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并行總線PATA從設計至今已快20年歷史，如今它的缺陷已經嚴重阻礙了系統(tǒng)性能的進一步提高，已被串行ATA(Serial ATA)即SATA總線所取代。SATA作為新一代磁盤接口總線，采用點對點方式進行數據傳輸，內置數據/命令校驗單元，支持熱插拔，具有150MB/s(SATA1.0)或300MB/s(SATA2.0)的傳輸速度。目前SATA已在存儲領域廣泛應用，但國內尚無獨立研發(fā)的面向FPGA的SATAIP CORE，在這樣的條件下設計面向FPGA應用的SATA IP CORE具有重要的意義。 本論文對協(xié)議進行了詳細的分析，建立了SATA IP CORE的層次結構，將設備端SATA IP CORE劃分成應用層、傳輸層、鏈路層和物理層；介紹了實現該IPCORE所選擇的開發(fā)工具、開發(fā)語言和所選用的芯片；在此基礎上著重闡述協(xié)議IP CORE的設計，并對各個部分的設計予以分別闡述，并編碼實現；最后進行綜合和測試。 采用FPGA集成硬核RocketIo MGT(RocketIo Multi-GIGABIT Transceiver)實現了1.5Gbps的串行傳輸鏈路；設計滿足協(xié)議需求、適合FPGA設計的并行結構，實現了多狀態(tài)機的協(xié)同工作：在高速設計中，使用了流水線方法進行并行設計，以提高速度，考慮到系統(tǒng)不同部分復雜度的不同，設計采用部分流水線結構；采用在線邏輯分析儀Chipscope pro與SATA總線分析儀進行片上調試與測試，使得調試工作方便快捷、測試數據準確；嚴格按照SATA1.0a協(xié)議實現了SATA設備端IP CORE的設計。 最終測試數據表明，本論文設計的基于FPGA的SATA IP CORE滿足協(xié)議需求。設計中的SATA IP CORE具有使用方便、集成度高、成本低等優(yōu)點，在固態(tài)電子硬盤SSD(Solid-State Disk)開發(fā)中應用本設計，將使開發(fā)變得方便快捷，更能夠適應市場需求。
標簽：
SATA
FPGA
協(xié)議分析
上傳時間：
2013-06-21
上傳用戶：xzt
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This document presents design techniques and reference circuits that power Virtex™-4 FXRocketIO™ multi-GIGABIT transceivers (MGTs) operating at data rates below 3.125 Gb/s.When using multiple transceivers, it is sometimes preferred to power them from a switchingpower supply. However, switching power supplies generate noise that affects transceiver
標簽：
RocketIO
Virtex
XAPP
946
上傳時間：
2013-11-18
上傳用戶：huang111
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中文版詳情瀏覽：http://www.elecfans.com/emb/fpga/20130715324029.html
Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture
The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications.
The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation.
Some of the UltraScale architecture breakthroughs include:
• Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50%
• Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability
• Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization
• 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard
• Greatly increased system performance, including multi-GIGABIT serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets
• Greatly enhanced DSP and packet handling
The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.
標簽：
UltraScale
Xilinx
架構
上傳時間：
2013-11-13
上傳用戶：瓦力瓦力hong
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The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function
Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, GIGABIT Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts
標簽：
Transceiver
Virtex
Wizar
GTP
上傳時間：
2013-10-23
上傳用戶：leyesome
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This application note describes a reference system which illustrates how to build an embeddedPowerPC® system using the Xilinx 1-GIGABIT Ethernet Media Access Controller processor core.This system has the PLB_Gemac configured to use Scatter/Gather Direct Memory Access andthe Serializer/Deserializer (SerDes) interface. This application note describes how to set up thespecific clocking structure required for the SerDes interface and the constraints to be added tothe UCF file. This reference system is complete with a standalone software application to testsome of the main features of this core, including access to registers, DMA capabilities, transmitand receive in loopback mode. This reference system is targeted for the ML300 evaluationboard.
標簽：
SerDes
PLB
MAC
接口
上傳時間：
2013-11-01
上傳用戶：truth12
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The Tri-Mode Ethernet MAC (TEMAC) UltraController-II module is a minimal footprint,embedded network processing engine based on the PowerPC™ 405 (PPC405) processor coreand the TEMAC core embedded within a Virtex™-4 FX Platform FPGA. The TEMACUltraController-II module connects to an external PHY through GIGABIT Media IndependentInterface (GMII) and Management Data Input/Output (MDIO) interfaces and supports tri-mode(10/100/1000 Mb/s) Ethernet. Software running from the processor cache reads and writesthrough an On-Chip Memory (OCM) interface to two FIFOs that act as buffers between thedifferent clock domains of the PPC405 OCM and the TEMAC.
標簽：
XAPP
807
MAC
封裝
上傳時間：
2013-10-26
上傳用戶：yuzsu
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Today in many applications such as network switches, routers, multi-computers,and processor-memory interfaces, the ability to integrate hundreds of multi-GIGABIT I/Os is desired to make better use of the rapidly advancing IC technology.
標簽：
時鐘恢復
英文
上傳時間：
2013-10-30
上傳用戶：ysjing
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中文版詳情瀏覽：http://www.elecfans.com/emb/fpga/20130715324029.html
Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture
The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications.
The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation.
Some of the UltraScale architecture breakthroughs include:
• Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50%
• Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability
• Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization
• 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard
• Greatly increased system performance, including multi-GIGABIT serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets
• Greatly enhanced DSP and packet handling
The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.
標簽：
UltraScale
Xilinx
架構
上傳時間：
2013-11-21
上傳用戶：wxqman
-
The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function
Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, GIGABIT Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts
標簽：
Transceiver
Virtex
Wizar
GTP
上傳時間：
2013-10-20
上傳用戶：dave520l
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A decade ago, I first wrote that people moved, and networks needed to adapt to the
reality that people worked on the go. Of course, in those days, wireless LANs came
with a trade-off. Yes, you could use them while moving, but you had to trade a great
deal of throughput to get the mobility. Although it was possible to get bits anywhere,
even while in motion, those bits came slower. As one of the network engineers I worked
with put it, “We’ve installed switched GIGABIT Ethernet everywhere on campus, so I
don’t understand why you’d want to go back to what is a 25-megabit hub.” He un-
derestimated the allure of working on the go.
標簽：
Survival
802.11
Guide
上傳時間：
2020-05-26
上傳用戶：shancjb
