Card reader controlling apparatus based on secure digital protocol

A card reader controlling apparatus based on SD (Secure Digital) protocol, comprising:

• a high-speed bus interface transmitting either a high-speed bus format command or a high-speed bus format data;
• at least one SD host translating the high-speed bus format command or data into an SD format command or an SD format data, or translating an SD format data received by the SD host into a high-speed bus format data for transmitting to the high-speed bus interface;
• at least one SD card connection interface access data from a corresponding SD card based on the SD format command transmitted from the SD host, and transmitting the SD format data between the SD host and the SD card connection interface;
• at least one bridge translating the SD format command or the SD format data transmitted by the SD host into other specific memory card format command or other specific memory card format data, or translating the other specific memory card format data into the SD format data for transmitting to the at least one SD host;
• and
• at least one other specific memory card connecting interface storing the other specific memory card format data in a corresponding other specific memory card based on the other specific memory card format command transmitted from the bridge, or retrieving the SD format data from the corresponding other specific memory card to the SD bridge.