ADLINK cExpress-BL - Manual (Page 39)

cExpress-BL Page 39
5.1.4 Exception Codes
In case of an error, the BMC drives a blinking code on the blue Status LED (LED1). The same error code is also reported by the BMC Flags
register. The Exception Code is not stored in the Flash Storage and is cleared when the power is removed. Therefore, a “Clear Exception
Code” command is not needed or supported.
Exception Code Error Message
0 NOERROR
2 NO_SUSCLK
3 NO_SLP_S5
4 NO_SLP_S4
5 NO_SLP_S3
6 BIOS_FAIL
7 RESET_FAIL
8 POWER_FAIL
9 LOW_VIN
11 VCORE
12 +P1V05_S
13 +P3V3_A
14 +VDDQ
15 +P5V_A
16 +P12V
18 CRITICAL_TEMP
19 NO_CB_PWROK
20 NO_SYS_GD
21 NO_VCORE_GD
22 NO_XDP_PIN47
5.1.5 BMC Flags
The BMC Flags register returns the last detected Exception Code since power-up and shows the BIOS in use and the power mode.
Bit Description
[ 0 ~ 4 ] Exception Code
[ 6 ] 0 = AT mode
1 = ATX mode
[ 7 ] 0 = Standard BIOS
1 = Fail-safe BIOS.