Micron Technology Incorporated

Antonino Capri'

Marco Messina

Salvatore Giove

Antonino Giuseppe La Spina

Vijay Malhi

Simone Corbetta

Filippo Leonini

Alessandro Lucio Iannuzzi

Various embodiments provide a memory system architecture for heterogeneous memory technologies, which can be implemented by a memory sub-system. A memory system architecture of some embodiments can support servicing an individual command request using different (heterogeneous) memory technologies, such as different types of memory devices (e.g., heterogeneous memory devices), different types of memory device controllers (e.g., heterogeneous memory device controllers), different types of data paths (e.g., data paths with different protocols or protocol constrains), or some combination thereof. According to various embodiments, the memory system architecture uses tracking and management of multiple command responses to service a single command request from a host system.

Memory system architecture for heterogeneous memory technologies

Various embodiments comprise apparatuses and methods to allow access to a memory device by an external device. A method includes receiving, at the memory device, a request from the external device to access a storage area of the memory device and performing an unlock procedure of the storage area. The unlock procedure includes sending a first code from the memory device to the external device, and receiving a second code at the memory device from the external device. The second code is to be generated by a first encryption process performed on the first code to obtain the second code. The storage area is temporarily unlocked to allow the external device to access the storage area based on a determination that the received second code has a predetermined relationship to the first code. Additional apparatuses and methods are described.

Security memory access method and apparatus

A memory device includes: at least one storage area for storing data; a protection control structure adapted to selectively allow an external device access to the at least one storage area of the memory, the storage area being not freely accessible by the external device if protected; a control logic adapted to identify an access request by the external device to the at least one storage area and cooperating with the protection control structure for managing an unlock procedure for selectively granting the external device at least temporary access rights to the storage area if protected; means for providing a first code to the external device in said unlock procedure; means for receiving a second code from the external device in response to said first code; means for verifying validity of the received second code. The means for verifying validity are adapted to ascertain a correspondence of the second code with the first code based on a predetermined relationship. The control logic instructs the protection control structure to grant access to the storage area if the validity of the received second code has been verified. The first code issued by the memory device to the external device upon receiving an access request is changed after performing predetermined number of unlock procedures.

Enhanced security memory access method and architecture

Growing community of inventors

Villafranca, Italy

Antonino Capri'