HP Brio 81XX hp brio 81xx, advanced setup guide - Page 74

Audio Interface, MPU-401 UART MIDI Interface, Disabled by default, Joystick Interface

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5 Using Sound on Your PC Software Settings Software Settings The sound card in your HP PC supports Plug and Play. This means that, when the card is installed or reinstalled, Windows 95 is able to automatically configure various software settings to enable the computer to communicate with the card: • The IRQ (Interrupt Request) line is the signal line a device uses to notify your computer's microprocessor that it wants to send or receive data for processing. • The DMA (Direct Memory Access) channel is the signal line a device uses to transfer data directly to the computer's memory. • I/O addresses (or I/O address ranges) enable your computer's microprocessor to access various peripheral devices connected to your system when sending or receiving data. There are several such devices on your sound card. The following table gives the preferred sound settings of the card. Windows 95 may change these settings when a card is installed or reinstalled to avoid a conflict between the different accessories on your computer. Audio Interface: MPU-401 UART MIDI Interface: (Disabled by default) Joystick Interface: Stereo Music Synthesizer I/O Address Range:220H to 22FH Joystick Connector:Enabled IRQ Line:IRQ 5 Low DMA Channel:1 High DMA Channel:3 I/O Address Range:300H to 301H IRQ Line:IRQ 9 I/O Address Range:200H to 207H I/O Address Range:388H to 38BH 74

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74
5
Using Sound on Your PC
Software Settings
Software Settings
The sound card in your HP PC supports Plug and Play. This means that, when the card is installed or reinstalled,
Windows 95 is able to automatically configure various software settings to enable the computer to communicate with the
card:
•
The IRQ (Interrupt Request) line is the signal line a device uses to notify your computer’s microprocessor that it wants
to send or receive data for processing.
•
The DMA (Direct Memory Access) channel is the signal line a device uses to transfer data directly to the computer’s
memory.
•
I/O addresses (or I/O address ranges) enable your computer’s microprocessor to access various peripheral devices
connected to your system when sending or receiving data. There are several such devices on your sound card.
The following table gives the preferred sound settings of the card. Windows 95 may change these settings when a card is
installed or reinstalled to avoid a conflict between the different accessories on your computer.
Audio Interface:
I/O Address Range:220H to 22FH
Joystick Connector:Enabled
IRQ Line:IRQ 5
Low DMA Channel:1
High DMA Channel:3
MPU-401 UART MIDI Interface:
(Disabled by default)
I/O Address Range:300H to 301H
IRQ Line:IRQ 9
Joystick Interface:
I/O Address Range:200H to 207H
Stereo Music Synthesizer
I/O Address Range:388H to 38BH