Data storage device and method including receiving an external multi-access command and generating first and second access commands for first and second nonvolatile memories

A data storage device, comprising:

• a first nonvolatile memory device;
• a second nonvolatile memory device;
• and
• a management circuit connected to the first nonvolatile memory device and the second nonvolatile memory device,
• wherein the management circuit is configured to:
• receive an external multi-access command, the external multi-access command received from outside the data storage device and including a first address and a second address, a command identifier that identifies the command for later matching with corresponding data, and a command-type indicator that designates the type of command as one of a single-access or a multi-access command,
• based on the external multi-access command and the first address, generate a first internal access command and supply the first internal access command and the first address to the first nonvolatile memory device, and
• based on the external multi-access command and the second address, generate a second internal access command and supply the second internal access command and the second address to the second nonvolatile memory device.