Intel E7520 AT80604004887AA 사용자 설명서
제품 코드
AT80604004887AA
Intel® Xeon® Processor 7500 Datasheet, Volume 1
161
Features
7.5.3.9
PDCKS: Processor Data Checksum
This location provides the checksum of the Processor Core Data Section. Writes to this
register have no effect.
register have no effect.
7.5.4
Processor Uncore Data
This section contains silicon-related data relevant to the processor Uncore.
7.5.4.1
MAXQPI: Maximum Intel® QPI Transfer Rate
Systems may need to read this offset to decide if all installed processors support the
same Intel® QPI Link Transfer Rate. The data provided is the transfer rate, rounded to
a whole number, and reflected in binary coded decimal. Writes to this register have no
effect.
same Intel® QPI Link Transfer Rate. The data provided is the transfer rate, rounded to
a whole number, and reflected in binary coded decimal. Writes to this register have no
effect.
Example: The Intel® Xeon® processor 7500 series supports a maximum Intel® QPI
link transfer rate of 6.4 GT/s. Therefore, offset 2Ah-2Bh has a value of 6400.
link transfer rate of 6.4 GT/s. Therefore, offset 2Ah-2Bh has a value of 6400.
7.5.4.2
MINQPI: Minimum Operating Intel® QPI Transfer Rate
Systems may need to read this offset to decide if all installed processors support the
same Intel® QPI Link Transfer Rate. This does not relate to the “link power up” transfer
rate of 1/4th Ref Clk. The data provided is the transfer rate, rounded to a whole
number, and reflected in binary coded decimal. Writes to this register have no effect.
same Intel® QPI Link Transfer Rate. This does not relate to the “link power up” transfer
rate of 1/4th Ref Clk. The data provided is the transfer rate, rounded to a whole
number, and reflected in binary coded decimal. Writes to this register have no effect.
Example: The Intel® Xeon® processor 7500 series supports a minimum operating
Intel® QPI link transfer rate of 4.8 GT/s. Therefore, offset 2Bh-2Ch has a value of
4800.
Intel® QPI link transfer rate of 4.8 GT/s. Therefore, offset 2Bh-2Ch has a value of
4800.
7.5.4.3
QPIVN: Intel® QPI Version Number
The Intel® QPI Version Number is provided as four 8-bit ASCII characters. Writes to
this register have no effect.
this register have no effect.
Offset:
29h
Bit
Description
7:0
Processor Core Data Checksum
One-byte checksum of the Processor Data Section
00h- FFh: See
for calculation of this value.
Offset:
2Ah-2Bh
Bit
Description
15:0
Maximum Intel® QPI Transfer Rate
0000h-FFFFh: MHz
Offset:
2Ch-2Dh
Bit
Description
15:0
Minimum Intel® QPI Transfer Rate
0000h-FFFFh: MHz