Specification Sheet

Intel
®
Xeon
®
Processor E5-1600/E5-2600/E5-4600 v2 Product Families 51
Datasheet Volume One of Two
Interfaces
2.5.2.6.12 Package Identifier Read
This feature enables the PECI host to uniquely identify the PECI client processor. The
parameter field
encodings shown in Table 2-8 allow the PECI host to access the
relevant processor information as described below.
• CPUID data: This is
the equivalent of data that can be accessed through the
CPUID instruction execution. It contains processor type, stepping, model and
family ID information as shown in Figure 2-21.
• Platform ID data: The Platform ID data can be used to ensure processor
microcode updates are compatible with the processor. The value of the Platform ID
or Processor Flag[2:0] as shown in Figure 2-22 is typically unique to the platform
type and processor stepping. Refer to the Intel®
64 and IA-32 Architectures
Software Developer’s Manual for more information.
ACPI P-T Notify
Write & Read
33 0x0000 New p-state
equivalent of P1
used in
conjunction with
package power
limiting
N/A Read the processor
PCU to determine
the p-state that is
one state below the
turbo frequency as
specified through the
last ACPI Notify
N/A
Caching Agent
TOR Read
39 Cbo Index,
TOR Index,
Bank#;
Read Mode
Caching Agent
(Cbo) Table of
Requests (TOR)
data;
Core ID &
associated valid
bit
N/A Read the Cbo TOR
data for all enabled
cores in the event of
a 3-strike timeout.
Can alternatively be
used to read ‘Core
ID’ data to confirm
that IERR was
caused by a core
timeout
N/A
Thermal Margin
Read
10 0x0000 Thermal margin
to processor
thermal profile
or load line
N/A Read margin to
processor thermal
load line
N/A
Table 2-8. RdPkgConfig() & WrPkgConfig() CPU Thermal and Power Optimization
Services Summary (Sheet 4 of 4)
Service
Index
Value
(decimal)
Parameter
Value
(word)
RdPkgConfig()
Data
(dword)
WrPkgConfig
()
Data
(dword)
Description
Alternate
Inband
MSR or CSR
Access
Figure 2-21. CPUID Data
CPU ID Data
Model
4
20
Stepping ID
3 0
Family ID
16
Processor
Type
1931
RESERVED
27
Extended
Model
Extended
Family ID
78111228
RESERVED
1315 14