Storage controller and an operation method of the storage controller

An operation method of a storage controller, the method comprising:

• receiving a write request including a logical address from a host device, the logical address including a first address part, a second address part, and a third address part;
• performing an XOR operation on the first address part and a seed to generate a first intermediate value;
• performing a hash operation on the first intermediate value to generate a second intermediate value;
• performing an XOR operation on the second intermediate value and the second address part to generate a scrambled second address part;
• and
• outputting a command corresponding to the write request based on the scrambled second address part to a first nonvolatile memory through a first channel or to a second nonvolatile memory through a second channel.

A storage controller, comprising:

• a host interface circuit receiving a write request including a logical address from a host device, the logical address including a first address part, a second address part, and a third address part;
• a scramble circuit that includes:
• a first XOR circuit performing an XOR operation on the first address part and a seed to generate a first intermediate value;
• a hash circuit performing a hash operation on the first intermediate value to generate a second intermediate value;
• and a second XOR circuit performing an XOR operation on the second intermediate value and the second address part to generate a scrambled second address part;
• and
• a memory interface circuit outputting a command corresponding to the write request based on the scrambled second address part to a first nonvolatile memory through a first channel or to a second nonvolatile memory through a second channel.