Status Leds - ADLINK Technology cExpress-KL User Manual

4.3.

Status LEDs

To facilitate easier maintenance, status LED's are mounted on the board.
LED1
LED Descriptions
Name Color
LED1 Blue
LED2 Green
LED3 Red
Connector Pinouts on Module
LED2 LED3
Connection Function
BMC output Power Sequence Status Code (BMC)
Power Changes, RESET
(see 5.1.4 Exception Codes below)
Power Source 3Vcc S0
S3/S4/S5
ECO mode
BMC output Module power up
Watchdog counting
and same signal as
Watchdog timed out
WDT (B27) on BtB
Watchdog RESET
connector
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)
Table 3: cExpress-KL LED Descriptions
LED ON
LED OFF
LED OFF
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
cExpress-KL
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