INPUT/OUTPUT SYSTEM AND METHOD OF COMMUNICATION FOR PERIPHERAL DEVICES IN DATA PROCESSING SYSTEM
    1.
    发明申请
    INPUT/OUTPUT SYSTEM AND METHOD OF COMMUNICATION FOR PERIPHERAL DEVICES IN DATA PROCESSING SYSTEM 审中-公开
    输入/输出系统和数据处理系统中的外围设备通信方法

    公开(公告)号:WO1982000373A1

    公开(公告)日:1982-02-04

    申请号:PCT/US1981000902

    申请日:1981-07-02

    Applicant: NCR CORP

    CPC classification number: G06F13/385 G06F13/22

    Abstract: A data processing system including processing elements (22) and a central memory (10) has an input/output system for handling high data transmission rates comprising an I/O processor (23) providing serial lines (31) to a plurality of peripheral subsystems (30) each of which comprises a peripheral adapter (40) and a plurality of peripheral devices (41), the peripheral adapter including a first means providing serial/parallel data conversion from the serial line (31), a second means providing control functions and information transfer to the peripheral devices, and third means for responding to the I/O processor in accordance with a message protocol. The message protocol involves interrogating an input signal indicating the end of a message from I/O processor (23), determining the message type, transmitting a response message and causing the peripheral adapter to enter an operating state which may involve further exchange of messages with the I/O processor.

    Abstract translation: 包括处理元件(22)和中央存储器(10)的数据处理系统具有用于处理高数据传输速率的输入/输出系统,其包括向多个外围子系统提供串行线(31)的I / O处理器(23) (30),每个包括外围适配器(40)和多个外围设备(41),所述外围适配器包括从串行线路(31)提供串行/并行数据转换的第一装置,提供控制功能的第二装置 以及信息传送到外围设备,以及第三装置,用于根据消息协议响应I / O处理器。 消息协议包括询问指示来自I / O处理器(23)的消息结束的输入信号,确定消息类型,发送响应消息并使得外围适配器进入操作状态,这可能涉及进一步交换消息 I / O处理器。

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