Memory card, nonvolatile memory, controller, and method for managing writing errors for nonvolatile memories

A memory card, coupled to a host, comprising:

• a controller, comprising a data buffer for storing data received from the host, sending the data to a nonvolatile memory, and directing the nonvolatile memory to write the data to a first memory space with a first write address;
• and
• the nonvolatile memory, comprising a data register for storing the data received from the controller, writing the data to the first memory space with the first write address, and keeping the data from being changed after the data is written to the first memory space;
• wherein if an error occurs when the nonvolatile memory writes the data to the first memory space, the nonvolatile memory reports the error to the controller, the controller then sends a read-back command to the nonvolatile memory, and the nonvolatile memory then sends the data stored in the data register back to the controller according to the read-back command.

A method for managing writing errors for a nonvolatile memory, wherein the nonvolatile memory is coupled to a controller, comprising:

• storing data received from the controller in a data register of the nonvolatile memory;
• writing the data stored in the data register to a first memory space with a first write address according to instructions from the controller;
• keeping the data stored in the data register from being changed after the data is written to the first write address;
• when an error occurs in writing of the data to the first memory space, sending a read-back command from the controller to the nonvolatile memory;
• and
• after the nonvolatile memory receives the read-back command, sending the data stored in the data register back to the controller according to the read-back command.

A controller for a nonvolatile memory, comprising:

• a data buffer, storing data received from a host;
• and
• a control unit, sending the data stored in the data buffer to a data register of the nonvolatile memory, directing the nonvolatile memory to write the data stored in the data register to a first memory space with a first write address, and sending a read-back command to the nonvolatile memory to direct the nonvolatile memory to send the data stored in the data register back to the controller when an error occurs in writing of the data to the first memory space,
• wherein the nonvolatile memory keeps the data stored in the data register from being changed after the nonvolatile memory writes the data to the first write address.