资料下载
LPM Quick Reference Guide
李军
分享资料个
LPM Quick Reference Guide
December 1996
LPM Features
The primary objective for the LPM is to enable architecture-independent
design without sacrificing efficiency. The LPM meets the following key
criteria:
n
Architecture-independent design entry
—Designers can work with LPM
functions during design entry and verification without specifying the
target architecture. Design entry and simulation tools remain
architecture-independent, relying on the synthesis or fitting tools to
efficiently map the design to various architectures.
n
Efficient design mapping
—The LPM allows designers to create
architecture-independent designs without sacrificing efficiency. The
IC vendor is responsible for the mapping of LPM functions; thus,
optimum solutions are guaranteed.
n
Tool-independent design entry
—The LPM enables designers to migrate
designs between EDA tools while maintaining a high-level logic
description of the functions. For example, designers can use one
vendor’s tool for logic synthesis and another vendor’s tool for logic
simulation.
n
Specification of a complete design
—LPM functions completely specify
the digital logic for any design. Designers can create new functions
with LPM functions.
LPM Functions
The LPM presently contains 25 functions. Despite its small size, the LPM
can duplicate the functionality of other design libraries that contain many
more functions; each function contains parameters that allow it to expand
in many dimensions. For example, the
lpm_counter
function allows the
user to create counters with widths ranging from 1 to 256 bits.
In addition to width, the user can specify the features and functionality of
the counter. For example, parameters indicate whether the counter counts
up or down, or loads synchronously or asynchronously. Thus, the single
lpm_counter
function can replace over thirty 74-series counters
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
- 相关下载
- 相关文章
