CN206848990U - A kind of solid state hard disc with real-time read or write speed - Google Patents

Abstract

The utility model provides a kind of solid state hard disc with real-time read or write speed, including sets control unit and memory cell on circuit boards, and control unit is connected read-write of the realization to memory cell with host equipment；Also include buffer unit and bus, buffer unit includes the cache partitions of the integral multiple of block size in memory cell；Bus is connected with host equipment, memory cell and buffer cell respectively, under control unit control, host equipment directly reads the data of memory cell, host equipment directly writes to described buffer unit, when being filled with any cache partitions during buffer unit is deposited, memory cell is written to by bus.In the utility model, due to being provided with buffer unit in SSD, host equipment real time readouts according to when can directly read content in flash memory, data to be written can be write in the buffer unit of internal storage location when writing data, and the cache partitions in buffer unit are then written to flash chip when being filled with, and realize host equipment to the real-time read-writes of SSD.

Description

A kind of solid state hard disc with real-time read or write speed

Technical field

It the utility model is related to a kind of solid state hard disc with real-time read or write speed.

Background technology

Solid state hard disc (English：Solid State Disk or Solid State Drive, abridge SSD), also known as solid-state is driven Dynamic device.Solid state hard disc is made up of control unit and memory cell (FLASH chip, dram chip).It is special compared with conventional hard Part is not no mechanical structure, has the advantages that low power consumption, shatter-proof, stability is high, low temperature resistant.

But solid state hard disc flash memory has the problem of erasable number limits, and as the storage device of computer system, Frequently read-write is necessary when use, will so greatly reduce its service life.In addition, solid state hard disc is being written and read When, although needing the addressing time to be had unlike mechanical hard disk, the speed of reading is ideal, and write-in data are slower, especially It is the hard disk as the computer of Windows systems, the speed write is not to the utmost in the human world, further, since Windows systems are in itself Real-time is limited, and solid state hard disc is less adapted to real-time data memory at present.

Utility model content

The utility model is poorly suited for the deficiency of real time data read-write for current solid state hard disc, there is provided one kind tool is in reality When read or write speed solid state hard disc.

The utility model in order to realize its technical purpose used by technical scheme be：A kind of tool is in real-time read or write speed Solid state hard disc, including control unit and memory cell on circuit boards are set, described control unit is connected with host equipment Realize the read-write to memory cell；Also include buffer unit and bus, described buffer unit includes block size in memory cell Integral multiple cache partitions；Described bus is connected with host equipment, memory cell and buffer cell respectively, in described control Under unit control processed, host equipment directly reads the data of described memory cell, and host equipment directly writes to described delay Memory cell, when being filled with any cache partitions during buffer unit is deposited, described memory cell is written to by bus.

In the utility model, due to being provided with buffer unit in SSD, host equipment real time readouts according to when can directly read The content in flash memory is taken, data to be written can be write in the buffer unit of internal storage location when writing data, and in buffer unit In cache partitions be then written to flash chip when being filled with, realize host equipment to the real-time read-writes of SSD.

Further, above-mentioned tool is in the solid state hard disc of real-time read or write speed：Described memory cell includes one group of sudden strain of a muscle Deposit chip.Described control unit includes main control chip and one group of flash memory management chip, described flash memory management chip respectively with Main control chip is connected with flash chip.In practice, main control chip can be directly installed in host equipment, to reduce SSD's Volume.

Below with reference to drawings and examples, the utility model is described in detail.

Brief description of the drawings

Fig. 1 is the solid state hard disc structured flowchart of the utility model embodiment 1.

Fig. 2 is the solid state hard disc structured flowchart of the utility model embodiment 2.

Embodiment

Embodiment 1, the present embodiment are a kind of solid state hard discs, and the solid state hard disc has the speed read and write in real time, host is set It is standby solid state hard disc such as to be read and write in real time for computer.This hard disk is realized and host equipment using SATA interface Connection.

It is the block diagram of the solid-state hard disk SSD of the present embodiment as shown in Figure 1, realizes it is the line for reading data in figure, dotted line is to write Data flow line.This solid state hard disc, including control unit and memory cell on circuit boards are set, control unit is with calculating The connected read-write of read-write i.e. computer to hard disk realized to memory cell of machine equipment, in practice, computer can be right The solid state hard disc of the present embodiment is read and write in real time.Buffer cell and bus are set mainly on solid state hard disc, and bus uses Dma bus, under dma controller control, realize the DMA of buffer unit and flash cell.Buffer unit includes in the present embodiment The cache partitions of the integral multiple of block size in flash chip；Bus is connected with host equipment, memory cell and buffer cell respectively, Under control unit control, host equipment directly reads the data in flash chip, and host equipment directly writes to buffer unit, When being filled with any cache partitions during buffer unit is deposited, flash chip is written to by bus.

This is in real time in example, for the computer of host equipment, it is possible to achieve the real-time read-write to solid state hard disc, reading when The content that flash memory is directly read by the control unit in solid state hard disc is waited, because the content reading speed of flash memory is very fast, therefore Real-time reading has no problem in itself.When computer writes hard disk, data can be first written in caching, caching is using a kind of RAM, access speed are very fast, it is possible to achieve data are write in real time, can be using DMA's after subregion one by one is write completely in the buffer Mode no write de-lay realizes for computer into flash chip and writes data in real time.

Embodiment 2, as shown in Fig. 2 the present embodiment and the main distinction of embodiment 1 are the solid state hard discs in the present embodiment Control unit on circuit board is made up of main control chip and one group of flash memory management chip, and both chips commercially have at present The product of technology maturation, every piece of flash memory management chip can manage one piece or several pieces of flash chips, main control chip can be direct It is arranged on the pcb board of solid state hard disc, can also be arranged on host equipment, realize the control to each flash memory management chip, dodges Managing chip is deposited to be arranged on the pcb board of solid state hard disc.

Claims (3)

1. a kind of solid state hard disc having in real-time read or write speed, including control unit and memory cell on circuit boards is set, Described control unit is connected with host equipment realizes read-write to memory cell；It is characterized in that：Also include buffer unit and Bus, described buffer unit include the cache partitions of the integral multiple of block size in memory cell；Described bus respectively with place Main equipment, memory cell are connected with buffer cell, and under described control unit control, host equipment directly reads described deposit The data of storage unit, host equipment directly write to described buffer unit, and any cache partitions in buffer unit is deposited are deposited Man Shi, described memory cell is written to by bus；Under dma controller control, buffer unit and flash cell are realized DMA。

2. tool according to claim 1 is in the solid state hard disc of real-time read or write speed, it is characterised in that：Described memory cell Including one group of flash chip.

3. tool according to claim 1 or 2 is in the solid state hard disc of real-time read or write speed, it is characterised in that：Described control Unit includes main control chip and one group of flash memory management chip, described flash memory management chip respectively with main control chip and flash chip It is connected.