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

Parallel ports - micro-controller, The main I/O used by micro controllers a...

The main I/O used by micro controllers are the parallel ports , the 68HC11F1 has seven  8 bit ports namely Port A,B,C,D,E,F and G . The use of ports depends on the mode configurati

Techno hype - obstacle to information system, Techno hype - Obstacle to Inf...

Techno hype - Obstacle to Information System New technology has always been accompanied by a certain amount of euphoria that inevitably leads to unrealistic expectations place

Mobility management in mobile systems, Instruction 1. You can do this i...

Instruction 1. You can do this individually or in groups of 2-3 students. 2. Any material copied and pasted from anywhere (e.g., figures and text) is considered plagiarism even

The javascript validation not run on the asp.net, Why The JavaScript Valida...

Why The JavaScript Validation Not Run on the Asp.Net? The Asp.Net Button Is post backed on the server & not yet Submit & when it goes to the server its states is lost so if we

What is artificial intelligence language processing, Artificial intelligenc...

Artificial intelligence language processing (AILP) is a field of computer science and linguistics concerned with the interactions among computers and human (natural) languages; it

What is serial mouse, Q. What is Serial Mouse? Mice that use standard s...

Q. What is Serial Mouse? Mice that use standard serial port are known as 'serial'. Because Serial ports 1 and 4 (COM1, COM4 under DOS, /dev/ttyS0 and /dev/ttyS3 under Unix/GNU-

Determine the quivalence partitioning, Determine the quivalence Partitionin...

Determine the quivalence Partitioning? The division of domain data into dissimilar equivalence data classes is performed using Equivalence Partitioning. It is executed for redu

Datawarehousing, ) Define a job scheduling strategy that will meet business...

) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a picto

Eme, state function and path function

state function and path function

Assembler, Assembler: Typically a modern assembler makes object code b...

Assembler: Typically a modern assembler makes object code by translating assembly instruction into op codes, & by resolving symbolic names for memory locations and any other e

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