Qdr memory interface pdf

The qle7340 is a singleport 40 gbps infiniband pci express gen2 x8 host channel. Physical layer interface phy which handles the timing on the data path itself. Evaluation of infiniband ddrqdr on intel computing platforms hari subramoni, matthew koop and dhabaleswar. High speed ddr memory interface design researchgate. Xilinx ds176 7 series fpgas memory interface solutions. Ensuring the integrity of our systems is a top priority for hologic. External memory interfaces in cyclone iv devices, cyclone iv. Implementing a highperformance memory interface such as a ddr or qdr interface can be challenging at both the board and fpga component implementation level. 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. The c and c pins of the qdr ii memory device are tied high in figure 2. The d off pin is driven by the interface design and is therefore allocated by the mig tool. Oracle dual port qdr infiniband adapter m4 data sheet. 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.

In contrast, the only data from memory to the processor is the output data. 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. 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. What is the oracle dual port qdr infiniband adapter m3. 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. This means that data is transferred on the rising and falling. Xilinx ultrascale 34length pcie board with quad qsfp, ddr4. For the latest information and to estimate the external memory system performance specification, use alteras external memory interface spec estimator tool. 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. The ddr interface is used to exchange a signal with ddr devices. Apr 29, 2016 in most cases where memory controllers are available on silicon, the interface may not be readily usable by the users logic. Prior to the electronics industry downturn in 2000, electronic system designers were less concerned with. How to effectively manage timing of fpga design flows 6. Qlogic qle7340 singleport 40 gbps qdr infiniband host.

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. It is meant to be used at the user interface to connect to the user. Alteras external memory interface ip is designed to easily interface with. 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 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. The qdr sram architecture features two data ports operating twice per clock cycle to deliver a total of four data words per cycle. Stepping through the design flow, we implemented a qdr memory controller in a. These challenges will continue to multiply as new memory interface standards are developed. 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. The connector has all the qdr signals from a single channel and jtag interface. There are two target components on the interface a qdrii memory and a content addressable memory cam. Consult the memory manufacturers data sheet to check the memory device characteristics. Regulator provides a compact solution for ddr memory termination pdf.

Implementing a highperformance memory interface such as a ddr or qdr. The intel bkm for this is to provide the ixp28xx qdr interface through a 2 x 57 shrouded 114pin mictor connector. Various boards offer different memory options such as sram, qdr, sdram, flash etc. 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. Onboard memory two banks of up to 16 gb ddr4 x72 flash memory for booting fpga optional sodimm memory ddr4. Home wiki projects qdr ii controller for virtex 6 open. 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. External memory interfaces in cyclone iv devices, cyclone. Memory controller converts the bandwidth engine serial protocol to a fpga parallel qdr like interface to. 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. Blazar be2burst accelerator engine intelligent inmemory. Altera memory solution overview and design flow these mpfe blocks are critical to the design and the use of the memory interface block.

Asbmr 30th annual meeting m001m507 2008 journal of bone and. Optimal memory interface design with xilinx 7 series. Letter qdr odd a pete townshend fave and may giveaway. These cores provide solutions for interfacing with these sdram memory types. Data sent by the application software interfaced passed on to the fpga via usb connection. Qsfpdd supports up to 400 gbs in aggregate over an 8 x 50 gbs electrical interface.

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. Pdf association of physical fitness, body composition. 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. 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. Qdr cybersecurity best practices man00462 revision 008 4 1. Zynq7000 soc and 7 series devices memory interface solutions. Control your qdr designs 00 xcell journal fall 2004. Qdriv sram, and rldram 3 interfaces, see the following. Qdr sram allows access to any two memory locations on every clock cycle, and performance never depends on which memory location was accessed in the previous clock cycle. Xilinx ultrascale 34length pcie board with quad qsfp. Synchronous sram microcontrollers, connectivity, memory. 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 resulting performance increase is particularly valuable in bandwidthintensive.

A stepbystep guide to solving qdr memory data capture challenges with virtexii fpgas. 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. Now how do i ensure the communication between the two worlds. Learning fpga and verilog a beginners guide part 6 ddr. With these higher data rates, the design implementation becomes more complex and more challenging. Zynq7000 soc and 7 series devices memory interface. Hardware and layout design considerations for ddr memory. 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. Xilinx xapp853 qdr ii sram interface for virtex5 devices. Work queue is the consumerproducer interface to the. The ddr and qdr converter has a qdr interface, a ddr interface and a conversion core. 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. This family of network srams, along with double data rate ddr and ddrii srams, provides complete memory solutions for any networking system. The cage and connector design provides backwards compatibility to qsfp28 modules which can be inserted into a qsfpdd.

Availability of sufficient data storage is a very important factor when selecting an fpga development board. Altera provides modular memory solutions that allow you to customize your memory interface design to any of the following. The main purpose of this capability is to enable reads and writes to occur at high clock frequencies without the loss of bandwidth due. Qdriv sram xilinx virtex7 fpga memory interface design. Altera fpgas achieve optimal memory interface performance with external memory ip. Like double datarate ddr sdram, qdr sram transfers data on both rising and falling edges of the clock signal. Qdriila1compliant coprocessor or an upgradable qdr memory module. P6810, p6860, and p680 logic analyzer probes manual.

The cards described in this manual have the following main features. View and download xilinx ml365 virtexii pro qdr ii sram m user manual online. Cathy baker progress qatar 2016 17 by oryx group of magazines issuu. Timing measurement problems and solutions in source. You can use any unused dq pins as regular user io pins if they are not used as memory interface signals. The cypress qdriv sram interface design is a fully synthesizable controller and physical layer phy on xilinx virtex7 fpgas. For signal integrity, the devices are clamshelled to minimize stubbing.

A qdr ii ram controller for the virtex 6 fpga family. The data is accepted within the fpga in a usb controller. This product guide provides information about using, customizing, and simulating a. Ds186, virtex6 fpga memory interface solutions data sheet. 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. 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. 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. For any interface that spans across two different sides, use the wraparound interface performance. Oracle dual port qdr infiniband adapter m4 oracle dual port qdr infiniband adapter m4 brings application acceleration in silicon to the infiniband fabric interface. Qdr sram is true dualport although the address bus is still shared, which gives this memory a high bandwidth, allowing backtoback.

Design guidelines november 2012 feedback subscribe iso 9001. Xilinx ml365 virtexii pro qdr ii sram m user manual pdf. Manual pin placement rules for arria v except arria v gz devices. Ddr qdr memory interface design, export the information as constraint data into ise, and automatically get visual verification of design success. Qdr sram, on the other hand, is designed specifically for maximum rtr.

Us20020174274a1 ddr and qdr converter and interface card. Altera provides the fastest, most efficient, and lowest latency memory interface ip cores. 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. November 2012 altera corporation external memory interface handbook volume 1. A ddr and qdr converter and an interface, a motherboard and a memory module interface using the same.

The following topics provide an overview of alteras external memory interface solutions. 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. Memory controller block which implements all the memory commands and addresses. 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. For the purposes of this design guide, well use a qdr sram device to illustrate a sourcesynchronous interface design. Selecting your memory, external memory interface handbook. Cyclonevdevicedatasheet hps external memory performance table 63. Evaluation of infiniband ddrqdr on intel computing platforms. 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.

Ultrascale architecture fpgas memory interface solutions v7. Xilinx ds176 7 series fpgas memory interface solutions, data. The qdr interface is used to exchange a signal with qdr devices. The cypress qdr iv sram interface design is a fully synthesizable controller and physical layer phy on xilinx virtex7 fpgas. Ml365 virtexii pro qdr ii sram m storage pdf manual download. Hps external memory interface performance the hard processor system hps is available in cyclone v soc devices only. The adapter is engineered to deliver the best performance for oracle software and improve security in virtualized, multitenant environments. The major feature of ddr interface compared to a single data rate sdr one is to use both rising. 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. The conversion core is used to convert qdr command. Alteras external memory interface ip is designed to easily interface with todays higher speed memory devices. Quad data rate qdr sram is a type of static ram computer memory that can transfer up to. A straightforward user interface is provided to allow simple integration into a complete fpga design utilizing one or more qdr ii interfaces. The pinout for the ddr interface facilitates ease of routing to a standard jedec dimm.