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    • 4. 发明申请
    • DMA transfer system using virtual channels
    • DMA传输系统使用虚拟通道
    • US20070073924A1
    • 2007-03-29
    • US11360609
    • 2006-02-24
    • Kenichiro KurokiKenji Sato
    • Kenichiro KurokiKenji Sato
    • G06F13/28
    • G06F13/34Y02D10/14
    • A DMA transfer system includes a DMA controller having at least one channel coupled to a system bus, the DMA controller configured to perform a DMA transfer via the system bus according to a DMA transfer setting of the at least one channel, and a DMAC control unit coupled to the DMA controller, wherein the DMAC control unit includes a plurality of virtual channels configured to have respective DMA transfer settings made thereto, a virtual channel arbiter configured to select one of the plurality of virtual channels, and a DMA setting circuit configured to read a DMA transfer setting of the selected virtual channel to write the read DMA transfer setting to the at least one channel of the DMA controller.
    • DMA传输系统包括具有耦合到系统总线的至少一个通道的DMA控制器,DMA控制器被配置为根据至少一个通道的DMA传输设置经由系统总线执行DMA传输,以及DMAC控制单元 耦合到所述DMA控制器,其中所述DMAC控制单元包括被配置为具有相应的DMA传输设置的多个虚拟通道,被配置为选择所述多个虚拟通道中的一个的虚拟通道仲裁器,以及被配置为读取的DMA设置电路 所选择的虚拟通道的DMA传输设置将读DMA传输设置写入DMA控制器的至少一个通道。
    • 9. 发明授权
    • DMA transfer system using virtual channels
    • DMA传输系统使用虚拟通道
    • US07970959B2
    • 2011-06-28
    • US11360609
    • 2006-02-24
    • Kenichiro KurokiKenji Sato
    • Kenichiro KurokiKenji Sato
    • G06F3/00G06F13/00
    • G06F13/34Y02D10/14
    • A DMA transfer system includes a DMA controller having at least one channel coupled to a system bus, the DMA controller configured to perform a DMA transfer via the system bus according to a DMA transfer setting of the at least one channel, and a DMAC control unit coupled to the DMA controller, wherein the DMAC control unit includes a plurality of virtual channels configured to have respective DMA transfer settings made thereto, a virtual channel arbiter configured to select one of the plurality of virtual channels, and a DMA setting circuit configured to read a DMA transfer setting of the selected virtual channel to write the read DMA transfer setting to the at least one channel of the DMA controller.
    • DMA传输系统包括具有耦合到系统总线的至少一个通道的DMA控制器,DMA控制器被配置为根据至少一个通道的DMA传输设置经由系统总线执行DMA传输,以及DMAC控制单元 耦合到所述DMA控制器,其中所述DMAC控制单元包括被配置为具有相应的DMA传输设置的多个虚拟通道,被配置为选择所述多个虚拟通道中的一个的虚拟通道仲裁器,以及被配置为读取的DMA设置电路 所选择的虚拟通道的DMA传输设置将读DMA传输设置写入DMA控制器的至少一个通道。