This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCD90120A: UCD_INT abnormal root cause

Part Number: UCD90120A

Dear sir,

We observe UCD_INT issued with a "reserved status" on its document shown as following:

root@ubuntu:~# ipmitool i2c bus=2 0x68 0x2 0x79
00 10
root@ubuntu:~# ipmitool i2c bus=2 0x68 0x5 0xf3
04 00 00 00 40
root@ubuntu:~# ipmitool i2c bus=2 0x68 0xf 0xea
0e 09 00 02 02 42 02 02 02 02 03 03 03 03 03

From the result of register reading

  • 79h (STATUS_WORD) shows 0x1000 which flag "Bit12 MFR"
  • F3h (MFR_STATUS) shows 0x4000_0000 which flags "Bit30 reserved"

The UCD_INT is always issued even we try to clear it by 03h (CKEAR_FAULTS).

Do you have any idea of this fault which flag with reserved bit?

Thanks.