The ddr phy interface dfi is an interface protocol that defines the. Connecting two 16 mb x 16 x 8 banks 4gb total devices. Example systemlevel block diagram benefits derived from cadences siliconproven ddr and lpddr ip designs achieves highest data rates with detailed system guidelines delivers maximum system margin with advanced clocking and io architectures. The ddr phy ip is a highperformance dqsdelay architecture that. Ddrphy interoperability using dfi vip central blogs synopsys. The innosilicon gddr6 phy is the worlds first silicon proven commercial gddr6 ip, it is fully compliant to the jedec gddr6 jesd250 standard, supporting up to 16 gbps per pin. Alternatively, the decoder can also be fully implemented in software on an altera nios or arm cortexm1 embedded processor. Dp83822h extended temperature, robust lowpower 10100. Marvell mv78100 soc with sheeva technology discovery innovation series product overview the mv78100 is a highperformance, lowpower, highly integrated processor with the. Xilinx answer record 51204 mig 7 series ddr2ddr3 phy only. The ddr phy ip consists of a dfi interface to the memory controller, external register interface configuration and test, phy control block initialization and calibration logic, and configurable data slices. The ddr phy ip is designed to connect seamlessly and work with thirdparty, dficompliant memory controllers. The ddr phy interface dfi is an interface protocol that defines the connectivity between a ddr memory controller mc and a ddr physical interface phy.
Supports nv ddr mode of operation supporting up to 100mhz. Offered as a total ip solution including rtl host controller ip, verification ip and esl models, software stack, and hardware development platform. Highperformance ip video phone system block diagram usb 1 usb 2 usb phys mddr optional ccd camera or, phone system block diagram keypad usb optional ir control optional msp430 optional rtc, phone system block diagram spi eeprom boot rom ddr sdram 266 32bit spi ddr2 emif, network penetration, ip video phone demand continues to. Ddr3 memory interface on xilinx zynq soc free software compatible by andrey filippov external memory controller is an important part of many fpgacentered designs, it is true for elphel cameras too. Ddr 43 phy the tci ddr phy is a highperformance, scalable system using a radically new architecture that continuously and automatically adjusts each pin individually, correcting skew within byte lanes. Design and verification of a dfiaxi ddr4 memory phy bridge. Denali gen2 highspeed ddr phy ip with lpddr4x for tsmc overview todays consumers generate and consume large volumes of data and video, exploding the required capacity and bandwidth for device memory. Dfi is applicable to all dram protocols including ddr4, ddr3, ddr2, ddr, lpddr4, lpddr3, lpddr2 and lpddr. Optimized for high data bandwidth, low power and enhanced signaling features, the complete designware ddr memory interface ip solution includes a choice of scalable digital controllers, an integrated hard macro phy delivering memory system performance of up to 6400 mbps, and verification ip.
Phy control block the ddr phy ip control block provides initialization and calibration logic for training the dqs alignment for each data slice. Phy controlstatus manager this block manages axi4lite bus protocol accesses and handles memory map accesses and interrupt management. The protocol defines the signals, signal relationships, and timing parameters required to transfer control information, read and write data to and from the dram devices over the dfi. Understanding ddr memory training librecoreorglibrecore wiki.
Timing closure memory controller to phy timing closure is eased by a localized interface and clock deskew circuitry instrumentation phy resources can measure data eye and jitter per pin, speeding up board bringup. In this paper, the ddr phy interface dfi to advanced extensible interface axi bridge is designed to support a ddr4 memory subsystem design. You can use it as a flowchart maker, network diagram software, to create uml online, as an er diagram tool, to design database schema, to build bpmn online, as a circuit diagram maker, and more. Practical design and implementation of a configurable ddr2 phy.
The ddr4 multiphy ip supports ddr4 sdram speeds from ddr433 through ddr42667, ddr3 sdram speeds from ddr3666 to ddr323, lpddr2 sdrams from 0 to 1066 mbps. Design and verification of a dfiaxi ddr4 memory phy. Once implemented in the chip, the ddr multiphy allows the specific ddr type supported in a system to be programmed via simple software control. This stateoftheart tuning acts independently on each pin, data. Note the strong similarity to the analog receiver diagram all of the basic principles of analog receivers still apply. Ddr phy supports an ongoing measurement process, to determine what is the time delay of the basic. It is important to note that answer records are webbased content that are frequently updated as new information becomes available.
Supports dram burst lengths of 4, 8, or 16, depending on configured buswidth mode and ddr type mddr block diagram. The ddr phy interface dfi is an interface protocol that defines the connectivity between a ddr memory controller mc and a ddr physical interface phy for ddr memory devices. This block contains the software accessible registers. The mig 7 series ddr3ddr2 ip logicore is provided as a full memory interface design with. The ddr3 phy ip provides the industry standard ddr phy interface dfi bus at. Availability the ddr phy ip is available with various configurations and supports the following protocols. Basics of software radio figure 3 figure 4 digital receiver block diagram take a look at the digital receiver block diagram shown in figure 3. The ddr32 phy ip supports the entire range of ddr3 sdram speeds, from ddr3800 through ddr323, with backward compatibility provided for ddr2667. While still very useful for testing and software development, this low operating speed creates. Block diagram of the lpddr3ddr3 phy 71153 lpddr3ddr3. The cadence denali ddr controller ip continues to evolve and meet or exceed ddr dram subsystem designer requirements. Tps51200 3a sinksource ddr termination regulator w.
This bridge module is developed based on the ddr phy interface version 5. The gddr6 interface supports 2 channels, each with 16 bits for a total data width of 32 bits. The dp83822 is a low power singleport 10100 mbps ethernet phy. Figure 1 mig controller and phy interface block diagram. Schematic block diagram bill of materials layer plot assembly drawings cad files gerber files.
This option is available on the fpga options screen of the mig 7 series tool. Optimized for high data bandwidth, low power and enhanced signaling features, the complete designware ddr memory interface ip solution includes a choice of scalable digital controllers, an integrated hard macro phy delivering memory system performance of up. The ddr phy ip is engineered to quickly and easily integrate into any systemonchip soc, and is verified with the denali ddr controller ip as part of a complete memory subsystem solution. This downloadable pdf of an answer record is provided to enhance its usability and readability. The ps incorporates both the ddr controller and the associated phy, including its own set of dedicated ios. There are many good reasons for implementing a full custom. Ddr3 memory interface speeds up to 533mhz 1066mbs are. The sdram is ddr3 double data rate 3 1066max type and uses a 16bit data. I am bit confused where does the dfi fit into the entire system. The ddr multiphy is an area and featureoptimized phy that is ideal for designers who require flexibility in regard to the type and number of ddr interfaces for their socs.
The implementation on an altera cycloneiii fpga or on an altera nios or arm cortexm1 embedded processor addresses low power and costsensitive requirements. Keystone architecture ddr3 memory controller users guide literature number. Armv5te sheeva home security system block diagram marvell mv78200 mv78200 ddr phy asic marvell flash controller pcie 32kbinstruction ddr2800 marvell soc text. Mx53 ddr phy calibration can also be perfor med as a onetime event, by writing selected zq. A ddr2 high speed phy block is almost always developed as a full custom mixed signal design. Is there a architecture specification available for ddr phy desgin. Program the ddr phy control register ddrphycr by setting the read latency readlat bits to.
Rtc ddr nand poe sd card buffer usb minib power bnc codec video out dm355 asp vpbe vpfe gpio usb uart emif mmcsd i c2 ddr 10100 mac phy sensor rs232 xcvr base dm355 ip camera reference design block diagram. The first component is the physical layer, phy, which provides all physical layer functions. Product specification figure 23 shows an overview of the internal structure of the video phy controller core. Libero soc design software integrates industry leading synthesis. These subsystems include a ddr memory controller, ddr phy, and arbitration logic to support multiple masters. The ddr3 phy ip provides the industry standard ddr phy interface. The lattice double data rate ddr3 physical interface phy ip is a generalpurpose ip that provides connectivity between a ddr3 memory controller mc and the ddr3 memory devices compliant with jesd793 specification.