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公开(公告)号：US08060814B2
公开(公告)日：2011-11-15
申请号：US12461740
申请日：2009-08-21
IPC分类号： G06F11/00
CPC分类号： G06F11/1695 , G06F11/0721 , G06F11/0793 , G06F11/104 , G06F11/1608 , G06F11/167 , G06F11/183
摘要： An integrated circuit includes a plurality of processing stages each including processing logic 1014, a non-delayed signal-capture element 1016, a delayed signal-capture element 1018 and a comparator 1024. The non-delayed signal-capture element 1016 captures an output from the processing logic 1014 at a non-delayed capture time. At a later delayed capture time, the delayed signal-capture element 1018 also captures a value from the processing logic 1014. An error detection circuit 1026 and error correction circuit 1028 detect and correct random errors in the delayed value and supplies an error-checked delayed value to the comparator 1024. The comparator 1024 compares the error-checked delayed value and the non-delayed value and if they are not equal this indicates that the non-delayed value was captured too soon and should be replaced by the error-checked delayed value. The non-delayed value is passed to the subsequent processing stage immediately following its capture and accordingly error recovery mechanisms are used to suppress the erroneous processing which has occurred by the subsequent processing stages, such as gating the clock and allowing the correct signal values to propagate through the subsequent processing logic before restarting the clock. The operating parameters of the integrated circuit, such as the clock frequency, the operating voltage, the body biased voltage, temperature and the like are adjusted so as to maintain a finite non-zero error rate in a manner that increases overall performance.
摘要翻译： 集成电路包括多个处理级，每个处理级包括处理逻辑1014，非延迟信号捕获元件1016，延迟信号捕获元件1018和比较器1024.非延迟信号捕获元件1016捕获来自 处理逻辑1014处于非延迟捕获时间。 在稍后延迟的捕获时间，延迟信号捕获元件1018还从处理逻辑1014捕获一个值。错误检测电路1026和纠错电路1028检测并校正延迟值中的随机误差并提供错误检查的延迟 比较器1024比较错误检查的延迟值和非延迟值，并且如果它们不相等，则这表示非延迟值被太早捕获，并且应该被错误检查的延迟值替换 值。 非延迟值在其捕获之后立即传递到后续处理阶段，因此使用错误恢复机制来抑制后续处理阶段发生的错误处理，例如选通时钟并允许正确的信号值传播 在重新启动时钟之前通过后续的处理逻辑。 调整集成电路的工作参数，例如时钟频率，工作电压，主体偏置电压，温度等，以便以提高整体性能的方式保持有限的非零错误率。
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公开(公告)号：US20070162798A1
公开(公告)日：2007-07-12
申请号：US11636716
申请日：2006-12-11
申请人： Shidhartha Das , David Blaauw , David Bull
发明人： Shidhartha Das , David Blaauw , David Bull
IPC分类号： G01R31/28
CPC分类号： G06F11/1695 , G06F11/0721 , G06F11/0793 , G06F11/104 , G06F11/1608 , G06F11/167 , G06F11/183
摘要： An integrated circuit 2 includes logic circuitry 10 and sequential storage elements 8. Both the logic circuit 10 and sequential storage elements 8 can be subject to particle strikes giving rise to single event upset errors. These single event upset errors can be detected by detecting a transition in the stored value stored by the sequential storage elements 8 occurring outside of a valid transition period associated with that sequential storage element 8.
摘要翻译： 集成电路2包括逻辑电路10和顺序存储元件8。 逻辑电路10和顺序存储元件8都可能发生粒子撞击，从而引起单个事件的不正确错误。 可以通过检测在与该顺序存储元件8相关联的有效过渡时段之外发生的顺序存储元件8存储的存储值中的转变来检测这些单事件中断错误。
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公开(公告)号：US20100058107A1
公开(公告)日：2010-03-04
申请号：US12461740
申请日：2009-08-21
IPC分类号： G06F11/07
CPC分类号： G06F11/1695 , G06F11/0721 , G06F11/0793 , G06F11/104 , G06F11/1608 , G06F11/167 , G06F11/183
摘要： An integrated circuit includes a plurality of processing stages each including processing logic 1014, a non-delayed signal-capture element 1016, a delayed signal-capture element 1018 and a comparator 1024. The non-delayed signal-capture element 1016 captures an output from the processing logic 1014 at a non-delayed capture time. At a later delayed capture time, the delayed signal-capture element 1018 also captures a value from the processing logic 1014. An error detection circuit 1026 and error correction circuit 1028 detect and correct random errors in the delayed value and supplies an error-checked delayed value to the comparator 1024. The comparator 1024 compares the error-checked delayed value and the non-delayed value and if they are not equal this indicates that the non-delayed value was captured too soon and should be replaced by the error-checked delayed value. The non-delayed value is passed to the subsequent processing stage immediately following its capture and accordingly error recovery mechanisms are used to suppress the erroneous processing which has occurred by the subsequent processing stages, such as gating the clock and allowing the correct signal values to propagate through the subsequent processing logic before restarting the clock. The operating parameters of the integrated circuit, such as the clock frequency, the operating voltage, the body biased voltage, temperature and the like are adjusted so as to maintain a finite non-zero error rate in a manner that increases overall performance.
摘要翻译： 集成电路包括多个处理级，每个处理级包括处理逻辑1014，非延迟信号捕获元件1016，延迟信号捕获元件1018和比较器1024.非延迟信号捕获元件1016捕获来自 处理逻辑1014处于非延迟捕获时间。 在稍后延迟的捕获时间，延迟信号捕获元件1018还从处理逻辑1014捕获一个值。错误检测电路1026和纠错电路1028检测并校正延迟值中的随机误差并提供错误检查的延迟 比较器1024比较错误检查的延迟值和非延迟值，并且如果它们不相等，则这表示非延迟值被太早捕获，并且应该被错误检查的延迟值替换 值。 非延迟值在其捕获之后立即传递到后续处理阶段，因此使用错误恢复机制来抑制后续处理阶段发生的错误处理，例如选通时钟并允许正确的信号值传播 在重新启动时钟之前通过后续的处理逻辑。 调整集成电路的工作参数，例如时钟频率，工作电压，主体偏置电压，温度等，以便以提高整体性能的方式保持有限的非零错误率。
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公开(公告)号：US20070103995A1
公开(公告)日：2007-05-10
申请号：US11267574
申请日：2005-11-07
申请人： David Blaauw , David Bull , Shidhartha Das
发明人： David Blaauw , David Bull , Shidhartha Das
CPC分类号： G11C11/418 , G11C8/08 , G11C8/10
摘要： A signal interface for interfacing with an address decoder and a method of address decoding are disclosed. The signal interface comprises: a signal capture element operable to receive an address portion signal associated with a read access to a memory and to provide a first interim address portion signal and a second interim address portion signal, the signal capture element being operable during a pre-charged period to provide a first pre-charged logic level as the first interim address portion signal and the first pre-charged logic level as the second interim address portion signal, the signal capture element being further operable during an evaluate period to output an address portion logic level representative of the address portion signal as the first interim address portion signal and an inverted address portion logic level representative of an inverted address portion signal as the second interim address portion signal; and an inverter circuit operable to receive the first interim address portion signal and the second interim address portion signal from which a first address portion signal and a second address portion signal is respectively derived, the inverter circuit being operable during the pre-charged period to output to an address decoder a second pre-charged logic level as the first address portion signal and the second pre-charged logic level as the second address portion signal, the receipt of the first address portion signal and the second address portion signal at the second pre-charged logic level causing the address decoder to be prevented from causing a data access to the memory from occurring, the inverter circuit having transfer characteristics which cause the first address portion signal and the second address portion signal to be maintained at voltage levels interpreted by the address decoder as being the second pre-charged logic level should the first interim address portion signal or the second interim address portion signal fail to transition to a valid logic level during the evaluate period. By maintaining the address portion signals in this way prevents the address decoder from selecting multiple word lines which ensures no corruption in the state stored in the memory can result due to the inadvertent flow of charge between cells in different rows of the memory even when metastable signals occur during the read access.
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公开(公告)号：US20050246613A1
公开(公告)日：2005-11-03
申请号：US11110961
申请日：2005-04-21
申请人： David Blaauw , David Bull , Shidhartha Das
发明人： David Blaauw , David Bull , Shidhartha Das
CPC分类号： G06F11/1695 , G06F9/3861 , G06F9/3869 , G06F11/0721 , G06F11/0793 , G06F11/104 , G06F11/1608 , G06F11/167 , G06F11/183
摘要： An integrated circuit includes a plurality of processing stages each including processing logic 1014, a non-delayed signal-capture element 1016, a delayed signal-capture element 1018 and a comparator 1024. The non-delayed signal-capture element 1016 captures an output from the processing logic 1014 at a non-delayed capture time. At a later delayed capture time, the delayed signal-capture element 1018 also captures a value from the processing logic 1014. An error detection circuit 1026 and error correction circuit 1028 detect and correct random errors in the delayed value and supplies an error-checked delayed value to the comparator 1024. The comparator 1024 compares the error-checked delayed value and the non-delayed value and if they are not equal this indicates that the non-delayed value was captured too soon and should be replaced by the error-checked delayed value. The non-delayed value is passed to the subsequent processing stage immediately following its capture and accordingly error recovery mechanisms are used to suppress the erroneous processing which has occurred by the subsequent processing stages, such as gating the clock and allowing the correct signal values to propagate through the subsequent processing logic before restarting the clock. The operating parameters of the integrated circuit, such as the clock frequency, the operating voltage, the body biased voltage, temperature and the like are adjusted so as to maintain a finite non-zero error rate in a manner that increases overall performance.
摘要翻译： 集成电路包括多个处理级，每个处理级包括处理逻辑1014，非延迟信号捕获元件1016，延迟信号捕获元件1018和比较器1024。 非延迟信号捕获元件1016在非延迟捕获时间捕获来自处理逻辑1014的输出。 在稍后延迟的捕获时间，延迟信号捕获元件1018还从处理逻辑1014捕获一个值。 误差检测电路1026和误差校正电路1028检测并校正延迟值中的随机误差，并将错误检测的延迟值提供给比较器1024。 比较器1024比较错误检查的延迟值和非延迟值，如果它们不相等，则表示非延迟值被捕获得太早，应该被错误检查的延迟值替换。 非延迟值在其捕获之后立即传递到后续处理阶段，因此使用错误恢复机制来抑制后续处理阶段发生的错误处理，例如选通时钟并允许正确的信号值传播 在重新启动时钟之前通过后续的处理逻辑。 调整集成电路的工作参数，例如时钟频率，工作电压，主体偏置电压，温度等，以便以提高整体性能的方式保持有限的非零错误率。
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