WO2015113319A1

WO2015113319A1 - Device having storage function

Info

Publication number: WO2015113319A1
Application number: PCT/CN2014/073457
Authority: WO
Inventors: 沈晔晖; 马庆容; 倪成峰; 刘岐; 周云超; 满佳喜; 丁知民
Original assignee: 上海复旦微电子集团股份有限公司
Priority date: 2014-01-28
Filing date: 2014-03-14
Publication date: 2015-08-06
Also published as: CN104809420A; CN104809420B

Abstract

The present invention relates to a device having a storage function, the device comprising: a first storage region adapted to store general data; a second storage region adapted to store label data; a contact interface adapted to interact with an external device; a non-contact interface adapted to interact with the external device; a system configuration region adapted to store system configuration data, the system configuration data comprising storage region access mode setting information; a processor adapted to control the contact interface to access the first storage region or the second storage region according to the storage region access mode setting information when the contact interface receives an instruction from the external device; the processor is also adapted to control the non-contact interface to access the first storage region or the second storage region according to the type of instruction received from the external device. The present invention can simultaneously access the data of different data formats stored in the device.

Description

Device with storage function

The present application claims priority to Chinese Patent Application No. 201410042669.7, the entire disclosure of which is hereby incorporated by reference in its entirety in its entirety in its entirety in

Technical field

The present invention relates to the field of communications, and in particular, to a device having a storage function.

Background technique

The memory-capable device includes a memory and a host controller thereof. The conventional memory includes: a static random access memory (SRAM); a dynamic random access memory (DRAM); an electrically erasable programmable Electrically Erasable Programmable Read Only Memory (EEPROM); and, non-volatile flash memory (eg, NOR Flash and NAND Flash). These memories use different memory technologies and have different bus interfaces and memory characteristics. However, their common feature is that they are connected to the main controller via an interface that is directly electrically connected, that is, a contact interface, and data is read or stored through the contact interface. With the development of Radio Frequency Identification (RFID), RFID is also widely used in different RF bands such as LF, HF, UHF, etc. Among them: LF stands for low frequency radio frequency, about 125KHz; HF stands for high frequency radio frequency, At around 13.56 MHz; UHF stands for UHF RF, in the 860 to 960 MHz range. The RF reader reads or stores the data stored in the RF tag through the RF interface, that is, the non-contact interface. The RF tag generally uses an EEPROM type memory. For the memory of the contact interface, if data needs to be exchanged, the wired connection between the interfaces must be performed by means of PCB soldering or cable connection. Therefore, it is generally impossible to directly exchange data with the outside world in the whole device, generally through the main control. The interaction between the devices realizes the exchange of data with the outside world; and for the radio frequency tag of the contactless interface, since the data exchange must be performed by the card reader, there is no internal In the whole device of the RF reader, the RF tag cannot exchange data with the host controller of the device. In order to solve this problem, in recent years, some manufacturers have introduced a memory-capable device with an EEPROM memory device with a contact interface and a contactless interface, such as STM M24LR64 and the dual interface mentioned in the NXP 200780030172.1 patent. Memory. These dual-interface memory devices can access the entire storage space through a contact interface, such as an IIC interface, or a contactless interface, such as the IS015693 HF RF interface, and can be set according to the permission settings, only the area accessible by the contact interface, only non- The area that the contact interface can access, or the area that both interfaces can access. Therefore, data exchange between the whole device and the external RF reader can be realized at a low cost. In the existing dual interface device approach, the logical mapping of the memory space is - corresponding, ie, as M24LR64, the 64kbit EEPROM space addressed by the contact interface is identical to the 64kbit EEPROM addressed by the contactless interface. This feature makes the existing dual-interface devices, when the contact interface and the contactless interface have their own specifications for the data format, can not take into account the simultaneous operation of the two interfaces. For example, in a Bluetooth audio transmission device, the EEPROM memory external to the main chip mainly stores the program code of the transmission module. After power-on, the main chip starts from the lowest address and loads the code in the EEPROM memory into the main chip. The SRAM, and run the program code, thus requires that the data format in the EEPROM memory must conform to the code format requirements of the main chip. When this Bluetooth audio transmission device also supports the Bluetooth pairing function through NFC, if the same EEPROM memory is used to implement the NFC Type 2 tag function, the data format in the dual interface EEPROM memory must conform to the near field communication tag data format. Definition. It can be seen that in the existing solution, the data of the system customized data format and the simultaneous storage of the standardized near field communication tag data format data cannot be completed through one dual interface memory.

Summary of the invention

The technical problem solved by the technical solution of the present invention is to solve the simultaneous access of data of different data formats stored in a device having a storage function. In order to solve the above technical problem, the technical solution of the present invention provides a device having a storage function, comprising: a first storage area, adapted to store general data; a second storage area adapted to store tag data; a contact interface adapted to interact with an external device; a contactless interface adapted to interact with an external device; a system configuration area adapted to store system configuration data, the system The configuration data includes storage area access mode setting information, and the processor is adapted to control the contact interface access according to the storage area access mode setting information when the contact interface receives an instruction from an external device. a storage area or a second storage area; further adapted to, when the non-contact interface receives an instruction from an external device, control the contactless interface to access the first storage area or the second storage area according to the type of the instruction . Optionally, the storage area access mode setting information includes a correspondence between the instruction type and the storage area; the processor includes: a first processing subunit, and the instruction is configured to be the first instruction type Responding to, and controlling access by the contact interface to the first storage area; adapted to respond when the instruction from the external device is the second instruction type, and controlling the contact interface to the second Access to the storage area. Optionally, the storage area access mode setting information includes a correspondence between an address range and a storage area; the processor includes: a first processing subunit, and is adapted to be a target address carried by the instruction from the external device. Responding to the first address range and controlling access by the contact interface to the first storage area; adapted to respond and control when the target address carried by the instruction from the external device is in the second address range Access by the contact interface to the second storage area. Optionally, the mirroring area of the second storage area is included in the first storage area; the storage area access mode setting information includes a direction of the mirroring address; The processor includes: a first processing subunit, configured to respond when the target address carried by the instruction from the external device is in an address range of the mirrored area, and control the contact based on the pointing of the mirrored address The interface accesses the mirror area of the first storage area to implement access to the second storage area. Optionally, the processor includes: a first processing subunit, configured to control the non-contact interface to access the first storage area when the instruction conforms to the first type of specification; And a unit, configured to control the non-contact interface to access the second storage area when the instruction conforms to the second type of specification. Optionally, the access of the contactless interface is in accordance with the IS014443 or IS015693 communication protocol, the first type of specification is a private instruction, and the second type of specification is an NFC TYPE2 TAG instruction. Optionally, the processor further includes: an interface arbitration subunit, configured to determine a priority of the received instruction of the contact interface and the contactless interface, and strobe the processor according to the priority The contact interface or the link of the contactless interface. Optionally, the device having the storage function further includes: a protection bit area; the protection bit area is adapted to store configuration data of the protection bit, and the processor further includes: a read/write protection unit, adapted to be according to the protection The bit configuration data performs rights management for access to the storage bits in the first storage area or the second storage area. Optionally, the processor further includes: a password protection unit, configured to perform password protection on the configuration data rewriting of the system configuration area and the protection bit area. Optionally, the device having a storage function further includes: an antenna adapted to sense an electromagnetic signal in the non-contact field, and when the electromagnetic signal is the instruction from the external device, the contactless interface receives the Electromagnetic signal. Optionally, the device having a storage function further includes: a main controller, a power management unit, and a first output pin; the power management unit is adapted to receive, when the contactless interface receives an instruction from an external device Triggered, logically processing the instruction, and generating a field detection signal and a power signal; the first output pin is adapted to output the field detection signal to the main controller to wake up the main controller. Optionally, the device having a storage function further includes: a second output pin; the second output pin is adapted to be when the processor processes the non-contact interface to receive an instruction from an external device, A prompt signal is output to the main controller. Optionally, the prompting signal is a busy information of the contactless interface and the processor channel or access information of the second storage area of the first storage area based on the contactless interface. The beneficial effects of the technical solution of the present invention include at least: the device with the storage function proposed by the technical solution of the present invention can implement general data and standardized TAG of the system customized data format in the memory with both the contact interface and the contactless interface. Coexistence of tag data in the tag data format, and simultaneous access to the storage data of the above different formats through the contact interface and the contactless interface, greatly improving the interaction capability between the existing storage device and the external device, and further The amount of memory of the whole device reduces the difficulty of production configuration. In addition, the technical solution of the present invention can also flexibly define the capacity of the tag data stored in the memory by configuring the contact interface or the non-contact interface, which greatly enriches the function of the dual-interface data exchange of the whole device. The technical solution of the present invention manages the access mode of the storage area by adding a flexible configuration system configuration area, and while retaining the original access and non-contact interface to access the memory, the contact interface is specially configured to store different data formats. Simultaneous access to the storage area of data. The technical solution of the present invention adds a storage area for storing tag data on the storage area of the conventional storage device, which is different from the prior art radio frequency tag, and the second storage area of the technical solution of the present invention A domain can be accessed not only through a contactless interface, but also through a contact interface. Accessing the second storage area through the contact interface, and implementing the simultaneous method of the contact interface to the first storage area and the second storage area is difficult: the logical mapping of the storage space is one-to-one correspondence, and the first storage area The storage space of the storage area and the storage area of the second storage area are correspondingly consistent with each other. When the contact interface can also access the second storage area, there is an addressing problem of the storage area. The technical solution of the present invention also solves this problem by setting the configuration data of the storage area access mode. The present invention realizes access of the tag data to the tag data while the device accesses the tag data through the contactless interface without changing the technical solution of the present invention. In an optional solution, the storage area access mode is defined by setting a correspondence between the instruction type and the storage area in the external instruction by setting the contact interface: under the configuration definition, adopting the original contact interface protocol, However, the second storage area is accessed by a new instruction different from the original contact interface instruction; and the first storage area is accessed by using the original contact interface instruction. The original contact interface instruction and the new instruction different from the original contact interface instruction establish the correspondence between the instruction type and the storage area, and solve the problem of addressing the storage area by the contact interface access instruction. In another implementation, the storage area access mode is defined by setting a correspondence between the address range and the storage area in the external command by setting the contact interface: under the configuration definition, adopting the original contact interface protocol, However, the second storage area is accessed by a different address range different from the storage space address (corresponding to the first storage area) in the original data storage; and the first storage area is accessed by using the storage space address in the original data storage. The correspondence between the address range and the storage area is established by using the storage space address in the original data storage and the different address ranges different from the storage space address in the original data storage, thereby solving the problem of addressing the storage area by the contact interface access instruction. In another implementation, the mirroring area of the second storage area is added to the first storage area, and the pointing of the mirroring address is defined in the storage area access mode setting information, by using the first storage area. Accessing the mirrored area, realizing access to the second storage area: in the case of conforming to the original contact interface protocol and the original contact interface instruction, directly performing data on the second storage area based on the mirrored area by the addressing range in the first storage area Read and write operations, and through the configurable address of the mirrored area mapping address, flexibly adjust the mirrored logical address of the label data in the first storage area, satisfy the coexistence of the label data and the original general data, and perform label data and the original universal data. Visit at the same time. The device of the technical solution of the present invention uses an access function of the data storage access function and the operation instruction of the non-contact interface tag data to the second storage area, and is different from the non-contact interface tag data operation instruction. A proprietary non-contact instruction of the instruction type that implements the function of the non-contact interface to read and write the first storage area. In an alternative, the device of the technical solution of the present invention further includes an interface arbitration subunit, and the interface arbitration subunit can control the operation authority and priority of the contact interface and the contactless interface. The device of the technical solution of the present invention further includes a protection bit area and a read/write protection unit, and the read/write protection unit can control access rights of the first storage area and the second storage area according to the configuration data of the protection bit. The device of the technical solution of the present invention further includes a password protection unit, and the password protection unit can perform password protection on the configuration data rewriting of the system configuration area and the protection bit area, thereby improving device system security.

DRAWINGS

1 is a schematic structural diagram of a device having a storage function according to the technical solution of the present invention; FIG. 2 is a schematic diagram of a first specific structure of a device having a storage function according to the technical solution of the present invention; FIG. 4 is a schematic diagram of a third specific structure of a device having a memory function according to the technical solution of the present invention; FIG. 5 is a fourth specific embodiment of a device having a memory function according to the technical solution of the present invention; FIG. 6 is a schematic diagram of a fifth specific structure of a device having a storage function according to the technical solution of the present invention; FIG. 7 is a schematic diagram of an access flow based on an instruction extension of a device having a storage function according to the technical solution of the present invention; Technical Solution A schematic diagram of an access flow based on an address range extension of a device having a storage function; FIG. 9 is a flow chart showing an access flow based on an address mapping of a device having a storage function according to a technical solution of the present invention; FIG. 10 is a schematic diagram of signal flow in a device access process with a storage function according to the technical solution of the present invention; FIG. 11 is a schematic diagram of a sixth specific structure of a device having a storage function according to the technical solution of the present invention; A schematic diagram of a seventh specific structure of a device having a memory function.

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention, but the invention may be practiced otherwise than as specifically described herein. The technical solution of the present invention provides a device s having a storage function as shown in FIG. 1, comprising: a first storage area (also referred to as a Data Block) 1 , suitable for storing general data; and a second storage area (also referred to as a Tag Block) 2, suitable for storing tag data. The storage area has data storage capability; the storage medium constituting the storage area may be a semiconductor device or a magnetic material. The smallest storage unit of the storage area may be a bistable semiconductor circuit or a CMOS transistor or a magnetic material storage element that stores a binary code. A storage unit is composed of a plurality of storage units, and one or more storage units constitute the storage area. In the present application, the second storage area 2 may be a storage area expanded based on the first storage area 1 or may be an additional setting integrated with the first storage area 1 except the first storage area 1. In the storage area, the default relationship between the first storage area 10 and the second storage area 11 is the former, and the first storage area 1 and the second storage area 2 can be regarded as different storage areas in the same memory. The first storage area 1 is configured to store general data, and the second storage area 2 Used to store tag data. Tag data is generally data that is written by an external device and accessed by other external devices, based on the radio frequency tag. The general data is written by the internal controller of the system where the external device or device s is located and can be freely read and written by devices other than the memory. In the present application, the general data is data other than the tag data. The general data stored in the first storage area 1 and the tag data stored in the second storage area 2 have independence of data content. For example, the device s having the storage function proposed by the present invention is based on a conventional serial non-volatile memory (NVM), and the first storage area of the conventional serial non-volatile memory is the first storage area 1 and its storage Generic data having an NVM data format, the second storage area of the conventional serial non-volatile memory is the second storage area 2, which stores tag data having a format different from the NVM data format, and the storage format of the tag data is based on the radio frequency tag , can refer to the definition of the near field communication tag data format. With continued reference to FIG. 1, the device s having the storage function further includes: a contact interface (also referred to as a Contact Interface) 3, which is adapted to interact with an external device; a contactless interface (also as an RF Rectifier and Interface) 4, suitable Interact with external devices. The contact interface 3 may be a contact serial data interface corresponding to the memory type (eg, corresponding EEPROM, may be an I2C interface, and the corresponding FLASH may be an SPI interface), and the non-contact interface 4 is also corresponding to the memory. It is a non-contact interface based on the specification of the specific communication protocol (such as IS014443, IS015693, etc.) added by the memory based on the contact interface 3, and can also be regarded as a radio frequency interface. In the present application, the contact interface 3 can realize simultaneous access to the first storage area 1 and the second storage area 2 in a contact manner, and the contactless interface 4 can realize the pair of the first storage area 1 and the second storage area 2 in a contactless manner. Simultaneous access. Based on the above analysis, it can be considered that the memory of the device s having the storage function of the present application can be regarded as being formed by expanding a storage area for storing tag data on the basis of the original data memory of the NVM data memory chip. Different from the conventional radio frequency label, the conventional radio frequency label can only read and write access to the storage area in the radio frequency label through the radio frequency interface. The application can perform the label data of the second storage area 2 based on the radio frequency interface or other non-contact interface. Access, also based on contact interface access Tag data of the second storage area 2. In the definition of the first storage area 1 and the second storage area 2, since the logical mapping of the storage area is - corresponding, for example, for the M24LR64 memory, the 64kbit EEPROM storage area addressed by the contact interface is non-contact The 64kbit EEPROM memory area addressed by the interface is consistent. In the prior art, since the contact interface and the contactless interface have respective specifications for the data format, in the case where the contact interface and the contactless interface work separately (ie, the two interfaces do not work simultaneously), the contact interface Addressing to the first memory area according to its addressing characteristics, the contactless interface is addressed to the second memory area according to its addressing characteristics, and the contact interface cannot address the second memory area, and the contactless interface cannot Addressing the first storage area. In the present application, the contact interface 3 can access the first storage area 1 or the second storage area 2, and can be implemented by referring to the following technical content: the contact interface 3 pairs the first storage area 1 and the The simultaneous access of the second storage area 2, the first problem to be solved is the addressing problem. With continued reference to FIG. 1, the device s having the storage function further includes: a system configuration area (also referred to as a System Block) 5; and, a processor (also referred to as a Digital Block) 6. The system configuration area 5 is adapted to store system configuration data, and the system configuration data includes storage area access mode setting information. The storage area access mode setting information actually sets the correspondence relationship between the access command and the addressing mode of the external device received by the touch interface 3. The addressing mode described in the present application mainly refers to extending the addressing range of the first storage area 1 based on the original first storage area 1, and the extension of the addressing range includes an extension of the access instruction and an address of the storage area. The extension of the scope and the expansion of the association relationship with the storage area itself. In the extended setting manner of the access instruction, the storage area access mode setting information includes: an instruction type; a correspondence relationship between the instruction type and the storage area. Corresponding to the setting of the access mode of the storage area, the contact interface 3 receives the access instruction (contact There are at least two modes of the serial interface instruction. Different contact interface instructions correspond to different storage areas. For example, for the first contact interface instruction, it corresponds to the first storage area 1 and the address carried by the instruction. An address range pointing to the first storage area 1 corresponds to the second storage area 2, and the address carried by the instruction points to the address range of the second storage area 2. In the setting manner of the extension of the storage area address range, the storage area access mode setting information includes: an address range; a correspondence relationship between the address range and the storage area. The address range includes an extension of the original first address range and the first address range; wherein the first address range corresponds to the first storage area 1, and the extended portion of the first address range corresponds to the second storage area 2. Corresponding to the setting of the access mode of the storage area, the contact interface 3 may receive only one type of access command (contact serial interface command), and may adopt different modes for the first storage area 1 and the second storage area 2. The address range mode, that is, the first storage area 1 corresponds to the original first address range, and the second storage area 2 corresponds to the extended part of the first address range, so that the access instruction received by the contact interface 3 can be mapped to different storage. The area, the contact interface 3 can thus simultaneously access the first storage area 1 and the second storage area 2. In the extended setting manner of the association relationship between the storage area itself, the storage area access mode setting information includes: an address range, including a mirrored address; a correspondence between the address range and the storage area, including the pointing of the mirrored address . Corresponding to the setting of the access mode of the storage area, the command received by the contact interface 3 only needs to be addressed according to its original instruction. The address range is corresponding to the first storage area, and includes a storage address and a mirrored address, where the storage address corresponds to a storage location of the universal data, and the mirrored address is pointed to by the mirrored address. Storage area. The difference is that the pointing of the mirroring address is directed to the second storage area by corresponding to the first storage area. In this case, according to the setting of the access mode of the storage area, the first storage area 1 Inside is a mirrored area (Tag Mirror ) 10, the general-purpose data is stored in a storage area other than the mirrored area 10, and the pointing of the mirrored address is directed to the second storage area 2 by corresponding to the mirrored area 10. In this case, the access to the second storage area 2 is the access to the mirrored area 10. In the present application, the contactless interface 4 can access the first storage area 1 or the second storage area 2, and can be implemented by referring to the following technical content: the contactless interface 4 pairs the first storage area 1 Simultaneous access with the second storage area 2 mainly involves access problems to data stored in different data formats in the first storage area 1 and the second storage area 2. At this time, the corresponding relationship between the instruction type of the instruction received by the contactless interface 4 and the storage area may be set to discriminate the storage area pointed by the instruction: for example, the general data in the first storage area 1 The storage format is the NVM data format, and the storage format of the tag data in the second storage area 2 is the near field communication tag data format; since the access of the contactless interface 4 follows the IS014443 or IS015693 communication protocol, at this time, if the contactless interface 4 The received instruction format is a private instruction, and the general data in the first storage area 1 can be directly read based on the instruction; if the communication specification of the instruction received by the contactless interface 4 satisfies the NFC TYPE2 TAG instruction, The instruction directly reads the tag data in the second storage area 2. The private instruction is based on a custom data format that operates a general data area (including the first storage area and a system configuration area), the NFC TYPE2 TAG instruction is based on a near field communication tag data format and is operable to operate a tag data area (including Second storage area). Based on the above, the control access to the contact interface 3 and the contactless interface 4 can be realized by the processor 6: the processor 6 is adapted to receive the instruction from the external device when the contact interface 3 receives the instruction The storage area access mode setting information controls the touch interface 3 to access the first storage area or the second storage area; the processor 6 is further adapted to, when the contactless interface 4 receives an instruction from an external device, according to the instruction The type controls the contactless interface 4 to access the first storage area or the second storage area. Based on the above-described device having a memory function, an embodiment of the technical solution of the present invention, as shown in FIG. 2, is a dual interface memory having a tag function. In Figure 2, the memory si includes: The first storage area 1, the second storage area 2, the contact interface 3, the contactless interface 4, the system configuration area 5, and the processor 6. The storage area access mode setting information stored in the system configuration area 5 of the embodiment supports extension of the access command and extension of the storage area address range. Therefore, the first storage area 1 does not have the mirror area 10 as in the first storage area 1, but the second storage area 2, the contact interface 3, the contactless interface 4, the system configuration area 5, and the processor 6 are defined. Same device s. With reference to FIG. 2, in this embodiment, the external device of the memory si includes a main controller C1 and a main controller C2, wherein the main controller C1 is a microcontroller, and accesses the corresponding storage area through the contact interface 3, The controller C2 is a user NFC contactless read/write master device that accesses the corresponding storage area through the contactless interface 4. The contact interface 3 is a contact serial interface, and when accessed through the contact interface 3, the main controller

C1 inputs instructions to the memory si through a connection bus that transmits Serial Datel (Serial Date2, Serial Date), and the contact interface 3 (which may be a serial interface interface circuit in a specific implementation process) receives and parses the instruction. And accessing and configuring the data by the processor 6. Based on the contact interface 3, the processor 6 can perform read and write operations on the first storage area Γ, the second storage area 2, and the system configuration area 5 of the memory si, respectively. The processor 6 can also set access rights to the read and write operations of the first storage area Γ, the second storage area 2, and the system configuration area 5 of the contact interface 3. In the memory si, if the extension of the access instruction is implemented by the corresponding main controller C1, the memory si is correspondingly set to use different contact strings for receiving data access to the first storage area 1 and the second storage area 2. The mode of the line interface instruction, and the corresponding setting of the instruction type and the correspondence relationship between the instruction type and the storage area are performed in the system configuration area 5. At this time, when the main controller C1 accesses the memory si through the contact interface 3, the main controller C1 can respectively perform the first storage area 1, or the second storage area 2 through different contact interface commands. Write and read operations. The memory si operates in the same mode as the conventional NVM memory, and the operation of the touch interface 3 on the second storage area 2 is equivalent to the conventional NVM memory, that is, similar to the operation of the first storage area 1, However, access to the second storage area 2 requires the use of an extended instruction, that is, access to the second storage area 2 is only possible based on the extended instruction. If It is expected that in the non-contact mode, the tag function is used through the contact interface 3, and the data written by the main controller C1 to the second storage area 2 needs to meet the format and data requirements of the NFC TYPE2 TAG, and the contact is implemented based on the extended instruction. Interface 3 access to tag data. In the memory si, if the extension of the instruction address range is implemented by the corresponding main controller C1, the memory si adopts a mode of different address ranges for the first storage area 1 and the second storage area 2, and is performed in the system configuration area 5. Corresponding setting, wherein when the address range in the instruction is the original first address range, corresponding to the first storage area 1, the address range in the instruction is an extended part of the first address range, and then to the second storage area 2 . At this time, when the contact interface 3 is accessed, the main controller C1 can directly write the first storage area Γ and the second storage area 2 with different target addresses through the instructions transmitted by the same contact interface 3. Read operation. The memory si operates in the same mode as the conventional NVM memory, and the operation of the contact interface 3 for the first memory area 1, is equivalent to the conventional NVM memory, but an extended address range is used. If it is desired to use the tag function through the contact interface 3 in the non-contact mode, the data written by the main controller C1 to the second storage area 2 needs to satisfy the format and data requirements of the NFC TYPE2 TAG. With continued reference to FIG. 2, the memory si of this embodiment further includes: an antenna 7 adapted to sense an electromagnetic signal in the non-contact field, and when the electromagnetic signal is the instruction from the external device, the contactless interface 7 receives the Electromagnetic signal. The main controller C2 is provided with an antenna C20. When access is made based on the non-contact interface 4, the main controller C2 communicates with the non-contact interface 4 via a wireless signal of a non-contact field between the antenna C20 and the antenna 7. The contactless interface 4 may specifically be a radio frequency interface interface circuit that modulates and demodulates the effective electromagnetic signal received by the antenna 7 and conforms to the IS014443 or IS015693 communication protocol. The contactless interface 4 directly uses the instruction that satisfies the private instruction specification for the read and write operations of the first storage area 1, and the contactless interface 4 and the processor 6 are also adapted to receive the label instruction conforming to the NFC TYPE2 TAG specification. And reading and writing the second storage area 2 directly based on the label instruction. At this time, the operation of the second storage area 2 conforms to the requirements of the NDEF (NFC Data Exchange Format) technical specification. Based on the memory sl, the present application further provides a storage device s2 as shown in FIG. 3, including the memory s1 of FIG. 2 and the above-mentioned main controller C1, and the main controller C2 is an external user equipment. The application also provides a memory s3 as shown in FIG. 4, which is also a dual interface memory with a tag function. In FIG. 4, the memory s3 includes: a first storage area 1, a second storage area 2, a contact interface 3, a contactless interface 4, a system configuration area 5, and a processor 6. The storage area access mode setting information stored in the system configuration area 5 of the embodiment supports extension of the access instruction, extension of the storage area address range, and extension of the association relationship of the storage area itself, and the first storage area. 1. The second storage area 2, the contact interface 3, the contactless interface 4, the system configuration area 5, and the processor 6 are defined in the same manner as the device s. With reference to FIG. 4, in this embodiment, the external device of the memory s3 includes a main controller C1 and a main controller C2, wherein the main controller C1 is a microcontroller, and accesses the corresponding storage area through the contact interface 3. The main controller C2 is a user NFC contactless read/write master device, which accesses the corresponding storage area through the contactless interface 4. The main controller C1 transmits the contact serial data (Serial Datel, Serial Date2, ...,

Serial Clk) inputs an instruction to the memory sl, and performs access and configuration operations on the data in the storage area (the first storage area 1, the second storage area 2, and the system configuration area 5) based on the contact interface 3 and the processor 6. . The processor 6 can also set access rights to the read and write operations of the first storage area Γ, the second storage area 2, and the system configuration area 5 of the contact interface 3. The above process in the memory s3 is similar to the memory sl, except that the main controller C1 can also configure the mapping between the mirrored area 10 and the second storage area 2 in the first storage area 1 based on the system configuration area 5. Only the access command of the original main controller C1 is used to access the storage area. That is, based on this mapping configuration, the main controller C1 does not need to expand its access instruction or expand its access address. When the mapping configuration in the system configuration area 5 is enabled, the processor 6 establishes the mirroring area 10 of the second storage area 2 in the first storage area 1 according to the pointing of the mirroring address configured in the system configuration area 5, which may be specifically A tag address control circuit 60 is provided in the processor 6, using tag address control The circuit 60 is responsive to the enabling of the mapping configuration and establishes the mirrored area 10 within the first storage area 1. The main controller C1 can directly access the general data of the first storage area 1 and the tag data of the second storage area 2 according to the address range corresponding to the first storage area (including the storage address and the mirror address), where The mirroring address accesses the mirroring area 10, and the access to the second storage area 2 is implemented by performing read and write operations on the mirroring area 10. At this time, the operation of the touch interface 3 on the second storage area 2 is equivalent to the conventional NVM memory operation. If it is desired to access the tag data using the touch interface 3 in the non-contact mode, the main controller C1, the data written to the mirror area 10 needs to meet the format and data requirements of the NFC TYPE2 TAG. Other relevant content of the memory s3 can be referred to the relevant description of the memory si. Based on the memory s3, the present application further provides a storage device s4 as shown in FIG. 5, including the memory s3 of FIG. 4 and the above-mentioned main controller C1, and the main controller C2 is an external user equipment. Based on the above-mentioned devices 8, si to s4 having a memory function, the structure of the processor 6 is further explained below: Based on the structure of the memory s4, in the memory s5 shown in FIG. 6, in order to realize contact data access, the processor 6, including: conventional memory read and write control circuit (NVM R / W ctrl) 61. When the contact interface 3 acquires the access information and accesses the storage area according to the access authority of the processor 6, the access operation and the configuration operation of the storage area data are completed by the conventional memory read/write control circuit 61. This is applicable to the access of the first storage area 1 (1), the second storage area 2, and the system configuration area 5. In order to achieve contactless data access, based on the contactless interface 4, the processor 6 includes: a first processing subunit and a second processing subunit. The first processing subunit is adapted to control the contactless interface 4 to access the first storage area 1 ( Γ ) when the instruction information conforms to the first type of specification. The instructions conforming to the first type of specification satisfy the definition of the private instruction, and the specific implementation circuit of the first processing subunit may be the conventional memory read and write control circuit 61. Not only access to the first storage area 1 ( Γ ), but also through non-connection The touch interface 4 and the conventional memory read/write control circuit 61 can implement contact access to the system configuration area 5 in the same access mode. The second processing subunit is adapted to control the contactless interface 4 to access the second storage area 2 when the instruction information conforms to the second type of specification. The specific implementation circuit of the first processing subunit may be a near field data exchange read/write control circuit (NDEF NVM RAV Ctrl ) 62. Based on the contactless interface 4 and the near field data exchange read/write control circuit 62, the memory s5 can accept an access instruction conforming to the NFC TYPE2 TAG specification and directly perform a write operation on the second storage area 2. In order to solve the access conflict of the memory dual interface to the access storage area, the processor 6 further includes: an interface arbitration sub-unit 63, the interface arbitration sub-unit 63 is adapted to the contact interface 3 and the contactless interface 4 The priority of the received command is determined, and the processor 6 and the link of the contact interface 3 or the contactless interface 4 are gated according to the priority. In order to implement the access control of the memory to the storage area, the processor 6 further includes: a read and write protection unit (Write Protect) 64, corresponding to the read/write protection unit 64, and a protection bit area 8 may be added in the storage area of the memory s5. The configuration data for the Protect Bit (Protect Bit). In the memory s5, the protection bit area 8 is directly disposed in the system configuration area 5. The read/write protection unit 64 is adapted to perform rights management on access of the storage bits in the storage area according to the configuration data of the protection bits. The storage area includes a first storage area 1 (1), a second storage area 2, and a system configuration area 5. More preferably, the processor 6 can also password protect the rewriting of the protection bit area 8 or the system system configuration area 5. The processor 6 further includes: a password protection unit (Password Protect) 65. The password protection unit 65 is adapted to password protect the configuration data rewriting of the system configuration area 5 (including the protection bit area 8). In the memory s5: for the contact access process, after the instruction of the contact interface 3 is parsed, the interface arbitration subunit

63 prioritizes the contact instruction, at this time, the processor 6 is turned on, and the link with the contact interface 3 is turned off. The processor 6, the link with the contactless interface 4, and the read/write protection unit 64 controls the instruction according to the configuration data of the protection bit area 8, excluding the instruction without the access authority, and causes the conventional memory read/write control circuit 61. Data access operations and configuration operations are completed based on instructions with access rights. For the contactless access process, after the instruction of the contactless interface 4 is parsed, the interface arbitration sub-unit 63 preferentially processes the contactless instruction. At this time, the processor 6 is turned on, and the link with the contactless interface 4 is turned off. 6, the link with the contact interface 3, and the read/write protection unit 64 controls the instruction according to the configuration data of the protection bit area 8, excluding the instruction without the access authority, so that the conventional memory read/write control circuit 61 is based on The general-purpose instruction of the access authority (which satisfies the definition of the private instruction) completes the access operation and configuration operation on the general-purpose data or the configuration data, so that the near-field data exchange read-write control circuit 62 is based on the tag instruction having the access authority (in accordance with NFC TYPE2) TAG Protocol Specification) Completes access and configuration operations for tag data. Of course, the configuration of the processor 6 described above is applicable to the devices s, si to s4 having the storage function. The above structure of the processor 6, can also be adapted to be selectively applicable. Based on the structure of the memory s5 shown in FIG. 6, referring to FIG. 7, the present application provides a flow for accessing the storage area using an extension manner of the access instruction: When the access starts, the interface arbitration sub-unit 63 first determines Operation authority of the interface. If the contact interface 3 has priority, when the contact interface 3 receives the access instruction and the access address information, the contact access path is opened, and the contactless access path is closed. The contact interface 3 parses the received access command and the access address information, and determines whether the accessed general data (the first storage area 1 or the system configuration area 5) or the tag data (the second storage area 2) is accessed according to the extended instruction. If the extended instruction corresponds to the general data of the first storage area, and the access authority has the access authority according to the read/write protection unit 64, the NVM data format is used to read and write the response to the storage area corresponding to the address; The tag data of the second storage area, and the read/write protection unit 64 has the access authority according to the instruction, and then reads and writes the storage area corresponding to the address according to the access address using the near field communication data format. If the contactless interface 4 has priority, when the contactless interface 4 receives the access command and the access address information, the contactless access path is opened, and the contact access path is closed. The contactless interface 4 parses the received access command and access address information, and determines access according to the type of the command. Is the general data (the first storage area 1 or the system configuration area 5) or the label data (the second storage area 2); if the instruction type corresponds to the first storage area, and the instruction is provided according to the read/write protection unit 64, Then, the NVM data format is used to read and write responses to the storage area corresponding to the address according to the access address; if the instruction type corresponds to the tag data of the second storage area, and the access authority is provided according to the read/write protection unit 64, the access address is used according to the access address. The near field communication data format reads and writes responses to the storage area corresponding to the address. Based on the structure of the memory s5 shown in FIG. 6, referring to FIG. 8, the present application also provides a flow for accessing the storage area by using an extension manner of the storage area address range: When the access starts, the interface arbitration subunit 63 first determines the operation authority of the interface. If the contact interface 3 has priority, when the contact interface 3 receives the access instruction and the access address information, the contact access path is opened, and the contactless access path is closed. The contact interface 3 parses the received access command and the access address information, and determines whether the accessed general data (the first storage area 1 or the system configuration area 5) or the tag data (the second storage area) is accessed according to the extended address range. 2); if the address information corresponds to the original address range, corresponding to the general data of the first storage area, if the access authority is provided according to the instruction by the read/write protection unit 64, the storage of the corresponding address is performed according to the address using the NVM data format. If the address information corresponds to the address range of the extended portion, then for the tag data of the second storage area, if the access authority is provided according to the instruction by the read/write protection unit 64, the near field communication data is used according to the access address. The format reads and writes the storage area corresponding to the address. For other access content, refer to the related discussion of the access process in Figure 7. Based on the structure of the memory s5 shown in FIG. 6, referring to FIG. 9, the present application also provides a process for accessing the storage area by using the storage area itself to expand the association relationship: When the access starts, the interface arbitrates The sub-unit 63 first determines the operation authority of the interface. If the contact interface 3 has the priority, when the contact interface 3 receives the access instruction and the access address information, the contact access path is opened, and the contactless access path is closed. The contact interface 3 parses the received access command and the access address information, and determines whether the accessed general data (the first storage area 1 or the system configuration area 5) or the mapping data (the mapping data corresponds to the mirror area 10) according to the address range. Access to the mapping data implements access to the tag data); if the address information corresponds to the first storage area The area other than the mirroring area is access to the general data. If the command is provided according to the instruction by the read/write protection unit 64, the NVM data format is used to read and write the storage area corresponding to the address according to the address; If the address information corresponds to the mirrored area of the first storage area, it is a method for label data. If the access authority is provided according to the instruction by the read/write protection unit 64, the near field communication data format is used according to the access address. The storage area is readable and writable. For other access content, refer to the related discussion of the access process in Figure 7. Based on the above access process, the present application also provides a signal flow diagram as shown in FIG. 10, which discloses a signal flow relationship in a storage device when accessing the storage device of the present application: interface arbitration subunit to contact interface or non-contact The contact interface performs priority setting and access control, which notifies the processor through the arbitration signal whether to open the processor link between the contact interface or the processor link between the contact and the contactless interface. The access information received by the contact interface includes instruction information, address information, and access data (with written information or acquired data); the control circuit of the contact interface decodes, logically controls, and enables the label mapping mode. The tag address control circuit is used to perform tag address control on the mirror address of the corresponding tag data. The above process can determine the accessed storage area and output the address and access data to the conventional memory read and write control circuit for access configuration. Before accessing the storage area, the read/write protection unit protects the data (including configuration data, general data, and tag data), and performs permission determination based on the read/write protection signal against the protection bit area of the system configuration area. When the permission is passed, the storage area (including the first storage area, the second storage area, and the system configuration area) is accessed according to the address and the information of the access data. The configuration data of the system configuration area, in particular the configuration data of the protection bit area, can be rewritten according to the above manner, but such rewriting can be specifically password-protected based on the password protection unit. At this time, not only the authority to read and write the protection signal is judged, but also the password matching verification of the password protection signal. When both of them pass, the configuration data can be rewritten based on the address and the access data at this time. The access information received by the contactless interface also includes instruction information, address information, and access data; the control circuit of the contactless interface decodes and logically controls the access information, and judges according to the type of the instruction. Break the access storage area. For the accessed storage area is the first storage area or the system configuration area, the output address and the access data are accessed to the conventional memory read/write control circuit for access configuration; for the accessed storage area is the second storage area, the output address and the access data are sent to the near field data. Exchange read and write control circuits for access configuration. Before the access to the storage area, the process of signal flow such as permission and password protection is the same as that described above, and is not described here. Based on the memory s5, the present application further provides a memory s6 as shown in FIG. 11. Unlike the memory s5, the memory s6 further includes: a power management unit (9), a first output pin 11, and a second output. Pin 12. The power management unit 9 is adapted to be triggered when the contactless interface 4 receives an active command from the autonomous controller C2 (ie, an effective electromagnetic signal obtained by the antenna 7), logically processes the command, and generates a field detection Signal and power signals. The field detection signal is output to the main controller C1 through the first output pin 11, and the main controller C1 is woken up after receiving the field detection signal, and is notified that the contactless access is in progress, the main The controller C1 monitors the contactless access performed in the storage device s6. The power signal supplies power to some of the devices involved in the contactless access process, such as the associated circuitry in the processor 6. The power management unit 9 may specifically include a power control circuit and a voltage stabilization circuit. The field detection signal may simultaneously trigger other internal and external system operations while triggering the main controller C1. When the memory device s6 is performing a contactless instruction or the contactless interface 4 is performing a contactless read/write operation on the memory area, the memory device s6 can also pass the non-contact to the main controller C1 through the second output pin 12. Information that the instruction busy or contactless interface 4 is accessing to the storage area. Based on the memory s6, a memory device s7 as shown in FIG. 12 may be provided, including: a memory s6 and a main controller C1. In an application example of the present application, the storage device is a Bluetooth device, and the Bluetooth device is applicable to audio transmission. The audio transmission module of the Bluetooth device mainly stores the program code of the transmission module in the NVM data memory external to the main chip. After power-on, the main chip loads the code in the NVM memory into the main core. The internal SRAM, and run the program code, thus requires that the data format in the NVM memory must conform to the code format requirements of the main chip. The user needs to manually search and transmit the pairing verification information through the Bluetooth manual pairing method, and encrypt and establish a Bluetooth wireless connection between the mobile device and the Bluetooth audio transmission module. In order to more easily and reliably establish the connection between the mobile device and the Bluetooth audio transmission module, the applicable Bluetooth audio transmission module is close to the mobile device integrated with the NFC TAG reader, and through the wireless connection conforming to the IS014443, IS015693 communication protocol, The Bluetooth pairing verification information containing the current Bluetooth audio transmission module in the TAG is transmitted to the mobile device for establishing a Bluetooth wireless connection between the two parties. The solution needs to add an NFC-compliant TAG tag chip in addition to the existing EEPROM data memory of the original Bluetooth audio transmission module. The personalized ID information and configuration information for Bluetooth pairing need to be written twice by the contact interface readout and the contactless interface, and the TAG file is established through the external data path. The Bluetooth device is configured based on the dual interface described in the present application, and the NFC Type 2 tag function and the Bluetooth audio transmission module program data storage function can be simultaneously implemented. The system master microcontroller (equivalent to the main controller C1) can directly write the TAG data file conforming to the NFC near field communication tag data format by directly contacting the serial interface and writing the data and programs required by the system itself. Enter TAG. The present invention has been disclosed in the preferred embodiments as described above, but it is not intended to limit the invention, and the present invention may be utilized by the method and technical contents disclosed above without departing from the spirit and scope of the invention. The technical solutions make possible changes and modifications, and therefore, the scope of protection of the technical solutions of the present invention is not deviated from the present invention.

+

Claims

Rights request

1. A device with a storage function, characterized in that it includes: a first storage area, suitable for storing general data; a second storage area, suitable for storing tag data; a contact interface, suitable for interacting with external devices; Non-contact interface, suitable for interacting with external devices; System configuration area, suitable for storing system configuration data, the system configuration data includes storage area access mode setting information; Processor, suitable for receiving data at the contact interface When receiving an instruction from an external device, the contact interface is controlled to access the first storage area or the second storage area according to the storage area access mode setting information; It is also suitable for the non-contact interface to receive an instruction from an external device. When an instruction is given, the contactless interface is controlled to access the first storage area or the second storage area according to the type of the instruction.

2. The device with storage function according to claim 1, characterized in that, the storage area access mode setting information includes the correspondence between the instruction type and the storage area; the processor includes: a first processing subunit, Suitable to respond when the instruction from the external device is the first instruction type, and control the access of the contact interface to the first storage area; Suitable to respond when the instruction from the external device is the second instruction type respond in time and control the access of the contact interface to the second storage area.

3. The device with storage function according to claim 1, wherein the storage area access mode setting information includes a correspondence between an address range and a storage area; the processor includes: a first processing subunit, Suitable to respond when the target address carried by the instruction from the external device is in the first address range, and control the access of the contact interface to the first storage area; Suitable to respond when the instruction from the external device respond when the carried target address is in the second address range, and Control access of the contact interface to the second storage area.

4. The device with storage function according to claim 1, characterized in that, the first storage area has a mirror area of the second storage area; the storage area access mode setting information includes the The pointing of the mirror address; the processor includes: a first processing subunit, adapted to respond when the target address carried by the instruction from the external device is within the address range of the mirror area, and based on the pointing of the mirror address Control the access of the contact interface to the mirror area of the first storage area to achieve access to the second storage area.

5. The device with storage function according to claim 1, characterized in that the processor includes: a first processing subunit, adapted to control the non-contact device when the instruction complies with the first type of specification. The interface accesses the first storage area; the second processing subunit is adapted to control the non-contact interface to access the second storage area when the instruction complies with the second type of specification.

6. The device with storage function according to claim 5, characterized in that: the access to the contactless interface follows the ISO14443 or ISO15693 communication protocol, the first type of specification is a private instruction, and the second type of specification It is the NFC TYPE2 TAG instruction.

7. The device with storage function according to claim 5, wherein the processor further includes: an interface arbitration subunit, adapted to prioritize the instructions received by the contact interface and the non-contact interface. A judgment is made to select a link between the processor and the contact interface or the non-contact interface according to the priority.

8. The device with storage function according to claim 5, further comprising: a protection bit area; the protection bit area is suitable for storing configuration data of the protection bit, and the processor further includes: read and write protection The unit is adapted to perform authority management on access to storage bits in the first storage area or the second storage area according to the configuration data of the protection bit.

9. The device with storage function according to claim 8, wherein the processor further includes: a password protection unit adapted to password protect the rewriting of configuration data in the system configuration area and protection bit area.

10. The device with storage function according to any one of claims 1, 5 to 9, further comprising: an antenna, adapted to sense electromagnetic signals in a non-contact field, when the electromagnetic signal is the When receiving instructions from an external device, the non-contact interface receives the electromagnetic signal.

11. The device with storage function according to claim 1, further comprising: a main controller, a power management unit and a first output pin; the power management unit is adapted to operate on the non-contact interface It is triggered when receiving an instruction from an external device, performs logical processing on the instruction, and generates a field detection signal and a power signal; the first output pin is adapted to output the field detection signal to the main controller to Wake up the main controller.

12. The device with storage function according to claim 11, further comprising: a second output pin; the second output pin is adapted to process the non-contact interface reception when the processor When receiving instructions from the external device, a prompt signal is output to the main controller.

13. The device with storage function according to claim 12, characterized in that, the prompt signal is busy information of a non-contact interface and a processor channel or a request to the first storage area based on the non-contact interface. Access information of the second storage area.

+