![](/images/new-backgrounds/1242115/242115225x1.webp)
Specifications
System I/O address specifications
I/O address (hex) | System function (shipping configuration) |
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|
000 - 01F | DMA controller |
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020 - 021 | Program interrupt controller |
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024 - 025 | Program interrupt controller |
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028 - 029 | Program interrupt controller |
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|
02C - 03D | Program interrupt controller |
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02E - 02F | Motherboard resources |
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030 - 031 | Program interrupt controller |
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034 - 035 | Program interrupt controller |
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038 - 039 | Program interrupt controller |
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03C- 03D | Program interrupt controller |
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040 - 043 | System timer |
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|
Motherboard resources | |
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|
System timer | |
|
|
060 | Standard |
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|
061 | Motherboard resources |
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|
062 | Microsoft |
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063 | Motherboard resources |
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|
064 | Standard |
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|
065 | Motherboard resources |
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066 | Microsoft |
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|
067 | Motherboard resources |
|
|
070 | Motherboard resources |
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|
System CMOS/real time clock | |
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080 | Motherboard resources |
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|
Direct memory access controller | |
|
|
092 | Motherboard resources |
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|
Direct memory access controller | |
|
|
Program interrupt controller | |
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|
Program interrupt controller | |
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|
Program interrupt controller | |
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|
Program interrupt controller | |
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|
Program interrupt controller | |
|
|
Motherboard resources | |
|
|
0B4- 0B5 | Program interrupt controller |
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|
Program interrupt controller | |
|
|
0BC- 0BD | Program interrupt controller |
Continued