Memory system, memory controller and operating method of memory controller

A memory controller comprising:

• a host interface configured to communicate with a host;
• a memory interface configured to communicate with a memory device;
• and
• a control circuit configured to control the memory device,
• wherein the memory device stores firmware which includes a plurality of binaries including a first binary and a second binary,
• wherein the control circuit loads the first binary to a second region which is included in a first region in a working memory, loads the second binary to a third region which is included in the first region and is different from the second region, and stores information on an entry function, corresponding to a target function in the second binary, in a fourth region which is different from the first region, and
• wherein a start address of the second region is determined as a fixed value, and a start address of the third region is dynamically determined.

A method for operating a memory controller for controlling a memory device, comprising:

• loading a first binary, among a plurality of binaries in firmware stored in the memory device, to a second region which is included in a first region in a working memory;
• loading a second binary, among the plurality of binaries in the firmware, to a third region which is included in the first region and is different from the second region;
• and
• storing information on an entry function, corresponding to a target function in the second binary, in a fourth region which is different from the first region,
• wherein a start address of the second region is determined as a fixed value, and a start address of the third region is dynamically determined.