A kind of flash memory controller and its control method, flash storage device

A technology of flash memory controller and control method, which is applied in the direction of instrumentation, electrical digital data processing, etc., and can solve the problems of command controller state machine stopping in a certain state, reducing command execution speed, and limited cache address space, etc., so as to reduce the area and power consumption, increased flexibility, and reduced consumption
CN102768647BInactive Publication Date: 2015-11-25RAMAXEL TECH SHENZHEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RAMAXEL TECH SHENZHEN
Publication Date
2015-11-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention is applicable to the technical field of solid state storage, and provides a flash memory controller and a control method thereof as well as flash memory storage equipment. The control method of the flash memory controller comprises the following steps: a command generating state machine receives commands from a plurality of command interfaces of the flash memory, translates the commands and then transmits to a core controller, and pre-writes the address of commands completion state information into a buffer register; the core controller executes the commands and a data address state machine provides the data address for the core controller according to the execution dynamic of the core controller; and after the core controller executes the commands, a command recovering state machine inquires the commands completion state information corresponding to the commands from the core controller, and writes the command completion state information into an internal memory according to the address of the buffer register. Therefore, the execution speed of the commands can be increased; the core controller has sufficient commands to realize high-performance data transmission; the performance of the flash memory controller is guaranteed; and the generating and recovering efficiency of the commands is improved.
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Description

technical field

[0001] The invention relates to the technical field of solid-state storage, in particular to a flash memory controller, a control method thereof, and a flash memory storage device. Background technique

[0002] The flash memory controller in the current flash memory controls multiple flash memory particles at the same time, and these flash memory particles share a data and command channel, and the controller realizes the operation of the selected flash memory particle through a chip select signal. In order to achieve the goal of high-speed transmission, the data and command channels of the flash memory particles are required to transmit commands and data uninterruptedly, and the flash memory controller is fully loaded to switch between multiple flash memory particles. Therefore, it is necessary for the flash memory controller to be able to obtain multiple flash memories Granular commands, and can switch between commands flexibly.

[0003] figure 1 It is a s...

Claims

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