RG82845 S L5YQ Intel, RG82845 S L5YQ Datasheet - Page 76
RG82845 S L5YQ
Manufacturer Part Number
RG82845 S L5YQ
Description
Manufacturer
Intel
Datasheet
1.RG82845_S_L5YQ.pdf
(148 pages)
Specifications of RG82845 S L5YQ
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Register Description
3.5.36
76
Note: An error can generate one and only one error message via the hub interface. It is software’s
ERRCMD—Error Command Register (Device 0)
Address Offset:
Default Value:
Access:
Size:
This register enables various errors to generate a SERR message via the hub interface. Since the
MCH does not have an SERR# signal, SERR messages are passed from the MCH to the ICH2
over the hub interface. When a bit in this register is set, a SERR message will be generated on the
hub interface when the corresponding flag is set in the ERRSTS register. The actual generation of
the SERR message is globally enabled for Device 0 via the PCICMD register.
responsibility to make sure that when an SERR error message is enabled for an error condition,
SMI and SCI error messages are disabled for that same error condition.
15:10
Bit
8:7
Bit
9
6
5
0
Reserved.
SERR on Non-DRAM Lock (LCKERR).
0 = Disable.
1 = Enable. The MCH will generate a hub interface SERR special cycle when a processor lock
Reserved.
SERR on Target Abort on Hub Interface Exception (TAHLA_SERR).
0 = Disable.
1 = Enable. Generation of the hub interface SERR message is enabled when a MCH-originated
SERR on Detecting Hub Interface Unimplemented Special Cycle (HIAUSCERR). SERR
messaging for Device 0 is globally enabled in the PCICMD register.
0 = Disable. MCH does not generate an SERR message for this event.
1 = Enable. MCH generates a SERR message over the hub interface when an unimplemented
Single-bit DRAM ECC Error Flag (DSERR).
0 = Software must write a 1 to clear this bit and unlock the error logging mechanism.
1 = A memory read data transfer had a single-bit correctable error and the corrected data was
sent for the access. When this bit is set, the address, channel number, and device number
that caused the error are logged in the EAP Register. When this bit is set, the EAP, CN, DN,
and ES fields are locked to further single bit error updates until the processor clears this bit
by writing a 1.
cycle is detected that does not hit system memory.
hub interface cycle is completed with “Target Abort” completion packet or special cycle
status.
Special Cycle is received on the hub interface.
CA–CBh
0000h
R/W
16 bits
Description
Description
Intel
®
82845 MCH for SDR Datasheet
R
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