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

Binary search tree, Given the following interface public interface WordS...

Given the following interface public interface WordSet extends Iterable { public void add(Word word); // Add word if not already added public boolean contains(Word word);

Regular expression pattern in a wsdl document, Probelm: (a) Show the at...

Probelm: (a) Show the attributes used by Regular Expression Pattern in a WSDL document. (b) Describe the three standard wire formats for transmitting Web Service requests a

Perform on occurrence of an interrupt, Q. Perform on occurrence of an inter...

Q. Perform on occurrence of an interrupt? Determining these requirements let's work out steps that CPU should perform on occurrence of an interrupt. The CPU should find

What is the task of the pass 2 in a two-pass assembler, In a two-pass assem...

In a two-pass assembler, the task of the Pass II is to? Ans. The task of the Pass II is to synthesize the target program in a two-pass assembler.

Vertical alignment of fields one below the other, Which Command permits for...

Which Command permits for vertical alignment of fields one below the other. UNDER Command is used ofr vertical alignment.

Differentiate between the message and method in c++, Message in C++ : *...

Message in C++ : * Objects converse by sending messages to each other. * A message is sent to invoke a method in C++.   Method in C++: * Gives response to a message

Create the website home page, Now when a site structure is set up for stori...

Now when a site structure is set up for storing pages and assets for Compass site, you'll create the first page-a home page for the site. As you build this page, you will add text,

Io devices and i/o subsystem and direct memory access, Why IO devices canno...

Why IO devices cannot be connected directly to the system bus? Ans: The IO devices can't be directly connected to the system bus because the following reason A) The data tra

Why network layer is used, Network Layer is used for (A)  Breaking up ...

Network Layer is used for (A)  Breaking up the data in frames for transmission (B)  Deal with Error correction (C)  Automatic Recovery of Procedure (D)  Physica

Floating point format, consider the 8 bit floating point format including s...

consider the 8 bit floating point format including support for normalised nimbers and nonnumeric values.it included 3 bits for mantissa and 4 bitys for excess 7 exponent

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