Data Sheet

Ethernet Controller I210 — Programming Interface
556
13 Remote Fault R/W 0x0 Update
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 = Set remote fault bit.
0b= Do not set remote fault bit.
12 Reserved R/W 0x0 Update Reserved.
11 Asymmetric Pause R/W Update
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 = Asymmetric pause.
0b = No asymmetric pause.
10 Pause R/W Update
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 = Pause.
0b = No pause.
9 100BASE-T4 R/W 0x0 Retain 0b = Not capable of 100BASE-T4.
8
100BASE-TX Full-
Duplex
R/W Update
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_0.11and 16_0.2); transitions from
power down to normal operation and the copper link goes
down.
If register 0_0.12 is set to 0b and speed is manually forced to 1000
Mb/s in registers 0_0.13 and 0_0.6, then auto-negotiation will still
be enabled and only 1000BASE-T full-duplex is advertised if
register 0_0.8 is set to 1b, and 1000BASE-T half-duplex is
advertised if 0_0.8 set to 0b.
Registers 4_0.8:5 and 9_0.9:8 are ignored. Auto-negotiation is
mandatory per IEEE for proper operation in 1000BASE-T.
1b = Advertise.
0b = Not advertised.
7
100BASE-TX Half-
Duplex
R/W Update
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.
If register 0_0.12 is set to 0b and speed is manually forced to 1000
Mb/s in registers 0.13 and 0.6, then auto-negotiation will still be
enabled and only 1000BASE-T full-duplex is advertised if register
0_0.8 is set to 1b, and 1000BASE-T half-duplex is advertised if 0.8
set to 0b.
Registers 4.8:5 and 9.9:8 are ignored.
Auto-negotiation is mandatory per IEEE for proper operation in
1000BASE-T. 1b = Advertise.
0b = Not advertised.