OMA
Channels
The
OMA
(direct memory access) channel
is
the signal line your device
uses lo transfer data directly to the
system's
memory.
The
factory default
setting
of
the OMA channel for the Audio interface
is
I.
OMA
Sharing
The
OMA
Sharing allows your audio card to share the OMA channel with
another peripheral device. The factory default selling disables OMA
sharing.
Joystick
Port
The Joystick Port allows you to disable the joystick port on your audio
card
if
you already have one
in
your system. The factory default setting
enables the Joystick Port.
Volume
Control
Knob
1-8
The
Volume Control Knob allows you to adjust the volume
of
the
speakers connected
to
the audio card. MIN and
MAX
are labels on the
card that show you the direction to turn when decreasing
or
increasing the
volume.
If you disable the internal amplifier, you cannot use the volume
control. (see Pg. C-2).
Sound
Blaster
Pro (Sony lnterfi1cc) Getting Started
2
Setting
Up
Your
Audio Card
This chapter guides you through the process
of
installing the audio card in
your system. It also explains how to run the test prugram to
ensure
the
card has hccn installed properly. This chapter is organized as follows:
0 Checking the Hardware Settings
0 Installing the
Card
0 Connecting External Speakers
0 Installing the Software
LJ
Testing the Installation
Checking
the
Hardware
Settings
Before you install the card in your system, you should take note
of
the
following factory default settings on the card:
Audio Interface
Base I/O address
220H
1/0
address range
220H to
22FH
OMA channel
l
Interrupt
5
Joystick Port
Enabled
CD-ROM Interface
Base I/O address
230H
I/O address range
230H to 237H
Setting Up Your
Audio
Card
2-l
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