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US 2025/0085894 A1Published application
Controller, storage device and computing system
AssigneeSK hynix Inc.
InventorsJung Ho LEE, Min Su SON, Sung Ju YOO, Ji Hun CHOI
Life of this patent
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Abstract
A storage device manages memory use data, such as map data which the storage device manages using a host memory, as journal data in a buffer memory located inside the storage device in a low power mode. The memory use data may be managed by updating journal data during the low power mode, and a command of a host device may be processed by updated journal data after switching from a low power mode to an active mode.
Claims19
A storage device comprising:
- a memory;
- and
- a controller configured to control the memory
- to store, in a buffer memory when receiving a mode change signal from a host device having a host memory, journal data corresponding to at least some of memory use data stored in the host memory,
- to process a command of the host device using the journal data, and
- to transmit a mode change acknowledgement signal, corresponding to the mode change signal, to the host device.
3 more elements
A computing system comprising:
- a host device including a host memory;
- and
- a memory device including a memory, and the memory device is configured to store, in a buffer memory when receiving a mode change signal from the host device, journal data corresponding to at least some of memory use data stored in the host memory and used to process a command of the host device, and to transmit a mode change acknowledgement signal corresponding to the mode change signal to the host device.
A controller comprising:
- a buffer memory;
- and
- a processor configured to store, in the buffer memory when receiving a mode change signal from a host device, journal data corresponding to at least some of map data stored in a host memory included in the host device, and to transmit a mode change acknowledgement signal corresponding to the mode change signal to the host device.
Dependencies are inferred from the claim text.