SD 基于引用 verilog CRC7 计算器

说明：  该程序包是SD卡/MMC卡控制器SDC的verilog语言包，它包括以下4部分：RTL源代码，测试平台，软件仿真文件，说明文件。(This source package is the SD card and MMC card controler model based on the Verilog language. It has the following 4 parts: RTL language, testbench, software simulating files and help document.)

异步FIFO，包括测试代码，可直接使用，测试时使能读写命令winc和rinc信号恒为1，测试其读写能力。

verilog 有符号数 乘法器模块(verilog signed multiplyer)

说明：  38译码器，D触发器，全加器，计数器，抢答器，优先编码器，111序列检测器，并行输入转串行输出(poor English. 38 decoder, D trigger, full adder, counter, scrambler, priority encoder, 111 sequence detector, parallel input to serial output)

60进制计数器,（由一六进制和十进制连线组成）(60 binary counter (hexadecimal and decimal by a connection form))

说明：  该源代码包是AHB总线到Wishbone总线的交接器，包括以下4个部分：RTL源代码，测试平台，软件测试程序，说明文档。(This source package is the AHB bus to Wishbone bus bridge(wrapper).It has the following 4 parts: RTL codes, testbench, software simulating files, help documents.)

D触发器程序，适合初学者使用和学习，Verilog hdl语言的，使用Xillinx公司的芯片。

ATM的功能工作.atmatmamtmtmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

说明：  NCO生成原理接介绍、CORDIC算法原理介绍以及MATLAB与Verilog语言实现(Introduction to NCO generation principle)

利用verilog实现对SD卡的控制，可以实现对SD卡的读写。(Verilog SD)