Host Bridge/DRAM Controller Registers (D0:F0)
R
4.1.29
ERRSTS—Error Status (D0:F0)
PCI Device:
Address Offset:
Default Value:
Access:
0
C8h
0000h
R/WC/S, RO
16 bits
Size:
This register is used to report various error conditions via the SERR DMI messaging mechanism.
A SERR DMI message is generated on a zero to one transition of any of these flags (if enabled by
the ERRCMD and PCICMD registers). These bits are set regardless of whether or not the SERR
is enabled and generated. After the error processing is complete, the error logging mechanism can
be unlocked by clearing the appropriate status bit by software writing a 1 to it.
0Bit
Access &
Default
Description
15:13
12
Reserved
R/WC/S
0b
(G)MCH Software Generated Event for SMI:
1 = This bit indicates the source of the SMI was a Device 2 Software Event.
11
R/WC/S
0b
(G)MCH Thermal Sensor Event for SMI/SCI/SERR: This bit indicates that a
(G)MCH Thermal Sensor trip has occurred and an SMI, SCI, or SERR has been
generated. The status bit is set only if a message is sent based on Thermal
event enables in Error command, SMI command, and SCI command registers. A
trip point can generate one of SMI, SCI, or SERR interrupts (two or more per
event is illegal). Multiple trip points can generate the same interrupt, if software
chooses this mode, subsequent trips may be lost. If this bit is already set, an
interrupt message will not be sent on a new thermal sensor event.
10
9
Reserved
R/WC/S
0b
LOCK to non-DRAM Memory Flag (LCKF):
1 = (G)MCH detected a lock operation to memory space that did not map into
DRAM.
8
R/WC/S
0b
Received Refresh Timeout Flag(RRTOF):
1 = 1024 memory core refreshes are enqueued.
Reserved
7:0
92
Datasheet
INTEL [ INTEL ]
