WO2016101837A1 - 数据存储方法、存储模块和可编程逻辑器件 - Google Patents
数据存储方法、存储模块和可编程逻辑器件 Download PDFInfo
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- WO2016101837A1 WO2016101837A1 PCT/CN2015/097731 CN2015097731W WO2016101837A1 WO 2016101837 A1 WO2016101837 A1 WO 2016101837A1 CN 2015097731 W CN2015097731 W CN 2015097731W WO 2016101837 A1 WO2016101837 A1 WO 2016101837A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
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- the present invention relates to the field of integrated circuit design, and in particular, to a data storage method, a storage module, and a programmable logic device.
- Digital logic devices can be divided into two broad categories, fixed logic devices and programmable logic devices.
- the function of the fixed logic device is permanent and cannot be changed after manufacture.
- Programmable logic devices offer a wide range of combined logic, sequencing logic, and voltage characteristics to perform many different logic functions.
- field programmable gate array is a typical product of programmable logic devices.
- FPGA field programmable gate array
- Block memory is commonly used as a storage unit in FPGA devices on the market.
- a separate block RAM usually has a storage capacity of 36K bits or 18K bits, and an FPGA device has multiple Block RAM units.
- Block RAM can also be cascaded for larger storage.
- Block RAM unit has some shortcomings, mainly in: Single block RAM storage capacity is too large, and is a storage area can not be divided into blocks of independent read and write operations as a whole, when the user application instance needs At the same time, many small-capacity data storage areas are read and written.
- Each small-capacity data storage area needs to occupy one block RAM, which causes a large amount of storage space redundancy, wastes logical resources, and leads to a decrease in circuit operation speed. The consumption is increased. Especially in the face of a large number of small, small-scale, shallow depth of small-capacity data storage, it will cause huge waste of logic resources, such as peers to read 10 2K bits of data, FPGA devices need to call 10 With a block memory unit of 36K bits size, the resource utilization of each block RAM is only 5%.
- the existing block memory-based programmable logic device causes a large amount of storage space redundancy and waste of logic resources for small-capacity data storage.
- the main technical problem to be solved by the present invention is to provide a data storage method, a storage module, and a programmable logic device, which can solve the problem that the existing block memory-based programmable logic device causes a small-capacity data storage.
- the present invention provides a data storage method, which is applied to a programmable logic device, where the programmable logic device includes a plurality of storage modules, and the storage module includes a plurality of small-capacity storage units.
- the method includes the following steps:
- the capacity of the storage module is the sum of the capacities of all the storage units in the storage module
- the step of cascading the number of storage units to form a first cascading storage unit comprises: serially concatenating the number of storage units or parallel cascading to form the first Cascading storage units.
- the step of serially forming the first cascading storage unit by serially forming the number of storage units comprises:
- the step of serially forming the first cascading storage unit for the number of storage units comprises:
- bit width of the to-be-stored data is greater than the bit width of the storage unit
- the number of storage units are parallel concatenated to form the first concatenated storage unit according to increasing the bit width.
- the method further includes: enabling a storage unit that is not cascaded in the storage module, and storing, to the uncascaded storage unit, data to be stored whose number of bytes is smaller than a capacity of the storage unit .
- the method further includes: enabling one of the storage units in the storage module when the number of bytes of the data to be stored is less than a capacity of the storage unit, and The storage data is stored in the storage unit.
- the method further includes: determining, when the number of bytes of data to be stored is greater than a capacity of the storage module, determining, according to the capacity of the storage module and the number of bytes, a storage module that needs to be cascaded [0020] cascading all of the storage units in the number of storage modules;
- the step of cascading all of the storage units in the number of storage modules includes: serializing or parallelizing all of the storage units in the number of storage modules .
- the step of cascading the number of storage modules to form a second cascading storage unit comprises: serially or parallel cascading the number of storage modules to form a second cascading storage unit .
- the present invention further provides a storage module, which is applied to a programmable logic device, comprising: a first cascade storage unit; the first cascade storage unit is composed of a plurality of small capacity The storage unit is cascaded.
- the first cascading storage unit is formed by serial or parallel cascading of a plurality of small-capacity storage units.
- the first cascading storage unit is serially cascaded by a plurality of small-capacity storage units,
- the byte depth of the first cascaded memory unit is the sum of the byte depths of the plurality of memory cells.
- the first cascade storage unit is formed by parallel connection of a plurality of small-capacity storage units
- the bit width of the first cascode memory cell is a sum of bit widths of the plurality of memory cells.
- the storage module further includes: a storage unit that is not cascaded.
- the storage module further includes: a cascade output port and a storage unit output port; the cascade output port is configured to output data stored by the cascade storage unit, and the storage unit output port
- the present invention provides a programmable logic device including a second cascade storage unit, the second cascade storage unit being stored by the plurality of any one of the above Module cascading is formed.
- the second cascading storage unit is formed by serial or parallel cascading of the plurality of storage modules according to any one of the above.
- the present invention provides a data storage method, a storage module, and a programmable logic device.
- the data storage method of the present invention is applied to a programmable logic device, the programmable logic device including a plurality of memory modules, the storing
- the module includes a plurality of small-capacity storage units, and the method includes: when the number of bytes of data to be stored is greater than a capacity of the storage unit is less than or equal to a capacity of the storage module, according to the number of bytes of the data to be stored and The capacity of the storage unit determines the number of storage units that need to be cascaded; the capacity of the storage module is the sum of the capacities of all the storage units in the storage module; enabling the number of storage units in the storage module And cascading the number of storage units to form a first cascading storage unit, and storing the to-be-stored data in the first cascading storage unit; the data storage method of the present invention may be based on the size of data to be stored Adapt
- the logic resource is wasted; the method of the present invention can set the capacity of the storage module to a value matching the data size by cascading in the face of small-capacity data storage, thereby avoiding the excessive capacity of the existing programmable logic device due to the block RAM.
- the write operation since the storage module is composed of a small-capacity storage unit, the storage module has a small area and thus runs at a high speed, so that the speed of data exchange with an external circuit can be greatly increased.
- FIG. 1 is a schematic flowchart of a data storage method according to Embodiment 1 of the present invention.
- FIG. 2 is a schematic structural diagram of a storage unit according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic diagram of a byte depth and a bit width of a memory cell according to Embodiment 1 of the present invention.
- FIG. 4 is a schematic structural diagram of a first storage module according to Embodiment 1 of the present invention.
- FIG. 5 is a schematic circuit diagram of a first storage module according to Embodiment 1 of the present invention.
- FIG. 6 is a schematic structural diagram of a second storage module according to Embodiment 1 of the present invention.
- FIG. 7 is a circuit diagram of a second storage module according to Embodiment 1 of the present invention.
- FIG. 8 is a schematic structural diagram of a third storage module according to Embodiment 1 of the present invention.
- FIG. 9 is a schematic structural diagram of a fourth storage module according to Embodiment 1 of the present invention.
- FIG. 10 is a schematic structural diagram of a storage module according to Embodiment 2 of the present invention.
- FIG. 11 is a schematic flowchart of a data storage method according to Embodiment 3 of the present invention.
- FIG. 12 is a schematic structural diagram of a cascade storage unit according to Embodiment 3 of the present invention.
- FIG. 13 is a schematic structural diagram of another cascading storage unit according to Embodiment 3 of the present invention.
- FIG. 14 is a schematic structural diagram of a storage module according to Embodiment 4 of the present invention.
- FIG. 15 is a schematic structural diagram of another storage module according to Embodiment 4 of the present invention.
- FIG. 16 is a schematic structural diagram of a programmable logic device according to Embodiment 5 of the present invention.
- FIG. 17 is a schematic structural view of a memory circuit provided by the present invention.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the existing block memory-based programmable logic device causes a large amount of storage space redundancy and waste of logic resources in the storage of small-capacity data.
- This embodiment provides a data storage method, which is applied to a programmable logic device, the programmable logic device comprising a plurality of memory modules, the memory module The block includes a plurality of small-capacity storage units. As shown in FIG. 1, the method in this embodiment includes the following steps.
- Step 101 When the number of bytes of the data to be stored is greater than the capacity of the storage unit is less than or equal to the capacity of the storage module, determining the cascading according to the number of bytes of data to be stored and the capacity of the storage unit.
- the number of storage units; the capacity of the storage module is the sum of the capacities of all the storage units in the storage module.
- the size of the data to be stored in this embodiment is represented by the number of bytes, and the larger the number of bytes, the larger the data, and the smaller the smaller the byte data, the smaller the data.
- the storage unit is a small-capacity storage unit, and preferably, it may be a storage unit having a capacity of 2K bits.
- the storage module in this embodiment includes a plurality of storage units, for example, may include 4, 7, 8, ... n storage units.
- the storage module includes four storage units of 2K bits, and the capacity of the storage module is 8K bits.
- the capacity of the storage module is 8K bits.
- the programmable logic device needs to store 8K bits of data, since the number of bytes of the data is greater than the storage.
- Such a capacity is equal to the capacity of the storage module. Therefore, it can be determined according to the number of bytes and the capacity of the storage unit that four storage units need to be cascaded to obtain a storage space with a capacity of 8K bits.
- the number of storage units that need to be cascaded is less than or equal to the total number of storage units in the storage module. That is to say, in the case of small data, do not cascade all the enabling units in the storage module, and only need to cascade a part to store the data.
- Step 102 Enable the number of storage units in the storage module, cascade the number of storage units to form a first cascade storage unit, and store the to-be-stored data in the first In a cascaded storage unit.
- the storage unit includes different signal ports, and the functions of each port are as follows:
- Address The address at which the storage unit performs read and write operations.
- Data input The data that the storage unit performs a write operation.
- Read/Write Enable Controls the operating mode in which the memory cell is in a read or write mode.
- Chip Enable Controls whether the memory unit is in a working state.
- Bit Width Selection Controls how many bits of stored data are read and written by the storage unit.
- the data storage method of the embodiment can adaptively set the capacity of the storage module according to the size of the data to be stored, improve the utilization of the storage space and the logical resource, reduce storage space redundancy, and waste logical resources;
- the capacity of the storage module can be set to match the data size by cascading, which avoids the existing programmable logic device facing small-capacity data storage due to excessive block RAM capacity.
- the storage module can independently perform read and write operations. Since the storage module is composed of a small-capacity storage unit, the storage module has a small area, and thus the running speed is fast. Can greatly increase the speed of data exchange with external circuits.
- the manner in which the method of the embodiment can cascade the number of storage units includes: serial concatenation or parallel concatenation, that is, serializing the number of storage units as described in step 102 above.
- the process of forming the first cascaded memory cells includes: serially concatenating the number of memory cells or parallel forming the first cascaded memory cells.
- the first number of memory cells may be serially cascaded in such a manner as to increase the byte depth to form the first cascaded memory cells.
- each storage unit may be connected in byte order, so that the bit width of the first cascaded storage unit is equal to the bit width of the storage unit, that is, the bit width is unchanged, and the byte of the first hierarchical storage unit is The sum of the byte depths of the cascaded memory locations.
- the storage module includes four storage units with a capacity of 2K bits, and the data storage to be stored in the 8K bits is taken as an example to describe the serial cascading mode in this embodiment:
- the chip enable signals of the four memory cells are first set to be effective, and the memory modules realize the storage capacity of 8K bits by serially cascading four memory cells.
- the 8K bits memory module can realize the bit width of various bits.
- the storage data is outputted by the cascade output port; the serially cascaded storage module is shown in FIG.
- the circuit implementation of the four memory cells in the serial cascode memory module is that each memory cell is connected in byte order, and the bit width of the memory module is kept unchanged by M, and the byte depth is changed to 4N.
- the overall storage capacity is increased to 8K, and the connection mode of the storage unit in the storage module is as shown in FIG. 5.
- the storage module that is cascaded by using the serial method is applicable to data to be stored with small bit width and large byte depth; and facing data with a small byte depth and a large bit width, a string
- the way in which rows are cascaded with storage units is not feasible.
- the method in this embodiment can not only cascade the storage units in a serial manner, but also cascade the storage units in a parallel manner.
- Embodiment methods may form the first cascaded memory cells in parallel by cascading the number of memory cells in a manner that increases bit width. Specifically, a determined number of memory cells can be connected in the order of bit width, and the same size of the memory module is also increased. The resulting first cascaded memory cell has the same byte depth as the memory cell's byte depth, but the bit width is the sum of the bit widths of all cascaded memory cells.
- the storage module includes four storage units with a capacity of 2 ⁇ bits, and the data storage to be stored of 8K bits is taken as an example to describe the parallel cascading manner in this embodiment:
- the chip enable signals of the four memory cells are set to be effective, and four memory cells are cascaded in parallel by programming, and the storage module realizes the storage capacity of 8K bits, after parallel cascading
- the storage module is shown in Figure 6.
- the circuit implementation of the four memory cells in the parallel cascode memory module is that each memory cell is connected in the order of bit width, and the bit width of the memory module is changed to 4M, and the byte depth is kept unchanged by N.
- the overall storage capacity is increased to 8K.
- the connection mode of the storage unit in the storage module is shown in Figure 7.
- the variable width of the storage module is especially suitable for the computing needs of multiple encryption algorithms in the information security field.
- the number of storage units that need to be cascaded determined in the method in this embodiment is smaller than the total number of storage units; therefore, all storage modules in the storage module are not required to be cascaded, for example, when The storage module includes four storage units. If the data is not large, four storage units are not required to be stored together, that is, four storage units are not required to be cascaded. In this case, based on the above content, the method of this embodiment further includes:
- the method in this embodiment may also use the first cascading storage unit and the uncascaded storage unit to store different sizes of data.
- the storage module includes four storage units with a capacity of 2K bits, and the data storage to be stored of 4K bits is taken as an example to introduce the method of the embodiment:
- the memory module realizes the storage capacity of 4K bits by programming serially cascading two storage units, refer to FIG. 8. By controlling the bit width selection signal, the 4K bits memory module can realize the bit width of various bits. Cascaded output port output 4K
- the bits store the stored data of the submodule.
- the serial cascading mode of the internal memory cells of the module is similar to that of the serial 8K bits memory module.
- the byte depth is increased to 2N, and the bit width is kept unchanged.
- the memory unit 3 and the memory unit 4 also operate normally in the case where the chip is enabled, and the output of the unit 3 and the output of the unit 4 output two ports.
- the 4K bits memory module is implemented in two more output ports than the 8K bits memory module, and can perform three-way data exchange at the same time.
- Another form of implementing the 4K bits memory module is a memory cell in the parallel cascading module, which increases the memory capacity in a manner of increasing the bit width, as shown in FIG.
- the module's internal memory cells are connected in a similar manner to the parallel 8K bits memory module.
- the memory cells are connected according to the bit width.
- the byte depth is kept at N and the bit width is changed to 2N.
- the method of the embodiment can control the storage unit to perform serial or parallel cascading, realize the change of the byte depth and the bit width, and realize the adaptation of the storage capacity of the storage module.
- the first embodiment is mainly when the number of bytes of data to be stored is greater than the capacity of the storage unit is less than or equal to the capacity of the storage module, and the data is stored; in actual applications, there may be a collision.
- the method of the first embodiment is not applicable; in this case, the embodiment provides a data storage method, and based on the content described in the first embodiment, The method includes: when the number of bytes of the data to be stored is smaller than the capacity of the storage unit, enabling one of the storage units, and storing the to-be-stored data in the storage unit Medium.
- the storage module includes four storage units with a capacity of 2K bits, and the data storage to be stored of 4K bits is taken as an example to introduce the method of the embodiment:
- the storage module may not cascade the storage units inside the module, and the chip enable signals of the storage unit 1 to the storage unit 4 are asserted, and each storage unit serves as an independent storage.
- the sub-module performs the reading and writing operation; the four ports respectively output the respective read and write data, as shown in FIG. 10, the storage units 1, 2, 3, and 4 are not cascaded, and each storage unit has an output port, which can be independently performed. Read and write operations.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the above storage module is applicable, even if all the storage units of the cascade cannot store large-scale data; therefore, as shown in FIG. 11, this embodiment A data storage method is provided. Based on the first embodiment and/or the second embodiment, the method further includes:
- Step 110 When the number of bytes of data to be stored is greater than the capacity of the storage module, determine the number of storage modules that need to be cascaded according to the capacity of the storage module and the number of bytes.
- Step 111 Cascading all of the storage units in the quantity of storage modules.
- the step may include: serially or parallel cascading all of the storage units in the quantity of storage modules; that is, cascading storage units in the storage module in a parallel or serial manner.
- Step 112 Cascading the number of storage modules to form a second cascading storage unit, and storing the to-be-stored data in the second cascading storage unit.
- the step may specifically include: serially or parallelly cascading the number of storage modules to form a second cascade storage unit.
- the method in this embodiment may also cascade the storage modules to form a second capacity storage module of a larger capacity to meet the requirement of storing larger data.
- two 8K bits of memory modules can be serially or parallelly cascaded by programming, and a maximum of 16K bits of cascaded memory modules can be realized.
- the following storage module includes four storage units of 2K bits capacity, 32-bit wide and 14K bits to be stored.
- Data storage is taken as an example to introduce the method of this embodiment:
- the storage unit in the storage module is set to a bit width of 8 bits, and four storage units are cascaded in parallel to realize a storage module having a bit width of 32 bits and a capacity of 8 Kbits.
- the two storage modules are serially cascaded to implement a 32-bit wide, 16K-bit second cascade storage unit, and the data to be stored is stored in the second cascade storage unit.
- two memory modules with a bit width of 16 bits and a capacity of 8K bits can be parallel cascaded to realize a second cascade memory unit having a bit width of 32 bits and a capacity of 8 Kbits, as shown in FIG. 13;
- the storage units in the two storage modules are cascaded to form a storage module having a bit width of 16 bits and a capacity of 8K bits, and then the two storage modules are cascaded in parallel to form a second level of 32 bits.
- Connected storage unit Adjust the serial and parallel cascading methods of the storage module to flexibly adapt to different storage needs.
- the storage module in the method of the embodiment can also achieve larger-scale storage by cascading. Through the combination and control of the storage modules, the storage requirements of different byte depths and different bit width data are satisfied.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the embodiment provides a storage module for a programmable logic device, including: a first level storage unit; the first cascade storage unit is configured by multiple small-capacity storage units. The unit is cascaded.
- the first cascading storage unit is formed by serial or parallel cascading of a plurality of small-capacity storage units.
- a byte depth of the first cascading storage unit is a plurality of storage units The sum of the byte depths.
- a bit width of the first cascading storage unit is a bit width of the plurality of storage units Sum.
- the storage module of this embodiment may further include: a storage unit that is not cascaded.
- the storage module of the embodiment may further cascade the output port and the storage unit output port; the cascade output port is configured to output data stored by the cascade storage unit, and the storage unit output port And for outputting data stored by the uncascaded storage unit.
- Embodiment 5 :
- the embodiment provides a programmable logic device, including a second cascade storage unit, where the second cascade storage unit is composed of a plurality of storage module levels as described in Embodiment 4. Formed together.
- the second cascading storage unit is formed by a plurality of storage modules as described in Embodiment 4 in a serial or parallel cascade.
- a storage circuit includes a programmable logic device and an external circuit; the programmable logic device includes a plurality of second cascaded memory modules, and the second cascaded memory module includes a plurality of memory module levels.
- the memory module may be formed by cascading a plurality of memory cells; the external circuit includes a digital processor for performing storage control on the memory module and the cascade memory module.
- the memory circuit provided in this embodiment utilizes the characteristics of its programmable wiring to realize capacity expansion by cascading memory cells.
- the way the memory module is connected to the external circuit is also determined by programming and is implemented by interconnectable resources.
- the memory module performs data read and write operations independently, and performs data exchange in parallel with external circuits.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage medium (ROM/RAM, disk, optical disk) by a computing device, and at some In some cases, the steps shown or described may be performed in an order different from that described in the above embodiments, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof may be fabricated into a single integrated circuit module. to realise. Therefore, the invention is not limited to any specific combination of hardware and software.
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CN106649136B (zh) * | 2015-11-03 | 2022-09-23 | 西安中兴新软件有限责任公司 | 一种数据存储方法和存储装置 |
CN107204198B (zh) * | 2016-03-18 | 2020-06-09 | 深圳市中兴微电子技术有限公司 | 高速访问双倍速率同步动态随机存储器的控制方法及装置 |
CN107544917A (zh) * | 2016-06-24 | 2018-01-05 | 中兴通讯股份有限公司 | 一种存储资源共享方法和装置 |
CN106297861B (zh) * | 2016-07-28 | 2019-02-22 | 盛科网络(苏州)有限公司 | 可扩展的多端口存储器的数据处理方法及数据处理系统 |
CN106302260B (zh) * | 2016-07-28 | 2019-08-02 | 盛科网络(苏州)有限公司 | 4个读端口4个写端口全共享报文的数据缓存处理方法及数据处理系统 |
CN109542799B (zh) * | 2018-11-05 | 2023-03-28 | 西安智多晶微电子有限公司 | 块存储器拼接方法、拼接模块、存储装置及现场可编程门阵列 |
CN111381771B (zh) * | 2018-12-29 | 2023-06-27 | 深圳市海思半导体有限公司 | 存储数据的方法、存储控制器和芯片 |
CN110782389B (zh) * | 2019-09-23 | 2023-09-15 | 五八有限公司 | 一种图像数据字节对齐方法和终端 |
CN111008160A (zh) * | 2019-11-30 | 2020-04-14 | 苏州浪潮智能科技有限公司 | 一种数据处理方法、装置和电子设备及可读存储介质 |
CN111078150A (zh) * | 2019-12-18 | 2020-04-28 | 成都定为电子技术有限公司 | 一种高速存储设备及不间断扩容方法 |
CN112068467B (zh) * | 2020-08-24 | 2022-01-14 | 国微集团(深圳)有限公司 | 数据传输系统、数据存储系统 |
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