Intel 855Gm Platform Component Features; Intel Pentium M Processor And Intel Celeron M Processor; Figure 1. Intel Pentium M Processor And Intel 855Gm Chipset Block Diagram - Intel 855GM Design Manual

System Overview
2.2.

Intel 855GM Platform Component Features

Figure 1. Intel Pentium M Processor and Intel 855GM Chipset Block Diagram

DVI
Device
LVDS
LAN
Modem Codec
®
2.2.1. Intel Pentium
• On-die primary 32-kbyte, instruction cache and 32-kbyte, write-back data cache
• On-die 1-MB second level cache; On-die 512-kB second level cache (Intel Celeron M Processor)
• Supports Streaming SIMD Extensions 2 (SSE2)
• Advanced Gunning Transceiver Logic (AGTL+) bus driver technology
• Enhanced Intel SpeedStep technology to enable real-time dynamic switching between multiple
voltage and frequency points (not supported by Intel Celeron M processor)
• Supports host bus dynamic bus inversion (DINV)
• Dynamic power down of Data Bus buffers
• BPRI# control to Disable Address/Control buffers
• Package/Power
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26
Intel® Pentium® M
Processor or Intel
CK-408
Celeron® M Processor
DVOB & DVOC
1.5 V Intel® 855GM
CRT
732 Micro-
Hub Interface 1.5
ATA100 IDE (2)
Intel®
82801DBM
USB2.0/1.1 (6)
421 BGA
(ICH4-M)
AC'97 2.2/2.3
Audio Codec
®
M Processor and Intel Celeron M Processor
478-pin, Micro-FCPGA and 479-ball Micro-FCBGA packages
VCC-CORE:
Intel Pentium M processor: 1.484 V (highest frequency mode) to 0.844 V (lowest
frequency mode); 0.748 V (Deeper Sleep) core voltage
IMVP-IV
VR
400 MHz BPSB
GMCH
200/266 MHz
FCBGA
Mini-PCI
Intel® PRO/
Wireless
Network
Connection
LPC I/F
FWH
®
Intel 855GM/855GME Chipset Platform Design Guide
DDR
PCI Bus
Moon 2
Cardbus PCI Docking
SIO
KBC
R