Target - data phase, Computer Engineering

Assignment Help:

Target abort -computer architecture:

Usually, a target holds DEVSEL# asserted through the final data phase. However, if a target desserts DEVSEL# before disconnecting without data (asserting STOP#), it indicates a target abort, which is a fatal error condition. The initiator may not retry, and usually treats it as a bus error. Note that a target may not dessert DEVSEL# as waiting with TRDY# or STOP# low; it have to do this at the starting of a data phase. After observing STOP#, the initiator will terminate the transaction at the next legal chance, but if it has already signaled its wish to continue a burst (by asserting IRDY# without deserting FRAME#), it is not allowed to dessert FRAME# till the following data phase. A target that requests a burst end (asserting STOP#) can have to wait through another data phase (holding STOP# asserted without TRDY#) before the transaction can stop.

60_Target.png

Data transfer signals on the PCI bus.

550_Target1.png

Read operation on the PCI Bus

2425_Target2.png

Read operation showing the role of the TRDY #, IRDY #

 


Related Discussions:- Target - data phase

C++, A palindrome is a string that reads the same from both the ends. Given...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

What information is stored in a typical TLB table entry, In a simple paging...

In a simple paging system, what information is stored in a typical Look-aside Buffers  TLB table entry? A classical TLB table entry contains page# and frame#, while a logical

Convention used to represent micro-operations, Q. Convention used to repres...

Q. Convention used to represent micro-operations? The convention used to represent micro-operations is: 1.  Computer register names are designated by capital letters (someti

Set up the site structure, Structuring the Web site is first step towards b...

Structuring the Web site is first step towards building the corporate Web site. Structuring includes creating a folder that includes all our picture files, text files and database

Non-uniform memory access model (numa), Non-Uniform Memory Access Model (NU...

Non-Uniform Memory Access Model (NUMA) In shared memory multiprocessor systems, local memories can be joined with every processor. The group of every local memories form the gl

Efficiency of vector processing over scalar processing, Efficiency of Vecto...

Efficiency of Vector Processing over Scalar Processing: We know that, a sequential computer processes scalar operands one at a time. Thus, if we have to process a vector of len

Classifier with classes, Consider one versus the rest voting used for class...

Consider one versus the rest voting used for classifier with three classes {a, b, c}. Given a row of data denoted as x0 suppose that the classifier for a versus the rest predicts t

Implement and - or- not gates using bit wise operator, Q. Develop  a menu d...

Q. Develop  a menu driven program to implement AND, OR, NOT gates using and without using  Bit wise operator. The menu  should  be  as follows: I.  Using Bit Wise operator I

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