Status Leds - ADLINK Technology AMD COM Express Express-VR7 User Manual

Express-VR7 User's Guide

5.2. Status LEDs

Status LED's are mounted on the module to facilitate easier maintenance.
Name Color Connection
LED1 Blue BMC output
LED2 Green Power Source 3Vcc
LED3 Red BMC output and same signal as WDT (B27)
on BtB connector
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LED3 LED2 LED1
Function
Power Sequence Status Code (BMC) Power Changes, RESET (see Exception Codes below)
S0 LED ON
S3/S4/S5 LED OFF
ECO mode LED OFF
Module power up
Watchdog counting
Watchdog timed out
Watchdog RESET
Rebooted after WD RESET
Rebooted after PWRBTN
Rebooted after RESET BTN
Note: Only a RESET not initiated by the BMC can clear the WD LED (user action)
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WD LED = LED OFF
WD LED = Keep Last State
WD LED = LED ON
WD LED = LED ON
WD LED = LED ON
WD LED = LED OFF
WD LED = LED OFF
PICMG COM.0 R3.1