CN102890618B

CN102890618B - A kind of Memory Extension equipment with partition management

Info

Publication number: CN102890618B
Application number: CN201110202371.4A
Authority: CN
Inventors: 骆建军; 付建云
Original assignee: Sage Microelectronics Corp
Current assignee: Sage Microelectronics Corp
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2016-02-17
Anticipated expiration: 2031-07-19
Also published as: CN102890618A

Abstract

The invention discloses a kind of Memory Extension equipment with partition management, particularly a kind ofly can to expand capacity and the memory device of partition management, by main side store interface module (1), control module (2), form from end store interface module (3), the interface of store interface module meets the definition of memory card interface signal, partition management according to and main frame between agreement come.The present invention is extended to several memory card interfaces a host stores card interface, multiple storage cards can be accessed simultaneously, and partition management is realized to the storage card of these accesses, not only solve the limitation of main frame list memory card interface on capacity, also meet user carries out partition management actual demand to storage space, there is good applicability.

Description

A kind of Memory Extension equipment with partition management

Technical field

The invention belongs to memory device field, particularly a kind ofly can to expand capacity and the memory device of partition management.

Background technology

Utilize semiconductor technology evolves and come various storage cards, because of it have that volume is little, capacity is large, access speed is fast, interface and consensus standard, the evident characteristic such as be easy to carry about with one, receive the favor of consumers in general, become topmost External memory equipment, widely use in every field, comprise computing machine, mobile phone, digital camera, PDA, televisor, Set Top Box, printer, digital album etc., annual consumption figure reaches billions of.These storage cards comprise SD card, MiniSD card, MicroSD card, mmc card, RSMMC card, MS card, CF card etc.These storage cards, have employed the agreement of standard, comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.

Current, the equipment of these storage cards can be connected, there is the feature that common, an interface can only access a storage card simultaneously exactly, along with the development of infotech, the growth of quantity of information is explosion type, the capacity requirement of people to memory device is more and more higher, original storage card, soon because variety of problems is encountered in the too little meeting of capacity, particularly when running into and needing to carry out continuity preservation to mass data stream and information flow, if these total flows having continuity to require are beyond the max cap. of original single storage card, at this time uniquely can solution exactly original memory device be given up, change the new storage card of a more high power capacity, the use cost of people increases, and cause waste.In addition, present storage card environment for use, particularly device at host machine end, can only recognize a subregion, as hard disk, cannot can be divided into a lot of logical partition, this makes troubles to the management of storage space to user simultaneously.

If there is a kind of equipment, a host stores card interface can be extended to several memory card interfaces, multiple storage cards are received on this some memory card interface, again by host stores card interface access host, partition management can also be realized to the storage card of these accesses simultaneously, the above-mentioned variety of problems run into can be solved very easily, bring great convenience to user.

The Memory Extension equipment that the present invention realizes, can well address this problem.

Summary of the invention

The invention provides a kind of Memory Extension equipment with partition management, can expand memory capacity very easily, meet the demand that people store ever-increasing quantity of information.

A kind of Memory Extension equipment with partition management provided by the invention, by main side store interface module (1), forms from end store interface module (3), control module (2).

Main side store interface module (1), realize and the communication of main frame and data-transformation facility, the standard compliant memory card interface signal definition of physical connection between main side store interface module (1) and main process equipment, comprise SD card interface, MiniSD card interface, MicroSD card interface, mmc card interface, RSMMC card interface, MS card interface, CF card interface, communication between main side store interface module (1) and main process equipment and data transmit standard compliant storage card agreement, comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.

From end store interface module (3), realize communicating and data-transformation facility with External memory equipment, the standard compliant memory card interface signal definition of physical connection between end store interface module (3) and External memory equipment, comprise SD card interface, MiniSD card interface, MicroSD card interface, mmc card interface, RSMMC card interface, MS card interface, CF card interface, standard compliant storage card agreement is transmitted from the communication between end store interface module (3) and External memory equipment and data, comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.

Control module (2), be made up of central processing unit (21) and data buffer (22), control main side store interface module (1) with from end store interface module (3) communicate and data transmission and Method of Data Organization, realize an interface to the expansion control of multiple interface and partition management, partition management is that the agreement between basis and main frame has been come.

A kind of Memory Extension equipment with partition management provided by the invention, can be completed by the integrated circuit of single-chip, also can be completed by multiple integrated circuit combination.Can not memory function be had, also can pass through configuration store component, there is memory function.

Accompanying drawing explanation

Fig. 1 is system architecture schematic block diagram of the present invention

Fig. 2 is system architecture of the present invention electrical connection schematic block diagram

Fig. 3 is SD card interface signal definition

Fig. 4 is MiniSD card interface signal definition

Fig. 5 is MicroSD card interface signal definition

Fig. 6 is the definition of mmc card interface signal

Fig. 7 is RSMMC card interface signal definition

Fig. 8 is MS card interface signal definition

Fig. 9 is CF card interface signal definition

Specific implementation method

As shown in Figure 1 and Figure 2, a kind of Memory Extension equipment with partition management, conveniently can realize expanded function and the partition management functions of memory capacity, comprise:

From end store interface module (3), by from end store interface module 1 ~ form from end store interface module N, be connected with multiple external memory card respectively, these are from interface signal definition (as shown in Fig. 3 ~ Fig. 9) of end store interface module 1 ~ meet on the physical interface from end store interface module N memory card, undertaken communicating by memory card agreement as Master end and external memory card and to transmit with data, these agreements comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.

Main side store interface module (1), realize and the communication of main frame and data-transformation facility, main side store interface module (1) meets interface signal definition (as shown in Fig. 3 ~ Fig. 9) of memory card on the physical interface, undertaken communicating by the storage card agreement of standard as Slave end and main process equipment and to transmit with data, these agreements comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.

Control module (2), be made up of central processing unit (21) and data buffer (22), control main side store interface module (1) and transmit and Method of Data Organization from the communication between end store interface module (3) and data, realizing an interface to the expansion control of multiple interface and partition management.

Partition management is that the agreement between basis and main frame has been come.

After device power, control module (2) first judges the external memory card actual disposition connected from end store interface module (3), comprise the various parameters such as card type memory, storage card quantity, the capacity often opening storage card and data layout, wait for that main frame visits according to the mode of agreement content.

Main frame inquire present device in place after, access this equipment according to the mode of agreement content, fetch equipment configuration various parameters, show each subregion.

When main frame carries out write operation to above-mentioned a certain subregion, data are through main side store interface module (11), enter data buffer (22), the position of subregion write by central processing unit (21) according to main frame, the physical location of calculating and locator data write, control data is to corresponding the writing from end store interface module (3) of this subregion, and data, through this store interface module (3) write external memory storage, complete a write operation.

Equally, when main frame carries out read operation to above-mentioned a certain subregion, the position of subregion read by central processing unit (21) according to main frame, the physical location of the data that calculating and positioning host will read, the correspondence at control data place from end store interface module (3), data are read from the corresponding external memory storage connected from end store interface module (3) therewith, send into data buffer (22), then give main frame by main side store interface module (11), complete a read operation.

Claims

1. the Memory Extension equipment with partition management, by main side store interface module (1), form from end store interface module (3), control module (2), it is characterized in that: described expansion equipment, main side store interface module (1) is connected with the memory interface of main process equipment as Slave end, be connected with other memory devices from end store interface module (3) as Master end, control module (2) controls main side store interface module (1) and transmits and management from the data between end store interface module (3)

Described main side store interface module (1) only has one, is made up of from end store interface module (3) several from end store interface module (from end store interface module 1 ~ from end store interface module N),

Described expansion equipment, partition management is that the agreement between basis and main frame has been come,

Described expansion equipment, can be completed by the integrated circuit of single-chip, also can be completed by multiple integrated circuit combination,

Described expansion equipment, can not have memory function, also can have memory function,

Described main side store interface module (1), and the standard compliant memory card interface signal definition of the physical connection between main process equipment, comprise SD card interface, MiniSD card interface, MicroSD card interface, mmc card interface, RSMMC card interface, MS card interface, CF card interface

Described from end store interface module (3), and the standard compliant memory card interface signal definition of the physical connection between External memory equipment, comprise SD card interface, MiniSD card interface, MicroSD card interface, mmc card interface, RSMMC card interface, MS card interface, CF card interface

Described main side store interface module (1), and communication between main process equipment and data to transmit be the storage card agreement of standard, comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement,

Described from end store interface module (3), and communication between External memory equipment and Data Transport Protocol are the storage card agreements of standard, comprise SD agreement, MMC agreement, eMMC agreement, MS agreement, CF agreement.