由Xilinx公司编写的VHDL设计规范

lubin39

非常详尽专业的VHDL代码设计资料，全英文版，供大家观阅参考。

mscyc0909

Manual Contents
This manual covers the following topics.
• Chapter 1, “Using Foundation Express with VHDL,” discusses
general concepts about VHDL and the Foundation Express
design process and methodology.
• Chapter 2, “Design Descriptions,” describes the use and importance
of hierarchy in VHDL design entities.
• Chapter 3, “Data Types,” describes VHDL data types and their
uses.
• Chapter 4, “Expressions,” discusses individual components of
expressions and how to use them.
• Chapter 5, “Sequential Statements,” describes and illustrates the
various types of sequential statements.
• Chapter 6, “Concurrent Statements,” defines and illustrates
concurrent statements and their function.
• Chapter 7, “Register and Three-State Inference,” illustrates how
to write VHDL descriptions to produce efficient synthesized
circuits.
• Chapter 8, “Writing Circuit Descriptions,” describes how to write
a VHDL description to ensure an efficient implementation.
• Chapter 9, “Foundation Express Directives,” explains how to use
Foundation Express directives and Xilinx-defined VHDL
attributes to provide circuit design information directly into the
VHDL source code.
• Chapter 10, “Foundation Express Packages,” discusses the
contents of three VHDL packages included with this release that
are a combination of standard IEEE packages and Synopsys
packages that have been added to the standard IEEE package.
• Chapter 11, “VHDL Constructs,” provides a list of all VHDL
language constructs with the level of support for each one and a
list of VHDL reserved words.
• Appendix A, “Examples,” presents examples that demonstrate
basic concepts of Foundation Express.

who1234

很好的参考。。。。。

cumt_lijunjie

谢谢楼主！！！

wen1316

谢谢，正好用xilinx的板子

wuliaoft

很好的参考。。。。。

haojinweiwei

非常感谢！

bunengwang

下的太多了，快没有钱了，唉。

BIGHAMMER

很好的资料，

BIGHAMMER

确实不错，谢谢