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    • 2. 发明授权
    • Data processing device and data processing system
    • 数据处理装置和数据处理系统
    • US08335883B2
    • 2012-12-18
    • US12854284
    • 2010-08-11
    • Shohei TateyamaTakao YamauchiEisaku TomidaKunihiko NishiyamaYasuyuki Suzuki
    • Shohei TateyamaTakao YamauchiEisaku TomidaKunihiko NishiyamaYasuyuki Suzuki
    • G06F13/36G06F13/28
    • G06F13/385
    • To provide a data processing device in which a plurality of CPUs can individually and independently communicate with different functions of a USB device using a single communication path. The data processing device is configured so that a USB host module to be coupled to a plurality of central processing units has a plurality of pipes to communicate with an arbitrary end point of a USB device coupled from the outside of the data processing device, the data processing device also includes an access control register to specify which central processing unit should have a right to control the pipe and specify to which extent a range of the content of setting of a function for the pipe should be allowed, and a USB host interface is controlled in accordance with the content of setting of the access control register.
    • 为了提供一种数据处理装置,其中多个CPU可以使用单个通信路径独立且独立地与USB设备的不同功能通信。 数据处理装置被配置为使得要耦合到多个中央处理单元的USB主机模块具有多个管道以与从数据处理设备的外部耦合的USB设备的任意端点进行通信,数据 处理装置还包括访问控制寄存器,以指定哪个中央处理单元应当具有控制管道的权利,并且指定应该允许管道功能的设置内容的范围在哪个范围内,并且USB主机接口是 根据访问控制寄存器的设置内容进行控制。