USBB17AP77016-XXX-B11 NEC Electronics, USBB17AP77016-XXX-B11 Datasheet - Page 7

• Manufacturer Part Number: USBB17AP77016-XXX-B11
• Description: DSP middleware(WMA (Windows Media Audio)decoder)
• Manufacturer: NEC Electronics

CHAPTER 1 INTRODUCTION .................................................................................................................10
CHAPTER 2 LIBRARY SPECIFICATIONS.............................................................................................15
CHAPTER 3 INSTALLATION...................................................................................................................32
CHAPTER 4 SYSTEM EXAMPLE...........................................................................................................34
APPENDIX A SAMPLE PROGRAM SOURCE ......................................................................................41
1.1
1.2
1.3
2.1
2.2
2.3
2.4
2.5
3.1
3.2
3.3
3.4
4.1
4.2
4.3
4.4
4.5
A.1 Sample Source Files ...................................................................................................................41
Middleware...................................................................................................................................10
WMA Decoder..............................................................................................................................10
Product Overview........................................................................................................................10
1.3.1 Features ...........................................................................................................................................10
1.3.2 Operating environment .....................................................................................................................12
1.3.3 Performance .....................................................................................................................................13
1.3.4 Directory configuration......................................................................................................................14
Library Overview .........................................................................................................................15
Application Processing Flow.....................................................................................................16
Function Specifications .............................................................................................................17
2.3.1 wmad_FileDecodeInit function..........................................................................................................17
2.3.2 wmad_FileDecodeData function .......................................................................................................18
2.3.3 wmad_FileGetPCM function .............................................................................................................19
2.3.4 wmad_GetVersion function...............................................................................................................20
2.3.5 wmad_FileDecodeInfo function.........................................................................................................21
2.3.6 wmad_FileCBGetData function (user-defined function)....................................................................22
Error Information.........................................................................................................................25
Memory Configuration................................................................................................................26
2.5.1 Scratch area .....................................................................................................................................27
2.5.2 Static area ........................................................................................................................................28
2.5.3 I/O buffers .........................................................................................................................................29
2.5.4 Structures .........................................................................................................................................31
Installation Procedure ................................................................................................................32
Sample Creation Procedure.......................................................................................................32
Change of Location.....................................................................................................................33
Symbol Naming Conventions ....................................................................................................33
Environment Required for Simulation Using Timing Files .....................................................34
Input Data File Creation..............................................................................................................34
Simulation....................................................................................................................................35
Sample Program Outline ............................................................................................................36
4.4.1 Sample program ...............................................................................................................................36
4.4.2 User-defined functions......................................................................................................................36
Sample Program Processing Flow............................................................................................38
A.1.1 sample.asm ......................................................................................................................................41
A.1.2 smp_data.asm ..................................................................................................................................54
User’s Manual U15683EJ1V0UM
CONTENTS
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