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AR-B1570 User’s Guide
9
2.4.1 I/O Port Address Map
Hex Range Device
000-01F DMA controller 1
020-021 Interrupt controller 1
022-023 Cyrix CS5530
040-04F Timer 1
050-05F Timer 2
060-06F 8042 keyboard/controller
070-071 Real-time clock (RTC), non-maskable interrupt (NMI)
080-09F DMA page registers
0A0-0A1 Interrupt controller 2
0C0-0DF DMA controller 2
0F0 Clear Math Co-processor
0F1 Reset Math Co-processor
0F8-0FF Math Co-processor
170-178 Reserved for Fixed disk 1
1F0-1F8 Fixed disk 0
201 Reserved for Game port
208-20A EMS register 0
210-213 SSD
214 Watchdog
218-21A EMS register 1
278-27F Parallel printer port (depends on setup assignment)
290-293 SSD
2E8-2EF Serial port (depends on setup assignment)
2F8-2FF Serial port (depends on setup assignment)
300-31F Prototype card/streaming type adapter
320-33F Reserved
378-37F Parallel printer port (depends on setup assignment)
380-38F SDLC, bisynchronous
3A0-3AF Bisynchronous
3B0-3BF Monochrome display and printer port 3 (LPT 3)
3C0-3CF EGA/VGA adapter
3D0-3DF Color/graphics monitor adapter
3E8-3EF Serial port 3 (depends on setup assignment)
3F0-3F7 Reserved for diskette controller
3F8-3FF Serial port (depends on setup assignment)
I/O Port Address Map