68 lines
1.8 KiB
HTML
68 lines
1.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text-html; charset=Windows-1252">
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<title>IBM PC Hardware Interrupt Table (in order of priority)</title>
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<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
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</head>
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<body>
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<h1><a name="kap_interrupt_0020"></a>IBM PC Hardware Interrupt
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Table (in order of priority)</h1>
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<p> % IRQ# Interrupt Function</p>
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<p> IRQ0 8 ~timer~ (55ms intervals, 18.2 per second)</p>
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<p> IRQ1 9 keyboard service required</p>
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<p> IRQ2 A slave ~8259~ or EGA/VGA vertical retrace</p>
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<p> IRQ8 70 real time clock (AT,XT286,PS50+)</p>
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<p> IRQ9 71 software redirected to IRQ2 (AT,XT286,PS50+)</p>
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<p> IRQ10 72 reserved (AT,XT286,PS50+)</p>
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<p> IRQ11 73 reserved (AT,XT286,PS50+)</p>
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<p> IRQ12 74 mouse interrupt (PS50+)</p>
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<p> IRQ13 75 numeric coprocessor error (AT,XT286,PS50+)</p>
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<p> IRQ14 76 fixed disk controller (AT,XT286,PS50+)</p>
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<p> IRQ15 77 reserved (AT,XT286,PS50+)</p>
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<p> IRQ3 B COM2 or COM4 service required, (COM3-COM8 on MCA PS/2)</p>
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<p> IRQ4 C COM1 or COM3 service required</p>
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<p> IRQ5 D fixed disk or data request from LPT2</p>
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<p> IRQ6 E floppy disk service required</p>
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<p> IRQ7 F data request from LPT1 (unreliable on IBM mono)</p>
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<hr>
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<table border="0" width="100%" cols="3">
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<tr>
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<td width="33%">Zurück zum <a href="inte1at0.htm">Interrupt
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Info</a>. </td>
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<td align="center" width="33%"><a
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href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
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/ 1998 </td>
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<td align="right" width="33%"><font size="1">L.Änderung <!--webbot
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bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
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startspan -->29.03.99<!--webbot bot="Timestamp" endspan
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i-checksum="13964" --> </font></td>
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</tr>
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</table>
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</body>
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</html>
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