Multiple assign statements targeting the same wire, Computer Engineering

Assignment Help:

What logic is inferred when there are multiple assign statements targeting the same wire?

It's illegal to specify multiple assign statements to the same wire in a synthesizable code that will become  an  output  port  of  module.  Synthesis  tools  give  a  syntax  error  that  a  net  is  being driven by more than one source.

Illegal Code

Wire temp;

Assign temp = in1 & in2;

Assign temp = in3 & in4;

However, it is legal to drive a three-state wire by multiple assign statements.

Legal code

Wire temp;

Assign temp = enable1? (In1 & in2): 1'bz;

Assign temp = enable2? (In3 & in4): 1'bz

 


Related Discussions:- Multiple assign statements targeting the same wire

Target _self, TARGET = "_self" "_self" puts the new document in the s...

TARGET = "_self" "_self" puts the new document in the same window and frame as current document. "_self" works the same as if you hadn't used TARGET at all.

Generation of erp products, 1. How does this new generation of ERP products...

1. How does this new generation of ERP products differ from traditional solutions? 2. What are the major external forces driving competition in the ERP industry? Cloud comput

Explain opening files for reading only in c, Opening Files for Reading Only...

Opening Files for Reading Only     : A data file is a file that you can open and read its contents visually - for example, C source files, .dat files, HTML etc - anything that look

Scientific applications-image processing, Scientific Applications/Image pro...

Scientific Applications/Image processing Most of parallel processing functions from science and other academic subjects, are mainly have based upon arithmetical simulations whe

Which header file is used for screen handling function, Which header file i...

Which header file is used for screen handling function:- The header files stdio.h having definitions of constants, macros and types, along with function declarations for stan

Illustration of a memory organization, Q. Illustration of a memory organiza...

Q. Illustration of a memory organization? Let's consider an illustration of a memory organization as displayed in Figure below in that main memory can store 32K words of 12 b

Operating-systems/Linux, sir, please give me an source code program for Hie...

sir, please give me an source code program for Hierarchial-Directory-system using any Unix/Linux

Give example of real time processing, Give example of Real time (transactio...

Give example of Real time (transaction) processing Using this illustration of booking seats on a flight, below sequence of events would occur: -  Customer/travel agent conta

Explain time division switching, Explain Time Division Switching. Ti...

Explain Time Division Switching. Time Division Switching: A switching component can be shared at the same time with number of active speech circuits. It is the principle of

What are the page headers for secondary lists, What are the page headers fo...

What are the page headers for secondary lists? On secondary lists, the system does not show a standard page header and it does not trigger the event. TOP-OF-PAGE.  To make page

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd