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

Determine the types of software, Determine the types of software There ...

Determine the types of software There are two types of software today: Application and systems. Meaning of the two changes computer to computer. As we concentrate on large c

Name the modes of 8255 programmable peripheral interface, What are the diff...

What are the different modes in that 8255 Programmable Peripheral Interface (PPI) can operate?  24 I/O lines in 3-8-bit port groups - A, B, C A, B can be 8-bit input

Explain the term- macro, Explain the term- macro? A term macro is a set...

Explain the term- macro? A term macro is a set of instructions, which can be executed repeatedly. It is useful for automating certain routine tasks like printing reports etc. T

Network properties, Network Properties There are many properties are as...

Network Properties There are many properties are associated with interconnection networks:- 1) Topology: It signify how the nodes a network are organised. A variety of top

Explain functional roles of information system, Q. Explain Functional Roles...

Q. Explain Functional Roles of Information System? Functional Roles of Information System 1 Lower Costs - a) Use IT to significantly reduce the cost of business proce

Calculate quantities from information in bayesian network, 1. A Bayesian ne...

1. A Bayesian network is shown for the variables paper Thickness, paper Alignment and Print Quality. The conditional probabilities are provided in the tables beside the nodes. Here

Where telephone traffic is measured, Telephone Traffic is measured in ...

Telephone Traffic is measured in (A)  Seconds.  (B)  Hours. (C)  Erlang       (D)  Pulses per minute. Ans: Telephone Traffic is measured in Erlang.

What is the necessity of an interface, What is the necessity of an interfac...

What is the necessity of an interface?  Any device that has to be linked to a CPU requires an interface. This takes care of the mismatch in speed, data and electrical character

Determine octant to hexadecimal conversion, What is the Octant to hexadecim...

What is the Octant to hexadecimal conversion of 734 ? Ans. (734) 8      = (1 D C) 16 0001 ¦ 1101 ¦ 1100 1         D         C

fisherpersons are not over-fishing, Prepare the Relational Tables to signi...

Prepare the Relational Tables to signify the following situation, which is defined by means of text and an Entity Relationship Diagram. Note: Do not attempt to vary the ERD. Yo

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