I2C主实现用有限状态机

说明：  URISC的RTL级设计，Verilog代码(Design: URISC RTL Verilog)

说明：  编码方式为213的Viterbi卷积码编码器和译码器的FPGA的实现，包含整个QuartusＩＩ的工程文件，解码方式为寄存器交换法(Encoding for the 213 convolutional code encoder and Viterbi decoder FPGA realization of the project file that contains the entire QuartusII, decoding method for the register exchange)

8位突发长度，一次64bit数据读写，MIG核(DDR3 controll implimention)

说明：  HDB3编码Quartus2 10.0的工程，modelsim仿真，有实物图、仿真图以及源程序，适合做通信原理课程设计的同学参考使用(HDB3 encoding Quartus2 10.0 project, modelsim simulation, there are physical map, simulation diagrams and source code, suitable for students of communication theory courses designed for reference use)

10_100_1000 Mbps tri-mode ethernet MAC implements a MAC controller conforming to IEEE 802.3 specification. It is designed using less than 2000 LCs/LEs to implement full function. It will use inferred PADs to reduce technology dependancies. The whole project will be finished in TEN weeks inluding verilog coding,RTL level verification. A GUI configuration interface,created by tcl/tk script language,is convenient for configuring optional modules,FiFo depth and verifcation parameters. Furthermore,a verifcation system was designed with tcl/tk user interface,by which the stimulus can be generated automatically and the output packets can be verified with CRC-32 checksum.

异步fifo，实现的方法是MSB，满足慢时钟域到跨时钟域的数据传输，也满足快时钟域到慢时钟域的数据传输。

TDM，就是时分复用。本程序完成4通道，没通道最多32路64K信号的交换，就是说可以完成32x4个电话信号交换(TDM, is time-division multiplexing. The process is complete 4-channel, no channel up to 64K 32 to exchange signals, that can be done 32x4 telephone signal exchange)

actel flash rom使用 actel flash rom使用(actel flash rom actel flash rom)

基于fpga的spi  master  testbench，             适合初学者

In computer storage, multipath I/O is a fault-tolerance and performance enhancement technique whereby there is more than one physical path between the CPU in a computer system and its mass storage devices through the buses, controllers, switches, and bridge devices connecting them