Creative Sound Blaster Pro Getting Started page 10

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