX is not advertised even if
registers 4_0.8 or 4_0.7 are set 1b. A write to this register bit does
not take effect until any one of the following occurs:
• Software reset is asserted (register 0_0.15).
• Restart auto-negotiation is asserted (register 0_0.9).
• Power down (register 0_0.11, 16_0.2); transitions from power
down to normal operation and the copper link goes down.
1b = Disable 100BASE-TX advertisement.
0b = Enable 100BASE-TX advertisement.
11:10
Gigabit Link Down
Delay
R/W 0x0 Retain
This register only has effect if register 23_0.9 is set to 1b.
00b = 0 ms.
01b = 10 ± 2ms.
10b = 20 ± 2ms.
11b = 40 ± 2ms.
9
Speed Up Gigabit
Link Down Time
R/W 0x0 Retain
1b = Enable faster gigabit link down. This mode shall not be
selected if EEE is enabled.
0b = Use IEEE gigabit link down.
8:4 Reserved R/W 0x0 Update Reserved for future use. These bits must be 0x4.