Memory system
AssigneeKabushiki Kaisha Toshiba
InventorsSatoshi Kaburaki, Atsushi Kunimatsu
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a memory system includes nonvolatile memories each storing data and an address table for acquiring an address of the data, and a control unit which is configured to be capable of accessing the nonvolatile memories in parallel, and issues table read requests for reading the address tables and data read requests for reading the data to the nonvolatile memories in response to read commands from a host. When a table read request and a data read request are issued to a same nonvolatile memory, the control unit processes the data read request in priority to the table read request.
Claims20
A memory system comprising:
- nonvolatile memories each storing data and an address table for acquiring an address of the data;
- and
- a control unit which is configured to be capable of accessing the nonvolatile memories in parallel, and issues table read requests for reading the address tables and data read requests for reading the data to the nonvolatile memories in response to read commands from a host,
- wherein, when a table read request and a data read request are issued to a same nonvolatile memory, the control unit processes the data read request in priority to the table read request.
A method of controlling a memory system comprising nonvolatile memories each of which stores data and an address table for acquiring an address of the data, the method comprising:
- accessing the nonvolatile memories in parallel;
- issuing table read requests for reading the address table and data read requests for reading the data, to the nonvolatile memories in response to read commands from a host;
- and
- processing the data read request in priority to the table read request when the table read request and the data read request are issued to a same nonvolatile memory.
Dependencies are inferred from the claim text.