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1. 发明授权

US06965249B2 Programmable logic device with redundant circuitry 失效
标题翻译：具有冗余电路的可编程逻辑器件
公开(公告)号：US06965249B2
公开(公告)日：2005-11-15
申请号：US10159581
申请日：2002-05-30
申请人： Christopher Lane , Ketan Zaveri , Hyun Yi , Giles Powell , Paul Leventis , David Jefferson , David Lewis , Triet Nguyen , Vikram Santurkar , Michael Chan , Andy Lee , Brian Johnson , David Cashman
发明人： Christopher Lane , Ketan Zaveri , Hyun Yi , Giles Powell , Paul Leventis , David Jefferson , David Lewis , Triet Nguyen , Vikram Santurkar , Michael Chan , Andy Lee , Brian Johnson , David Cashman
IPC分类号： H01L21/82 , H03K19/177
CPC分类号： H03K19/17764 , H03K19/17736 , H03K19/17744
摘要： A programmable logic device and associated method is provided with repairable regions. In one aspect, general routing interconnect lines are segmented within repairable regions. In another aspect, IO bus lines and associated circuitry are provided that accommodate redundancy in a staggered segmented architecture. In another aspect, a dedicated routing architecture between particular logic regions accommodates shifting to define and utilize repairable regions. Principles of other aspects are illustrated and described in the context of several exemplary embodiments of aspects of the invention.
摘要翻译：可编程逻辑器件和相关方法提供有可修复区域。在一个方面，一般布线互连线在可修复区域内被分段。在另一方面，提供IO总线线路和相关电路，其适应交错分段结构中的冗余。在另一方面，特定逻辑区域之间的专用路由架构适应移位以限定和利用可修复区域。在本发明的方面的几个示例性实施例的上下文中示出和描述了其它方面的原理。

2. 发明申请

US20070252617A1 VERSATILE LOGIC ELEMENT AND LOGIC ARRAY BLOCK 有权
公开(公告)号：US20070252617A1
公开(公告)日：2007-11-01
申请号：US11743625
申请日：2007-05-02
申请人： David Lewis , Paul Leventis , Andy Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher Lane , ALexander Marquardt , Vikram Santurkar , Vaughn Betz
发明人： David Lewis , Paul Leventis , Andy Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher Lane , ALexander Marquardt , Vikram Santurkar , Vaughn Betz
IPC分类号： H03K19/177
CPC分类号： H03K19/17764 , H03K19/1737 , H03K19/17728 , H03K19/17736
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

3. 发明申请

US20050127944A1 Versatile logic element and logic array block 有权
公开(公告)号：US20050127944A1
公开(公告)日：2005-06-16
申请号：US11050111
申请日：2005-02-02
申请人： David Lewis , Paul Leventis , Andy Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
发明人： David Lewis , Paul Leventis , Andy Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
IPC分类号： H03K19/173 , H03K19/177
CPC分类号： H03K19/17764 , H03K19/1737 , H03K19/17728 , H03K19/17736
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

4. 发明授权

US07432734B2 Versatile logic element and logic array block 有权
公开(公告)号：US07432734B2
公开(公告)日：2008-10-07
申请号：US11743625
申请日：2007-05-02
申请人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
发明人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
IPC分类号： H01L25/00 , H03K19/177
CPC分类号： H03K19/17764 , H03K19/1737 , H03K19/17728 , H03K19/17736
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

5. 发明授权

US06937064B1 Versatile logic element and logic array block 有权
公开(公告)号：US06937064B1
公开(公告)日：2005-08-30
申请号：US10280723
申请日：2002-10-24
申请人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
发明人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
IPC分类号： H03K19/173 , H03K19/177
CPC分类号： H03K19/17764 , H03K19/1737 , H03K19/17728 , H03K19/17736
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

6. 发明授权

US07671626B1 Versatile logic element and logic array block 失效
公开(公告)号：US07671626B1
公开(公告)日：2010-03-02
申请号：US12202053
申请日：2008-08-29
申请人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
发明人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Betz
IPC分类号： H01L25/00 , H03K19/177
CPC分类号： H03K19/177
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

7. 发明授权

US07218133B2 Versatile logic element and logic array block 有权
公开(公告)号：US07218133B2
公开(公告)日：2007-05-15
申请号：US11050111
申请日：2005-02-02
申请人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Timothy Betz
发明人： David M. Lewis , Paul Leventis , Andy L. Lee , Henry Kim , Bruce Pedersen , Chris Wysocki , Christopher F. Lane , Alexander Marquardt , Vikram Santurkar , Vaughn Timothy Betz
IPC分类号： H03K19/003
CPC分类号： H03K19/17764 , H03K19/1737 , H03K19/17728 , H03K19/17736
摘要： An embodiment of this invention pertains to a versatile and flexible logic element and logic array block (“LAB”). Each logic element includes a programmable combinational logic function block such as a lookup table (“LUT”) and a flip-flop. Within the logic element, multiplexers are provided to allow the flip-flop and the LUT to be programmably connected such that either the output of the LUT may be connected to the input of the flip-flop or the output of the flip-flop may be connected to the input of the LUT. An additional multiplexer allows the output of the flip-flop in one logic element to be connected to the input of a flip-flop in a different logic element within the same LAB. Output multiplexers selects between the output of the LUT and the output of the flip-flop to generate signals that drive routing lines within the LAB and to routing lines external to the LAB. These output multiplexers are constructed such that the combinational output (output from the LUT) is faster than the output from the flip-flop. A collection of routing lines and multiplexers within the LAB are used to provide inputs to the LUTs. Each of the input multiplexers for each logic element is connected to a subset of the routing lines within the LAB using a specific pattern of connectivity of multiplexers to associated wires that maximizes the efficiency of use of the routing wires. Control signals for the set of logic elements within the LAB are generated using a secondary signal generation unit that minimizes contention for shared signals. One of the control signals is an “add-or-subtract control signal” that allows all of the LEs in a LAB to perform either addition or subtraction under the control of a logic signal. In a PLD supporting redundancy, the carry chain for the LABs is arranged in the same direction that redundancy shifts to remap defective LABs and a multiplexer on the carry input of a LAB is used to select the appropriate carry output from another LAB depending on whether redundancy is engaged.

8. 发明授权

US07161381B1 Multiple size memories in a programmable logic device 有权
标题翻译：可编程逻辑器件中的多个大小的存储器
公开(公告)号：US07161381B1
公开(公告)日：2007-01-09
申请号：US10787818
申请日：2004-02-25
申请人： Srinivas Reddy , David Jefferson , Christopher F. Lane , Vikram Santurkar , Richard Cliff
发明人： Srinivas Reddy , David Jefferson , Christopher F. Lane , Vikram Santurkar , Richard Cliff
IPC分类号： H03K19/177
CPC分类号： H03K19/1776
摘要： A programmable logic device (PLD) includes a first memory block and at least a second memory block, where the two memory blocks have different memory sizes.
摘要翻译：可编程逻辑器件（PLD）包括第一存储器块和至少第二存储器块，其中两个存储器块具有不同的存储器大小。

9. 发明授权

US07884638B1 Techniques for providing calibrated on-chip termination impedance 有权
标题翻译：提供校准的片上终端阻抗的技术
公开(公告)号：US07884638B1
公开(公告)日：2011-02-08
申请号：US12236201
申请日：2008-09-23
申请人： Vikram Santurkar , Hyun Yi
发明人： Vikram Santurkar , Hyun Yi
IPC分类号： H03K17/16
CPC分类号： H03K17/005 , H03H11/28 , H03K17/16 , H03K17/165 , H03K17/6872 , H04L25/0278 , H04L25/0298
摘要： An on-chip termination (OCT) calibration circuit includes one or more transistors coupled between a first terminal and a supply voltage, one or more transistors coupled between the first terminal and a low voltage, and a feedback loop circuit. The feedback loop circuit compares a signal from the first terminal to first and second reference signals to generate a first calibration code that controls conductive states of the one or more transistors coupled between the first terminal and the supply voltage and a second calibration code that controls conductive states of the one or more transistors coupled between the first terminal and the low voltage. The OCT calibration circuit controls an on-chip termination impedance at a pin using the first calibration code and the second calibration code.
摘要翻译：片上终端（OCT）校准电路包括耦合在第一端子和电源电压之间的一个或多个晶体管，耦合在第一端子和低电压之间的一个或多个晶体管，以及反馈环路电路。反馈回路电路将来自第一端子的信号与第一和第二参考信号进行比较，以产生控制耦合在第一端子和电源电压之间的一个或多个晶体管的导通状态的第一校准代码，以及控制导电耦合在第一端子和低电压之间的一个或多个晶体管的状态。 OCT校准电路使用第一个校准代码和第二个校准代码控制引脚上的片上终端阻抗。

10. 发明申请

US20100225349A1 Techniques for Providing Calibrated On-Chip Termination Impedance 有权
标题翻译：提供校准片上终端阻抗的技术
公开(公告)号：US20100225349A1
公开(公告)日：2010-09-09
申请号：US12780917
申请日：2010-05-16
申请人： Vikram Santurkar , Hyun Yi
发明人： Vikram Santurkar , Hyun Yi
IPC分类号： H03K17/16
CPC分类号： H03K19/0005 , H04L25/0278 , H04L25/0298
摘要： Techniques are provided for calibrating on-chip termination impedances on integrated circuits. An on-chip termination (OCT) calibration circuit generates calibration codes that selectively control the conductive states of a set of transistors coupled in parallel. The OCT calibration circuit selects a calibration code that causes the impedance of the transistors to be near a matching impedance. The selected calibration code controls an on-chip termination impedance at a pin. According to some embodiments, the OCT calibration circuit compares a signal from the transistors to two or more reference signals to improve the tolerance range of the calibrated on-chip termination impedance. According to other embodiments, the OCT calibration circuit selects a calibration code based on a signal from the transistors after an extra transistor is turned on by a control signal. The control signal is not used to control the on-chip termination impedance.
摘要翻译：提供了用于校准集成电路上的片上终端阻抗的技术。片上终止（OCT）校准电路产生校准代码，其选择性地控制并联耦合的一组晶体管的导通状态。 OCT校准电路选择使晶体管的阻抗接近匹配阻抗的校准码。所选的校准代码控制引脚上的片上终端阻抗。根据一些实施例，OCT校准电路将来自晶体管的信号与两个或更多个参考信号进行比较，以改进校准的片上终端阻抗的容差范围。根据其他实施例，OCT校准电路在通过控制信号接通附加晶体管之后，基于来自晶体管的信号来选择校准码。控制信号不用于控制片上终端阻抗。

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