System Management Bus Interface
154
Intel
®
Itanium
®
Processor 9300 Series and 9500 Series Datasheet
6.4.4.5
Maximum Memory Transfer Rate
Offset 39h-3Bh provides maximum memory transfer rate on the Intel
®
Scalable
Memory Interconnect (Intel
®
SMI). Systems may need to read this offset to decide if
processors and Intel
®
75xx Scalable Memory Buffers support the same Intel
®
SMI
transfer rate. Six 4-bit BCD digits are used to provide the maximum transfer rate in
MT/s.
Example
: A speed of 4.8 GT/s is shown as 004800h.
6.4.4.6
Minimum Memory Transfer Rate
Offset 3Ch-3Eh provides minimum “operating” memory transfer rate on the Intel
®
Scalable Memory Interconnect. Six 4-bit BCD digits are used to provide the minimum
transfer rate in MT/s.
6.4.4.7
Uncore Voltage
Offset 3Fh-40h is the nominal processor Uncore voltage for this part, rounded to the
next thousandthin mV and reflected in BCD.
Example
: 1200 mV is stored as 3Fh: 00h, 40h: 12h.
6.4.4.8
Uncore Voltage Tolerance
Offset 41h and 42h contain the Uncore voltage tolerances, high and low respectively.
These use a decimal to Hexadecimal conversion. Example: 20 mV tolerance would be
saved as 14h.
6.4.5
Cache Data
This section contains cache related data.
6.4.5.1
L3 Cache Size
Offset 46h-47h is the L3 cache size field. The field reflects the size of the level three
cache in MBytes in bcd format.
Example:
The Intel
®
Itanium
®
Processor 9300 Series has a 24 MB L3 cache. Thus,
offsets 46h & 47h will contain 24 & 00 respectively.
6.4.5.2
Cache Voltage
Offset 48h-49h is the nominal processor cache voltage for the Intel
®
Itanium
®
Processor 9300 Series processor, rounded to the next thousandth, in mV and is
reflected in bcd.
These fields are RESERVED for the Intel
®
Itanium
®
Processor 9500 Series.
6.4.5.3
Cache Voltage Tolerance
Offset 4Ah and 4Bh contain the cache voltage tolerances, high and low respectively.
These use a decimal to Hexadecimal conversion.
Example:
20 mV tolerance would be saved as 14h.
These fields are RESERVED for the Intel
®
Itanium
®
Processor 9500 Series.
Summary of Contents for BX80569Q9550 - Core 2 Quad 2.83 GHz Processor
Page 10: ...Introduction 10 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 22: ...Introduction 22 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 72: ...Electrical Specifications 72 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 118: ...Pin Listing 118 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 132: ...Mechanical Specifications 132 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 142: ...Thermal Specifications 142 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...
Page 170: ...170 Intel Itanium Processor 9300 Series and 9500 Series Datasheet ...