Creative Sound Blaster Pro Getting Started page 9

Certain hardware settings of the audio card require you to enable certain
jumper(s) from a group of jumpers. An example of such a group of
jumpers is shown in Figure 1-6.
Figure l-6: A group of/(JUr jumpers.
Identifying the Jumper Locations
l-6
The jumpers on your audio card are shown in Figure I -7.
Share lJMA Jumper
Ddaolt-Non·sh:rre
Jl'll
~:~~ R F··!il
,
. .
™"C'n-
~
1/0 !lase Addre.%
Jumpt~r
w·;
B ---
Ocfaull - 220H
Interrupt Jumper
Default - IRQS
Jl'6
m:;J-u:;--
DMAJumpcrs
Ddaul!-CHI
(DRQI &DACK!)
Joystick/MIDI
Adii.ptoi-Plug
Note: When changing DMA
Channel,
both
DRQ and DACK
jumpers must
be
moved to the
correct pins
1-7: 1he location ofjumpers on
the
audio card.
The
liiil
symbol indicates an enabled Jumper or an enabled portion of a
jumper.
Sound Blaster Pro (Sony lnter/{1ce) Getting Star!ed
Knowing the Hardware Settings
The jumpers on the card allow you to define the following hardware
settings:
D 110 Addresses
D
IRQ Lines
D
DMA Channels
D·
OMA Sharing
D Joystick Port
1/0 Addresses
IRQ Lines
110 addresses (or 110 address range) are areas of memory used by your
computer's microprocessor to distinguish among various peripheral
devices connected to your system when sending or receiving data. There
are several such devices on the audio card. These devices are listed in the
table below with the factory default 1/0 address range they occupy.
IIO
~ddress R~nge
Ds~~e
....
200H to 2071-l Game Port
220H to 22FH
Audio Interface
230H to 23711 CD-ROM
388H to 38BH FM Music Synthesizer
You can change the settings of only the Audio interface. However. to
change the setting, you first need to know the interface's base 1/0 address.
The base 1/0 address is the starting address of the 1/0 address range. The
factory default settings of the Audio interface is 220H.
The IRQ (interrupt) line is the signal line your device uses to notify your
computer's central processor that it wants to send or receive data for
processing. Only the JRQ line of the Audio interface can be changed.
The factory default IRQ line setting of the Audio interface is 5.
Knowing Your Audio Card l-7