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    • 2. 发明授权
    • Integrated circuit mechanism for coupling multiple programmable logic
arrays to a common bus
    • 用于将多个可编程逻辑阵列耦合到公共总线的集成电路机制
    • US4583193A
    • 1986-04-15
    • US350681
    • 1982-02-22
    • Wayne R. KraftMoises CasesWilliam L. Stahl, Jr.Nandor G. ThomaVirgil D. Wyatt
    • Wayne R. KraftMoises CasesWilliam L. Stahl, Jr.Nandor G. ThomaVirgil D. Wyatt
    • H01L21/822G06F9/22G06F9/26G06F9/28H01L21/82H01L27/04H03K19/173H03K19/177G06F13/38
    • G06F9/28G06F9/223G06F9/267
    • An integrated circuit mechanism is provided for coupling the separate sets of output lines from a plurality of programmable logic arrays to the same set of bus lines of plural-line signal transfer bus. This coupling mechanism includes precharge circuitry for precharging each of the bus lines during a first time interval. This coupling mechanism also includes a separate strobe signal line for each programmable logic array and circuitry for activating one of the strobe signal lines during a second time interval for selecting a particular programmable logic array. This coupling mechanism further includes a separate output buffer for each programmable logic array. Each such output buffer includes a plurality of buffer stages for individually coupling the different ones of the programmable logic array output lines to their respective bus lines. The buffer stages for each programmable logic array are responsive to the strobe signal for its programmable logic array for discharging during the second time interval those bus lines for which its programmable logic array output lines are at a particular binary value.
    • 提供了一种集成电路机制,用于将分离的输出线组从多个可编程逻辑阵列耦合到多行信号传输总线的同一组总线。 该耦合机构包括用于在第一时间间隔期间预充电每个总线的预充电电路。 该耦合机构还包括用于每个可编程逻辑阵列的单独选通信号线和用于在用于选择特定可编程逻辑阵列的第二时间间隔期间激活选通信号线之一的电路。 该耦合机构还包括用于每个可编程逻辑阵列的单独的输出缓冲器。 每个这样的输出缓冲器包括用于将不同的可编程逻辑阵列输出线分别耦合到它们各自的总线的多个缓冲级。 每个可编程逻辑阵列的缓冲级响应于其可编程逻辑阵列的选通信号,用于在第二时间间隔期间对其可编程逻辑阵列输出线处于特定二进制值的总线进行放电。
    • 3. 发明授权
    • Logic performing cell for use in array structures
    • 用于阵列结构的逻辑执行单元
    • US4500800A
    • 1985-02-19
    • US413043
    • 1982-08-30
    • Moises CasesWayne R. KraftWilliam L. Stahl, Jr.Nandor G. Thoma
    • Moises CasesWayne R. KraftWilliam L. Stahl, Jr.Nandor G. Thoma
    • H03K19/096H03K19/177H03K19/017H03K17/16
    • H03K19/1772H03K19/096
    • As a specific improvement to a previously known PLA (Programmed Logic Array) structure, formed by FET devices in serially chained charge transfer circuits, the presently disclosed "modified" PLA structure comprises a combination of: (a) level shifting circuitry, integrated into bit partitioning stages of the known structure, for reducing voltage swings in the outputs of those stages and thereby reducing spurious couplings to the following AND array stage as well as decreasing operational delays of the latter stage; (b) discrete capacitance, added at the output end of the OR array stage of the known structure, for sustaining and reinforcing charge conditions accumulated in that stage prior to readout (validation clocking) of that stage; and (c) a source of time related clocking functions coupled to stages of the modified structure, with the timing relationships selected so as to reduce operational delays of the entire structure while improving its integrity of operation.
    • 作为对先前已知的PLA(编程逻辑阵列)结构的具体改进,由串联链式电荷转移电路中的FET器件形成,目前公开的“修改”PLA结构包括以下组合:(a)电平移位电路,集成到位 已知结构的分级级,用于减小这些级的输出中的电压摆幅,从而减少到后续阵列级的寄生耦合,并减少后级的运行延迟; (b)在已知结构的OR阵列阶段的输出端处添加的离散电容,用于在该级的读出(验证时钟)之前维持和加强在该级中累积的充电条件; 以及(c)与所述经修改的结构的阶段耦合的时间相关时钟功能源,选择所述定时关系以便减少整个结构的运行延迟,同时提高其操作的完整性。
    • 7. 发明授权
    • Microword generation mechanism utilizing a separate branch decision
programmable logic array
    • 微剑生成机制利用单独的分支决策可编程逻辑阵列
    • US4947369A
    • 1990-08-07
    • US416881
    • 1989-10-04
    • Nandor G. ThomaVictor S. MooreWayne R. Kraft
    • Nandor G. ThomaVictor S. MooreWayne R. Kraft
    • G06F9/26G06F9/42
    • G06F9/264
    • A microword generation mechanism is provided for producing the sequences of microwords used to control the execution of processor instructions in a microprogrammed digital data processor. This microword generation mechanism includes programmable logic array means responsive to the processor instructions for producing the appropriate microword sequences. The microword generation mechanism also includes condition indicator circuitry for supplying indicator signals indicating whether the results of arithmetic and logic operations in the processor meet certain types of conditions. The microword generation mechanism further includes a condition testing programmable logic array responsive to the condition field of a conditional branch type processor instruction for testing the appropriate indicator signal or signals and causing a branch type microword sequence to be produced if the specified condition is met.
    • 提供了一种微词生成机制,用于产生用于控制微程序数字数据处理器中的处理器指令的执行的微词序列。 该微词生成机制包括响应于处理器指令以产生适当的微词序列的可编程逻辑阵列装置。 微字生成机构还包括用于提供指示信号的条件指示器电路,其指示处理器中的算术和逻辑运算的结果是否符合某些类型的条件。 微字生成机构还包括响应于条件分支型处理器指令的条件字段的条件测试可编程逻辑阵列,用于测试适当的指示符信号或者如果满足指定条件则产生分支型微字序列。
    • 8. 发明授权
    • Clocking mechanism for multiple overlapped dynamic programmable logic
arrays used in a digital control unit
    • 用于数字控制单元中的多重重叠动态可编程逻辑阵列的时钟机制
    • US4575794A
    • 1986-03-11
    • US350683
    • 1982-02-22
    • Gerard A. VeneskiNandor G. ThomaMoises Cases
    • Gerard A. VeneskiNandor G. ThomaMoises Cases
    • H03K19/177G06F9/22H03K5/15G06F9/28G06F9/26
    • H03K5/15013G06F9/223
    • A clocking mechanism is provided for multiple overlapped dynamic programmable logic arrays which are used in a digital control unit wherein a sequence of control words are used to produce successive groups of control point signals. Such a control unit includes a plurality of dynamic programmable logic arrays for individually producing different ones of the control words. Each such control word includes a strobe field which is coded to identify a programmable logic array other than the one which produced it. The control unit also includes control circuitry responsive to the control words for producing the control point signals for successive machine control cycles. The control circuitry includes circuitry responsive to the strobe field in each control word for producing a strobe signal for selecting the next programmable logic array to supply a control word to the control circuitry. This control unit further includes clocking circuitry resposive to the strobe signals produced by the control circuitry for producing clocking signals for the dynamic programmable logic arrays. Such clocking circuitry includes only combinatorial logic circuitry for producing the clocking signals.
    • 为数字控制单元中使用的多个重叠动态可编程逻辑阵列提供时钟机制,其中使用一系列控制字来产生连续的控制点信号组。 这种控制单元包括用于单独产生不同控制字的多个动态可编程逻辑阵列。 每个这样的控制字包括选通字段,其被编码以识别除了产生该可编程逻辑阵列之外的可编程逻辑阵列。 控制单元还包括响应于控制字的控制电路,用于产生用于连续机器控制周期的控制点信号。 控制电路包括响应于每个控制字中的选通字段的电路,用于产生用于选择下一个可编程逻辑阵列以向控制电路提供控制字的选通信号。 该控制单元还包括对由控制电路产生的用于产生用于动态可编程逻辑阵列的时钟信号产生的选通信号的时钟电路。 这种时钟电路仅包括用于产生时钟信号的组合逻辑电路。
    • 9. 发明授权
    • Large scale integration data processor signal transfer mechanism
    • 大规模集成数据处理器信号传递机制
    • US4567561A
    • 1986-01-28
    • US334185
    • 1981-12-24
    • Virgil D. WyattWayne R. KraftNandor G. Thoma
    • Virgil D. WyattWayne R. KraftNandor G. Thoma
    • G06F7/00G06F9/30G06F13/40G06F15/78G06F9/00
    • G06F13/4077G06F15/7864Y02B60/1225Y02B60/1228Y02B60/1235
    • A digital data signal transfer mechanism is provided for use in large scale integration digital data processor circuitry formed on an integrated circuit chip. The signal transfer mechanism includes a plural-bit data bus formed on the integrated circuit chip for transferring plural-bit binary data signals between different locations on the chip. The signal transfer mechanism also includes plural-bit signal source circuitry and plural-bit signal destination circuitry formed on the integrated circuit chip and coupled to the plural-bit data bus for respectively supplying plural-bit data signals to and receiving plural-bit data signals from the bus. The signal transfer mechanism further includes processor control circuitry coupled to the signal source and signal destination circuitry for enabling the signal source circuitry to put a plural-bit data signal onto the data bus during a first processor control cycle and for enabling the signal destination circuitry to take in this plural-bit data signal from the bus during a second and different processor control cycle. The inherent capacitance of the plural-bit data bus serves to store the plural-bit data signal during the first and second and any intervening processor control cycles.
    • 提供数字数据信号传送机制,用于形成在集成电路芯片上的大规模集成数字数据处理器电路。 信号传送机构包括形成在集成电路芯片上用于在芯片上的不同位置之间传送多位二进制数据信号的多位数据总线。 信号传送机构还包括形成在集成电路芯片上并耦合到多位数据总线的多位信号源电路和多位信号目的地电路,用于分别向多位数据信号提供多位数据信号并接收多位数据信号 从公共汽车。 信号传送机构还包括耦合到信号源和信号目的地电路的处理器控制电路,用于使信号源电路在第一处理器控制周期期间将多位数据信号放入数据总线上,并使信号目的地电路能够 在第二和不同的处理器控制周期期间从总线接收该多位数据信号。 多位数据总线的固有电容用于在第一和第二和任何中间处理器控制周期期间存储多位数据信号。