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Chapter 2 CPU-1450 SPM block diagram architecture
The CPU-1450 is a PC/104-Plus module realized with a mezzanine architecture approach and comprises of
two modules:
Celeron Processor Module
PIII Carrier
For better understanding of the Power Management functionality of the CPU-1450 we have shown the
following block logic architecture that focuses on the chipset that manages the power saving functions. In the
diagram the dotted lines show the previous block differences.
Consider that the Celeron Processor Module is fully ACPI compatible but the PIII Carrier has been
developed with the support for APM-based legacy power management for non-ACPI implementations. In
conclusion the complete CPU-1450 assembly is only APM-based legacy power management compliant.
The core of the CPU-1450 soft power management is based on the Intel 82801 ICH2 chipset.