Flash memory controller and control method for same, and flash memory storage device

A technology of flash memory controller and control method, which is applied in the directions of memory address/allocation/relocation, sustainable building, energy-saving computing, etc., and can solve the problems such as the inconvenience of the flash memory controller, so as to reduce command switching time, reduce overhead, and reduce Effect of Die Area and Power Consumption

Active Publication Date: 2012-11-28
RAMAXEL TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the existing flash memory controller obviously has inconvenience and defects in actual use, so it is necessary to improve

Method used

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  • Flash memory controller and control method for same, and flash memory storage device
  • Flash memory controller and control method for same, and flash memory storage device
  • Flash memory controller and control method for same, and flash memory storage device

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 2 As shown, a flash memory controller 100 of the present invention is used to control a plurality of flash memory particles 200 of non-volatile flash memory, which mainly includes: a command generation state machine 10, a core controller 20, and a command recovery state machine 30, The command generation state machine 10 and the command recovery state machine are respectively connected and coupled to the core controller 20 through a synchronous FIFO (first in first out) buffer 40 .

[0036] The command generation state machine 10 is used for receiving commands from multiple ...

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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 for the flash memory controller, and a flash memory storage device. The control method of the flash memory controller comprises the following steps that: a command generation state machine receives commands from multiple command interfaces of a flash memory, translates the commands and forwards the translated commands to a core controller, and writes the address of the command complete state information in a buffer register in advance; and after the core controller finishes execution of commands, a command recycle state machine queries the corresponding command complete state information of the command from the core controller, and writes the command complete state information in an internal memory according to the address in the buffer register. Therefore, the method provided by the invention can improve the command generation efficiency and the command recycle efficiency, reduce the overhead on hardware resource and reduce the chip area and power consumption.

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. [0003] figure 1 It is a schematic structure diagram of an existing flash memory controller. The flash memory controller includes a core controller, multiple command controllers, and multiple ...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/02
CPCY02B60/1225Y02D10/00
Inventor莫海锋
OwnerRAMAXEL TECH SHENZHEN