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公开(公告)号:US06292038B1
公开(公告)日:2001-09-18
申请号:US09221003
申请日:1998-12-23
IPC分类号: H03K513
CPC分类号: G06F1/324 , G06F1/08 , G06F1/24 , H03K5/1252 , H03L7/00 , Y02D10/126
摘要: The present invention includes a method and apparatus for smooth transitions (switching) between asynchronous clocks without the occurrence of glitches. In one embodiment the present invention is used when powering up and powering down a computer system and transitioning between a relatively faster primary clock and a slower alternate clock. In another embodiment the present invention is used for transitioning between a relatively faster primary clock to a slower alternate clock to conserve power, for example, when a laptop transitions between use mode and sleep mode.
摘要翻译: 本发明包括用于在不发生毛刺的情况下在异步时钟之间平滑地转换(切换)的方法和装置。 在一个实施例中,本发明用于在对计算机系统供电和断电并在相对较快的主时钟和较慢的交替时钟之间转换时使用。 在另一个实施例中,本发明用于在相对较快的主时钟到较慢的交替时钟之间转换以节省功率,例如当笔记本电脑在使用模式和睡眠模式之间转换时。