Led Modes - Intel ICH9 Information Manual

ICH8/ICH9—NVM Information Guide
Table 14. LED 1 Configuration and Power Management (Word 17h)
5 LED1 Blink Mode
4 Filtered ACT LED
3:0 LED1 Mode
The following table lists the LED modes defined in bits 3:0 of this word.
Table 15.

LED Modes

Mode (Bits
3:0)
0000b
0001b
0010b
0011b
0100b
0101b
0110b
0111b
1000b
1001b
1010b
1011b
1100b
1101b
1110b
1111b
This bit defines the LED1 blink mode:
0b = Blink at 200 ms on and 200 ms off (slow rate for ICH9).
0b
1b = Blink at 83 ms on and 83 ms off (fast rate for ICH9).
This field should be identical to LED0 Blink Mode.
Enable Filtered Activity LED (while operating with the 82562V)
When set to 0b, the activity LED is activated by the PHY.
when set to 1b, the activity LED is driven by Tx activity or Rx traffic
0b
that match any of the MAC's MAC addresses.
For the 82566/82567, this bit is reserved and should be set to
0b.
These bits represent the initial value of the LED1_MODE field,
which specifies the event, state, or pattern displayed on LED1
(LINK_1000) output.
0111b
A value of 0111b indicates that a 1000 Mb/s link is established and
maintained.
Selected Mode
Asserted when either 10 Mb/s or 1000 Mb/s link is established
LINK_10/1000
and maintained.
Asserted when either 100 Mb/s or 1000 Mb/s link is
LINK_100/1000
established and maintained.
LINK-UP Asserted when any speed link is established and maintained.
Asserted when link is established and packets are being
FILTER_ACTIVITY
transmitted or received that passed MAC filtering.
Asserted when link is established and when there is no
LINK/ACTIVITY
transmit or receive activity.
LINK_10 Asserted when a 10 Mb/s link is established and maintained.
LINK_100 Asserted when a 100 Mb/s link is established and maintained.
LINK_1000 Asserted when a 1000 Mb/s link is established and maintained.
Reserved Reserved.
FULL_DUPLEX Asserted when the link is configured for full duplex operation.
COLLISION Asserted when a collision is observed.
Asserted when link is established and packets are being
ACTIVITY
transmitted or received.
BUS_SIZE Asserted when the MAC detects a 1-lane PCIe* connection.
PAUSED Asserted when the MAC transmitter is flow controlled.
LED_ON Always asserted.
LED_OFF Always de-asserted.
Table 15 defines the values for LED1 Mode.
Source Indication
17