How i-o interface communicate with processor, Computer Engineering

Assignment Help:

Q. How I-O interface communicate with processor?

The above illustration clearly specifies need communication between processor and I/O interface. This communication includes subsequent steps:

1. Commands like READ SECTOR, WRITE SECTOR, SEEK track number and SCAN record-id sent over control bus. 

2. Data which is exchanged between processor and I/O interface sent over data bus.

3. Status: As peripherals are very slow it's important to know the status of the I/O interface. Status signals are BUSY or READY or in an error condition from I/O interface.

4. Address recognition as every word of memory has an address so does every I/O device. So an I/O interface should identify one unique address for every peripheral it controls.


Related Discussions:- How i-o interface communicate with processor

Vugen recording and scripting, LoadRunner script code acquired from recordi...

LoadRunner script code acquired from recording in the ANSI C language syntax, shown by icons in icon view until you click Script View.

Synchronization latency problem, Synchronization Latency Problem:  If two s...

Synchronization Latency Problem:  If two simultaneous processes are performing remote loading, then it is not recognized by what time two processes will load, as the issuing proces

What is sap luw or update transaction, What is SAP LUW or Update Transactio...

What is SAP LUW or Update Transaction? Update transaction (or "SAP LUW") This is a set of updates terminated by an ABAP/4 commit.  A SAP LUW may last much longer than a data

Define deadlock with resource request and allocation graph, Define Deadlock...

Define Deadlock with Resource request and allocation graph (RRAG) Deadlocks can be described through a directed bipartite graph termed as a RRAG that is Resource Request All

What are the data types of the abap/4 layer, What are the Data types of the...

What are the Data types of the ABAP/4 layer? Possible ABAP/4 data types: C: Character. D: Date, format YYYYMMDD. F: Floating-point number in DOUBLE PRECISION (8 bytes)

Distributed network architecture, Problem a) Distributed network archi...

Problem a) Distributed network architecture is whereby services are executed and distributed  among various computers. Give two advantages and two disadvantages of the distrib

Define programmable logic array and programmable array logic, Define Progra...

Define Programmable Logic array & Programmable Array Logic? Combinational ckt is implemented with ROM Do not care conditions become an address input. PLA is alike to ROM. PLA d

Explain the term control dependence, Control Dependence Segments or I...

Control Dependence Segments or Instructions in a program can include control structures. So, dependency among statements is able to be in control structures also. However the

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