Content deleted Content added
+ja |
Williammentz (talk | contribs) IRQ's in detail |
||
Line 21:
[[ja:APIC]]
[[ru:APIC]]
<div style='text-align: left; direction: ltr; margin-left: 1em;'>
When working with computer hardware, installing and removinge devices, the system relies on Interrupt Requests (IRQ). There are default settings that are configured in the system BIOS and recognized by the operating system. These default settings can be altered by advanced users. Modern Plug and Play technology has not only reduced the need for concern for these settings, but has virtually eliminated manual configuration.<br />
<br />
== The system uses 16 default IRQ's. ==
</div>
<div style='text-align: left; direction: ltr; margin-left: 1em;'>
IRQ 0 - System timer. Reserved for the system. Cannot be changed by a user.<br />
IRQ 1 - Keyboard. Reserved for the system. Cannot be altered even if no keyboard is present or needed.<br />
IRQ 2 - Second IRQ controller. Further explanation pending. IRQ's 8-15 rely on this.<br />
IRQ 3 - COM 2(Default) COM 4(User)<br />
IRQ 4 - COM 1(Default) COM 3(User)<br />
IRQ 5 - Sound card or LPT2(User)<br />
IRQ 6 - Floppy disk controller<br />
IRQ 7 - LPT1(Parallel port)<br />
IRQ 8 - Real time clock<br />
IRQ 9 - Free / Open interrupt / Available<br />
IRQ 10 - Free / Open interrupt / Available<br />
IRQ 11 - Free / Open interrupt / Available<br />
IRQ 12 - PS2 Mouse / If no PS2 mouse is used, this can be used for other periferals<br />
IRQ 13 - Math co-processor. Cannot be changed<br />
IRQ 14 - Primary IDE. If no IDE this can be changed<br />
IRQ 15 - Secondary IDE<br />
</div>
More to follow. BILL<br />
| |||