5 i/o port address map, I/o port address map -3 – Acrosser AR-B1320 User Manual
Page 11
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.
2-3