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    • 22. 发明申请
    • I/O CONTROLLER AND DESCRIPTOR TRANSFER METHOD
    • I / O控制器和描述符传输方法
    • US20100198998A1
    • 2010-08-05
    • US12632368
    • 2009-12-07
    • Shinya HIRAMOTOYuichiro AjimaTomohiro Inoue
    • Shinya HIRAMOTOYuichiro AjimaTomohiro Inoue
    • G06F13/28
    • G06F13/124
    • An I/O controller and method are provided. The I/O controller to which an I/O device can be connected, and instructs the I/O device to execute a process includes a descriptor transfer device that transfers a descriptor indicating contents of a process to be executed, and execution instruction unit that instructs the I/O device to execute the process, based on the descriptor transferred from the descriptor transfer device, wherein the descriptor transfer device includes a memory for storing the descriptor; descriptor reading unit that reads, according to an indication regarding a descriptor read source from a processor, an indicated descriptor from a main memory or said memory which stores the descriptor, and descriptor transfer unit that transfers the read descriptor to the execution instruction unit.
    • 提供了I / O控制器和方法。 可以连接I / O设备并指示I / O设备执行处理的I / O控制器包括传送指示要执行的处理的内容的描述符的描述符传送设备,以及执行指令单元, 指示I / O设备基于从描述符传送设备传送的描述符执行该过程,其中描述符传送设备包括用于存储描述符的存储器; 描述符读取单元,根据来自处理器的描述符读取源的指示,从存储描述符的主存储器或所述存储器中指示的描述符以及将读取的描述符传送到执行指令单元的描述符传送单元。