US 2014/0372680 A1Published application

Embedded storage and embedded storage system

AssigneeMemoright (Wuhan) Co., Ltd.

InventorsMagnus Tsai, Steven Lee

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Abstract

Provided are an embedded storage and an embedded storage system. The embedded storage includes a flash memory control unit, a host interface unit, and at least one off-chip flash memory interface unit. The embedded storage system includes the embedded memory and at least one expanded flash memory. The expanded flash memory performs data interaction with the flash memory control unit through the off-chip flash memory interface unit. The embedded storage and the embedded storage system can solve that because an embedded memory does not have an off-chip flash memory interface for connection to an off-chip flash memory, resulting in poor expandability for storage capacity of the embedded memory. A storage cost may further be lowered through a combination of various types of NAND flash memories.

Claims20

Dependent claims

An embedded storage, comprising:

a flash memory control unit and a host interface unit, and further comprising:
at least one off-chip flash memory interface unit;
wherein the flash memory control unit is connected to the host interface unit and the off-chip flash memory interface unit, and is used for implementing control on the host interface unit and the off-chip flash memory interface unit;
the host interface unit provides an interface for a host externally, is connected to the flash memory control unit internally, and is used for implementing data interaction between the host and the flash memory control unit;
and the off-chip flash memory interface unit provides externally an interface for performing data transmission with an expanded flash memory, is connected to the flash memory control unit internally, and is used for implementing data interaction between the expanded flash memory and the flash memory control unit.

2 more elements

Dependencies are inferred from the claim text.