LatticeECP3设计的FPGA视频协议开发技术

本文介绍了LatTIceECP3 FPGA系列主要特性，LatTIceECP3-35简化方框图以及LatTIceECP3视频协议板主要特性，方框图和详细的电路图。

LatTIceECP3主要特性：

Higher Logic Density for Increased System Integration

• 17K to 149K LUTs

• 133 to 586 I/Os

Embedded SERDES

• 150 Mbps to 3.2 Gbps for Generic 8b10b, 10-bit SERDES, and 8-bit SERDES modes

• Data Rates 230 Mbps to 3.2 Gbps per channel for all other protocols

• Up to 16 channels per device: PCI Express, SONET/SDH, Ethernet (1GbE, SGMII, XAUI), CPRI, SMPTE 3G and Serial RapidIO

sysDSP™

• Fully cascadable slice architecture

• 12 to 160 slices for high performance multiply and accumulate

• Powerful 54-bit ALU operations

• Time Division Multiplexing MAC Sharing

• Rounding and truncation

• Each slice supports

–Half 36x36, two 18x18 or four 9x9 multipliers

–Advanced 18x36 MAC and 18x18 Multiply-Multiply-Accumulate (MMAC) operations

Flexible Memory Resources

• Up to 6.85Mbits sysMEM™ Embedded Block RAM (EBR)

• 36K to 303K bits distributed RAM

sysCLOCK Analog PLLs and DLLs

• Two DLLs and up to ten PLLs per device

Pre-Engineered Source Synchronous I/O

• DDR registers in I/O cells

• Dedicated read/write levelling functionality

• Dedicated gearing logic

• Source synchronous standards support

–ADC/DAC, 7:1 LVDS, XGMII

–High Speed ADC/DAC devices

• Dedicated DDR/DDR2/DDR3 memory with DQS support

• Optional Inter-Symbol Interference (ISI)  correction on outputs

Programmable sysI/O™ Buffer Supports Wide Range of Interfaces

• On-chip termination

• Optional equalization filter on inputs

• LVTTL and LVCMOS 33/25/18/15/12

• SSTL 33/25/18/15 I, II

• HSTL15 I and HSTL18 I, II

• PCI and Differential HSTL, SSTL

• LVDS, Bus-LVDS, LVPECL, RSDS, MLVDS

Flexible Device Configuration

• Dedicated bank for configuration I/Os

• SPI boot flash interface

• Dual-boot images supported

• Slave SPI

• TransFR™ I/O for simple field updates

• Soft Error Detect embedded macro

System Level Support

• IEEE 1149.1 and IEEE 1532 compliant

• Reveal Logic Analyzer

• ORCAstra FPGA configuration utility

• On-chip oscillator for initialization & general use

• 1.2V core power supply

LatticeECP3™系列选择指引表：



图1。LatticeECP3-35简化方框图（顶层）

LatticeECP3视频协议板

LatticeECP3 Video Protocol Board
The LatticeECP3™ FPGA family includes many features for video applications. For example, DisplayPort, SMPTE standards (SD-SDI, HD-SDI and 3G-SDI), DVB-ASI, DVI and HDMI can be implemented with 16 channels of embedded SERDES/PCS. 7:1 LVDS video interfaces like ChannelLink and CameraLink can be supported by the generic DDRX2 mode on the I/O pins. When configuring to TRLVDS mode, the I/O pins on banks 0 and 1 can also be used to receive the TMDS signals of DVI or HDMI video standard.

This user’s guide describes revision C of the LatticeECP3 Video Protocol Board featuring the LatticeECP3 LFE3-95E-7FN1156C FPGA device. The stand-alone evaluation PCB provides a functional platform for development and rapid prototyping of many different video applications.

图2。LatticeECP3视频协议板外形图-Rev.C

主要特性：

• Video interfaces for interconnection to video standard equipment

• Allow the demonstration of SD/HD/3G-SDI, DisplayPort and PCI Express (x4) interfaces using SERDES channels

• High speed Mezzanine connector connected to SERDES channels for future expansion

• Allows the demonstration of LVDS video standards – ChannelLink and CameraLink

• Allows control of SERDES PCS registers using the Serial Client Interface (ORCAstra)

• Allows the demonstration of receiving TMDS signals using the DVI interface

• On-board Boot Flash with Serial SPI Flash memory device

• Shows interoperation with high performance DDR2 memory components

• Driver-based “run-time” device configuration capability via an ORCAstra or RS232 interface

• SMAs for external high-speed clock / PLL inputs

• Switches, LEDs and LCD display header for demo purposes

• Mictor connector for using Logic Analyzer in the debugging phase

• Input connection for lab-power supply

• Power connections and power sources

• ispVM™ programming support

• On-board and external reference clock sources

• Various high-speed layout structures

• User-defined input and output points

• Performance monitoring via test headers, LEDs and switches


图3。LatticeECP3视频协议板-Rev. C功能框图

 图4。DisplayPort 视频接口方框图

图5。LatticeECP3视频协议板方框图

图6。LatticeECP3视频协议板电路图-电源

图7。LatticeECP3视频协议板电路图-电源管理

图8。LatticeECP3视频协议板电路图-FPGA电源

图9。LatticeECP3视频协议板电路图-FPGA配置

图10。LatticeECP3视频协议板电路图-SERDES

图11。LatticeECP3视频协议板电路图-DDR2存储器

图12。LatticeECP3视频协议板电路图-DVVLCD/RS232

图13。LatticeECP3视频协议板电路图-通路/照相机连接

图14。LatticeECP3视频协议板电路图-TI ADC/CLOCK

图15。LatticeECP3视频协议板电路图-LED/开关

图16。LatticeECP3视频协议板电路图-SDI驱动/均衡器

图17。LatticeECP3视频协议板电路图-SDI基准时钟控制

图18。LatticeECP3视频协议板电路图-SRI Rx基准时钟

图19。LatticeECP3视频协议板电路图-SRI Tx基准时钟