Distributed access serial port test arrangement for integrated circuits
    4.
    发明授权
    Distributed access serial port test arrangement for integrated circuits 失效
    用于集成电路的分布式访问串行端口测试布置

    公开(公告)号:US4862072A

    公开(公告)日:1989-08-29

    申请号:US241742

    申请日:1988-09-08

    IPC分类号: G01R31/3185 G06F11/267

    CPC分类号: G06F11/221 G01R31/318541

    摘要: A dedicated set of four input pads or pins of an LSI chip provides access by a serial data line to macrocells or other partioned logic of the LSI for individual test. A macrocell is connected to the remainder of the logic by a pair of multiplexer/test register combinations, one at the input, and one at the output of the macrocell. In a normal operation mode, the multiplexers connect each macrocell to the next, for normal signal flow. Under control of test signals, the test registers may be selectively loaded with data from the serial data bus, and the multiplexers may be switched to apply test data from the test register to a macrocell. The output multiplexer of the macrocell routes the resulting processed test data to the output test register, so it may be read out in serial form while normal operation resumes.

    摘要翻译: 专用的一组LSI芯片的四个输入焊盘或引脚可通过串行数据线访问用于单独测试的LSI的宏单元或其他分段逻辑。 宏单元通过一对多路复用器/测试寄存器组合(一个在输入端)和一个在宏单元的输出端连接到逻辑的其余部分。 在正常操作模式中,多路复用器将每个宏单元连接到下一个,用于正常的信号流。 在测试信号的控制下,测试寄存器可以选择性地加载来自串行数据总线的数据,并且可以切换多路复用器以将测试数据从测试寄存器应用到宏单元。 宏单元的输出多路复用器将所得到的处理的测试数据路由到输出测试寄存器,因此可以在正常操作恢复时以串行形式读出。

    Synthesis of 2-[1-(2,5-dimethylphenyl)ethylsulfonyl]pyridine-1-oxide
herbicide and intermediates therefor
    5.
    发明授权
    Synthesis of 2-[1-(2,5-dimethylphenyl)ethylsulfonyl]pyridine-1-oxide herbicide and intermediates therefor 失效
    2- [1-(2,5-二甲基苯基)乙基磺酰基]吡啶-1-氧化物除草剂及其中间体的合成

    公开(公告)号:US4490532A

    公开(公告)日:1984-12-25

    申请号:US172603

    申请日:1980-07-28

    申请人: John W. Harris

    发明人: John W. Harris

    摘要: Hydrogen chloride is passed into p-xylene and acetaldehyde to form bis-1-chloroethyl ether; the latter is converted to 2-(1-chloroethyl)-1,4-dimethylbenzene by the action of sulfuric acid and hydrogen chloride. Alkali metal hydrogen sulfide in aqueous methanol or ethanol converts the 2-(1-chloroethyl)-1,4-dimethylbenzene to alpha,2,5-trimethylbenzenemethanethiol; the sodium salt of the latter reacted with 2-chloropyridine-1-oxide yields 2-[1-(2,5-dimethylphenyl)ethylthio]pyridine-1-oxide which is then oxidized with hydrogen peroxide and alkali metal tungstate or tungstic acid to form 2-[1-(2,5-dimethylphenyl)ethylsulfonyl]pyridine-1-oxide.

    摘要翻译: 将氯化氢通入对二甲苯和乙醛中以形成双-1-氯乙基醚; 后者通过硫酸和氯化氢的作用转化为2-(1-氯乙基)-1,4-二甲基苯。 碱金属硫化氢在甲醇或乙醇水溶液中将2-(1-氯乙基)-1,4-二甲基苯转化为α,2,5-三甲基苯甲硫醇; 后者的钠盐与2-氯吡啶-1-氧化物反应得到2- [1-(2,5-二甲基苯基)乙硫基]吡啶-1-氧化物,然后用过氧化氢和碱金属钨酸盐或钨酸氧化成 形成2- [1-(2,5-二甲基苯基)乙基磺酰基]吡啶-1-氧化物。