I347-AT4 Datasheet, PDF (53/148 Pages) Intel Corporation – Intel® Ethernet Network Connection I347-AT4 Datasheet

Device Functionality—I347-AT4
Note:
Table 21.
MODE 3 − Behavior according to Table 21.
MODE 4 − Behavior according to Table 22.
MODE 4 is the same as MODE 3 except the 10 Mb/s and 100 Mb/s are reversed.
MODE 3 Behavior
Status
Table 22.
1000 Mb/s Link - No Activity
1000 Mb/s Link - Activity
100 Mb/s Link - No Activity
100 Mb/s Link - Activity
10 Mb/s Link - No Activity
10 Mb/s Link - Activity
No link
MODE 4 Behavior
LED[5]
LED[3]
LED[1]
Off
Off
Solid Mix
Blink Mix
Solid On
Blink
Off
LED[4]
LED[2]
LED[0]
Solid On
Blink
Solid Mix
Blink Mix
Off
Off
Off
Status
1000 Mb/s Link - No Activity
1000 Mb/s Link - Activity
100 Mb/s Link - No Activity
100 Mb/s Link - Activity
10 Mb/s Link - No Activity
10 Mb/s Link - Activity
No link
LED[5]
LED[3]
LED[1]
Off
Off
Solid On
Blink
Solid Mix
Blink Mix
Off
LED[4]
LED[2]
LED[0]
Solid On
Blink
Off
Off
Solid Mix
Blink Mix
Off
3.18.1
Behavior in Various Low Power States
When the PHY is in software reset, powered down, or the cable detect state, the LEDs
are set to the inactive state in order to save power unless overridden by the designer.
If the LED[x] control (Registers 16_3.11:8, 16_3.7:4, and 16_3.3:0 is set to 10xxb
(forced mode) then the LEDs are forced regardless of the power state. This enables
designers to have direct control over the LEDs. Note that the LED does not BLINK when
the PHY is in low power state.
If the LED[x] control is not set to 10xxb, then the LEDs are forced off when the PHY is
in the software reset, power down state or in the cable detect state. The off value for
LED[x] is defined by the setting in registers 17_3.7:6, 17_3.5:4, 17_3.3:2, 17_3.1:0,
19_3.11:10, and 19_3.9:8.
When the PHY is in the powered up state and not in the cable detect state, the LED[x]
operates normally.
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