Component Features; Intel ® Pentium ® M Processor; Architectural Features; Packaging/Power - Intel 855GME Design Manual

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Intel 855GME Chipset and Intel
2.3

Component Features

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2.3.1 Intel
2.3.1.1

Architectural Features

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On-die primary 32 Kbyte instruction cache and 32 Kbyte write-back data cache
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On-die 1 Mbyte second level cache
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Supports Streaming SIMD Extensions 2 (SSE2)
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Assisted Gunning Transceiver Logic (AGTL+) bus driver technology
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Enhanced Intel SpeedStep
multiple voltage and frequency points
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Supports host bus Dynamic Bus Inversion (DINV)
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Dynamic power down of data bus buffers
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BPRI# control to disable address/control buffers
2.3.1.2

Packaging/Power

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478-pin, Micro-FCPGA and 479-ball Micro-FCBGA packages
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VCC-CORE for Intel
to 0.956 V (lowest frequency mode); VCCA (1.8 V); VCCP (1.05 V)
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VCC-CORE for Low Voltage Intel
frequency mode) to 0.956 V (lowest frequency mode); VCCA (1.8 V); VCCP (1.05 V)
•
TDP: 24.5 W for the Intel
•
TDP: 12 W for the Low Voltage Intel
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2.3.2 Intel
L2 Cache
All features of the Intel Pentium M processor are supported by the Intel Pentium M Processor on
the 90 nm process with 2 MB L2 cache. The processors also utilize the same package and footprint.
This section only lists the additional on-die enhancements. For more details, see the Intel Pentium
M Processor on 90nm Process with 2 MB L2 Cache Datasheet.
New features on the Intel Pentium M Processor on the 90nm process with 2MB L2 cache include:
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On-die 2-MB L2 cache
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Strained silicon process technology
Voltage and Power Changes:
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Intel
— V
— V
— V
— TDP: 21 W
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Pentium M Processor
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technology to enable real-time dynamic switching between
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Pentium
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Pentium
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Pentium M Processor on 90 nm Process with 2 MB
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Pentium M Processor 745 (90 nm, 2 MB L2 Cache, 1.8 GHz, 400 MHz FSB):
: 1.276 V – 1.340 V
CC-CORE (HFM)
: 0.988 V
CC-CORE (LFM)
: 1.8 V only
CCA
January 2007
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6300ESB ICH Embedded Platform Design Guide
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M Processor at 1.6GHz: 1.484 V (highest frequency mode)
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Pentium M Processor at 1.1 GHz: 1.180 V (highest
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M Processor at 1.6 GHz
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Pentium M Processor at 1.1 GHz
System Overview
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