Host systems, memory systems, storage mediums, and electronic apparatuses and operation methods thereof

A memory system, coupled to a host system and comprising:

• a memory device, comprising a plurality of regions, wherein the plurality of regions comprises a first region;
• and
• a memory controller, coupled to the memory device, and configured to:
• receive a first instruction;
• in response to the first instruction, set the first region to a pinned region;
• and
• determine mapping information corresponding to the first region, wherein the first region is determined according to an application corresponding to a respective region.

An electronic apparatus, comprising:

• a host system;
• and
• a memory system, coupled to the host system and comprising:
• a memory device;
• and
• a memory controller coupled to the memory device,
• wherein the memory device comprises a plurality of regions;
• and the plurality of regions comprises a first region;
• the host system is configured to send a first instruction;
• and
• the memory controller is configured to:
• receive the first instruction;
• in response to the first instruction, set the first region to a pinned region;
• and
• determine mapping information corresponding to the first region, wherein the first region is determined according to an application corresponding to a respective region.