Input/output control method and data processor
    42.
    发明授权
    Input/output control method and data processor 失效
    输入/输出控制方法和数据处理器

    公开(公告)号:US5678062A

    公开(公告)日:1997-10-14

    申请号:US199889

    申请日:1994-02-22

    IPC分类号: G06F13/12 G06F13/28 G06F13/00

    CPC分类号: G06F13/28

    摘要: A system for controlling the DMA transfer for a plurality of IO devices has an IO controller for each group of the IO devices. Data is retrieved from memory and stored in the IO controller where it is analyzed. The retrieved data has a structure that permits a group of DMA start request quads to be linked together for parallel or pipeline processing of the DMA transfer requests. Each start request quad has a pointer for additionally retrieving corresponding command data. The command data is set forth in a number of blocks, each linked to the next one by a pointer. When a DMA processing has been completed, the termination or completion status is entered into a specific entry in a completion list for the corresponding IO device. Thus, a determination can be made as to whether specific IO devices have completed a requested DMA processing. Expansion of the system is accomplished by using combinations of main and sub controllers, where one main controller provides the aforementioned data structures for many sub controllers in order to enable the DMA processing to be performed for IO devices connected to the sub controllers with less frequent access of system main memory and the system bus.

    摘要翻译: 用于控制多个IO设备的DMA传输的系统具有用于每组IO设备的IO控制器。 数据从存储器检索并存储在IO控制器中进行分析。 检索的数据具有允许一组DMA启动请求四元组链接在一起以用于DMA传送请求的并行或流水线处理的结构。 每个启动请求四元组都有一个指针,用于附加地检索相应的命令数据。 命令数据在多个块中设置,每个块通过指针链接到下一个块。 当DMA处理完成时,终止或完成状态将被输入到对应的IO设备的完成列表中的特定条目中。 因此,可以确定特定的IO设备是否已经完成了所请求的DMA处理。 通过使用主控制器和副控制器的组合来实现系统的扩展,其中一个主控制器为许多子控制器提供上述数据结构,以便能够对连接到具有较少频率访问的子控制器的IO设备执行DMA处理 的系统主存和系统总线。

    Control and supervisory system for power distribution equipment
    43.
    发明授权
    Control and supervisory system for power distribution equipment 失效
    配电设备的控制和监控系统

    公开(公告)号:US5225994A

    公开(公告)日:1993-07-06

    申请号:US489255

    申请日:1990-03-06

    IPC分类号: G05B23/02 H02J13/00

    摘要: A novel and improved control and supervisory system for power distribution equipment including a plurality of terminal control and/or supervisory devices each capable of controlling and/or supervising a plurality of power distribution devices in an extremely simple, high-speed and efficient manner without requiring any central control and/or supervisory unit. To such control and/or supervisory operation, no vast and full knowledge of permitted and inhibited operations of varying kinds of power distribution devices connected therewith, as well as of the control and supervisory procedures therefor, is required. To these ends, each of the terminal control devices comprises a control and/or supervisory instruction section operable to output a control or supervisory command for controlling or supervising a plurality of power distribution devices, and a control and/or supervisory section operable to receive the control or supervisory command from the control and/or supervisory instruction section for generating a control or supervisory signal suited to control or supervise a corresponding one of the power distribution devices, and outputting it to the corresponding power distribution device. In one embodiment, the control or supervisory command is conceptually common to the power distribution devices. In another embodiment, the control and supervisory command is intrinsic to a corresponding one of the power distribution devices. Thus, there is no need for a sender terminal device to prepare specific control and supervisory programs suited to the respective power distribution devices.

    摘要翻译: 一种用于配电设备的新型改进的控制和监控系统,包括多个终端控制和/或监控装置,每个能够以非常简单,高速和有效的方式控制和/或监督多个配电装置,而不需要 任何中央控制和/或监督单元。 对于这种控制和/或监督操作,不需要对与其相关的各种配电装置的允许和禁止的操作以及其控制和监督程序的广泛和充分的了解。 为此,每个终端控制装置包括可操作以输出用于控制或监督多个配电装置的控制或监视命令的控制和/或监督指令部分,以及可操作以接收所述控制和/ 来自控制和/或监督指令部分的控制或监控命令,用于产生适于控制或监督对应的一个配电装置的控制或监控信号,并将其输出到相应的配电装置。 在一个实施例中,控制或监督命令在概念上对于配电装置是共同的。 在另一个实施例中,控制和监视命令对于相应的一个配电装置是固有的。 因此,不需要发送者终端设备来准备适合于各个配电设备的特定控制和监控程序。

    Level conversion circuit for converting ECL-level signals into mos-level
signals and address signal decoding system having the level conversion
circuit
    44.
    发明授权
    Level conversion circuit for converting ECL-level signals into mos-level signals and address signal decoding system having the level conversion circuit 失效
    将电平信号转换为MOS电平信号的电平转换电路和具有电平转换电路的地址信号解码系统

    公开(公告)号:US5223752A

    公开(公告)日:1993-06-29

    申请号:US854533

    申请日:1992-03-19

    申请人: Yasuhiro Ishii

    发明人: Yasuhiro Ishii

    摘要: A level conversion circuit includes first to nth circuits, each having an input terminal and first to nth output terminals where n is an integer, and first to nth signal lines coupled to the first to nth circuits. Each of the first to nth circuits comprises a part for outputting a first voltage to the first output terminal and outputting a second voltage to the second to nth output terminals other than the first output terminal when an input signal applied to the input terminal is at a first level and for maintaining the first to nth output terminals in high-impedance states when the input signal is at a second level different from the first level. The first output terminal of each of the first to nth circuits is connected to one of the first to nth signal lines so that first output terminals of the first to nth circuits are connected to mutually different signal lines. The second to nth output terminals of each of the first to nth circuits are connected to (n-1) signal lines other than the one of the first to nth signal lines to which the first output terminal is connected.