Storage device controlling input/output operation based on mode of operations and electronic device including the same

A storage device comprising:

• a volatile memory;
• a plurality of non-volatile memories;
• input/output resources configured to communicate with a host device;
• and
• a controller configured to control a second data input/output operation with the host device using the volatile memory during a mode in which the input/output resources are not occupied by a first data input/output operation using the plurality of non-volatile memories,
• wherein the volatile memory is configured to store a first map table including physical addresses of the plurality of non-volatile memories for accessing first data corresponding to the first data input/output operation from the plurality of non-volatile memories, and store a second map table including physical addresses of the volatile memory for accessing second data corresponding to the second data input/output operation from the volatile memory, and
• wherein the controller is configured to control the storage device to
• move the first map table from the volatile memory to the plurality of non-volatile memories when changing from a first mode to the mode in which the input/output resources are not occupied by the first data input/output operation,
• move the second data corresponding to the second data input/output operation from the plurality of non-volatile memories to the volatile memory when changing from the first mode to the mode in which the input/output resources are not occupied by the first data input/output operation,
• move the first map table from the plurality of non-volatile memories to the volatile memory when changing from the mode in which the input/output resources are not occupied by the first data input/output operation to the first mode, and
• move the second data corresponding to the second data input/output operation from the volatile memory to the plurality of non-volatile memories when changing from the mode in which the input/output resources are not occupied by the first data input/output operation to the first mode,
• wherein the second map table and the second data are stored separately in the volatile memory during the mode in which the input/output resources are not occupied by the first data input/output operation,
• wherein the controller is configured to
• start a timer in response to the second data input/output operation completing,
• update and transmit mode state information to the host device in response to the timer expiring, and
• change the mode of the storage device in response to receiving a mode change command from the host device.