External storage apparatus and control apparatus thereof,...

Details External storage apparatus and control apparatus thereof,... External storage apparatus and control apparatus thereof,...

2008-04-22

2008-04-22

Kim, Ahshik (Department: 2876)

Registers

Records

Conductive

C235S487000

Reexamination Certificate

active

07360715

ABSTRACT:
The object of the present invention is to enable to prevent an erroneous erase of a data stored or writing another data on the data as well as to enable to easily switch an erroneous erase prevention switch.A command generator35, upon reception of a register instruction for checking a state of a memory card2received via an S/P & P/S sequencer, sets a state of an erroneous erase prevention switch23in a register and transmits this register content via the S/P & P/S sequnecer31to a host computer. According to the register content from the memory card, the host computer decides whether a write protect is ON and executes a write inhibit processing when the write protect is ON.

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