Intel
®
Core
TM
i7-660UE, i7-620LE/UE, i7-610E, i5-520E, i3-330E and Intel
®
Celeron
®
Processor P4505, U3405 Series
August 2010
Datasheet Addendum
Document Number: 323178-003
81
Processor Configuration Registers
6.2
PCI Device 6
Device 6 contains the controls associated with the PCI Express x8 port (Port 1) that is
enabled with bifurcation of the PCI Express x16 root port.
Warning: When reading the PCI Express “conceptual” registers such as this, you may not get a
valid value unless the register value is stable.
The PCI Express based specification defines two types of reserved bits.
Table 22. Channel 1 ECC Error Registers
Bit
Access
Default
Value
RST/
PWR
Description
63:48
RO-V-S
0000h
Core
Error Column Address (ERRCOL):
Row address of the address block of main
memory of which an error (single bit or multi-
bit error) has occurred.
47:32
RO-V-S
0000h
Core
Error Row Address (ERRROW):
Row address of the address block of main
memory of which an error (single bit or multi-
bit error) has occurred
31:29
RO-V-S
000b
Core
Error Bank Address (ERRBANK):
Rank address of the address block of main
memory of which an error (single bit or multi-
bit error) has occurred
28:27
RO-V-S
00b
Core
Error Rank Address (ERRRANK):
Rank address of the address block of main
memory of which an error (single bit or multi-
bit error) has occurred.
26:24
RO
000b
Core
Reserved
23:16
RO-V-S
00b
Core
Error Syndrome (ERRSYND):
Syndrome that describes the set of bits
associated with the first failing quadword
15:2
RO
0000h
Core
P
Reserved
1
RO-V-S
0b
Core
Multiple Bit Error Status (MERRSTS):
This bit is set when an uncorrectable multiple-
bit error occurs on a memory read data
transfer. When this bit is set, the address that
caused the error and the error syndrome are
also logged and they are locked until this bit is
cleared. This bit is cleared when it receives an
indication that the CPU has cleared the
corresponding bit in the ERRSTS register.
0
RO-V-S
0b
Core
Correctable Error Status (CERRSTS):
This bit is set when a correctable single-bit
error occurs on a memory read data transfer.
When this bit is set, the address that caused
the error and the error syndrome are also
logged and they are locked to further single bit
errors, until this bit is cleared. But, a multiple
bit error that occurs after this bit is set will
over-write the address/error syndrome info.
This bit is cleared when it receives an indication
that the CPU has cleared the corresponding bit
in the ERRSTS register.