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硬件 Watchdog 计时器设计规范

更新日期: 9月 1日 2006年

该规范针对设计 watchdog 计时器 (WDT) 硬件的工程师,他们希望设计的硬件可以操作 Microsoft Windows Vista 和 Microsoft Windows Server 2008 提供的 Microsoft Windows 硬件 watchdog 计时器驱动程序(硬件 WDT 驱动程序)。

硬件 WDT 驱动程序为 Microsoft 硬件 watchdog 计时器资源表 (WDAT) 暴露的硬件计时器提供基本的 watchdog 支持。WDAT 是一个固定的资源表,由 Advanced Configuration and Power Interface (ACPI) Specification, Version 2.0 定义。该规范定义一个描述硬件及其用法的接口。在从 BIOS 转换到操作系统时描述硬件。

该规范未说明 BIOS/操作系统转换之前对 WDT 的使用。

Windows Server 2008 仍然支持在 Windows Server 2003 中引入并在 ACPI 硬件 Watchdog 计时器资源表 (WDRT) 中定义的驱动程序实现。关于早期实现的信息,请参见 http://www.microsoft.com/whdc/system/sysinternals/watchdog.mspx.

此信息适用于以下操作系统:
Windows Server 2008
Windows Vista

本白皮书包括以下内容:

  • 定义

  • 约定

  • 目标、典型用法和假设

  • 体系结构说明

在继续操作之前请阅读许可协议。


Hardware Watchdog Timers Design Specification

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