Sram based fpga architecture pdf portfolio

Once the fpga designer develops a logic cell architecture they like, they tend to repeat it. Customizable field programmable gate array fpga market, by architecture. The design of an srambased fieldprogrammable gate array. As stated in 1, the logic may be grouped into four different structure types. A defecttolerant cluster in a mesh srambased fpga arwa ben dhia. To validate and justify our approach, 512 36 hp srambased tcam has been implemented in xilinx virtex5 field programmable gate array fpga and designed using 65nm cmos technology. However, if youre interested in fpgas under the hood, then have a look at the virtex6 fpga configurable. A new commercial prototype, named the rs family, was used as an example for the investigation.

As such fpgabased circuits exhibit many of the favorable charac. Each kinput lut can implement any function with up to k variables and is comprised of a 2 k sram configuration bits that store the truth table of target boolean function and b 2 k multiplexer that selects the appropriate sram content based on the given inputs of the lut. An n input lut requires 2n bits of sram to store the lookup table, and a 2n w 1 multiplexer to. Lyons, a comparison of cmos static randomaccess memory cells, electronic engineering times, august 5, 1985. Reassuring fault tolerance in computing systems that contain fpga devices is the most important problem for mission critical space components. Intel delivers a broad portfolio of programmable logic devicesfpgas, socs, and cpldstogether with. A test framework using an exchangeable payload is developed for this purpose and run on a xilinx virtex5 fpga. The most probable effect, when we consider srambased fpga at sealevel, is the singleevent upset seu, i. Configuration memory architecture in sram based fpga modern fpga devices in general provide an array of logic resources, which may be interconnected, and configured for specific functions. This thesis examines and quanti es the additional considerations and techniques designers should employ with a rhbd sram based fpga in a space based processing system to achieve high operational. However, if youre interested in fpgas under the hood, then have a look at the virtex6 fpga configurable logic block user guide or the virtex5 fpga user guide. A novel srambased fpga architecture for defect and fault tolerance of configurable logic blocks. Arwa ben dhia, saif ur rehman, adrien blanchardon, lirida naviner, mounir benabdenbi, et al.

Flashbased vs srambased fpga most important con of sram based fpga. Flash based vs sram based fpga most important con of sram based fpga. For example, im using a fpga dev board from terasic and it uses dram. In this paper, we evaluate and compare scrubbing techniques for xilinx sram based fpgas with respect to radiationinduced single event upsets. Sram based fpgas require an external nonvolatile memory to hold their configuration pattern, which upon powerup is transferred via serial link into. On the optimal design of triple modular redundancy logic. The proposed work includes a self controllable voltage level svl circuit along with 10t sram cell and asynchronous counters in read circuit memory block instead of shift registers. Fpga is based on 10t static random access memory sram cell configuration in which power consumption is relatively high. To reach an rtl model of a circuit, manual design and tuning. Ieee design and diagnosis of electronic circuits and systems proc 2010. A defecttolerant areaefficient multiplexer for basic. Fieldprogrammable gate arrays fpgas are integrated circuits that are based around a matrix of configurable logic blocks clbs connected via programmable interconnects. Configuration memory architecture in srambased fpga modern fpga devices in general provide an array of logic resources, which may be interconnected, and configured for specific functions. Designing fault tolerant systems into srambased fpgas.

Fpga architectures overview in this short article we discuss modern fpga architectures srambased, flashbased, antifusebased and their applications. In srambased fpgas, customizable memory cells sram cells, implement both the users combinational and sequential logic. Configuration bitstream reduction for srambased fpgas by. The present chapter provides an overview of various factors responsible for power consumption in fpga and discusses the design techniques of lowpower srambased fpga at system level, device level, and architecture levels. On power up, the device transfers the configuration information to the internal sram. So the jist is that due to the nonvolatile nature of flash, when power is taken away from the fpga, the configuration is still present and is far faster to reconfigure when power is reapplied vs. Srambased fpga stores logic cells configuration data in the static memory.

The altera stratix v has reprogrammable sram configuration and routing, so it needs the external nonvolatile configuration memory. In this paper, we propose a superimposed virtual coarsegrained reconfigurable architecture, embedded with ondemand three. An sram static random access memorybased reprogrammable fpga field programmable gate array is investigated for space applications. Srambased fpga depends on the type of data structure to be protected. Besides a significant increase in density, the virtex also offers several architectural and. Alderighi m, casini f, dangelo s, pastore s, sechi g, weigand r. The first classification stage divides the tcam table into several subtables of balanced size.

The design of an sram based fieldprogrammable gate array part i. Mar 07, 2015 sram means the chip programming is held in ram or flops or similar. Configuration bitstreams can be stored in fpgas using various technologies. Introduction qdr sram devices were developed in response to the demand for higher bandwidth memories targeted at networking and telecommunications applications. Fortunately or unfortunately, the devices best suited to signal processing and the larger logic density devices tend to be the sram static random access memory based ones. The design of an srambased field programmable gate array part i. A defecttolerant cluster in a mesh sram based fpga arwa ben dhia, saif ur rehman, adrien blanchardon, lirida naviner, mounir benabdenbi, roselyne chotinavot, habib mehrez, emna amouri, zied marrakchi to cite this version. The present chapter provides an overview of various factors responsible for power consumption in fpga and discusses the design techniques of lowpower sram based fpga at system level, device level, and architecture levels. Fpga architecture presentation linkedin slideshare. Fpga based synchronous multiport sram architecture for. Learn more about alteras soc fpga product portfolio.

Pdf analysis of the robustness of the tmr architecture. Srambased fpga will be the focus of this work, more specifically the virtex family 1 from xilinx. Mar, 2015 alderighi m, casini f, dangelo s, pastore s, sechi g, weigand r. Sram based fpga depends on the type of data structure to be protected. Jun 25, 2009 the point i was trying to make is that all flash based fpgas are not the same. How does srambased fpga differ from antifusebased fpga. Inputoutput logic based faulttolerant design technique for.

Comparing flash and srambased fpgas electronic products. Pdf a srambased architecture for triebased ip lookup. Customizable field programmable gate array fpga market. As a result, srambased fpgas offer the additional benefits of allowing inorbit design changes, with the aim of reducing the mission cost by correcting errors or improving system performance after launch. Introduction to emerging srambased fpga architectures in dark silicon era chapter pdf available in advances in computers january 2018 with 1,261 reads how we measure reads. Srambased fpgas require an external nonvolatile memory to hold their configuration pattern, which upon powerup is transferred via serial link into. A new architecture for singleevent upset detection. It performs high speed lookup operations within a single clock cycle. Soft errors in partially and dynamically reconfigurable sram. I had never knew flash based fpga fabrics really existed. Lattices are really srambased using a mixed sram flash process with backup storage in the onchip flash.

Sram means the chip programming is held in ram or flops or similar. J1, completed the portfolio of supported operations. On the optimal design of triple modular redundancy logic for. The throughput logic is a logic module of any size or functionality, synchronous. Soc fpga devices integrate both processor and fpga architectures into a single device. A performancedriven general logic synthesis system for. Virtex fpga the virtex fpga is a relatively new product from xilinx inc. Hyperflex fpga architecture to deliver up to 40% higher performance1 or up to 40% lower power1. A generic methodology to compute design sensitivity to seu in srambased fpga mahsa mousavi and hamid reza pourshaghaghi technical university of eindhoven email. The research field of architectures of such reconfig. Area efficient fpga architecture for datapath circuitsomesh mutukuda masc. As a result, rasp can produce highly optimized designs for various sram based fpga architectures, and can be quickly adapted for new sram based fpga architectures. A generic methodology to compute design sensitivity to seu.

But when compared to ram technology the conventional tcam circuitry has certain limitations such as low access time, low storage capacity, circuit complexity and high cost. Several methods suggest using universal logic models. Customizable field programmable gate array fpga market, by technology node. Sram based reprogrammable fpga tbr space applications. Xilinxs 3an series are multidie solutions with a standard. Here, especially srambased fpgas have to deal with radiation.

How can sram based fpga implement the combination logic. Smartfusion2 soc fpga sram initialization from envm. Analysis of the robustness of the tmr architecture in srambased fpgas article pdf available in ieee transactions on nuclear science 525. Seu fault evaluation and characteristics for srambased fpga. Srambased fpga will be the focus of this work, more specifically the virtex family 17 from xilinx. Atmel microsemi xilinx the flow has been extended to partially and dynamically reconfigurable system based on xilinx fpgas. With the rise in interest of commercial srambased fpgas, it is crucial to provide runtime reconfigurable recovery from a failure. Single event upset mitigation techniques for sram based fpgas. When a seu occurs in the combinational logic synthesized in the fpga, it corresponds to a bit.

Xilinx xapp853 qdr ii sram interface for virtex5 devices. Functionality and connectivity are implemented by clustered logic blocks clb and routing blocks. Faults in the configuration memory of a srambased fpga directly modify the definition of its function, dangerously impacting its ability to operate properly. Sram, flash, and antifuse fpgas are programmable, and the program resides in a memory which determines how the logic and routing in the device is configured. In the existing system, the fpga is based on 10t static random access memory sram cell configuration in. Pdf fpga based architecture for high performance sram. You usually dont have to bother with luts and flipflops, especially not at the beginner level. Architectureaware bitstream reduction techniques often suggest improving the fpga architecture itself to reduce bits, e. In module 3 you will learn the pros and cons of flashbased, srambased, and antifuse based fpgas. Throughout the history of fpgas, luts have been the mainstream logic block adopted by commercial fpga vendors.

We show that recent sram based fpgas can constitute a. It is an sram based fpga that supports a range of 50k to 1m configurable gates and is fabricated on. Automated fault attacks against srambased fpgas pawel swierczynski, georg t. Assessing scrubbing techniques for xilinx srambased. Tulloss, the test access port and boundaryscan architecture, ieee computer science press, 1990.

Dram data is accessed by block, sram data can be accessed addressed byte by byte or word by word, or 36 bit at a time, whatever. Assessing scrubbing techniques for xilinx srambased fpgas in. A defecttolerant areaefficient multiplexer for basic blocks. Ultrascale architecture staying a generation ahead with an extra node of value xilinxs new 16nm and 20nm ultrascale families are based on the first architecture to span multiple nodes from planar through finfet technologies and beyond, while also scaling from monolithic through 3d ics. Xilinxs 3an series are multidie solutions with a standard srambased part and a spi flash packaged together. Pdf analysis of the robustness of the tmr architecture in. A low complexity method for detecting configuration upset in. Presented at the 2017 ieee 23rd international symposium on online testing and robust system design iolts. Srambased fpga systems for safetycritical applications. A low complexity method for detecting configuration upset.

Becker, amir moradi, christof paar, fellow, ieee abstractthis contribution is concerned with the question whether an adversary can automatically manipulate an unknown fpga bitstream realizing a cryptographic primitive such that the underlying secret key is. Introduction to emerging srambased fpga architectures in. Soft errors in partially and dynamically reconfigurable. How can srambased fpga implement the combination logic. Although dram memory seems to be cheaper that sram static ram, from my point of view it is not optimized for image processing, let me explain. Srambased field programmable gate array, antifuse based field programmable gate array, and flashbased field programmable gate array. Gul khan slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Srambasedfpgasystemsfor safetycriticalapplications. Institut telecom, telecom paristech, paris, france grenoblealpes university, tima laboratory, grenoble, france lip6, pierre and marie curie university, paris. As a result, rasp can produce highly optimized designs for various srambased fpga architectures, and can be quickly adapted for new srambased fpga architectures. Luca sterpone, sefuw workshop esaestec, noordwick, the netherlands.

The design of lowpower sram cell becomes a necessity in todays fpgas, because sram is a critical component in fpga design and consumes a large fraction of the total power. Single event upset mitigation techniques for sram based. The basic qdr architecture has independent read and write datapaths for simultaneous operation. The complexity of configuration integrity monitoring has hindered application of these devices in environments where upset is likely.

Nov 01, 2017 global field programmable gate array fpga market research report forecast to 2025 customizable field programmable gate array fpga market. Evaluation of single event upset mitigation schemes for sram based fpgas using the flipper fault injection platform. Index termsfpga, fpga architecture, fpga circuit design, field programmable gate arrays, sram programmable. The main objective of this work is to design a memory cell in field programmable gate array fpga that consumes lesser power with reduced delay constraint. Introduction fpga field programmable gate array is an integrated circuit containing gate matrix which can be programmed by the user in the field without using expensive equipment. Defect and faulttolerance in vlsi systems, september 2007, pp. Sensitive customer data can be attacked and embedded systems compromised.

A srambased architecture for trie based ip lookup using fpga. Each clb contains a number of block logic elements ble. Fault tolerant design implementation on radiation hardened. Field programmable gate array market by technology eeprom.

Ternary content addressable memory is a type of memory that allows the memory to be searched by content rather than by address. Srambased fpgas lack the key capabilities required to create a trusted and secure hardware platform for a secure embedded system making them vulnerable to cloning, copying, and reverse engineering. On the other hand, srambased fpgas need a supporting nonvolatile memory to store the con. In module 3 you will learn the pros and cons of flash based, sram based, and antifuse based fpgas. Architecture paul chow, member, ieee, soon ong seo, jonathan rose, member, ieee, kevin chung, gerard p. Architecture aware bitstream reduction techniques often suggest improving the fpga architecture itself to reduce bits, e. Smartfusion2 soc fpga sram initialization from envm libero soc v11. Proceedings of the ieee 23rd international symposium on online testing and robust system design. Besides a significant increase in density, the virtex also offers several architectural and process advantages. Reliabilityaware placement in srambased fpga for voltage. Pdf fpga implementation of srambased ternary content. Usually, the board will have an eeprom to hold the program bitstream and the fpga will load the bitstream automatically at reset.

The point i was trying to make is that all flash based fpgas are not the same. Inputoutput logic based faulttolerant design technique. Srambased fpgas require an external nonvolatile memory to hold their. Throughput logic, statemachine logic, io logic, and special features select block ram, dlls, etc. Seu fault evaluation and characteristics for srambased. Politecnico di torino fpga cad flow the flow is currently applied to the following fpga families. Power efficient dataaware sram cell for srambased fpga. Global field programmable gate array fpga market research report forecast to 2025 customizable field programmable gate array fpga market. In this paper, we evaluate and compare scrubbing techniques for xilinx srambased fpgas with respect to radiationinduced single event upsets. Further, fpga devices based on sram are the most susceptible to the adverse e. Single event effects in sram fpga single event upset seu in configuration memory in sram fpga, the circuit itself is stored in a ram. Single event upsets in sram fpga the functionality of a sram fpga is determined by the state of its con. A performancedriven general logic synthesis system.