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5 i/o port address map, I/o port address map -3 – Acrosser AR-B1320 User Manual

Page 11

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A

A

R

R

-

-

B

B

1

1

3

3

2

2

0

0

U

U

s

s

e

e

r

r

s

s

G

G

u

u

i

i

d

d

e

e

2.5

I/O PORT ADDRESS MAP

Hex Range

Device

Factory Preset

000-01F

DMA controller 1

020-021

Interrupt controller 1

022-023

ALI M6117C chipset address

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

Fixed disk 1

1F0-1F8

Fixed disk 0

201

Game port

208-20A EMS

register

0

218-21A EMS

register

1

278-27F

Parallel printer port 3 (LPT 3)

2E8-2EF

Serial port 4 (COM 4)

2F8-2FF

Serial port 2 (COM 2)

300-31F

Prototype card/Streaming Type Adapter

378-37F

Parallel printer port 2 (LPT 2)

380-38F SDLC,

bisynchronous

3A0-3AF

Bisynchronous

3B0-3BF

Monochrome display and printer port 1 (LPT

1)

3C0-3CF

EGA/VGA adapter

3D0-3DF

Color/Graphics monitor adapter

3E8-3EF

Serial port 3 (COM 3)

3F0-3F7 Diskette

controller

3F8-3FF

Serial port 1 (COM 1)

Table 2-2 I/O Port Address Map

Note: The

I/O port address with the

mark “

” means that they are the BIOS CMOS default values. You can configure your

own settings according to this address map.

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