• Register
Welcome to the Question Answers about All Engineering Fields. Please use search option at the top right before asking questions.

Different types of interrupts in a microprocessor system???

0 votes
Be the first
What are the different types of interrupts in a microprocessor system, explain plz..
asked Sep 21, 2013 in Computer Engineering by sheebaaltaf  

1 Answer

0 votes
Be the first
In the normal execution of a program there are three types of interrupts that are:
 
  1. External Interrupts: These types of interrupts generally come from external input / output devices which are connected externally to the processor. They are generally independent and oblivious of any programming that is currently running on the processor. 
  2. Internal Interrupts: They are also known as traps and their causes could be due to some illegal operation or the erroneous use of data. Instead of being triggered by an external event they are usually triggered due to any exception that has been caused by the program itself. Some of the causes of these types of interrupts can be due to attempting a division by zero or an invalid opcode etc.
  3. Software interrupts: These types if interrupts can occur only during the execution of an instruction. They can be used by a programmer to cause interrupts if need be. The primary purpose of such interrupts is to switch from user mode to supervisor mode.

 

 

answered Sep 21, 2013 by Saba Khan  

Related questions

0 votes
Be the first
1 answer 8 views
0 votes
Be the first
1 answer 54 views
0 votes
Be the first
0 answers 23 views
0 votes
Be the first
2 answers 105 views
0 votes
Be the first
1 answer 14 views
Welcome to All Engineering Questions Answers QnA, where you can ask questions and receive answers from other members of the community.
...