APM BIOS接口知识讲座(ppt 53页)

资料简介：

1.APM   Introduction
2.APM Model
3.APM Software  Layer
4.APM Software  Interface
5.Firmware Error Codes
6.Summaries
7.Q&A

 

1.1 APM Overview
1.2 APM System
1.3 Terms
What is APM?
   APM( advanced power management) is defined by Intel and Microsoft Corp in 1992. The latest version is 1.2.
Function of APM: Control the device power sate through BIOS .
APM VS  ACPI: In ACPI environment OS control all device’s power state and the BIOS provide system information only.
APM BIOS  is  the software interface to the motherboard and its power managed devices .
APM driver module connects to the APM BIOS and communicate with the APM-aware application.
APM-aware Device Driver modules provides the software interface for add-in devices.
APM-aware Applications interface with the APM driver to monitor and control power management
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