Memory system and method
AssigneeKioxia Corporation
InventorTakashi Ishiguro
Life of this patent
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Abstract
According to one embodiment, a memory system is connectable to a host. The memory system includes a nonvolatile memory and a controller. The controller is electrically connected to the nonvolatile memory. The controller determines lanes to be set to an operating state among a plurality of lanes of a link between the host and the memory system, based on first information on one or more commands issued by the host. The controller sets the determined lanes among the plurality of lanes to the operating state. The controller sets lanes other than the determined lanes among the plurality of lanes to a low power consumption state.
Claims21
A memory system connectable to a host, comprising:
- a random access memory;
- a nonvolatile memory;
- and
- a controller electrically connected to the nonvolatile memory and configured to:
- determine lanes to be set to an operating state among a plurality of lanes of a link between the host and the memory system, based on first information on one or more commands issued by the host, the first information including storage completion information indicating that data to be written into the nonvolatile memory in accordance with at least one of the one or more commands has been stored in the random access memory;
- decrease the number of the lanes set to the operating state in accordance with the storage completion information;
- set the determined lanes among the plurality of lanes to the operating state;
- and
- set lanes other than the determined lanes among the plurality of lanes to a low power consumption state.
A memory system connectable to a host, comprising:
- a random access memory;
- a nonvolatile memory;
- and
- a controller electrically connected to the nonvolatile memory and configured to:
- determine lanes to be set to an operating state among a plurality of lanes of a link between the host and the memory system, based on first information on one or more commands issued by the host, the first information including storage completion information indicating that data read from the nonvolatile memory in accordance with at least one of the one or more commands has been stored in the random access memory;
- increase the number of the lanes set to the operating state in accordance with the storage completion information;
- set the determined lanes among the plurality of lanes to the operating state;
- and
- set lanes other than the determined lanes among the plurality of lanes to a low power consumption state.
A memory system connectable to a host, comprising:
- a random access memory;
- a nonvolatile memory;
- and
- a controller electrically connected to the nonvolatile memory and configured to:
- determine lanes to be set to an operating state among a plurality of lanes of a link between the host and the memory system, based on first information on one or more commands issued by the host, the first information including output preparation completion information indicating that data to be read from the nonvolatile memory in accordance with at least one of the one or more commands is ready to be output from the nonvolatile memory to the random access memory;
- increase the number of the lanes set to the operating state in accordance with the output preparation completion information;
- set the determined lanes among the plurality of lanes to the operating state;
- and
- set lanes other than the determined lanes among the plurality of lanes to a low power consumption state.
Dependencies are inferred from the claim text.