SEMICONDUCTOR DEVICE WITH MODIFIED COMMAND AND ASSOCIATED METHODS AND SYSTEMS

Memory devices, systems including memory devices, and methods of operating memory devices are described, in which a host device may directly access a portion of memory array that is otherwise reserved for ECC functionality of a memory device. The memory array may correspond to a set of memory addresses, where each memory address of the set corresponds to a first portion of the memory array (e.g., user data plane) and to a second portion of the memory array (e.g., ECC plane). The second portion may be configured to store ECC data or second user data or metadata based on whether the ECC functionality is enabled or disabled. The memory device may determine a command directed to the memory address of the set is configured to access the first portion or the second portion based on a status of a pin associated with the command.