CHAPTER 13: I/O SYSTEMS
CHAPTER 13: I/O SYSTEMS
CHAPTER 13: I/O SYSTEMS
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Interrupts<br />
<br />
CPU Interrupt-request line triggered by I/O device<br />
<br />
System save the status and jump to interrupt handler at a fixed address in<br />
memory.<br />
Interrupt vector table: reduce the need to search all possible source.<br />
Interrupt chaining: for systems with more devices.<br />
<br />
Maskable to ignore or delay some interrupts<br />
<br />
Interrupt vector to dispatch interrupt to correct handler<br />
<br />
<br />
Based on priority<br />
Some nonmaskable<br />
<br />
Interrupt mechanism also used for exceptions
Change language