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公开(公告)号:US09520865B2
公开(公告)日:2016-12-13
申请号:US14477367
申请日:2014-09-04
Applicant: QUALCOMM Incorporated
Inventor: Lior Amarilio , Alexander Golubitski , Haim Hagay Haller , Felix Kolmakov , Gilad Sthoeger
CPC classification number: H03K5/133 , G06F1/10 , G06F13/4068 , G06F13/4221 , G11C19/00 , H03K5/13 , H03K2005/0015 , Y02D10/14 , Y02D10/151
Abstract: Delay circuits, and related systems and methods are disclosed. In one aspect, a delay circuit is provided that uses logic to delay accurately an output enable signal to reduce or avoid data hazards within a slave device. The delay circuit includes two shift register chains configured to receive an output enable in signal based on a slow clock. A first shift register chain is clocked by a positive edge of a fast clock, and provides a first strobe signal. A second shift register chain is clocked by a negative edge of the fast clock, and provides a second strobe signal. The logic uses the first and second strobe signals, and the output enable in signal, to provide a delayed output enable out signal. The delay circuit provides a highly accurate time delay for the output enable signal to reduce or avoid data hazards in an area and power efficient manner.
Abstract translation: 公开了延迟电路及相关的系统和方法。 在一个方面,提供延迟电路,其使用逻辑来精确地延迟输出使能信号,以减少或避免从设备内的数据危害。 延迟电路包括两个移位寄存器链,其被配置为基于慢时钟接收信号中的输出使能。 第一移位寄存器链由快速时钟的上升沿提供时钟,并提供第一个选通信号。 第二移位寄存器链由快速时钟的负沿计时,并提供第二选通信号。 该逻辑使用第一和第二选通信号,以及信号中的输出使能,以提供延迟的输出使能输出信号。 延迟电路为输出使能信号提供高度准确的时间延迟,以减少或避免一个区域的数据危害和功率有效的方式。
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公开(公告)号:US20160072492A1
公开(公告)日:2016-03-10
申请号:US14477367
申请日:2014-09-04
Applicant: QUALCOMM Incorporated
Inventor: Lior Amarilio , Alexander Golubitski , Haim Hagay Haller , Felix Kolmakov , Gilad Sthoeger
CPC classification number: H03K5/133 , G06F1/10 , G06F13/4068 , G06F13/4221 , G11C19/00 , H03K5/13 , H03K2005/0015 , Y02D10/14 , Y02D10/151
Abstract: Delay circuits, and related systems and methods are disclosed. In one aspect, a delay circuit is provided that uses logic to delay accurately an output enable signal to reduce or avoid data hazards within a slave device. The delay circuit includes two shift register chains configured to receive an output enable in signal based on a slow clock. A first shift register chain is clocked by a positive edge of a fast clock, and provides a first strobe signal. A second shift register chain is clocked by a negative edge of the fast clock, and provides a second strobe signal. The logic uses the first and second strobe signals, and the output enable in signal, to provide a delayed output enable out signal. The delay circuit provides a highly accurate time delay for the output enable signal to reduce or avoid data hazards in an area and power efficient manner.
Abstract translation: 公开了延迟电路及相关的系统和方法。 在一个方面,提供延迟电路,其使用逻辑来精确地延迟输出使能信号,以减少或避免从设备内的数据危害。 延迟电路包括两个移位寄存器链,其被配置为基于慢时钟接收信号中的输出使能。 第一移位寄存器链由快速时钟的上升沿提供时钟,并提供第一个选通信号。 第二移位寄存器链由快速时钟的负沿计时,并提供第二选通信号。 该逻辑使用第一和第二选通信号,以及信号中的输出使能,以提供延迟的输出使能输出信号。 延迟电路为输出使能信号提供高度准确的时间延迟,以减少或避免一个区域的数据危害和功率有效的方式。
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