Xilinx pll deskew pdf

Ppt xilinx virtex5 fpga clocking powerpoint presentation. Ldi lvds display interface extends this technology to desktop applications, supporting highresolution panels qxga, and enhances the cable drive capability to provide a. Lowest price and power for high volume and consumer applications. The xstools from xess provide utilities for downloading the bitstream into the fpga on the xsa board. Pll clocks are used when the system needs to minimize the propagation delay. Goldie interface products, national semiconductor corp. Introduction altera emif ips have an optional example design to demonstrate a complete interface solution this design can be used by customers for initial interface validation arria 10 example design improvements faster generation automatic pin assignments. The incoming clock signal needs to pass through an input delay block to balance datapath delays and a bufio2 to reach the pll. The different families in the 7 series provide solutions to address the different priceperformancepower requirements of the fpga market artix7 family. Xilinx virtex5 fpga clocking vlsi systems i clock management tiles cmts cmts provide flexible, highperformance clocking each cmt contains two digital clock managers dcms and one pll dcms provide following features.

A free powerpoint ppt presentation displayed as a flash slide show on id. Xilinx spartan6 fpga xilinx 44744xilinx spartan6 fpga spartan6. Except as stated herein, none of the design may be copied, reproduced, distributed. Reference design analysis directory code, compliant digital clock data recovery cdr circuit and jitter attenuator for 2. Xilinx ise provides the hdl and schematic editors, logic synthesizer, fitter, and bitstream generator software. Programmable logic design grzegorz budzy n lecture 10. Advance product specification 3 r 550 mhz integrated block memory up to 10. Xilinx xapp462 using digital clock managers dcms in. Logicore ip product guide vivado design suite pg083 december 5, 2018 notice. The receiver clock is multiplied as required in the pll to generate an internal single datarate capture clock. Xc5vlx50t1ffg16c xilinx inc, xc5vlx50t1ffg16c datasheet. Analog solutions for xilinx fpgas a message from the vice president, portfolio and solutions marketing, xilinx, inc. Xilinx wp324 new high speed broadcast video connectivity. Ppt xilinx virtex5 fpga clocking powerpoint presentation free to download id.

The software used to write the vhdl code and program the cpld is the free xilinx ise software called webpack. Xilinx xapp553 scalable serdes framer interface sfis. Xc5vlx301ff324i xilinx inc, xc5vlx301ff324i datasheet. Xilinx ug480 7 series fpgas xadc dual 12bit 1msps analog. Arria 10 external memory interface design guidelines. Ic fpga virtex5 50k 16fbga online from elcodis, view and download xc5vlx50t1ffg16c pdf datasheet, embedded fpgas field programmable gate array specifications. Constraining and analyzing sourcesynchronous interfaces may 2016 an4332. It is the clock source for the ov erall clocking circuitry in the clock generator core. This book helps readers to implement their designs on xilinx fpgas. The clock generator core design framework is shown in figure 1 and described in the following sections. Xilinx xapp1026 lightweight ip lwip application examples. View and download xilinx inc xc5vlx301ff324i datasheet at elcodis. Abstract lvds is the indisputable defacto standard for notebook digital displays today.

Dual 12bit 1msps analogtodigital converter user guide ug480 v1. It is able to do this by acting as a phase detector to keep an input clock in. An nbit wide sfis configuration contains n data channels and one control channel for interface skew compensation. Clock deskewing via contained dll frequency synthesis by integer multiplication and division phase shifting. Xilinx xapp553 scalable serdes framer interface sfis for 7. One pll per interface at postfit, it is possible for interfaces to share the same bank pll pll reset only occur during powerup issue a recalibration request peremif interface in place of a pll reset emif external memory interfaces 25. In this usage, it has the ability toprovide a divided clock and send aserdes strobe. Data reception using pll and bufpll the topology for data reception using pll and bufpll is uncomplicated. Nonpll clocks are used when the time delay between source and output, known as a propagation delay, is not important to the system. Revised polarity from independent to programmable in control signals, page 22. The authors demonstrate how to get the greatest impact from using the vivado design suite, which delivers a socstrength, ipcentric and systemcentric, next generation development environment that has been built from the ground up to address the productivity bottlenecks in systemlevel integration and implementation. Xilinx ug480 7 series fpgas xadc dual 12bit 1msps analogto.

Clock deskew with ultrascale pll community forums xilinx. Thebufio2 is also a dedicated buffer for high speed io clocks used to clock the ioserdes. Clock input the clock generator core has one input clock port, clkin. Xilinx is disclosing this user guide, manual, release note, andor specification the documentation to you solely for use in the development of designs to operate with xilinx hardware devices. Xilinx xapp174 using delaylocked loops in spartanii fpgas. It is possible to use a different cpld or even fpga board than the home made board, in this case the examples will need to be modified to run on the alternate board. Ug190 virtex5 fpga user guide computer engineering. Summary the scalable serdes framer interface sfis is an optical internetworking forum oif standard that defines the electrical connections between devices on a typical optical communications line card. Constraining and analyzing sourcesynchronous interfaces. Xilinx xapp174 using delaylocked loops in spartanii.

Zynq ps pll configuration hello, i am trying to run my pl design from a 120mhz or maybe 150mhz clock and i would like the as many of the axi peripherals to be integer divisors of the axi clock to keep the logic smaller and the latencies as well. Some fpgas have both dcm digital clock manager and pll phase lock loop for use in internal clock generation. The driving clock for the clock input can be from the offchip or inchip source. Vhdl course using a xilinx cpld board starting electronics. Pll master timing functions write leveling multicycle dll write data eye per rank read data eye jitter measurement multicycle dll gate training clock deskew ddr 43 phy automatic deskew tuning complete phy flexibility timing closure instrumentation skew can reduce sso stateoftheart tuning is the key to a high performance. The deskew algorithm realigns the data, and four independent streams are merged into one before being descrambled. Hdl coding practices to accelerate design performance example two rewriting this same code with a synchronous reset gives the synthesis tool more flexibility in implementi ng this function. Contribute to xilinxlinuxxlnx development by creating an account on github. Each output phase can be selected as the reference clock to the output counters the counter m controls the feedback clock of the pll allowing a wide range of frequency synthesis. Echo server web server r e v r e s p t f t tcp rx throughput test tcp tx throughput test all of these applications are available in both raw and socket modes. Analog solutions for xilinx fpgas maxim integrated.

The plls differ from the mmcm in number of outputs, cannot deskew clock nets. So i would like to use pll to delay rxc input clock by the 90dg 10ns shift to capture data at the cente. The deskew circuit compensates for the delay on the routing network by monitoring an output clock, either the clk0 or the clk2x. Xilinx platform usb cable rs232 usb cable a crossover ethernet cable connecting the board to a windows or linux host serial communications utility program, such as hyperterminal or teraterm xilinx platform studio. Each cmt contains two digital clock managers dcms and one pll. Pll block diagram the vco produces eight output phases. Clarified bufpll locked routing restrictions in bufpll. Multiply or divide an incoming clock frequency or synthesize a completely new. This phase detector whether implemented as a exor phase detector, a jk. For usage with the dcm or pll, it is part of thededicated inputrouting and deskew path used toin conjunction withthedcm andor pll.