User`s manual

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5-6 ISA I/O Address Map
I/O Address (HEX) I/O device
000 - 01F DMA Controller 1, 8237A-5
020 - 03F Interrupt Controller 1, 8259A
040 - 05F System Timer, 8254-2
060 - 06F 8042 Keyboard Controller
070 - 07F real-time Clock/CMOS and NMI Mask
080 - 09F DMA Page Register, 74LS612
0A0 - 0BF Interrupt Controller 2, 8259A
0C0 - 0DF DMA Controller 2, 8237A-5
0F0 - 0FF i486 Math Coprocessor
1F0 - 1F8 Fixed Disk Drive Adapter
200 - 207 Game I/O
20C - 20D Reserved
21F Reserved
278 - 27F Parallel Printer Port 2
2B0 - 2DF Alternate Enhanced Graphic Adapter
2E1 GPIB Adapter 0
2E2 - 2E3 Data Acquisition Adapter 0
2F8 - 2FF Serial Port 2 (RS-232-C)
300 - 31F Prototype Card
360 - 363 PC Network (Low Address)
364 - 367 Reserved
368 - 36B PC Network (High Address)
36C - 36F Reserved
378 - 37F Parallel Printer Port 1
380 - 38F SDLC, Bisynchronous 2
3B0 - 3BF Monochrome Display and Printer Adapter