What Is Plug And Play Isa Standards; Surround Sound - PC Chips CMI8330 English Manual

Media Rack System Mixer
Hardware/Software Section 1- Hardware Introduction

1.4 What is Plug and Play ISA Standards ?

The ISA bus architecture allows allocation of I/O address spaces, DMA
channels, and interrupt levels among multiple ISA cards. However, the ISA
interface has no defined hardware or software mechanism for allocating these
resources. As a result, configuration of ISA cards is typically done with
jumpers that change the decode maps for I/O spaces and steer the DMA and
interrupt signals to different pins on the bus. Further, system configuration
files may need to be updated to reflect these changes. Users typically resolve
sharing conflicts by referring to documentation provided by card
manufacturer. For the average user , this configuration process can be difficult
and frustrating.
A Plug and Play-compliant system can identify the Plug and Play ISA cards
and the resources they use, then program these resources so they do not
conflict. The conflict-resolution scheme used on Plug and Play ISA cards
essentially puts all cards 'to sleep', then reads the card identification and the
information about what the card can do and the resources it requires. This
information can include what resources are programmable and over what
ranges they can be programmed. With this information, the system can
configure the card in a way that prevents conflicts with other cards in the ISA
bus.

1.5 Surround Sound

Our surround sound upgrade board takes any ordinary stereo signal as input
and produces an output signal with dramatically widened stereo imaging and
enhanced realism. And requires no extra speakers or special encoding of input
signals.
You can turn surround sound on or off by program CMMIX.COM at DOS. At
Windows you also can turn it on or off by Audio Rack mixer. And you can run
Windows applications DEMO3D to test surround sound functions.
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