| 摘要 |
This invention is a memory card as an external connection device to be connected to an information processing device such as a computer as a host device. A memory card (1) has a register circuit (13), a data buffer circuit (14), a memory I/F controller (16), and a flash memory (17). The register circuit (13) and the data buffer circuit (14) are accessed from the host device using a command (TPC) defined by a transfer protocol. As a TPC, extension command is set which is adapted for simultaneously transferring a parameter to be stored into the register circuit (13) and a control command to be provided to the memory I/F controller (16). <IMAGE> |
