JG82855GMESL7VN Datasheet, PDF (77/213 Pages) Intel Corporation – Intel® 855GM/855GME Chipset Graphics and Memory Controller Hub (GMCH)

Register Description
R
4.8.23
SCICMD – SCI Error Command Register (Device 0)
Address Offset:
Default Value:
Access:
Size:
67h
00h
Read/Write
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
7:4
3
2
1
0
Description
Reserved
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.
Reserved
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.
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.
Datasheet
77