Method and device for information interaction with SD card host controller, and SD card model

The embodiment of the invention provides a method and device for information interaction with an SD card host controller, and an SD card model. The method is applied to the SD card model; and the SD card model has a memory function and an input/output IO function. The method includes: receiving a control command sent by the SD card host controller, wherein the control command includes a memory control command or an IO control command; generating a message package corresponding to the control command according to the control command; and sending the message package to the SD card host controller. Information interaction between the SD card model having the memory function and the input/output IO function and the SD card host controller can be achieved. 本发明实施例提供种与SD卡主机控制器信息交互的方法、装置及SD卡模型，所述方法应用于SD卡模型，所述SD卡模型具有存储功能和输入输出IO功能，所述方法包括：接收所述SD卡主机控制器发送的控制命令，所述控制命令包括存储控制命令或IO控制命令；根据所述控制命令生成与所述控制命令对应的消息包；将所述消息包发送给所述SD卡主机控制器。从而实现了具有存储功能与IO功能的SD卡模型与SD卡主机控制器之间的信息交互。