Toshiba Memory Corporation

Kabushiki Kaisha Toshiba

Kioxia Corporation

Shoji Sawamura

Nobuhiro Kondo

Kenichi Maeda

Atsushi Kunimatsu

Toshio Fujisawa

Kenichiro Yoshii

Koichi Nagai

Daisuke Iwai

Yukimasa Miyamoto

Toru Katagiri

Takaya Horiki

Yaotung Kuo

According to one embodiment, a memory device includes a nonvolatile memory, a volatile memory, a controller, and a board. The nonvolatile memory stores data. The volatile memory holds a part of the data stored in the nonvolatile memory. The memory controller controls the volatile memory and the nonvolatile memory. The nonvolatile memory, the volatile memory, and the memory controller are provided on the board. The memory controller transmits an interrupt signal to a request source, when the volatile memory does not have any data corresponding to an address which the request source requests to access.

Memory controller configured to transmit interrupt signal if volatile memory has no data corresponding to address requested from source

According to one embodiment, a memory system is connectable to a host device including a first memory. The memory system includes a memory controller and a second memory in which data from a host device is stored. The memory controller includes a third memory, a first unit and a second unit and has a first space. The first unit designates a first address in the first space. The second unit converts, by using a conversion table, the first address into a second address in a first area of the first memory. The conversion table includes a plurality of layers and includes a first conversion table of a top layer and a second conversion table of a layer lower than the first conversion table. The first conversion table is stored in the third memory. The second conversion table is stored in a second area of the first memory.

Memory system which uses a host memory

According to one embodiment, a memory module includes a volatile memory, a nonvolatile memory, and a controller. The volatile memory is data readable and writable. The nonvolatile memory is data readable and writable and stores therein correspondence information containing an attribute indicating any of volatile, nonvolatile, and both of volatile and nonvolatile associated with an address in an address space assigned to the volatile memory and the nonvolatile memory. The controller reads data from and writes data to the volatile memory or the nonvolatile memory, referring to the correspondence information.

Memory module, electronic device and method

A memory device according to an embodiment includes a non-volatile storage device, a volatile storage device that stores saved data which is saved in the host-side storage device when a first operation mode changing process is executed by the memory device, and a control unit. The control unit transmits, to the host device, a write command that is an instruction to write the saved data to the host-side storage device and the saved data, when the first operation mode changing process is executed by the memory device.

Memory device, information-processing device and information-processing method

According to one embodiment, a data storing method includes saving data stored in a memory device to a host device and verifying validity or accuracy of the data saved in the host device.

Memory device and data storing method

Growing community of inventors

Yokohama, Japan

Shoji Sawamura