Method for data management and memory storage device and memory control circuit unit
AssigneePhison Electronics Corp.
InventorChih-Kang Yeh
Life of this patent
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Abstract
A method for data management and a memory storage device and a memory control circuit unit thereof. The method includes: configuring a NVRAM and a VRAM; storing first data which includes writing data from a host system in the NVRAM; storing second data read from a rewritable non-volatile memory module in the VRAM; when the memory storage device is re-powered on after power failure, reading the first data from the NVRAM, so as to write the writing data into the rewritable non-volatile memory module.
Claims25
A method for data management, for a memory control circuit unit configured to control a rewritable non-volatile memory module, the method comprising:
- configuring a non-volatile random access memory (NVRAM) and a volatile random access memory (VRAM);
- storing first data in the NVRAM, wherein the first data comprises writing data from a host system;
- storing second data read from the rewritable non-volatile memory module in the VRAM;
- and
- when a memory storage device is re-powered on after a power failure, writing the first data into the rewritable non-volatile memory module from the NVRAM.
A memory storage device, comprising:
- a connection interface unit, configured to be coupled to a host system;
- a rewritable non-volatile memory module;
- a non-volatile random access memory (NVRAM);
- a volatile random access memory (VRAM);
- and
- a memory control circuit unit, coupled to the connection interface unit, the NVRAM, the VRAM and the rewritable non-volatile memory module, wherein
- the memory control circuit unit is configured to store first data in the NVRAM, wherein the first data comprises writing data from the host system,
- the memory control circuit unit is further configured to store second data read from the rewritable non-volatile memory module in the \TRAM, and
- when the memory storage device is re-powered on after a power failure, the memory control circuit unit is further configured to write the first data into the rewritable non-volatile memory module from the NVRAM.
A memory control circuit unit, configured to control a rewritable non-volatile memory module, the memory control circuit unit comprising:
- a host interface, configured to be coupled to a host system;
- a memory interface, configured to be coupled to the rewritable non-volatile memory module;
- a non-volatile random access memory (NVRAM);
- a volatile random access memory (VRAM);
- and
- a memory management circuit, coupled to the host interface, the memory interface, the NVRAM, the VRAM and the rewritable non-volatile memory module, wherein
- the memory management circuit is configured to store first data in the NVRAM, wherein the first data comprises writing data from the host system,
- the memory management circuit is further configured to store second data read from the rewritable non-volatile memory module in the VRAM, and
- when a memory storage device is re-powered on after a power failure, the memory management circuit is further configured to write the first data into the rewritable non-volatile memory module from the NVRAM.
Dependencies are inferred from the claim text.