APM BIOS接口知識講座(ppt 53頁)

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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