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

Explain traffic intensity in networking, Explain Traffic Intensity in netwo...

Explain Traffic Intensity in networking. Traffic Intensity: The traffic load on a given network may be on interoffice trunk lines, the local switching unit or other common s

Explain internal organization of bit cells in a memory chip, Explain with n...

Explain with neat diagram the internal organization of bit cells in a memory chip. Memory cells are usually organized in the form of an array, in which every cell is capable of

Explain 100 line exchange with two-motion line finders, Explain 100 line ex...

Explain 100 line exchange with two-motion line finders. Design: In such design, here are 24 line finders. When any of the 100 subscribers has to find access to any of the 24

Binary search tree in the descending order, In order to get the information...

In order to get the information kept in a Binary Search Tree in the descending order, one should traverse it in which of the following order?    Right, Root, Left

Define the three prime processes of UML, Define the three prime processes o...

Define the three prime processes of uml The three prime processes were OMT (Rumbaugh), OOSE (Jacobson) and Booch. OMT was strong in analysis, while Booch was strong in design a

Using information in information system, Using Information in Information S...

Using Information in Information System Information Systems can be thought of as being useful at three levels:  The detail level where information is used to carry out disc

Truth tables - artificial intelligence, Truth Tables - artificial intellige...

Truth Tables - artificial intelligence: In propositional logic, where we are limited to expressing sentences where propositions are true or false - we can check whether a speci

Illustrate about direct addressing mode, Q. Illustrate about Direct Address...

Q. Illustrate about Direct Addressing mode? In this technique operand field of instruction specifies direct address of intended operand for example if instruction LOAD 500 uses

Programming a 64-bit processor, You are to write a C program called big_mul...

You are to write a C program called big_mult.c that multiplies two unsigned 64-bit integers, x and y, read from the command line. The output is a pair of unsigned 64-bit integers r

Explain multiple instruction and single data stream (misd), Multiple Instru...

Multiple Instruction and Single Data stream (MISD): In this type of organization multiple processing elements are ordered under the control of multiple control units. Every contro

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