Why is the data bus in most microprocessors bidirectional, Computer Engineering

Assignment Help:

Why is the data bus in most microprocessors bidirectional while the address bus is unidirectional?

 Data Bus:  These lines are used to send data to memory by output ports and to receive data from memory by input ports. Thus, data bus lines are bi-directional.

 Address Bus:  On these lines the CPU send out the address of the memory location or I/O port that is to be written to or read from. Here, the communiation is one-way, the address is send from CPU to memory and I/O port and as these lines are unidirectional.

 


Related Discussions:- Why is the data bus in most microprocessors bidirectional

What are the end-to-end layers of osi structure, What are the end-to-end la...

What are the end-to-end layers of OSI structure The layers 4-7 of ISO-OSI reference model communicate with peer entities in end systems. There is not any communication with ent

Give the syntax of if-else statement, Give the syntax of "if-else" and "sw...

Give the syntax of "if-else" and "switch" statements and explain. if else This is used to decide whether to do something at a special point, or to decide between two courses

Computer peripherals, Describe the 8251 A programmable communication interf...

Describe the 8251 A programmable communication interface

Non repudiation, What is non-repudiation? how can it be achieved in designi...

What is non-repudiation? how can it be achieved in designing e-cash based system?

Explain one dimensional array, Explain one dimensional arrays In one di...

Explain one dimensional arrays In one dimensional arrays array name is really a pointer to the first element in the array. Second element of the array can be accessed by using

Define the term ''turn-around'', The "turn-around" time of a user job is th...

The "turn-around" time of a user job is the? Ans. Total time taken to execute the job is called "turn around" time.

What is linear addressing mode, What is Linear Addressing Mode. Ans. L...

What is Linear Addressing Mode. Ans. Linear Addressing: Addressing is the procedure of selecting one of the cells in a memory to be written in or to be read from. So as to fa

Eequivalences rules, Eequivalences rules: This conveys a meaning that ...

Eequivalences rules: This conveys a meaning that is actually much simpler so than you would think on first inspection.  Hence we can justify this, by using the following ch

Excess 3 codes, Explain Excess 3 Codes Ans. Excess 3 Codes 1....

Explain Excess 3 Codes Ans. Excess 3 Codes 1. This is the other form of BCD code. All decimal digits are coded in 4 bit binary code. 2. The code for all decimal di

What is the scope of public members in all classes, What is the Scope of pu...

What is the Scope of public/private/friend/protected/protected friend?    Scope of public/private/friend/protected/protected friend. Visual Basic/Visual C# Public/pub

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