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    • 2. 发明申请
    • EMULATED LEGACY BUS OPERATION OVER A BIT-SERIAL BUS
    • 模拟总线在一个BIT串行总线上运行
    • US20140136738A1
    • 2014-05-15
    • US13678132
    • 2012-11-15
    • Scott E. MatlockMing L. So
    • Scott E. MatlockMing L. So
    • G06F13/36
    • G06F13/4282G06F13/387G06F13/4027
    • Legacy bus operations, such as x86 I/O instructions having an address space separate from memory address space, are supported in a system in which I/O devices are coupled to a microcontroller connected via an SPI bus or other bit-serial bus. Each legacy bus operation is recognized and trapped by an interface controller, such as a south-bridge controller, which maps the trapped legacy bus operation into a corresponding bit-serial bus transaction, and transacts this corresponding bit-serial bus transaction on the bit-serial bus. Existing software infrastructure using x86 I/O instructions can remain intact, with I/O transactions bound for the SPI bus.
    • 在其中I / O设备耦合到通过SPI总线或其他位串行总线连接的微控制器的系统中,传统总线操作(例如具有与存储器地址空间不同的地址空间的x86 I / O指令)支持。 每个传统总线操作被诸如南桥控制器的接口控制器识别和捕获,该桥接器控制器将被捕获的传统总线操作映射到对应的位串行总线事务中,并且将该对应的比特串行总线事务处理在位 - 串行总线 使用x86 I / O指令的现有软件架构可以保持不变,I / O事务限制为SPI总线。