Memory card and memory card system

A memory card comprising:

• a memory having a data area for storing data and a management information area for storing information of managing data stored in said data area;
• and
• a controller for controlling an operation on each of the areas in said memory by a command supplied from the outside,
• wherein said command includes a first command for executing an operation of shifting an operation state from a normal state to an erasing process pre-execution state, and a second command of performing an operation of shifting the operation state from said erasing process pre-execution state to an erasing process execution state and erasing all of information in said data area and said management information area in said memory.

A system comprising:

• memory card including:
• a memory having a data area for storing data and a management information area for storing information of managing data stored in said data area;
• and a controller for controlling an operation on each of the areas in said memory by a command supplied from the outside;
• and
• a host device for controlling operation of said memory card by supplying a command to said memory card,
• wherein said command includes a third command for executing an operation of erasing information in said data area in said memory and a fourth command of executing an operation of erasing all of information in said data area and said management information area in said memory.

A semiconductor processor comprising:

• a controller;
• an encryption processor;
• and
• a first nonvolatile memory having a plurality of nonvolatile memory cells and storing encrypted information,
• wherein said controller sets each of the nonvolatile memory cells in said first nonvolatile memory into a first state in response to a first command from the outside.

A nonvolatile memory device comprising:

• a first semiconductor processor;
• a second semiconductor processor;
• and
• a first nonvolatile memory connected to said first semiconductor processor,
• wherein said second semiconductor processor has a second nonvolatile memory,
• a plurality of commands are input from the outside to said first semiconductor processor,
• said first semiconductor processor performs a control of erasing all of information stored in said first nonvolatile memory in response to input of a first command, and
• said first semiconductor processor performs a control of erasing all of information stored in said second nonvolatile memory in response to input of a second command.

A nonvolatile memory device comprising:

• a first semiconductor processor;
• and
• a first nonvolatile memory,
• wherein said first semiconductor processor has a first controller for performing a control of accessing said first nonvolatile memory, a second nonvolatile memory, and a second controller for performing a control of accessing said second nonvolatile memory, and is formed on one first semiconductor substrate,
• wherein a plurality of commands are input from the outside to said first semiconductor processor,
• wherein said first controller performs a control of erasing information stored in said first nonvolatile memory in response to input of a first command, and
• wherein said second controller performs a control of erasing information stored in said second nonvolatile memory in response to input of a second command.