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    BUS COMMUNICATIONS WITH MULTI-DEVICE MESSAGING
    5.
    发明公开
    BUS COMMUNICATIONS WITH MULTI-DEVICE MESSAGING 审中-公开
    BUS-KOMMUNIKATION MIT MULTI VORRICHTUNGS-NACHRICHTENÜBERMITTLUNG

    公开(公告)号：EP3086236A1

    公开(公告)日：2016-10-26

    申请号：EP16163663.4

    申请日：2016-04-04

    申请人： BlackBerry Limited

    发明人： POULSEN, Jens, Kristian

    IPC分类号： G06F13/42

    CPC分类号： G06F13/362 ,  G06F13/4282 ,  G06F13/4291 ,  G06F2213/0016

    摘要： Methods and systems are described for reading from or writing to a plurality of slave devices connected to a communications bus having a common data line. The slave devices are mapped to a virtual device address and the communication is initiated by the master by signaling a start condition and the virtual device address. Each of the slave devices mapped to the virtual device address identifies a register in that slave device associated with the virtual device address and, in sequence, performs a read or write operation on the bus with regard to its identified register in a respective predetermined time slot within the communication or to a corresponding virtual register address assigned to the slave device previously.

    摘要翻译： 描述了用于从连接到具有公共数据线的通信总线的多个从设备读取或写入方法和系统。 从设备被映射到虚拟设备地址，并且主设备通过发信号通知起始条件和虚拟设备地址来发起通信。 映射到虚拟设备地址的每个从设备标识与该虚拟设备地址相关联的该从设备中的寄存器，并且依次在相应的预定时隙中针对其所识别的寄存器在总线上执行读或写操作 在通信中或之前分配给从设备的相应虚拟寄存器地址。