Memory controller and method of operating the same

A method of operating a memory controller, the method comprising:

• generating commands sequentially based on a request received from a host;
• storing the sequentially generated commands in a plurality of buffers according to command attributes;
• comparing a sequence number of a target command stored in a target buffer satisfying a flush condition among the plurality of buffers with a sequence number of a standby command stored in a remaining buffer;
• comparing first addresses for the target command with second addresses for the standby command to identify an overlapping address;
• and
• controlling a process of the standby command based on a comparison result of the sequence number of the target command and the sequence number of the standby command.

A method of operating a memory controller, the method comprising:

• receiving a plurality of requests;
• sequentially generating a plurality of commands corresponding to the plurality of request in which each of the plurality of commands has a command attribute and a sequence number;
• sorting the plurality of commands in a command queue into a target buffer and a remaining buffer according to the command attribute of each of the plurality of commands;
• comparing a sequence number of a command flushed from the target buffer and a sequence number of a command stored in a remaining buffer;
• comparing a plurality of first addresses corresponding to the command flushed from the target buffer with a plurality of second addresses corresponding to the command stored in a remaining buffer to identify an overlapping block address;
• and
• skipping the performing of a process of the command from the remaining buffer on the overlapping block address when the sequence number of the command flushed from the target buffer is greater than the sequence number of the command stored in the remaining buffer.