IPOXUSA IP-M45A1, User Manual

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Appendix
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Each peripheral device in the system is assigned a set of I/O port addresses
which also becomes the identity of the device.
The following table lists the I/O port addresses used.
4.1 I/O Port Address Map
Address Device Description
00000000 - 0000000F DMA Controller
00000080 - 0000009F DMA Controller
000000C0 - 000000DF DMA Controller
00000020 - 00000021 Programmable Interrupt Controller
000000A0 - 000000A1 Programmable Interrupt Controller
00000040 - 00000043 System Timer
00000044 - 00000047 System Timer
00000060 - 00000064 Keyboard Controller
00000070 - 00000073 System CMOS/Real Time Clock
000000F0 - 000000FF Math Co-processor
000001F0 - 000001F7 Primary IDE
00000274 - 00000277 ISAPNP Read Data Port
00000279, 00000A79
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000002E8 - 000002E7 Communications Port (COM4, If use)
000002F8 - 000002FF Communications Port (COM2, If use)
00000378 - 0000037A Parallel Port (If use)
000003B0 - 000003BF MDA/MGA
000003C0 - 000003CF EGA/VGA
000003D4 - 000003D9 CGA CRT register
000003E8 - 000003EF Communications Port (COM3, If use)
000003F0 - 000003F5 Floppy Diskette
000003F6 - 000003F6 Primary IDE
000003F7 - 000003F7 Communications Port (COM1, If use)
00000400 - 0000041F South Bridge SMB
00000480 - 0000041F South Bridge GPIO
000004D0 - 000004D1 IRQ Edge/Level Control Ports