Specifications

D-3
I/O Address Map
Address Assignment
000-01F DMA Controller 1
020-021 Interrupt Controller 1
040-05F Timer/Counter
060-06F Keyboard Controller
070-07F RTC, NMI Register
080-091 DMA Page Register
092-09F System Control Port
0A0-0A1 Interrupt Controller 2
0C0-0DF DMA Controller 2
0F0-0FF Numeric Processor
1F0-1FF Hard Disk Controller
200-20F Game Port
220-22F Audio
278-27A Parallel Port 3
2F8-2FF Serial Port 2
320-324 Hard Disk Controller
378-37A Parallel Port 2
388-38B Audio Controller
3B0-3B4 VGA Controller
3BC-3BE Parallel Port 1
3C0-3DF VGA Controller
3F0-3F7 Floppy Disk Controller
3F8-3FF Serial Port 1