Differences between version 6 and revision by previous author of APIC.
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| Newer page: | version 6 | Last edited on Thursday, June 1, 2006 7:46:08 pm | by ChrisOh | Revert |
| Older page: | version 5 | Last edited on Thursday, September 23, 2004 7:09:23 pm | by AristotlePagaltzis | Revert |
@@ -5,5 +5,5 @@
The Local APIC is found on uniprocessor and mulitprocessor systems and built into recent [x86] chips (Pentium Pro and up). The Local APIC can be used by the OperatingSystem to program interrupts to wake up threads, on [SMP] machines it can be used to send interrupts to another processor. The Local APIC also has a handy timer in it, you can set the timer to whatever you want and it'll start generating interrupts.
The IO-APIC is only really useful for [SMP] systems. It is used for sending various interrupts to various [CPU]s in the system. Without an IO-APIC interrupts from hardware only get delivered to the boot [CPU]. Another advantage is that [PCI] interrupts can be sent around the system without overlapping [IRQ]s.
-See also: [ACPI
notes | http://www.intel.com/design/chipsets/datashts/290566.htm] from [Intel]
+See also: [APIC
notes | http://www.intel.com/design/chipsets/datashts/290566.htm] from [Intel]
