Qdr memory interface pdf

Prior to the electronics industry downturn in 2000, electronic system designers were less concerned with. Ultrascale architecture fpgas memory interface solutions v7. Analog devices sram memory supplies and bus termination products are the. Interface gci between the fpga and be as well as all memory addressing and commands and looks to the user like a qdr interface. The ddr interface is used to exchange a signal with ddr devices. Blazar be2burst accelerator engine intelligent inmemory. Qlogic qle7340 singleport 40 gbps qdr infiniband host. Ddr sdram is most popular of all since it offers a reasonably large amount of volatile storage that can be accessed at a reasonable speed. Regulator provides a compact solution for ddr memory termination pdf. Zynq7000 soc and 7 series devices memory interface. Xilinx ultrascale 34length pcie board with quad qsfp, ddr4. The pinout for the ddr interface facilitates ease of routing to a standard jedec dimm.

It is meant to be used at the user interface to connect to the user. Oracle dual port qdr infiniband adapter m4 oracle dual port qdr infiniband adapter m4 brings application acceleration in silicon to the infiniband fabric interface. Now how do i ensure the communication between the two worlds. Qdriv sram xilinx virtex7 fpga memory interface design. The memory interface generator mig tool generates the c and c pins, which can be removed by the user if they are tied high on the board. Recognize tradeoffs of different memory types cost density power understand how to optimize the performance of your memory interface see design examples for ddr3, illustrating hardware development platforms and easy touse tools bandwidth random transaction rate access latency. Intel offers the following technical documentation that contains information on device support for the qdr and qdr ii memory interfaces, as shown in table 1.

Hps external memory interface performance the hard processor system hps is available in cyclone v soc devices only. Qdr sram, on the other hand, is designed specifically for maximum rtr. Letter qdr odd a pete townshend fave and may giveaway. These cores provide solutions for interfacing with these sdram memory types. How to effectively manage timing of fpga design flows 6. Various boards offer different memory options such as sram, qdr, sdram, flash etc. Control your qdr designs 00 xcell journal fall 2004. External memory interfaces in cyclone iv devices, cyclone iv. Quad data rate qdr sram is a type of static ram computer memory that can transfer up to four words of data in each clock cycle. Like double datarate ddr sdram, qdr sram transfers data on both rising and falling edges of the clock signal. Qdr and qdr ii srams, the latest generation of synchronous srams, were developed by such companies as cypress, renesas, idt, nec, and samsung, that make up the qdr consortium. A ddr and qdr converter and an interface, a motherboard and a memory module interface using the same.

Ddr qdr memory interface design, export the information as constraint data into ise, and automatically get visual verification of design success. Introduction date xtp359 memory interface ultrascale design checklist pg150 ultrascale architecture fpgas memory ip product guide 10302019 pg150 creating a memory interface design using vivado mig 10302019 designing with ultrascale memory ip. Pdf association of physical fitness, body composition. Qdr iv, the latest generation of the highperformance qdr sram family, provides a random transaction rate rtr of 22 mts on two independent bidirectional data ports. Synchronous sram microcontrollers, connectivity, memory. Stepping through the design flow, we implemented a qdr memory controller in a.

The qdr sram architecture features two data ports operating twice per clock cycle to deliver a total of four data words per cycle. For any interface that spans across two different sides, use the wraparound interface performance. Optimal memory interface design with xilinx 7 series. Selecting your memory, external memory interface handbook. A straightforward user interface is provided to allow simple integration into a complete fpga design utilizing one or more qdr ii interfaces. High speed ddr memory interface design researchgate. P6810, p6860, and p680 logic analyzer probes manual.

The intel bkm for this is to provide the ixp28xx qdr interface through a 2 x 57 shrouded 114pin mictor connector. Qdriila1compliant coprocessor or an upgradable qdr memory module. Cathy baker progress qatar 2016 17 by oryx group of magazines issuu. Asbmr 30th annual meeting m001m507 2008 journal of bone and. The resulting performance increase is particularly valuable in bandwidthintensive.

Altera fpgas achieve optimal memory interface performance with external memory ip. Hardware and layout design considerations for ddr memory. The main purpose of this capability is to enable reads and writes to occur at high clock frequencies without the loss of bandwidth due. The cards described in this manual have the following main features. The c and c pins of the qdr ii memory device are tied high in figure 2. In contrast, the only data from memory to the processor is the output data. November 2012 altera corporation external memory interface handbook volume 1. For the latest information and to estimate the external memory system performance specification, use alteras external memory interface spec estimator tool. Physical layer interface phy which handles the timing on the data path itself. Qsfpdd supports up to 400 gbs in aggregate over an 8 x 50 gbs electrical interface. External memory interfaces in cyclone iv devices, cyclone. For the purposes of this design guide, well use a qdr sram device to illustrate a sourcesynchronous interface design. How to effectively manage timing of fpga design flows 4 library spreadsheets timing diagram window dynamically linked parameter spreadsheet manager window figure 1 timingdesigners gui windows allow easy capture of design interface characteristics 3.

Us20020174274a1 ddr and qdr converter and interface card. For signal integrity, the devices are clamshelled to minimize stubbing. Manual pin placement rules for arria v except arria v gz devices. Availability of sufficient data storage is a very important factor when selecting an fpga development board. These challenges will continue to multiply as new memory interface standards are developed. The oracle dual port qdr infiniband adapter m3 is a highperformance infiniband host channel adapter hca that is designed to perform optimally in server and storage systems that support pci express 3. Qdr and qdrii srams, the latest generation of synchronous srams, were developed by such companies as cypress, renesas, idt, nec, and samsung, that make up the qdr consortium. Consult the memory manufacturers data sheet to check the memory device characteristics. With these higher data rates, the design implementation becomes more complex and more challenging. This product guide provides information about using, customizing, and simulating a. Implementing a highperformance memory interface such as a ddr or qdr interface can be challenging at both the board and fpga component implementation level. Work queue is the consumerproducer interface to the. Evaluation of infiniband ddrqdr on intel computing platforms hari subramoni, matthew koop and dhabaleswar. Altera memory solution overview and design flow these mpfe blocks are critical to the design and the use of the memory interface block.

Timing measurement problems and solutions in source. The cypress qdr iv sram interface design is a fully synthesizable controller and physical layer phy on xilinx virtex7 fpgas. Altera provides modular memory solutions that allow you to customize your memory interface design to any of the following. Memory controller block which implements all the memory commands and addresses. The quadro p combines a 640 cuda core pascal gpu, 4 gb gddr5 onboard memory and advanced display technologies in a lowprofile form factor to deliver amazing graphics performance for demanding professional applications.

Design guidelines november 2012 feedback subscribe iso 9001. Qlogic qle7340 singleport 40 gbps qdr infiniband host channel adapter product guide withdrawn product highperformance computing hpc solutions have used infiniband networks to meet the needs of the most demanding sets of applications and grand challenges. View and download xilinx ml365 virtexii pro qdr ii sram m user manual online. Xilinx ds176 7 series fpgas memory interface solutions. Qdriv, the latest generation of the highperformance qdr sram family, provides a random transaction rate rtr of 22 mts on two independent bidirectional data ports. Apr 29, 2016 in most cases where memory controllers are available on silicon, the interface may not be readily usable by the users logic. Zynq7000 soc and 7 series devices memory interface solutions.

Ds186, virtex6 fpga memory interface solutions data sheet. On the other side, there is a generic user interface, which consists of basic writeread selects, separate read and write data buses, and an input clock sysclk. The data is accepted within the fpga in a usb controller. Ensuring the integrity of our systems is a top priority for hologic. The cage and connector design provides backwards compatibility to qsfp28 modules which can be inserted into a qsfpdd. Implementing a highperformance memory interface such as a ddr or qdr. You can use any unused dq pins as regular user io pins if they are not used as memory interface signals. There are two target components on the interface a qdrii memory and a content addressable memory cam. Oracle dual port qdr infiniband adapter m4 data sheet. Cypress cy7c15632kv18 quad data rate memory, 72 mbit, 4 word burst xilinx spartan 6 fpga design details given below is the block diagram of the qdr controller ip. The following topics provide an overview of alteras external memory interface solutions. The ddr and qdr converter has a qdr interface, a ddr interface and a conversion core.

The cage and connector design provides backwards compatibility to qsfp28 modules which can be inserted into a qsfpdd port and connected to 4 of the 8 electrical channels. The cypress qdriv sram interface design is a fully synthesizable controller and physical layer phy on xilinx virtex7 fpgas. The cam has a footprint with a mirror image of a qdr memory footprint in one quadrant, to allow a qdr memory to be clamshelled on the back. This family of network srams, along with double data rate ddr and ddrii srams, provides complete memory solutions for any networking system. Altera provides a comprehensive suite of video function ip blocks that can be connected together to design and build video systems. The qle7340 is a singleport 40 gbps infiniband pci express gen2 x8 host channel. Memory controller converts the bandwidth engine serial protocol to a fpga parallel qdr like interface to the user and is provided at no cost to the user. Calculate the number of other memory interface pins needed, including any other clocks write clock or memory system clock, address, command, rup, rdn, rzq, and any other pins to be connected to the memory components.

Cyclonevdevicedatasheet hps external memory performance table 63. Coreqdr consists of a qdr ii interface on one side for controlling a qdr memory chip as well as capturing data from it and generating data to it. This means that data is transferred on the rising and falling. Ml365 virtexii pro qdr ii sram m storage pdf manual download. Ug406, virtex6 fpga memory interface solutions user guide 3. What is the oracle dual port qdr infiniband adapter m3. Qdr sram is true dualport although the address bus is still shared, which gives this memory a high bandwidth, allowing backtoback. Memory controller converts the bandwidth engine serial protocol to a fpga parallel qdr like interface to. A qdr ii ram controller for the virtex 6 fpga family. Ddrqdr memory interface design problem ddr andor quad data rateqdr memory devices provide and accept sourcesynchronous data at twice the rate of the devices clock frequency.

The adapter is engineered to deliver the best performance for oracle software and improve security in virtualized, multitenant environments. While each interface is uniquely interesting, this paper will focus on the design issues involved with the implementation of the 500mhz datarate qdr memory and a 1. In such cases, it is necessary to have a wrapper code that can interface with the memory controller core on one end and present a simple and consistent interface to the user logic. The major feature of ddr interface compared to a single data rate sdr one is to use both rising. Xilinx ds176 7 series fpgas memory interface solutions, data.

Plus, designs built using the altera video design framework are open, allowing you to easily replace an altera ip with your own custom function block. The qdr interface is used to exchange a signal with qdr devices. A stepbystep guide to solving qdr memory data capture challenges with virtexii fpgas. The oracle dual port qdr infiniband adapter m3 is a highperformance infiniband host channel adapter hca that is designed to perform optimally in server and storage systems that. Xilinx ml365 virtexii pro qdr ii sram m user manual pdf.

Alteras external memory interface ip is designed to easily interface with todays higher speed memory devices. The connector has all the qdr signals from a single channel and jtag interface. Learning fpga and verilog a beginners guide part 6 ddr. Evaluation of infiniband ddrqdr on intel computing platforms. Altera provides the fastest, most efficient, and lowest latency memory interface ip cores. The d off pin is driven by the interface design and is therefore allocated by the mig tool. Xilinx ultrascale 34length pcie board with quad qsfp. Qdriv sram, and rldram 3 interfaces, see the following. For more details regarding the design, see the zynq7000 soc and 7 series devices memory interface solutions user guide ug586 ref2 provided with the core. Qdr cybersecurity best practices man00462 revision 008 4 1. Data sent by the application software interfaced passed on to the fpga via usb connection.