| 摘要 |
An interface circuit performing data transfer between a host device and a peripheral device, which includes at least two interface blocks; and a card identification circuit configured to access the peripheral device to determine a transfer mode of the peripheral device, wherein the interface circuit determines a mode of data transfer between the host device and the peripheral device on the basis of the transfer mode of the peripheral device. A system device including a host device; a peripheral device; and the interface circuit. A data interface method for performing data transfer between a host device and a peripheral device, including accessing the peripheral device to determine a transfer mode of the peripheral device; and determining a mode of data transfer between the host device and the peripheral device according to the transfer mode of the peripheral device.
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