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    Input/output channel
    1.
    发明授权
    Input/output channel 失效
    输入/输出通道

    公开(公告)号：US3729716A

    公开(公告)日：1973-04-24

    申请号：US3729716D

    申请日：1971-02-12

    Applicant: IBM

    Inventor： ARULPRAGASAM J ,  MINSHULL J ,  MURPHY A

    IPC: G06F13/12 ,  G11C15/04 ,  G06F3/00 ,  G06F15/16

    CPC classification number: G11C15/04 ,  G06F13/122

    Abstract: A multiplex input/output (I/O) channel in which channel functions are carried out by associative stores. Three associative stores are used, a control store, an address store and a data store. The data store acts as a data buffer store and also handles most of the interchange of control signals between the channel and the I/O control units. Tag-in I/O signals are used directly as keys in table look-up on interface response tables and initiate the appropriate response from the channel. The address store assemblies the main store address and is also responsible for some of the tag-out I/O signals. Subchannels are allotted only when they are needed. There are a limited number of subchannel areas and these are marked when they are allotted to control units. An extra marker identifies the subchannel currently in use. Any control unit can be allotted to any subchannel.

    Abstract translation: 通过关联存储进行通道功能的复用输入/输出（I / O）通道。 使用三个关联商店，控制商店，地址存储和数据存储。 数据存储器充当数据缓冲存储器，并且还处理通道和I / O控制单元之间的大多数控制信号的交换。 标签输入/输出信号直接用作接口响应表的查询表中的键，并从通道启动适当的响应。 地址存储器组装主存储地址，并且还负责一些标记输出I / O信号。 仅在需要时才分配子通道。 子通道区域数量有限，当它们分配给控制单元时，这些区域被标记。 一个额外的标记标识当前正在使用的子通道。 任何控制单元都可以分配给任何子通道。

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