Which two storage resources inside the FPGA chip

March 15, 2024
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FPGA chip is a programmable logic device that uses reconstructed hardware circuits.In order to support high -speed data communications, high -speed computing and large -capacity storage, FPGA chips have rich resources, including storage resources.This article will explore two storage resources inside the FPGA chip.

## Storage Resources 1: On-chip Memory

The memory in the FPGA chip is a high -speed memory, which is similar to the register in the processor. It can quickly access and read and write data.The memory on the film is one of the most commonly used memory in the FPGA chip. It can provide a very fast read and write speed, and can be directly integrated in the logic of FPGA.Compared with external memory, the access to the film memory is faster and more reliable, and the CPU does not need to consume too much machine cycle during access.

## storage resource two: distributed memory

Cyclone FPGA

The distributed memory in the FPGA chip is a small storage unit distributed in FPGA chips, which consists of logical units inside FPGA.The advantage of distributed memory is its distributed characteristics. It can achieve efficient data exchange through the interconnected network inside the FPGA chip.Distributed memory is widely used to store small -scale data blocks and realize data analysis and calculations in FPGA chips.

## The type of memory on the film

The memory on the film is generally divided into a readable can be written (RAM) and only read -only memory (ROM).RAM’s storage unit consists of registers and decoders, which can read and write data.The disadvantage of the RAM unit is that the capacity is small, and RAM is generally used to store small data such as temporary variables in the program.The storage unit of ROM is composed of only read memory (ROM) and decoders. ROM generally cannot write data, and can only be read.The capacity of ROM can be very large, and ROMs are used to store data such as constant, parameters and other data in the program.

## distributed memory structure

The distributed memory consists of a logical unit in the FPGA chip, and the logic units are connected through the interconnection network.Logic units are generally divided into several comparisons, each with a corresponding storage unit.Each storage unit in the logical unit can directly access and process data from other logical units.Due to the reconstruction of distributed memory, it can meet the needs of different application scenarios.


## Application scenario of memory on the film

The memory on the film can be widely used in various application scenarios, such as digital signal processing (DSP), image processing, communication, multimedia, etc.In these application scenarios, the memory on the film is generally used to store data that needs to be accessed quickly, such as the filter coefficient in digital signal processing, pixel data in image processing.

## distribution memory application scenarios

The distributed memory is mainly used to store small -scale data blocks, and the data analysis and calculation of data is implemented in the FPGA chip.Distributed memory can undertake a large number of computing tasks, such as using embedded assembly line technology to accelerate image processing, machine vision, encryption and decryption.

The advantages and disadvantages of ## Memory and distributed memory

The memory on the film has the advantages of fast reading and writing speed, low cost, and high reliability, but the capacity is relatively small.The distributed memory has the advantages of large capacity, strong flexibility, and strong reconstruction, but it requires the necessary hardware resources to achieve.


## FPGA chip’s internal storage resource application

Inside the FPGA chip, the memory and distributed memory on the chip can be used to store various data, such as image data, audio data, keys in encryption algorithms, FIR filter coefficients, etc.In addition, in the field of video compression, memory and distributed memory on the film are also essential storage resources.

## View

The built -in storage resources of the FPGA chip can provide very fast access and processing speed to meet the needs of high -speed data communication, high -speed operations and large -capacity storage.It can reasonably use and combine different types of storage resources, improve the comprehensive performance of FPGA chips, and meet the needs of different fields and applications.