Datasheet

Register Description
R
Datasheet 77
4.8.23 SCICMD – SCI Error Command Register (Device 0)
Address Offset: 67h
Default Value: 00h
Access: Read/Write
Size: 8 bits
This register enables various errors to generate a SCI Hub Interface Special cycle. When an Error
Flag is set in the ERRSTS register, it can generate a SERR, SMI, or SCI Hub Interface Special
cycle when enabled in the ERRCMD, SMICMD, or SCICMD registers respectively.
Note: An error can generate one and only one Hub Interface Error Special cycle. It is software’s
responsibility to make sure that when an SCI error message is enabled for an error condition,
SERR and SMI Error Messages are disabled for that same error condition.
Bit Description
7:4 Reserved
3 SCI on GMCH Thermal Sensor Trip:
1 = An SCI Hub Interface Special cycle is generated by GMCH when the Thermal Sensor Trip requires
an SCI. A Thermal Sensor Trip Point cannot generate more than one special cycle.
2 Reserved
1 SCI on Multiple-bit ECC Error:
1 = For systems that support ECC, this field must be set to 1.
0 = For systems that do not support ECC, this field must be 0.
0 SCI on Single-bit ECC Error:
1 = For systems that support ECC, this field must be set to 1.
0 = For systems that do not support ECC, this field must be 0.