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专利名称:
一种低功耗精确的休眠定时器电路及方法
其他题名: Low-power consumption and accurate sleep timer circuit and method
作者: 谢闯; 董策; 段茂强; 张志鹏; 杨志家; 王剑; 崔书平
所属部门: 工业控制网络与系统研究室
专利权人: 中国科学院沈阳自动化研究所
专利代理: 沈阳科苑专利商标代理有限公司 21002
专利国别: 中国
专利类型: 发明
专利状态: 实审
摘要: 本发明涉及一种低功耗精确的休眠定时器电路,包括高频时钟源、低频时钟源、时钟状态指示电路、控制电路、定时器、高频定时余量计算器、低频定时余量计算器、比较器、定时结果判决器。其方法为通过两个定时器的自动切换完成休眠定时。本发明电路采用高频定时器、低频定时器、时钟状态指示电路、控制电路、高频定时余量计算器、低频定时余量计算器等电路结构,采用硬件控制高频定时器、低频定时器的方法,解决了传统需要靠处理器进行切换的缺点,减少了处理器资源开销,提高了定时精度,降低了系统功耗。
英文摘要: The invention relates to a low-power consumption and accurate sleep timer circuit. The low-power consumption and accurate sleep timer includes a high-frequency clock source, a low-frequency clock source, a clock state indicating circuit, a control circuit, timers, a high-frequency timing margin calculator, a low-frequency timing margin calculator, comparators and a timer result decision device. According to a low-power consumption and accurate sleep timing method, sleep timing is completed by means of automatic switching of two timers. According to the circuit of the invention, circuit structures such as the high-frequency clock source, the low-frequency clock source, the clock state indicating circuit, the control circuit, the high-frequency timing margin calculator and the low-frequency timing margin calculator are adopted; and according to the method, hardware is utilized to control the high-frequency timing margin calculator and the low-frequency timing margin calculator. With the circuit and method adopted, a detect that switching is carried out by means of a processor in the prior art can be eliminated, the resource overhead of the processor can be decreased, timing accuracy can be improved, and power consumption of a system can be decreased.
是否PCT专利:
申请日期: 2014-11-24
公开日期: 2016-06-22
专利申请号: CN201410683200.1
公布/公告号: CN105703749A
语种: 中文
产权排序: 1
内容类型: 专利
URI标识: http://ir.sia.cn/handle/173321/19081
Appears in Collections:工业控制网络与系统研究室_专利

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Recommended Citation:
谢闯,董策,段茂强,等. 一种低功耗精确的休眠定时器电路及方法. CN105703749A. 2016.
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文件名: CN201410683200.1.pdf
格式: Adobe PDF
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