Creative SB0350 Hardware Programming Guide - Page 4

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Contents Introduction What You Should Know...ix Scope and Manual Organization...ix Document Conventions...x Determining User's Sound Blaster Card ...xii Determining User's Card Settings...xiii Chapter 1 Hardware Overview Anatomy of Sound Blaster Family of Audio Cards...1-2 Digital Sound Processor Chip...1-2 Mixer Chip...1-3 FM Synthesizer Chip...1-3 Bus Interface Chip...1-4 Advanced Signal Processor ...1-4 Block Diagrams for Sound Blaster Family of Audio Cards...1-6 Chapter 2 Introduction to DSP Programming DSP I/O Addresses ...2-2 Resetting DSP...2-2 Reading from DSP...2-3 Writing to DSP ...2-4 Handling Interrupts from DSP ...2-4 Sharing of Interrupts...2-5 Configuring DMA and Interrupt Settings ...2-6 Chapter 3 Digitized Sound I/O Programming Digitized Sound Operation Modes ...3-2 Digitized Sound Data Format...3-2 Digitized Sound I/O Transfer Rate...3-4 Direct-Mode ...3-4 Single-cycle DMA Mode...3-4 Auto-initialize DMA Mode...3-5 High-Speed DMA Mode...3-6 ADPCM DMA mode...3-6 DSP Digitized Sound I/O Capability...3-7

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Contents
Introduction
What You Should Know
...............................................................................................
ix
Scope and Manual Organization
...................................................................................
ix
Document Conventions
..................................................................................................
x
Determining User's Sound Blaster Card
.....................................................................
xii
Determining User's Card Settings
..............................................................................
xiii
Chapter 1
Hardware Overview
Anatomy of Sound Blaster Family of Audio Cards
....................................................
1-2
Digital Sound Processor Chip
.....................................................................
1-2
Mixer Chip
..................................................................................................
1-3
FM Synthesizer Chip
...................................................................................
1-3
Bus Interface Chip
.......................................................................................
1-4
Advanced Signal Processor
........................................................................
1-4
Block Diagrams for Sound Blaster Family of Audio Cards
.......................................
1-6
Chapter 2
Introduction to DSP Programming
DSP I/O Addresses
...................................................................................................
2-2
Resetting DSP
............................................................................................................
2-2
Reading from DSP
.....................................................................................................
2-3
Writing to DSP
..........................................................................................................
2-4
Handling Interrupts from DSP
...................................................................................
2-4
Sharing of Interrupts
....................................................................................
2-5
Configuring DMA and Interrupt Settings
...................................................................
2-6
Chapter 3
Digitized Sound I/O Programming
Digitized Sound Operation Modes
............................................................................
3-2
Digitized Sound Data Format
......................................................................
3-2
Digitized Sound I/O Transfer Rate
..............................................................
3-4
Direct-Mode
...............................................................................................
3-4
Single-cycle DMA Mode
............................................................................
3-4
Auto-initialize DMA Mode
.........................................................................
3-5
High-Speed DMA Mode
.............................................................................
3-6
ADPCM DMA mode
...................................................................................
3-6
DSP Digitized Sound I/O Capability
...........................................................
3-7