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When implementing a state machine in VHDL, the state variables need to be listed in the port list of the ENTITY section. If not, VHDL considers them as buried nodes and disables the output pins. This means there is no way of using test equipment to look at the machine state.

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What is attribute in vhdl?

Types and objects declared in a VHDL description can have additional information, called attributes, associated with them. There are a number of standard pre-defined attributes. An attribute is referenced using the ''' notation. Forexample, thing'attr refers to the attribute attr of the type or object thing.


What is Euler's rule for classifying figures as traceable and not traceable?

If a figure has 2 odd nodes and the rest even nodes then the figure is traceable.


1 sketch all binary tree with six pendent vertices?

A binary tree with six pendent vertices will have five internal nodes. The pendent vertices will be attached to these internal nodes. The tree will have a root node with two child nodes, each of which will have two child nodes, resulting in a total of six pendent vertices. The structure will resemble a balanced binary tree with a depth of two.


Which topology has all its nodes connected directly to one center point and has no other connections between nodes?

The topology you are describing is known as a star topology. In this configuration, all nodes are directly connected to a central hub or switch, which serves as the main point of communication. There are no direct connections between the nodes themselves, meaning any data transmitted must pass through the central hub. This design simplifies troubleshooting and management, but if the central hub fails, the entire network goes down.


What is true concerning physical and logical topologies?

Logical topologies consist of virtual connections between nodes.

Related Questions

Where and how do you declare buried nodes in VHDL?

In VHDL, buried nodes, also known as "implicit signals," are typically declared within the architecture of a design entity. You can declare them as signals in the architecture section using the signal keyword. These nodes are not visible outside the architecture and are used for internal connections between components or processes. For example, you might declare a buried node like this: signal buried_signal : std_logic;.


What is VHDL calculators?

A virtual calculator can be implemented using VHDL. We call it VHDL calculator.


What is the vhdl code for binary to hex convertion?

vhdl code for binary to Hexadecimal ?


Is VHDL text or graphic programmed?

VHDL is a text based programming language.


What are the supporting functions by vhdl?

VHDL provides conversion functions and resolution functions.


Vhdl code for assending order of numbers?

vhdl code for ascending order of numbers


Which operator cannot be synthesized by a VHDL synthesis tool?

"&" operator is not synthesized by VHDL synthesis tool.


Why function in VHDL?

A function is a subprogram written in VHDL. This program can be called and used in other programs.


How do you build 8085 using vhdl?

VHDL is a hardware description language. It describes the functionality of a hardware as a program. If we know the architecture of 8085, the same can be implemented or coded using VHDL.


What is the latest VHDL version?

In 2008, Accellera released VHDL 4.0 to the IEEE for balloting for inclusion in IEEE 1076-2008. The VHDL standard IEEE 1076-2008 was published in January 2009. Currently, IEEE 1076-2008 is the latest version of VHDL.


4 Difference between c program and vhdl program?

There are 4 main differences between C programming and VHDL programming. C is a mid-level language, while VHDL is a hardware description language. C can handle one type of instruction, while VHDL can handle two. C does not require as much resource usage as VHDL. C can be written only with logical thinking, but a VHDL programmer must understand hardware circuits.


What is the basics of VHDL?

VHDL is a hardware description language. You can describe the hardware in three different ways using VHDL. 1. dataflow model 2. behavioral model 3. structural model