Samsung Electronics Co., Ltd.

Hyunsoo Cho

Dong-Min Kim

Kyoung Back Lee

Sangyoon Oh

Jeong Hur

Kyoungil Bang

Jeangsu Hwang

An electronic system includes a host including a host memory; and a storage device storing data from the host, wherein the host allocates first and second host memory buffer (HMB) regions having different attributes in the host memory, and provides a host memory descriptor list (HMDL) including address information and attribute information of each of the first and second HMB regions to the storage device, the storage device buffers data in the first and second HMB regions with reference to the HMDL, and the host releases the first and second HMB regions, and provides data buffered in the first HMB region to the storage device and maintains data buffered in the second HMB region in the host memory, according to an attribute of each of the first and second HMB regions.

Storage device and electronic system

An operation method of a UFS device including: determining, by a host, area information for write data, wherein in a turbo read the write data is stored in a non-pinned or pinned buffer area and in a normal read the write data is stored in a user storage; transferring, by the host, a first command UFS protocol information unit (UPIU); transferring, by the UFS device, an RTT UPIU to the host, transferring, by the host, a DATA OUT UPIU to the UFS device; mapping, by UFS device, a first logical block address with a physical address of an area corresponding to the area information; transferring, by the host, a second command UPIU; and performing the turbo read on the area to read data corresponding to the first logical block address when the area corresponding to the area information is the pinned or non-pinned turbo write buffer.

Storage device including a turbo write buffer divided into a non-pinned buffer area and a pinned buffer area, an operation method of a storage system including the storage device in which data of the non-pinned and pinned buffer areas are flushed differently, and a host device controlling the storage device

A storage device including: a nonvolatile memory device including a first, second and third area; and a controller to receive a first write command including a first logical block address from a host, to receive first data corresponding to the first logical block address in response to the first write command, and store the first data in the nonvolatile memory device, when the first write command includes area information, the controller stores the first data in the first area or the second area based on the area information, when the first write command does not include the area information, the controller stores the first data in the third area, each of the first area and the second area includes memory cells each storing 'n' bits (n being a positive integer), and the third area includes memory cells each storing 'm' bits (m being a positive integer greater than n).

Storage device, an operation method of a storage system including the storage device in which data stored in apinned buffer area and a non-pinned buffer area is flushed according to a flush request/policy, and a host device controlling the storage device

A storage device includes a nonvolatile memory device including a first region and a second region, and a controller that receives a first operation command including move attribute information and a first logical block address from an external host device and moves first data corresponding from the first region to the second region in response to the received first operation command, and when the first operation command does not include the move attribute information, the controller performs a first operation corresponding to the first operation command.

Storage device

A storage device of a storage system includes a device Direct Memory Access (DMA) configured to calculate a data transfer amount based on size information of data provided to a DMA queue; a command manager configured to receive the data transfer amount from the device DMA and to calculate a transfer speed using a speed mode table; and a device interface configured to transfer the transfer speed to a host.

Storage system for changing a data transfer speed and a method of changing the data transfer speed thereof

A nonvolatile memory device includes a plurality of memory cells and a plurality of monitor cells. The method of operating the device includes erasing the plurality of memory cells and the plurality of monitor cells, programming at least one first memory cell among the plurality of memory cells to a first program state, programming at least one first monitor cell among the plurality of monitor cells to the first program state, and refreshing data stored in the plurality of memory cells according to a result read from the at least one first monitor cell during a read operation of the at least one first monitor cell.

Growing community of inventors

Bucheon-si, South Korea

Hyunsoo Cho