SYSTEM AND METHOD FOR ACCESSING A CMOS DEVICE IN A CONFIGURATION AND POWER MANAGEMENT SYSTEM

Described is a system and method by which data accesses to information related to a CMOS device are synchronized. A special “operation region” is provided through which the information is accessed. More specifically, a “CMOS Operation Region” is enabled through which CMOS information is read or written. When an AML interpreter performs a read or write instruction to the CMOS operation region, the ACPI system passes that instruction to a process for handling that operation region, in this example the system kernel. The process may include mechanisms that synchronize accesses to the Operation Region so that a load or store operation is fully completed prior to allowing a subsequent load or store operation. In this way, the information associated with the CMOS that is loaded in memory is not corrupted by asynchronous accesses.