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System I/O address specifications
I/O address (hex) System function (shipping configuration)
000 - 00F DMA controller
000 - CF7 PCI bus
010 - 01F Motherboard resources
020 - 021 Programmable interrupt controller
022 - 03F Motherboard resources
040 - 043 System timer
044 - 05F Motherboard resources
060 - 060 Standard 101-/102-key or Microsoft® Natural PS/2 Keyboard
061 - 061 System speaker
062 - 062 Microsoft ACPI-Compliant Embedded Controller
063- 063 Motherboard resources
064 - 064 Standard 101-/102-key or Microsoft Natural PS/2 Keyboard
065 - 065 Motherboard resources
066 - 066 Microsoft ACPI-Compliant Embedded Controller
067 - 06F Motherboard resources
070 - 071 System CMOS/real-time clock
072 - 07F Motherboard resources
080 - 080 Motherboard resources
081 - 083 DMA controller
084 - 086 Motherboard resources
087 - 087 DMA controller
088 - 088 Motherboard resources
089 - 08B DMA controller
08C - 08E Motherboard resources
08F - 08F DMA controller
090 - 09F Motherboard resources
0A0 - 0A1 Programmable interrupt controller
0A2 - 0BF Motherboard resources
0C0 - 0DF DMA controller
0E0 - 0EF Motherboard resources
0F0 - 0FF Numeric data processor
1F0 - 1F7 Primary IDE channel
274 - 277 ISAPNP Read Data Port
System I/O address specifications 77