WG82577LM S LGWS Intel, WG82577LM S LGWS Datasheet - Page 109

• Manufacturer Part Number: WG82577LM S LGWS
• Manufacturer: Intel

Specifications of WG82577LM S LGWS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Non-Volatile Memory (NVM)—82577 GbE PHY
9.3.1.15
Note:
LED 0 - 2 Configuration Defaults (Word 0x18)
This NVM word specifies the hardware defaults for the LED Control (LEDCTL) register
fields controlling the LED1 (LINK_1000), LED0 (LINK/ACTIVITY) and LED2 (LINK_100)
output behaviors. Refer to the Intel
Schematics for LED connection details. Also,
outputs.
Due to the architecture of the 82577 the customized LEDs settings are written to the
82577 by the LAN driver.
process and when resuming from power states S3, S4, and S5 to normal operation until
the LAN driver writes any custom settings. This same behavior is also observed while in
S3 and toggling from ac power (wall outlet) to dc power (battery). Once the LAN driver
loads after a system boot or when resuming from sleep states, the LEDs function as
defined in Word 0x18 of the GbE region of the NVM.
15
14
13
12:10
9
8
7:5
4
3
2:0
Bits
Blink Rate
LED1 Blink
LED1 Invert
LED1 Mode
LED0 Blink
LED0 Invert
LED0 Mode
LED2 Blink
LED2 Invert
LED2 Mode
Name
0b
0b
0b
110b
0b
0b
111b
1b
0b
100b
Default
As a result, the default LEDs are written during the boot
Blink Rate
0b = Blink at 200 ms on and 200 ms off.
1b = Blink at 83 ms on and 83 ms off.
Initial Value of LED2_BLINK Field
0b = Non-blinking.
1b = Blinking.
Initial Value of LED2_IVRT Field
0b = Active-low output.
LED2 Mode
Specifies what event/state/pattern is displayed on the LED2 output.
0110b = 100 Mb/s link_up.
Initial Value of LED1_BLINK Field
0b = Non-blinking.
1b = Blinking.
Initial Value of LED1_IVRT Field
0b = Active-low output.
LED1 Mode
Specifies what event/state/pattern is displayed on the LED1 output.
0111b = 1000 Mb/s link_up.
Initial Value of LED0_BLINK Field
0b = Non-blinking.
1b = Blinking.
Initial Value of LED0_IVRT Field
0b = Active-low output.
LED0 Mode
Specifies what event/state/pattern is displayed on the LED0 output.
100b = Filter activity on.
®
5 Series Family PDG and the 82577 Reference
Table 12
lists mode encodings for LED
Description
102