Memory system, control method thereof, and information processing apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsHiroaki TANAKA, Hirokazu Morita
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Abstract
According to the embodiment, a nonvolatile semiconductor memory that includes a plurality of banks capable of operating in parallel, a command analyzing unit that, upon receiving a power management command from a host, analyzes the received power management command, and a recording control unit that dynamically and variably controls an upper limit of the number of banks to be operated in parallel at a time of writing in accordance with an analysis result by the command analyzing unit are included, thereby suppressing the upper limit of a power consumption in accordance with an instruction from the host.
Claims20
A memory system comprising:
- a nonvolatile semiconductor memory that includes a plurality of banks capable of operating in parallel;
- a command analyzing unit that, upon receiving a power management command from a host apparatus, analyzes received power management command;
- and
- a recording control unit that dynamically and variably controls an upper limit of number of banks to be operated in parallel at a time of writing in accordance with an analysis result by the command analyzing unit.
A method of controlling a memory system that includes a nonvolatile semiconductor memory including a plurality of banks capable of operating in parallel, the method comprising:
- analyzing, upon receiving a power management command from a host apparatus, received power management command;
- and
- dynamically and variably controlling an upper limit of number of banks to be operated in parallel at a time of writing in accordance with an analysis result.
An information processing apparatus comprising:
- a host apparatus;
- and
- a memory system that includes a nonvolatile semiconductor memory including a plurality of banks capable of operating in parallel, wherein
- the memory system includes
- a command analyzing unit that, upon receiving a power management command from the host apparatus, analyzes received power management command, and
- a recording control unit that dynamically and variably controls an upper limit of number of banks to be operated in parallel at a time of writing in accordance with an analysis result by the command analyzing unit.
Dependencies are inferred from the claim text.